Abstract
This study was planned to determine the relationship between semen quality parameters and the levels of biochemical constituents of seminal plasma of Teddy (Capra hircus) buck semen. For this purpose, semen ejaculates were collected from five mature healthy Teddy bucks. All the experimental bucks were kept under natural environmental conditions. Semen was collected twice in a week for the duration of 6weeks by Artificial Vagina (AV) in the breeding season (February-April). Two successive ejaculates of single buck were pooled at time of collection, and a total of 60 semen samples were processed for semen analysis. Sperm per cent motility, sperm concentration, dead sperm percentage, morphological abnormal spermatozoa, plasma membrane integrity were correlated with biochemical constituents of seminal plasma. The mean per cent motility (89.18%±0.37%), sperm concentration (1.86±0.04×109 /ml), dead sperm percentage (8.08%±0.29%), morphological abnormal spermatozoa (6.05%±0.29%) and plasma membrane integrity (88.22%±0.34%) were recorded. The seminal plasma contained Na+ (144.12±1.59mEq/L), K+ (27.38±0.49mEq/L), Cl- (65.73±0.45mEq/L), Ca++ (9.34±0.22mg/dl), P (19.32±0.97mg/dl), aspartate aminotransferase (AST; 26.48±1.30IU/L), alanine aminotransferase (ALT; 168.47±5.18IU/L), lactate dehydrogenase (LDH; 215.98±6.06IU/L), albumin (1.90±0.10g/dl), globulins (2.08±0.11g/dl) and total protein (3.98±0.20g/dl). The collected data were analysed by applying Pearson's correlation coefficients. Dead sperm percentage had negative correlation with sodium (r=-.278, p<.05), albumin (r=-.294, p<.05), globulin (r=-.266, p<.05) and total protein (r=-.295, p<.05). Phosphorus was negatively associated with sperm concentration (r=-.262, p<.05). AST was negatively correlated with plasma membrane integrity (r=-.292, p<.05). It was concluded that most of the semen quality parameters of Teddy bucks were positively correlated with biochemical constituents, but opposite trends were found in case of dead sperm percentage. The seminal biochemical constituents dynamically interact with each other.
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