ABSTRACT

The nutrition and feeding of freshwater fishes have achieved significant advances in the world today regarding the zootechnical performance of aquatic organisms as a whole. To sustain aquaculture, research has been focused on the nutrition and aquafeed production in recent years using alternative protein sources. As a primary protein source in aquafeeds especially for carnivorous fishes like murrels, fish meal (FM) has been used as an excellent source of proteins, lipids, essential amino acids, vitamins, etc. There is a need to develop balanced feeds with a lower monetary cost for the food of striped snakehead murrel, Channa striata (Bloch 1793) [4] which do not cause zootechnical and environmental damage and still maintain animal health. This will help the technical and economic viability of the commercial culture of this species. This work aimed to seek feed formulations capable of providing a reduction in the monetary cost of balanced diets for the culture of Channa striata, by decreasing the level of inclusion of salmon flour in food mixtures with an improved nutritional profile. Results indicated that in basal diets with 51.4% salmon flour and 16.1% soybean meal, the maximum substitutions beyond this level, without compromising the performance of the feeds, were achieved by supplementing synthetic amino acids in food mixtures with improved nutritional profile. This nutritional approach showed that diets with soybean meal inclusion reduce 17.9% of the cost of formulating the feed which could be feasible for adoption by local feed industries. Keywords: Channa striata, synthetic amino acids, salmon flour, soybean meal, food mixtures
Publication date: 01/11/2020

https://ijbpas.com/pdf/2020/November/MS_IJBPAS_2020_5496.pdf

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https://doi.org/10.31032/IJBPAS/2020/9.11.5496