dc.contributor.author | J Balirwa, E Ogello, A Otieno, A Musita | |
dc.date.accessioned | 2022-01-21T13:40:25Z | |
dc.date.available | 2022-01-21T13:40:25Z | |
dc.date.issued | 2021 | |
dc.identifier.uri | https://repository.maseno.ac.ke/handle/123456789/4477 | |
dc.description.abstract | Although net yield directly relates to actual production at harvest, feeding trials aimed at replacing
dietary fishmeal in cultured fish have largely ignored the performance indicator. A 16-week experiment
aimed at comparing Net Fish Yields in Nile tilapia fed on peanut-based meals as alternatives to dietary
fishmeal took place at Busoga University farmland in Eastern Uganda. Earthen ponds of size 4.0 x 3.0
x1.0 for length, width and depth respectively were used for culturing the experimental fish. Each of the
16 pond units were stocked at a density of 48 Nile tilapia fingerlings of initial live weight of 21.95 grams.
Iso-nitrogenous diets containing 30% and 25% Crude Protein (CP) for the first 12 and last four weeks
respectively, were used during the trial. Dietary treatments included the fishmeal (FM)-based diet and
two peanut-based diets. The latter consisted of peanut meal (PNM)-based diet and mixed plant meal
(MPM)-based diet in a ratio of 50:50. The commercial feed (CF) for grow-out Nile tilapia containing
25% CP acted as a control diet. NFYs of 5668 and 5624 kilograms per pond unit for Nile tilapia fed on
the MPM and FM-based diets respectively, showed no significant difference (p0.05). On the contrary,
NFY of 4819 kilograms characteristic to the PNM-based diet was the lowest and significantly poorer
(p<0.05) than the two test diets. Basing on the comparable NFYs, the MPM-based meal should substitute
the conventional fishmeal in the diet of pond cultured Nile tilapia. | en_US |
dc.publisher | International Journal of Fisheries and Aquatic Studies | en_US |
dc.subject | peanut-based meals, net fish yields | en_US |
dc.title | Comparison of net fish yields in pond cultured Nile tilapia (Oreochromis niloticus L.) fed on peanut-based meals as alternatives to dietary fishmeal | en_US |
dc.type | Article | en_US |