Turkish Journal of Veterinary & Animal Sciences
DOI
-
Abstract
A feeding trial was conducted to study the effects of dietary astaxanthin concentration on muscle pigmentation of rainbow trout ( Oncorhynchus mykiss) with a mean initial weight of 270 g fed diets supplemented with astaxanthin in diet concentrations of 60 (group II) and 90 mg/kg (group III) for 35 days. A control (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 (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
First Page
577
Last Page
583
Recommended Citation
ERDEM, MUAMMER and ERGÜN, SEBAHATTİN (2000) "Effects of the Levels of Astaxanthin in the Diet on the Flesh Pigmentation of Rainbow Trout," Turkish Journal of Veterinary & Animal Sciences: Vol. 24: No. 6, Article 10. Available at: https://journals.tubitak.gov.tr/veterinary/vol24/iss6/10
