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Turkish Journal of Fisheries and Aquatic Sciences 2022, Vol 22, Num, 8     (Pages: TRJFAS21188)
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Use of Poultry By-product and Plant Protein Sources in Diets of Redclaw Crayfish (Cherax quadricarinatus)

Orhan Tufan Eroldoğan 1 ,Mabrouk Elsabagh 2 ,Hüseyin Sevgili 3 ,Brett Glencross 4 ,Marina Paolucci 5 ,Metin Kumlu 1 ,Enes Kınay 1 ,Ece Evliyaoğlu 1 ,Hatice Asuman Yılmaz 1 ,Merve Sarıipek 6

1 Çukurova University, Faculty of Fisheries, Department of Aquaculture, 01330, Adana, Turkey
2 Niğde Ömer Halisdemir University, Faculty of Agricultural Sciences and Technologies, Department of Animal Production and Technologies, 51240, Niğde, Turkey
3 Isparta University of Applied Sciences, Faculty of Fisheries, Department of Aquaculture, Isparta, Turkey
4 University of Stirling, Institute of Aquaculture, Stirling FK9 4LA, United Kingdom
5 University of Sannio, Department of Science and Technologies, 82100 Benevento, Italy
6 Sinop University, Faculty of Fisheries, Department of Aquaculture, 57000 Sinop, Turkey DOI : 10.4194/TRJFAS21188 Viewed : 2025 - Downloaded : 1678 A total of 300 juvenile crayfish (13.0±0.03 g) were randomly distributed among 5 dietary groups (n=60, 3 replicates) held within 15×500 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. Keywords : Poultry meal Fish meal Alternative sources Fatty acid profile Essential amino acid index