Articles, Conference and Workshop Papers Collection

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Market margin distribution along the beef cattle market chain in Longido district, Arusha
(Tanzania Journal of Agricultural Sciences, 2024) Malaki,C.O; Phillip,D; Isinika,A.C
The distribution of market margins plays a crucial role in the performance of the beef market chain. However, there is a lack of understanding about the fairness of this distribution among the chain's participants. This study examines the margin shares among actors in the beef cattle market chain in Longido and Arusha districts. Data were collected from 270 respondents in these areas and analyzed using SPSS software. Through a cost-benefit analysis, the study assessed the distribution of market margins among the actors. The results showed that livestock keepers and traders receive a smaller portion of the net gross margin, 18% and 29.2% respectively, compared to their cost shares of 21.1% and 32.8%. Meanwhile, butcher operators obtain 52.8% of the market margin against a production cost share of 46.1%. These findings suggest that actors are equitably compensated. However, the study identified issues such as traders' reluctance to use weighing scales, which negatively impacts livestock keepers. Additionally, there is a regulatory gap with laws, such as selling livestock by weight at all markets, not being enforced. Addressing these issues could promote better husbandry practices, increase cattle value, and improve income distribution for farmers.
Factors influencing farmers’ participation in the beef market chain: the case of Arusha city and Longido district, Tanzania
(Tanzania Journal of Agricultural Sciences, 2024) Malaki, C.O; Phillip,D.; Isinika,A.C.
The performance of the beef industry in Tanzania is heavily dependent on the participation of a few actors in it. The decision to participate in the beef market chain is likely to be influenced by several factors. However, there is a paucity of knowledge on the determinants of farmers’ decisions to participate in the beef market chain. Therefore, this paper assesses factors that influence farmers’ participation in the beef market chain in Longido District and Arusha City. Data for this study were collected from 270 respondents in Longido District and Arusha City. Quantitative data were analyzed using SPSS software. The number of cattle sold used as a proxy variable for participation in the beef market chain. Data were analyzed using the linear regression model. Factors that were identified to have a significant positive influence on the famers’ participation in the beef market chain were distance to the nearby auction (p = 0.026), number of cattle owned by the household (p = 0.05), plot size for improved pasture development (p = 0.000), and repeated transaction (p = 0.008). Meanwhile, a farmer’s age had a significant negative influence on the farmers’ participation in the beef market chain (p = 0.097). The results show that 56.4% of the respondents kept cattle, 39.1% kept shoats, 1.8% were self-employed providing veterinary services and 2.7% were casual labourers. The results also show that distance positively influenced participation in the beef market chain because farmers from a distance villages once they reached the auction were forced to sell whatever stocks they brought. The opportunity cost was too high for them to return with their animals if they do find the price at the auction too low. In conclusion, policies should emphasize equipping the auction with infrastructure that shall reduce transaction costs to all actors. This will enable a fair price determination in which each actor will have a commitment and participate to get a good price based on live weight.
Factors influencing smallholder farmers’ access to formal financial services in Morogoro Region, Tanzania
(AJOL, 2023) Seluhinga, N.S.
This study was conducted to evaluate smallholder farmers’ inclusion to formal financial services in Mvomero, Morogoro Rural and Kilosa districts, in Morogoro region, Tanzania. Specifically, the paper was set to analyse the socio-economic factors that influence the access to formal financial services in the study area. A sample of 240 respondents was covered by the study, whereby multistage random sampling was employed to select respondents in the study area. The data were coded and analyzed with the aid of Statistical Package for Social Sciences (SPSS) computer software. A binary logistic regression model was used to test the effects or influence of socio-economic factors on inclusive formal financial services. Results showed that socio economic factors such as age, income, education, occupation and distance to formal financial institutions affect the access and use of formal financial services (p<0.05). The study has also revealed that savings services are popular therefore, used by the majority of adult population, followed by transaction services, credit, then insurance services Conversely, the study concludes that cost of services, ignorance, low income were among the reasons mentioned by the respondents as hindering inclusion to formal financial services in the research area. To this effect the study recommends effective linkages between financial institutions in order to increase the proportion of people with financial access, capacity building to financial institutions, improving infrastructure, improving condition and quality of financial services and to offer finance education to the people.
Profitability of oil palm farming in Kigoma Rural District, Tanzania
(AJOL, 2023) Andrea, A.; Mishili, F.
Oil palm (Elaeis guineensis) is one of the world’s most efficient oil-bearing crop. The crop has great contribution to the economy of the world’s leading producers, that is, Indonesia and Malaysia. In Tanzania however, the leading region in oil palm farming is facing high rate of poverty with 48.9% of its population living below the poverty line, that is, below 1.9 USD per day. Further, the country’s annual palm oil production of 16 593 tons is short of the demand of 364 800 tons per annum. Based on that, the study aimed to determine profit attained from oil palm production systems in Kigoma rural district. A cross sectional design was adopted and a semi structured questionnaire was used to collect data from 260 respondents randomly selected from five villages in Kigoma rural district. Descriptive statistics was used for analysis of demographic data and profitability was determined by Gross margin. Demographic profile shows that men own 90% of the farms, 70% of oil palm farmers are in the active age of 20 - 60 years, 90% are married, 93% depend solely in agriculture and 92% of farmers have acquired primary education. Further findings show that farmers have adopted local, improved and mixed production systems by 73%, 2% and 25% respectively. And that at an average of 96 oil palm trees per farmer at an area of about 1.7 hectares, these farmers earn less than TZS 1 million per hectare. Furthermore, they fetch a gross margin of 7%, 35% and 19% from the three systems respectively. It was noted that, inadequate cultivation of Tenera variety oil palms and poor management practices are greater hindrance to higher productivity and profitability of oil palm farming in the study area. The government, investors and farmers must put more efforts to overcome those challenges.
