Evaluation of differences in feed utilization for exotic and local chickens in Tanzania

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dc.contributor.authorMohammed, Fatima Gubrel Ali
dc.date.accessioned2023-08-07T08:11:30Z
dc.date.available2023-08-07T08:11:30Z
dc.date.issued2011
dc.descriptionThesisen_US
dc.description.abstractThe study was carried out to compare the growth and food utilization attributes of broiler and local chickens. Two experimental diets were formulated to provide a low and high plane of nutrition based on the crude protein and metabolizable energy contents of the diets. Birds were weighed at the beginning and end of the experiment. Feeds given and refused were weighed daily to determine the feed intake (FI). recorded on individual-bird basis. Feeds were given in amounts that would allow for at least 15% refusal per bird per day. Daily dry matter intake (DDMI) was calculated as the difference between food offered and food refused, and the cumulative dry matter intake (CDMI) was calculated at the end of the experiment. Samples of the diets were taken and bulked daily for both dry matter and nitrogen content determination. A parallel set of adult birds (X broiler and Y Local) were used for digestibility studies, during which birds were placed in individual battery cages. The results showed that there were significant differences (P > 0.05) between the broiler and the local chickens in Weight gain (466.6*33.2 vs. 138.1*33.23); Daily rate of gain (35.9*25.0 vs. 10.6*25.1); Daily DMI (118.4*1.8 vs. 47.6*1.81) and Feed- Efficiency (30.3*1.01 vs. 22.3*1.1). HE-HP diet produced birds with higher weights. than LE-LP. Birds on HE-HP consumed significantly more protein and nitrogen than those on LE-LP and CP digestibility was higher for birds on HE-HP. Birds on LE-LP had a higher N retention ratio than those on HE-HP. It was concluded that commercial broilers were better performers under both feeding regimes. Where good quality feed is not a constraint, keeping the commercial strain appears to be a better option than raising local chickens.en_US
dc.identifier.urihttp://www.suaire.sua.ac.tz/handle/123456789/5542
dc.language.isoenen_US
dc.publisherSokoine University of Agricultureen_US
dc.subjectFeed utilizationen_US
dc.subjectExotic and local chickensen_US
dc.subjectTanzaniaen_US
dc.titleEvaluation of differences in feed utilization for exotic and local chickens in Tanzaniaen_US
dc.typeThesisen_US

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