Abstract
To investigate the correlation of serum lipids with spermatogenic activity 10 male goats were distributed into three equal groups included one, two and three years of age and blood samples were collected from the jugular vein. The serum concentrations of total cholesterol and triglyceride were measured by method Enzymatic, serum levels of lipoproteins were determined by method Precipitation and serum levels of testosterone were measured by method Radio Immuno Assay. For histomorphometric study, the 5 µ sections were made and stained with Hematoxyline-Eosin. Data was statistically analyzed by the one way ANOVA and Pearson correlation tests (p≤0.05). Results showed that serum levels of total cholesterol, triglycerids, VLDL-c and LDL-c had not significant differences between different ages. The serum levels of HDL-c, testosterone, as well as the area of spermatic tubules and testicular interstitium, the diameter of seminiferous tubules, the germinal epithelium height, the number and diameters of the leydig cells; additionally, the number of spermatid cells had significant increase from one year group to two years group and also significant decrease from two years animals to three years group. The serum HDL-c values were significantly correlated with the number of leydig cells as well as serum levels of testosterone. Serum triglycerides values were also inversely correlated with germinal epithelium height. It can be concluded that increased serum levels of HDL-c and triglycerides have respectively a benefit and deleterious effects on the spermatogenic activity and histomorphometric structure of the testis in the male goats of Ilam province.
Keywords
Main Subjects
)