Organophosphorus pesticide residues in tomatoes: a case of Mlali and Doma Wards in Mvomero District, Morogoro
(AJOL, 2024) Wenaty, A.; Mkojera, B.
Extensive pesticide use poses a significant challenge to Tanzania's horticulture industry, particularly affecting the leading tomato producer, the Morogoro region. This study focused on assessing organophosphorus pesticide residues in tomatoes from Mlali and Doma divisions in the Mvomero district of Morogoro. A total of 40 samples were collected from both farms and markets for analysis, utilizing Gas Chromatography with Mass Spectrometry (GC-MS) for extract analysis. Statistical Analysis Software (SAS) Version 9.1 was employed for data analysis. The study identified six organophosphorus pesticides, with concentrations in the following order: pirimiphos methyl > diazinon > fenitrothion > dimethoate > profenofos > chlorpyrifos. Pirimiphos methyl levels ranged from 3.32±0.03 to 9.53±0.05 μg/kg in Mlali samples and 0.20±0.01 to 6.33±0.03 μg/kg in Doma samples. Chlorpyrifos was detected in the lowest concentrations across all samples. Interestingly, higher pesticide levels were found in market samples compared to those from farms, suggesting potential misuse post-harvest and during distribution. This misuse could have severe consequences for tomato consumers, including both carcinogenic and non-carcinogenic effects. The study underscores the importance of educating farmers on the proper use of pesticides and the potential adverse effects resulting from their misuse. Addressing this issue is crucial for ensuring the safety of tomatoes in the market and protecting consumers from harmful effects associated with pesticide residues.
Farmers’ preferences for tropically adapted improved chicken breeds in selected agro-ecological zones in Tanzania
(AJOL, 2024) Wolfgang, G.; Makindara, J.; Mbaga, S.
This study was carried out in twelve villages that were implementing the African Chicken Genetic Gain (ACGG) project in Mbeya and Mwanza regions. Multistage random sampling method was employed from Agro-Ecological Zone (AEZ) level to a village level in which respondents were systematically selected from a distribution list of chicks. Data were collected using structured questionnaires and 132 respondents were interviewed. The objective of this study was to identify smallholder farmers’ preference traits of improved chicken breeds compared to local ones. The results showed that, the majority of smallholder farmers i.e. 104 (78.8%) in the study areas preferred improved chicken breeds due to the traits of fast growth rate, large body size at maturity, higher egg production, easily adaptive to the local environment, bigger sized eggs and being sold easily. Moreover, the chi- square test shows that, improved chicken traits of egg production, large egg size and being sold at good prices were statistically significant at (p<0.05) between regions. However, 28 smallholder farmers i.e. 21.2%, preferred local chicken due to the traits of ability to survive, scavenging ability, good meat taste, mothering ability, good hatching ability and egg taste. In this case, the chi-square test shows that, local chicken trait of ability to survive had significant difference (p<0.05) between regions. It is therefore concluded that improved chicken breeds were preferred by the majority of farmers due to their traits such as fast growth rate and high egg production. It is thus recommended that chicken breeders should introduce chicken which have traits preferred by smallholder farmers.
