Fatty acid, fat‐soluble vitamin and sterol contents in testis and semen, testis‐somatic index and spermatologic values of broodstock rainbow trout ( Oncorhynchus mykiss ) fed with different levels of omega‐3 fatty acids under regular stripping conditions

Autor: Kenan Köprücü, Sinan Özcan
Rok vydání: 2019
Předmět:
Zdroj: Aquaculture Research. 50:2477-2485
ISSN: 1365-2109
1355-557X
DOI: 10.1111/are.14201
Popis: In this study, the testis and semen fatty acid, fat‐soluble vitamin and sterol levels, testis‐somatic index and spermatological values were investigated in the broodstock rainbow trout fed with the different levels of omega‐3 polyunsaturated fatty acid (PUFA) under the regular stripping conditions. For this purpose, a control and three test diets were prepared. The control, D1, D2 and D3 diets were contained the omega‐3 PUFA at 3.14%, 7.84%, 13.63% and 20.54% as a percentage of the total fatty acids respectively. The fish in the experimental groups were fed with these diets for 60 days. The testis‐somatic index (3.81–4.50), semen volume (9.30–18.5 ml) and pH (8.05–8.99), initial sperm motility (68.1%–93.7%), duration of 50% sperm motility (141.3–258.9 s), total duration of sperm motility (268.7–489.6 s) and sperm density (9.95–17.5 cells × 10⁹ ml⁻¹) values of the fish fed the control diet were significantly decrease (p 0.05), followed by the fish fed the D1 diet (p
Databáze: OpenAIRE