Testicular Biometry, Spermigram, and Biochemical Parameters in Male Goats

THE STUDY is designed to monitor how both the age and body weight of clinically healthy male goats would be related to testicular biometry, semen attributes, and biochemical profiles. Thirty male goats (Crossbreed) aged between 2.5 and 4 years with body weight 41.2 +/- 0.83 kg (mean +/- SEM) were included. The morphometry of the testes and scrota of all males were measured and blood plasma samples were harvested for further analysis. The results showed that there was a strong positive correlation between the body weight of the male goats and testicular measurements; while there was a negative correlation between the body weight and scrotal length measurement. Moreover, positive correlations were found between the body weight and most of the semen parameters except semen pH, a negative correlation was found. Strong positive correlations between the age of the male goats and most of the testicular measurements were recorded. The semen volume and sperm motility were positively correlated with age, while the semen pH was negatively correlated. Moreover, semen volume, spermatozoa motility, viability, and concentration were positively correlated to testicular and scrotal measurements. In contrast, semen pH and primary abnormalities of the spermatozoa were negatively correlated with testicular and scrotal measurements. The levels of testosterone and glucose, globin, and total protein were found to be negatively correlated with spermatozoa abnormalities. In conclusion, besides the clinical findings, the scrotal and testicular measurements and biochemical analysis could be a good mirror for monitoring breeding soundness evaluation and early diagnosis of subfertile male goats