The role of social networks in business development, investment and employment creation in Tanzania’s Emerging Urban Centres
(Sokoine University of Agriculture, 2022) Nyaki Stephen Aniseth
This study examines the role of social networks in influencing business developments, investment, and employment creation in Ilula and Madizini EUCs. The study focuses on answering the following research questions: i) What are the kinds of businesses that operate in Ilula and Madizini EUCs? ii) What are the characteristic features of EUC businesses in terms of flows of goods and services in and outside Ilula and Madizini EUCs? iii) How are business networks in Ilula and Madizini EUCs structured? iv) What are available trading opportunities and potentials given business embeddedness and brokerage positions in Ilula and Madizini business network? Similarly, the study aims to test the following hypotheses: i) The size and influence of social networks of EUC business owners do not affect business performance. ii) Strong and weak social network ties of EUC businesses do not influence business investment choices in EUCs. iii) The size and influence of social networks of EUC business owners do not influence EUC business employment creation. This study took its point of departure from Social Network Theory, which argues that economic actors’ actions are embedded within their social relations and that their positions within the web of social interactions determine their opportunities and constraints. It examines business development from a social network perspective, which enables researchers to understand the evolution of different businesses in small towns over time and space. Empirically, the study focuses on Ilula and Madizini EUCs, which are in the rural areas of the Iringa and Morogoro regions in Tanzania. The study was based on quantitative data collected using survey questionnaire from a random sample of 459 and 296 businesses in the EUCs in Ilula and Madizini, respectively. Qualitative data were collected using interview guides from 38 key informants and six focus group discussions. Data processing and descriptive and multivariate analyses were done using Microsoft Excel, SPSS, and STATA software. Organisation and analysis of social network data was done using Gephi software, while content analysis was empployed to analyse qualitative information using NVIVO software. The findings of this study showed that Ilula and Madizini EUCs are key market centres for dominant agricultural produce, mainly tomato and paddy/rice from the surrounding near and distant villages. A large proportion of the agricultural produce was traded to regional and international markets, which are also market nodes for industrial goods from other urban areas to surrounding rural areas. About 60 % of all businesses belong to the trading category (mostly unspecialised). Many of these businesses are involved in crop- trading and wholesale/retail. Service based businesses, manufacturing and transportation were seen to develop alongside major crop value-chain businesses. Opportunities created through the development of crops and other business linkages have attracted many migrants from the surrounding rural areas and other parts of the country. Migrants own about 75 % of the surveyed businesses. The product and information exchange structure in Ilula and Madizini business networks was centralised to few businesses within the trading category, mainly tomato and paddy/rice traders and wholesale/retail. Majority of businesses were not networked in the general EUC business network, mainly due to a lack of network relations with businesses within the value chain of dominant crops (tomatoes and paddy). Similar businesses also acted as brokers of products and information, both horizontally across businesses within the EUC and vertically across businesses outside the EUCs. This guaranteed networked businesses access to better and quality products and information. Business development in the EUCs was enhanced by increasing the size and influence of social network, which positively impacted business stock and sales turnovers because extensive social networks were also linked with highly influential businesses. Business investment decisions in the EUCs and the types of businesses were influenced by business owners’ strong ties of family, relatives, and friendship networks and weak ties of business acquaintances/colleagues. These networks were particularly influential in food crop trading, transportation, and wholesale and retail business investment, most of which were directly linked to the tomato and paddy value chains. However, the relevance of strong ties in influencing investment decisions decreased as business owner human and financial capital improved. Lack of formal institutional arrangements was identified to constrain networking and inform business investment decisions. In terms of employment creation, most businesses in Ilula (66 %) and Madizini (62 %) were run by owners without employing any extra labour. However, they created more employment opportunities indirectly through the services they demanded, like storage, transportation, security, renting shop space and cullies (loading and unloading). Indirect employment was created mostly around businesses with stronger/high network linkages. Large proportion of this employment was created by businesses operating in close connection with major tomato and paddy crop value-chains, such as trading, manufacturing, wholesale/retail and construction. Strong and weak social networks played a significant role in businesses recruitment in Ilula and Madizini EUCs. The likelihood of employment creation increased when social networks’ size and influence increased among Madizini and Ilula businesses. However, the increasing influence of social networks among Madizini businesses reduced the prospects of creating employment opportunities. The result is connected to the earlier observation that many businesses were not networked in the general EUC business value chain, which is exacerbated by a lack of business-crop effect where paddy/rice and sugarcane value chains as key crops in Madizini were narrow and poorly integrated into EUC web of doing business. Thus, from the two cases, EUCs were revealed to be focal centres of business investment in Tanzania as they facilitate rural-urban linkages through trade of goods and services to and from rural and urban areas. Social networks were further revealed to play a significant role in influencing business development, informing investment decisions, recruiting labour, and creating employment opportunities. This is because access to market information, labour, and capital relied mainly on social networks. The likelihood of developing a business and creating more employment was also determined by increasing the scope (size and influence) of one’s social network, mainly around dominant crop value chains. Therefore, as informal sector is still dorminant in rural areas, social networks are instrumental in realising rural development as they enable business development by assuring access to capital, market information, goods, and labour. Given the role of EUCs in supporting business development, it calls for government and private sector action in prioritising EUCs as trade and value addition centres that will benefit majority rural populations. Moreover, dedicated public and private sector support on the development of crop value chains around EUCs is called for to support subsequent business and rural development, investment, and creation of employment potentials for growing rural population.
Effects of avocado farming on livelihoods and biodiversity: perspectives of smallholder farmers in Hai and Rungwe Districts, Tanzania
(Scientific Research Publishing Inc., 2023-11-30) Boniphace John; Kadigi Reuben M. J.; Kangile Joseph R.
