Sokoine University of Agriculture

Dietary effects of plant protein sources on the growth performance and feed utilization of Nile Tilapia, Oreochromis Niloticus, raised in concrete tanks

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dc.contributor.author Balindile, B. W.
dc.date.accessioned 2019-02-21T07:04:59Z
dc.date.available 2019-02-21T07:04:59Z
dc.date.issued 2018
dc.identifier.uri http://www.suaire.sua.ac.tz/handle/123456789/2754
dc.description MSc. Dissertation 2018 en_US
dc.description.abstract The study was conducted to evaluate practical diets for Nile tilapia Oreochromis niloticus composed of fishmeal, soybean meal, cotton seed cake meal and sunflower seed cake meal. Five isonitrogenous (30 g 100 g -1 ), isolipidic (10 g 100 g -1 ) and isoenergetic (18 kJ g -1 ) test diets were formulated. The control diet composed of fish meal (22%) and soybean meal (30%) as the major sources of protein. In the other test diets, fish meal was fixed at 5%, while inclusion of soybean meal, cotton seed cake meal and sunflower seed meal varied as follows; soybean meal 25 (SBM25), cotton seed cake meal 20 (CSM20), sunflower seed cake meal 20 (SFSM20) and blend diet (BLEND) contained CSM and SFSM were included at 10% and SBM at 5% respectively. A total of 120 fingerlings with an initial average weight of 13.96 ± 0.06 were stocked at a rate of eight fish per tank with a diameter of two meters and depth of one meter. Dietary treatments were in triplicates in complete randomized design. The experiment was conducted for six month and fish were weighed once a month to monitor growth and adjust feed ration. Data was analyzed using descriptive statistics and one way analysis of variance (ANOVA). There was significant difference in growth performance between control and other tested diets (p<0.05). Higher growth performance and feed utilization occurred in control diets followed by cotton seed cake meal, soybean meal, sunflower seed cake meal and finally blend diet. Cotton seed cake meal and sunflower seed cake meal diets were significantly more cost-effective than the control, BLEND and soybean meal diets (p<0.05). The study indicated that cotton seed cake meal could replace at least 20% as a protein source in the diet of Oreochromis niloticus without affecting growth performance and feed utilization under farmer managed condition. en_US
dc.language.iso en en_US
dc.publisher Sokoine University of Agriculture en_US
dc.subject Dietary effects en_US
dc.subject Plant protein sources en_US
dc.subject Feed utilization en_US
dc.subject Nile Tilapia en_US
dc.subject Oreochromis Niloticus en_US
dc.title Dietary effects of plant protein sources on the growth performance and feed utilization of Nile Tilapia, Oreochromis Niloticus, raised in concrete tanks en_US
dc.type Thesis en_US


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