Use of Poultry By-product and Plant Protein Sources in Diets of Redclaw (Cherax quadricarinatus)
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Date
2022
Journal Title
Journal ISSN
Volume Title
Publisher
Central Fisheries Research Inst
Access Rights
info:eu-repo/semantics/openAccess
Abstract
A total of 300 juvenile crayfish (13.0 +/- 0.03 g) were randomly distributed among 5 dietary groups (n=60, 3 replicates) held within 15 x 500 L-1 fiberglass tanks connected to a recirculation system (RAS), at 20 crayfish per tank. Each group was fed for 12 weeks one of five experimental diets where the main protein sources were: 1) control, fish-meal-based diet (FM, 48% of the diet); 2) 10% FM + 52.5% poultry by-product meal (PoM); 3) 34.5% soybean meal + 34.5% corn gluten meal (Pmix); 4) 34.5% PoM + 32.soybean/corn gluten meal mix (PoM/Pmix); and 5) 10% FM + 27.5% soybean + 27.5% corn gluten meal (FM/Pmix). The results demonstrated that there were no significant differences among diets in terms of growth and feed utilization efficiency. Muscle amino acid profile of redclaw crayfish fed the FM diet had the highest level of total essential amino acids, followed by FM/PMix, Pmix, PoM/Pmix, and PoM diets. Particularly, in all experimental groups, the highest essential amino acids (EAA) were lysine, arginine, and leucine. Based on these findings, we conclude that redclaw can perform well with FM-free vegetable diets and PoM-based diets although more research is needed into the total composition of EAA and FA in muscle.
Description
Keywords
Poultry meal, Fish meal, Alternative sources, Fatty acid profile, Essential amino acid index
Journal or Series
Turkish Journal of Fisheries and Aquatic Sciences
WoS Q Value
Q3
Scopus Q Value
Q2
Volume
22
Issue
8