Agriculture production has long been regarded as an important sector for so- cial and economic progress in most developing countries. However, it is also increasingly viewed as posing threats to biodiversity and the environment at large, hence the need for striking a balance between the two goals (economic progress and biodiversity conservation) through the adoption of environ- mentally friendly and healthy farming practices. In this paper, we use the case of avocado production in the Hai and Rungwe districts of Tanzania to inves- tigate the opinions of smallholder farmers about the effects of avocado pro- duction on livelihoods and biodiversity. Specifically, we use the Likert’s scale method to analyse and compare the opinions. The study findings show that smallholder producers had positive perceptions about the effects of avocado production on livelihoods and biodiversity. They viewed avocado farming as the most profitable business compared to other agricultural commodities. The effects of avocado on livelihoods were highly rated ranging from the lowest mean rank of 4.008 for the livelihood and market supports, to the highest of 4.3271, out of 5, for the livelihood protection threshold indicators. There were significant inter-district differences in opinions about the effects of avocado farming on biodiversity, especially for “water” ( p = 0.002) and “fauna” indicators ( p = 0.001) in which the Rungwe district registered rela- tively larger values than the Hai district. The paper underscores the need for the government and other development partners to support smallholder far- mers so that they are enabled to produce high-value, and environmentally friendly avocados for the export market.
The impact of rural, financing on the performance of small and medium enterprises: a case of Mufindi community bank
(Sokoine University of Agriculture, 2007) Godwin, Godfrey
The importance of small and medium enterprises sector has necessitated to the great emphasis on small and medium enterprises financing for the development of the sector. However, with the current small and medium finance institution in Tanzania, there is no sufficient documentation of the extent and strength of small and medium enterprises performance as a result of accessing credit from MFIs. The study thus aimed at evaluating the performance of SMEs a result of provision of credit from MuCoBa in Mufindi. Primary data were collected using questionnaires from selected samples of 45 small and medium respondents. Borrowers and institution respondent were interviewed f. Secondary data were collected from the university of Sokoine libraries and MuCoBa. Descriptive statistic (means, percentages, frequencies) were major tools employed in data analysis. Small and medium enterprises financing was confirmed to play a vital role in boosting sales revenues, Enterprises with access to credit employed significantly more laborers than those without credit. Many borrowers respondent (68.9 %) reported to acquire more assets than non borrowers (13.3 %). Also micro enterprises with credit have higher ability to meet their basic needs and other household’s expenses like paying school fees, meeting medical etc. Hence, SMEs financing has a major role for starting and sustainable growth of profitable enterprises for the development of SME sector. The study recommended that proper measures such as creation of favorable environment for SME sector, conducting of feasibility study to SMEs before issuing credit to SMEs, extending credit for business start up, provision of grace period to SMEs after Ioan disbursement, extension of repayment period, provision of entrepreneurship skills and business training for SMEs operators and increasing the size of the base loan.
Agricultural policy analysis studies in Tanzania: a historical and thematic perspective with implications on future policy research for crop production and marketing
(Tanzania Journal of Agricultural Sciences, 2016) Isinika, A. C.; Mibavu, G. M.; VanSickle, J. J.
This paper reviews studies which have addressed agricultural policy research in relation to Tanzania during and after economic structural adjustment, with some cross reference for studies within Africa and globally. The studies are reviewed to cover: factor markets; product markets; and macro-economic management in relation to impacts on agriculture performance. The review establishes that in the factor markets more studies have been done to address productivity improving inputs, especially inorganic fertilizer compared to other inputs such as financing and credit for agriculture. Based on the findings, further areas for future research are proposed. Five sub-themes are presented: subsidy, returns to investment, land markets, trade, and inter-sectoral linkages. The study concludes by observing that despite all the studies, there is little evidence that policymaking in Tanzania is informed by policy research. Alternatively stated, policy makers do not seek guidance from research to make decisions. The review also establishes that most of local researchers use analytical methods which have limited capacity to provide robust policy recommendations that are backed by clear analytical rigour. Capacity building of young professionals is therefore recommended to improve their competence to become agricultural policy analysts with impact on agricultural policy processes.
Consumer preferences for quality characteristics along the cowpea value chain in Nigeria, Ghana and Mali
(Wiley InterScience, 2009) Mishili, Fulgence Joseph; Fulton, Joan; Shehu, Musa; Kushwaha, Saket; Marfo, Kofi; Jamal, Mustafa; Kergna, Alpha; Lowenberg-DeBoer, J.
The production and trade of cowpea is a growing business in West Africa. But a better understanding of consumer preferences is essential to market development. The objective of the study was to determine the impact of cowpea grain quality characteristics on market price. The data for the study were collected from markets in Nigeria, Ghana, and Mali. Hedonic pricing methods provide a statistical estimate of premiums and discounts. The results indicated that cowpea consumers in Ghana, Mali, and Nigeria are willing to pay a premium for large cowpea grains. Bruchid damage is not statistically significant in any market. The impact of price on other cowpea quality characteristics such as skin color and texture and eye color vary locally. Implications for development of the cowpea value chain are as follows: (a) researchers should identify cost-effective ways to increase cowpea grain size because larger grain are preferred and (b) serving local markets requires a portfolio of grain skin and eye color and skin texture combinations. [EconLit citations: Q130]. r 2009 Wiley Periodicals, Inc.
