Comparative analysis of the biochemical parameters of the seminal plasma of Oncorhynchus mykiss and Salmo trutta fario in farm conditions in Kashmir Himalaya

Abstract

The aim of this research was to compare the biochemical parameters of seminal plasma of the rainbow trout (Oncorhynchus mykiss) and brown trout (Salmo trutta fario) cultured in Laribal trout fish farm, Dachigam, Kashmir. During the study period, seminal plasma of rainbow trout was found to contain 73.99±1.18 mg dl-1 glucose, 2.22±0.17 g dl-1 total protein, 15.65±0.84 mg dl-1 triglycerides, 3.07±0.27 mg dl-1 cholesterol and 30.87±0.65 mg dl-1 urea, whereas in brown trout seminal plasma had 82.27±0.52 mg dl-1 glucose, 1.35±0.11 g dl-1 total protein, 10.66±0.43 mg dl-1 triglyceride, 1.65±0.14 mg dl-1 cholesterol and 33.30±0.89 mg dl-1 urea. The results revealed that total protein, triglycerides and cholesterol were higher in rainbow trout than the farmed brown trout. On the contrary, concentration of glucose and urea were found higher in farmed brown trout. These findings give us an idea on the effect of environment on milt quality of the two species of trouts. The higher concentration of urea and glucose in the milt of brown trout is an implication of its lower productivity under farmed conditions in Kashmir as compared to rainbow trout.

Keywords: Biochemical parameters, Brown trout, Milt quality, Oncorhynchus mykiss, Raibow trout, Salmo trutta fario, Seminal plasma