- Turkish Journal of Veterinary and Animal Sciences
- Volume:24 Issue:6
- Effects of the Levels of Astaxanthin in the Diet on the Flesh Pigmentation of Rainbow Trout
Effects of the Levels of Astaxanthin in the Diet on the Flesh Pigmentation of Rainbow Trout
Authors : Muammer ERDEM, Sebahattin ERGÜN
Pages : 577-583
View : 9 | Download : 5
Publication Date : 0000-00-00
Article Type : Research Paper
Abstract :A feeding trial was conducted to study the effects of dietary astaxanthin concentration on muscle pigmentation of rainbow trout insert ignore into journalissuearticles values( Oncorhynchus mykiss); with a mean initial weight of 270 g fed diets supplemented with astaxanthin in diet concentrations of 60 insert ignore into journalissuearticles values(group II); and 90 mg/kg insert ignore into journalissuearticles values(group III); for 35 days. A control insert ignore into journalissuearticles values(I); group received a diet without astaxanthin. At the end of the experiment, the trout showed average body weight increases of 250.660g, 261.675 g and 234.410 g, and the flesh reached a level of 0.695 mg/kg, 10.539 mg/kg and 11.954 mg carotenoid/kg in groups I, II and III, respectively insert ignore into journalissuearticles values(initially, 0.595 mg/kg);. Fish pigmentation increased with increasing dietary carotenoid concentration. But the retention coefficients decreased as the pigment dose in the diet increased.Keywords : Rainbow trout Oncorhynchus mykiss, , pigmentation, astaxanthin