Factors influencing land allocation decisions to food crops - trees production in Mufindi, Tanzania:A fractional multinomial logit approach (fmnl)
(Tanzania Journal of Agricultural Sciences, 2023) Ng’elenge, H; Damas, P
Understanding of factors influencing land allocation decisions to food crops - trees production is vital for improving the welfare gain from land allocation decisions smallholder farmers make. This article aimed to investigate the determinants of land allocation decisions by smallholder farmers between food crops - tree production in selected villages in the Mufindi District in Tanzania. The study adopted a cross-sectional research design approach to collect data. The target population was 4896 farm households, from which a total of 413 households were randomly selected to constitute a sample size from which primary data were collected. Data from this study were analyzed quantitatively using the fractional Multinomial Logit model (FMNL). Variables included in FMNL were sex, age, education, household size, labor, and land size, access to market information, and awareness to land use policy. Major findings show that sex, household size, land size, awareness of land use policy, access to market information, and labor were influencing land allocation decisions more to tree farming than food crops. The study suggests that the government should create awareness among farmers through educational programs on, land use policy and market information, labor and land use allocation for improved farmers’ welfare.
Economic viability of system of rice intensification (sri) technology in Morogoro, region, Tanzania
(Tanzania Journal of Agricultural Sciences, 2023) Mkubya, R.W; Damas, P; Mahoo, H.F
The objective of this study is to analyze the benefits and costs of the system of rice intensification in the Morogoro Region, Tanzania. The cost-benefit analysis theory was used in this study. Data were collected by using a questionnaire and checklists after a preliminary survey that aimed at familiarizing the researcher with the study area and pre-test the questionnaire to gauge the relevance of the questions and their comprehensiveness. The study adopted a multistage sampling method. The sample size of 384 farmers was randomly selected. The viability of each production method (SRI and Conventional) was estimated using the Cost-Benefit Analysis. Overall, the results of the comparison of economic viability between SRI and Conventional method projects indicated that the former (SRI) was more profitable and viable than the latter (Conventional Method) at discount rates (Interest rates) equal to or less than 12% respectively. In terms of both NPVs and BCRs interest rates often decrease, making borrowing money less expensive. However, the increase in NPV revealed that the System of Rice Intensification was more profitable than the conventional method of rice production. The sensitivity analyses, of the NPVs for the SRI and Conventional Method projects, respectively, were negative at discount rates of more than 54.17749% and 32.10396%, indicating that the projects were not financially feasible at rates higher than these, but when measured in terms of IRR, SRI outperformed the conventional technique. In general, the empirical findings showed that the System of Rice Intensification produces rice at a higher profit than the conventional method. Therefore, it is important to encourage rice farmers to use the system of Rice Intensification
Editorial: achieving nutrition security in Tanzania by improving production, education and economics: methods, tools and applications
(Frontiers, 2022-09-20) Hoffmann, Harry Konrad; Kinabo, Joyce Ludovick; Sieber, Stefan; Stuetz, Wolfgang; Bonatti, Michelle; Mbwana, Hadijah Ally; Uckert, Götz Bernhard; Matavel, Custodio Efraim; Hafner, Johannes Michael; Löhr, Katharina; Rybak, Constance
Globally, the number of people unable to afford a healthy diet rose by 112 million to almost 3.1 billion, reflecting the impacts of rising consumer food prices during the pandemic (1). In this context, food security and nutrition is increasingly highlighted as a priority among both scientists (2) and political decision makers (3). On the African continent, this topic is of particular importance as the number of individuals affected by undernourishment remained on a high level throughout the 2010s, and since 2019 are again rising (Figure 1)– the war in Ukraine will most likely cause even greater problems (4). In 2021, hunger affected 278 million people in Africa. Situated in one of the globally most affected regions, achieving food security and nutrition is already a substantial challenge in Tanzania, with the Food and Agriculture Organization (FAO) (5) reporting that, between 2014 and 2020, the overall prevalence of moderate or severe food insecurity in the total population has affected roughly 55-56% of the overall population. However, these already severe numbers do not display the food security situation in 2022 adequately because the devastating effects of the Covid-19 pandemic (6) and the subsequent spikes in global food prices since the 24th of February 2022 are not included. The latter is especially worrying as more than 65% of imported wheat in Tanzania derives from Russia (ca. 50%) or Ukraine (ca. 15%) (7). Furthermore, prices for agricultural inputs, like fertilizers and pesticides, are also increasing significantly, given that these are mainly imported from Russia. The knock-on effects will likewise worsen the food security situation in the near future. Thus, the topic of this special issue is even more important than it was when it was launched, especially as Tanzania is likely to be among the 10 largest countries globally in 2100 (8) and, simultaneously, climate change will hit East Africa (9) including Tanzania (10) particularly hard. The included set of papers aim to address the overall challenge of food insecurity from different disciplinary angles and on different analytical levels, thus holistically displaying the magnitude of the problem and showcasing potential pathways for solving some aspects of the crisis.
Total economic values of tourist hunting blocks in Tanzania
(BT International, 2023) Kadigi, Reuben M. J.; Nkuwi, Imani R.; Ligate, Fredrick A.; Kija, Hamza; Musamba, Emmanuel B.
