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Fish Silage as Replacement of Fishmeal in Red Tilapia Feeds

Madage, S. S. K. and Medis, W. U. D. and Sultanbawa, Y. (2015) Fish Silage as Replacement of Fishmeal in Red Tilapia Feeds. Journal of Applied Aquaculture, 27 (2). pp. 95-106. ISSN 1045-4438

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Article Link(s): http://dx.doi.org/10.1080/10454438.2015.1005483

Abstract

We estimated the effect on growth and nutrient efficiency of replacing fishmeal with silage incorporated with rice bran in diets for fingerling red tilapia (Oreochromis mossambicus × Oreochromis niloticus × Oreochromis aureus) over 12 weeks. Isonitrogenous (300 g kg−1 protein dry matter basis) and isoenergetic (4450 Kcal gross energy kg−1) feed formulations with increasing levels of tilapia silage as a replacement for fishmeal were prepared: Diet 1 with no silage (0 g Kg−1), Diet 2 (250 g Kg−1), Diet 3 (500 g Kg−1), and Diet 4 (750 g Kg−1). Feed intake was similar among Diets 1, 2, and 3, while Diet 4 had a significantly lower intake. There was no significant difference (P > 0.05) in weight gain or specific growth rate (SGR), feed conversion ratio (FCR), and protein efficiency ratio (PER), among fish fed Diets 1, 2, and 3. Fish fed with Diet 4 had significantly lower weight gain; SGR and PER and significantly higher FCR. Organoleptic properties of the fish were not affected by the diets. The results of this study indicate that less expensive dried fish silage with rice bran is an alternative protein source for tilapia feed up to 50% of fishmeal replacement.

Item Type:Article
Business groups:Crop and Food Science
Subjects:Aquaculture and Fisheries > Aquaculture > Fish culture
Aquaculture and Fisheries > Aquaculture > Feeding
Deposited On:28 Jan 2016 04:39
Last Modified:28 Jan 2016 04:39

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