The Effect of Fishmeal Source and Lipid Ratio on Growth and Nutrient Composition of Juvenile Turbot (Psetta maxima)

Authors : Fatma Burcu HARMANTEPE, Şevket BÜYÜKHATİPOĞLU

Pages : 24-36

View : 14 | Download : 18

Publication Date : 2023-06-30

Article Type : Research Paper

Abstract :The study investigated how the sources of fish meal and the amount of lipids in the diets of juvenile turbot insert ignore into journalissuearticles values(Psetta maxima); affected growth, feed utilization, body composition, and nutrient balance. The fish were fed with feed produced using two different fish meals for 50 days: white fish meal insert ignore into journalissuearticles values(WFM); from Alaska cod, Gadus chalcogrammus and brown fish meal insert ignore into journalissuearticles values(BFM); from Black Sea anchovy, Engraulis encrasicolus. The diets prepared as BFM-HL insert ignore into journalissuearticles values(Brown fish meal- high lipid);, BFM-LL insert ignore into journalissuearticles values(Brown fish meal- low lipid);, WFM-HL insert ignore into journalissuearticles values(Whitefish meal-high lipid);, WFM LL insert ignore into journalissuearticles values(Whitefish meal-low lipid); contained 53% protein and 10–14% lipid. Fish meal sources and lipid levels had a substantial insert ignore into journalissuearticles values(P< 0.05); impact on final weight, specific growth rate insert ignore into journalissuearticles values(SGR);, daily feed intake insert ignore into journalissuearticles values(FI);, feed conversion rate insert ignore into journalissuearticles values(FCR);, protein efficiency rate insert ignore into journalissuearticles values(PER);, nitrogen intake, gain, and loss, and lipid intake, gain, and retention. WFM-HL fed fish showed the best SGR, FCR, and PER results. When compared to the other diets, the WFM-HL diet\`s better protein utilization led to a considerably higher insert ignore into journalissuearticles values(P< 0.05); nitrogen retention. The fish-fed WFM-HL and BFM-HL diets had higher lipid retention values. Protein, lipid, and ash levels in the whole fish body were significantly insert ignore into journalissuearticles values(P< 0.05); influenced by the dietary fish meal source and lipid level. Compared to diets containing BFM, the results suggested that employing WFM in diet would be more promising in terms of higher growth performance and nutrient utilization. Also, with regard to experimental design, dietary lipid levels of 14% could result in greater growth than the diet containing 10% lipid, regardless of fish meal sources and levels.
Keywords : Fish meal, lipid level, nitrogen and lipid balance, protein quality, Psetta maxima