This chapter is based on the findings of a study that was conducted in 12 tourist hunting blocks (HBs) in Tanzania. The aim of the study was to evaluate the total economic values (TEV) of the HBs to inform the decision of auctioning to potential hunting companies and sustainable utilization and conservation of the blocks. For each of the 12 HBs, the study estimated the TEV and its five individual components namely; the direct use values (DUV), indirect use values (IUV), option/quasi-option values (OV), existence values, as well as, the bequest values (BV). The values were estimated using the Analytic Multicriteria Valuation Method (AMUVAM). The TEV and its components were estimated using a time horizon of 10 years (the mean tenure for a winning hunting company). The results show that the average TEV of HBs was USD 93,981,422 with the minimum and maximum TEV amounting to USD 6,215,588 to USD 653,470,695 per hunting block respectively. Of the five components of TEV, the bequest values (BV) constituted the largest proportion (about 50% of TEV), followed by the existence values (EV) (19%), option/quasi-option values (OV) (12%), and indirect use values (IUV) (10%). The direct use values or DUV (i.e. the values of hunting and photographic tourism) constituted only 1% of TEV. The EV of HBs ranged from USD 632,210 to the maximum of USD 125,147,285 and the average was USD 17,625,305. The cultural heritage values (CHV) constituted the largest component of EV (about 50%), followed by the aesthetic enjoyment values (AEV) (27%), and biodiversity conservation values (BDV) (23%). The study emphasises the importance of using a thorough understanding of human values to inform decisions about how to devote ecosystems, like HBs, to both direct and indirect purposes. We also advocate enhancing the skills of the personnel responsible for managing and allocating the use of these ecosystems so they can conduct economic assessments of ecosystems using both basic and sophisticated analytical tools, such as geographic information systems (GIS), relational databases, and globally accessible websites-based tools like InVEST (Integrated Valuation of Environmental Services and Tradeoffs), ARIES (Artificial Intelligence for Ecosystem Services), and Costing Nature.
Mapping value chains for nutrient-dense foods in Tanzania
(Institute of Development Studies, 2014-06) Temu, Anna; Waized, Betty; Ndyetabula, Daniel; Robinson, Ewan; Humphrey, John; Henson, Spencer
This report details the findings of an analysis of value chains for several nutrient-dense foods in Tanzania. It rapidly assesses the potential of ten commodities to contribute to reducing undernutrition and identifies three with particularly high potential. It then systematically examines issues at the various stages of these value chains, in order to identify barriers that inhibit the extent to which the product is likely to mitigate micronutrient undernutrition. The report recommends options for development agencies, governments, public–private partnerships and other development actors seeking to strengthen the linkage between agricultural activities and nutrition outcomes. It is accompanied by two other reports on Tanzania: a case study of a particular food processing business and an analysis of policy options. Chronic undernutrition is a critical problem in Tanzania, with alarmingly high rates of stunting and micronutrient deficiencies leading to cumulative losses of US$3.7bn over five years according to one estimate. Particular problems include low consumption of iron-rich foods by women, poor infant feeding practices and widespread use of inadequate complementary foods. Food-based approaches, especially those that deliver key micronutrients to the ‘1,000 days group’, appear to have a key role in reducing rates of undernutrition in the country. An expert stakeholders’ workshop was convened to rapidly review experiences with ten commodities considered to have potential for nutrition. Of these, three were chosen for more in-depth study: cowpea, orange-fleshed sweet potato (OFSP) and complementary foods. The report provides an overview of these three value chains. Considerable numbers of businesses, especially small enterprises, are involved, particularly at the stages of food processing and retail. The report maps the value chains for these focal products, concentrating on whether they meet five key criteria necessary for foods to be able to mitigate micronutrient undernutrition: availability, affordability, acceptability, nutritional quality, and effective signalling of this quality to purchasers. The report then examines issues at each stage of the value chains for the focal products: production, storage/transport, processing and distribution/retail. It identifies key barriers facing these foods and assesses a set of potential responses to the barriers. The main findings are as follows: Cowpeas are primarily a subsistence crop, although in some areas they are sold and eaten as a protein source or snack food. Cowpeas have the advantage of being a very low-cost source of protein, iron and folates. Further, there is potential to leverage consumers’ familiarity with other types of pulses to increase consumption. Yet important barriers remain: demand is low and the crop is still not widespread in commercial markets. It has largely been neglected by public agricultural support programmes. Cowpea is also highly susceptible to post-harvest losses; traders use dangerous chemicals to prevent pest damage, but this creates health risks for consumers. To address these problems, interventions can seek to promote the use of low-cost and safe storage techniques. Social marketing campaigns can also increase awareness of the benefits of eating cowpeas and create greater consumer demand. Support can also be provided to foster business models that deliver new, nutrient- dense cowpea foods to a wide group of consumers. Orange-fleshed sweet potato (OFSP) is exceptionally rich in vitamin A and can be produced at low cost in many regions of Tanzania. It is well suited for use as a complementary food for young children. However, at present, both producers and consumers prefer white-fleshed varieties of sweet potato – which contain few micronutrients – to the orange varieties. Furthermore, markets for OFSP are poorly developed and availability is low. Several donor-funded initiatives have aimed to increase production of improved varieties of OFSP, but they have not addressed marketing and demand issues. Future interventions should support new products in order to make OFSP appeal to consumer tastes, while social 4marketing should be used to increase consumer awareness and to encourage traders to promote and market OFSP to their customers. Finally, supporting processors to scale up new products could make OFSP more acceptable to urban consumers. The orange colour of OFSP tubers is a key advantage for this crop: it allows consumers to easily distinguish it from white varieties, creating a potential for businesses to specialise in OFSP. The key to strengthening OFSP is to increase consumer demand through social marketing and by working with traders and retailers. Complementary food products. Complementary foods made from mixes of cereals and legumes already have a positive impact on nutrition in Tanzania. There is robust demand and a large number of enterprises involved in making these products. However, many do not contain sufficient nutrients to support infant growth and development, and products can be contaminated with pathogens or aflatoxins. Meanwhile larger firms’ products are not affordable for poor consumers. Interventions need to address market constraints so that businesses can sell safe and nutritionally adequate products at an affordable price. Policy actors can choose from a number of approaches; in-depth assessments will be needed to evaluate the risks and benefits of each. If policymakers aim to introduce quality controls in the complementary food market, they will need to organise the small enterprises into clusters so that it is easier to engage with and monitor them. This could be accompanied by a voluntary certification system that would distinguish nutritionally adequate products from those that are not. However, experience in Tanzania and elsewhere indicates that both of these interventions require substantial resources and long-term support, as well as entailing considerable uncertainty. Alternative options include procurement and distribution funded by donors or government, which can circumvent some of the key constraints faced by private markets while also targeting the most vulnerable groups. Public distribution, however, requires long-term funding commitments. A final option is to use behaviour change communications to promote home fortification using locally available ingredients. This strategy may be lower risk but does not address supply constraints. Finally, the report highlights a set of overarching constraints that inhibit markets for nutrient- dense foods more broadly. These issues include low public nutrition awareness and demand, the difficulty of distributing to poor populations, the absence of mechanisms to signal nutritional quality, and the cost of working with value chains made up of small and medium enterprises (SMEs). These challenges, and policy options for addressing them, are examined in more detail in the accompanying policy report.
Promoting biofortified crops for nutrition: lessons from orange-fleshed sweet potato (OFSP) in Tanzania
(Institute of Development Studies, 2015-04) Waized, Betty; Ndyetabula, Daniel; Temu, Anna; Robinson, Ewan; Henson, Spencer
This case study examines the outcomes of interventions in Tanzania that have promoted the production and consumption of orange-fleshed sweet potato (OFSP) – a biofortified crop – with the objective of reducing vitamin A deficiencies. The report contributes to policy efforts to promote nutrition-sensitive agriculture by providing lessons for the introduction of biofortified crops in Tanzania and elsewhere. The case study is particularly instructive because OFSP has been a flagship of biofortification efforts, and because Tanzania appeared to have high potential for uptake of the crop. The country is a major producer of sweet potato, although the vast majority of production is of the nutrient-poor white-fleshed varieties (WFSP). Sweet potato is an important food security crop for small farming households, particularly in Tanzania’s Lake Zone. The crop has the advantage of requiring little land and few inputs, and can be stored on-farm for several months. The crop also has commercial value, and white-fleshed varieties are available in urban markets throughout the year. Donor-funded initiatives have played a central role in developing all stages of the OFSP value chain, with a particular focus on breeding new varieties that appeal to the preferences of both producers and consumers. Development projects have also supported the dissemination of planting materials and funded public awareness campaigns. However, information collected for this case study suggests that, so far, interventions have not achieved widespread uptake of OFSP. Only a small minority of farming households in intervention districts grow OFSP. Commercial farmers who supplied OFSP planting materials to project distribution systems have found that, after project funding ended, the local market was not viable, and have ceased production. Meanwhile, awareness of and demand for the crop among consumers have been very limited; one survey conducted in an intervention district found that only 2 per cent of households consumed OFSP. Traders and food processors report that there is little demand, and dealing with the crop is not profitable. This state is perhaps unsurprising given that the introduction of OFSP is still relatively recent, that project efforts have been relatively scattered and uncoordinated, and that there has been little focus on commercially viable value chains. Yet the challenges encountered in Tanzania provide important lessons for other agriculture-nutrition initiatives. A first lesson is that the successful introduction of a biofortified crop requires the development of support systems at different stages of the value chain, including seed, marketing and quality assurance systems. In the case of OFSP, interventions should design publicly funded distribution of planting materials in order to foster parallel commercial systems at the same time. Whether commercial systems will provide access for vulnerable rural households requires further assessment; there may be a need for ongoing targeted subsidy. A second lesson is that achieving uptake of a nutrient-rich crop may depend on building viable value chains and demand, even if the aim is to encourage consumption by vulnerable households. One reason farmers have not invested in OFSP is that – faced with food insecurity and capital constraints – they prefer crops that can both be used as food or sold for cash. Agriculture-nutrition interventions should develop a more nuanced analysis of the decision-making context facing farming households. Third, the absence of demand is perhaps the key barrier preventing value chain development for OFSP. Yet, without rigorous research on consumer preferences and willingness-to-pay, it is unclear how this situation can be addressed. Funding more detailed consumer studies is therefore an immediate priority. Finally, the case of OFSP highlights the importance of mechanisms that signal nutritional quality to consumers. The distinctive colour of OFSP tubers is a major advantage; it enables the consumer to identify nutritional benefits and aids efforts to market the crop. In contrast, processed products that incorporate OFSP, such as ‘golden bread’, lack this advantage; the orange colour can be easily faked using food additives. This can undermine consumer confidence. If market-based interventions are to generate consumer trust, they must either 3concentrate on crops and foods with a clear signalling advantage, or put in place specific mechanisms to ensure the nutritional quality of end-products. This report concludes that publicly funded programmes need to build commercial opportunities for OFSP if the crop is to achieve widespread uptake and contribute to reductions in vitamin A deficiencies. This will require more strategic and better-coordinated support from donor agencies, government and their partners. Private sector actors will play a key role, but are unlikely to invest until supportive conditions are put in place. Future interventions should aim to create this supportive environment, including by incentivising production of planting materials, developing commercially viable products and funding large- scale public awareness campaigns. Public sector actors need to assess whether commercial planting materials and processed products can be made affordable and accessible to poor and vulnerable populations; delivering nutrient-rich foods to these groups is likely to require some form of public subsidy. This case study suggests that two intervention pathways should be explored simultaneously: (1) public distribution/purchasing and purchasing programmes to deliver planting materials and/or OFSP tubers to the rural poor, and (2) demand creation through awareness and social marketing campaigns, along with product development. Building robust value chains for biofortified crops requires collective efforts from both public and private sector actors. Donors, national government and non-governmental organisations (NGOs) can play a key role in catalysing investment through appropriate public purchasing, increasing public awareness and addressing barriers to acceptability.
Impacts of prices and transactions costs on input usage in a liberalizing economy: evidence from Tanzanian coffee growers
(2004-06-15) Winter-Nelson, Alex; Temu, Anna
Despite improvements in production incentives, agricultural output in Africa remained sluggish through the 1990s. Low use of purchased inputs may be part of the cause of persistently low productivity in African agriculture. This article analyzes the roles of relative prices and transactions costs in explaining low use of chemical inputs among Tanzanian coffee growers. A sample selection model indicates that output prices exert great influence on input purchases and that both fixed and variable transactions costs affect input use decisions. Travel costs in input and output markets have distinct effects on input usage, implying distinct avenues for interventions to promote more intensive use of agricultural inputs.
Market liberalisation, vertical integration and price behaviour in Tanzania’s coffee auction
(Blackwell Publishers, 2001) Temu, Anna A.; Winter-Nelson, Alex; Garcia, Philip
Whether market liberalisation can promote agricultural development in Africa depends on how well existing institutions can facilitate trade by private agents. This article assesses the performance of the Tanzania coffee marketing system after liberalisation and the emergence of private, vertically integrated exporters (VIEs). Increasing producer prices, declining marketing margins, and the continued provision of a useful auction for coffee that is delivered by traders who are not VIEs all suggest a degree of success for liberalisation. The presence of VIEs seems to have provided investment to reduce marketing costs, whilst a sufficient number of competing firms has limited non-competitive behaviour in the market for coffee that is traded at the auction by non-VIEs.
Economic viability of improved fodder production in Iringa region: comparative cost – benefit analysis of different on-farm treatments
(Eastern and Southern Africa Journal of Agricultural Economics and Development, 2022-06) Mbwaga, A. I.; Mgeni, C. P.; Kadigi, R. M. J.
Inadequate fodder production and availability has been a challenge to the livestock farmers in Tanzania. This study assessed the economic viability of fodder production using on-farm treatments at ASAS farm in Iringa region. A Completely Randomized Design was employed to arrange 24 sub-plots (six treatments and four replications) in plots of 10m x 10m dimension making a 100m 2 which is equivalent to 0.025 acres. Sub-plots were spaced each at 0.5m apart from the adjacent plot by a 1m wide path around the plot’s boundaries receiving different treatments of fertilizer. The total area for Rhodes’s grass (Chloris gayana) study was 2835m 2 . The seeds were sown in each plot and fertilizers were applied in Treatment two -Cattle Farm Yard Manure (T2-CFYM), T3 (CFYM)+Nitrogen, Phosphorus, Sulphur, and Zinc (NPSZn), T4 (NPSZn), T5 (NPSZn)+Sulphate of Ammonium (SA) and T6 (NPSZn + Urea) while T1 remained as a control (no fertilizer). Through Microsoft Excel, Cost-Benefit Analysis was done to assess the economic viability of each treatment. The study findings revealed that Treatment 3 and Treatment 6 of the experiments yielded positive Net Present Values (NPVs) of TZS 346 601.3 and TZS 1 324 442; Benefit Cost Ratios (BCRs) of 1.46 and 1.72; and Internal Rates of Return (IRR) of 15% and 16%, respectively. It is concluded that the application of T3 and T6 to the Rhodes grass would improve fodder profitability. It is recommended that with the experiment, large and smallholder farmers may produce enough fodder for themselves and surplus for sale to other livestock keepers.

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