Endocrine and spermatogenic testicular function. 9. Correlations between plasma testosterone and morphometric parameters of the testis in boars of different ages]

Close, statistically fully secured correlations were found to exist in boars, aged between four and four-a-half as well as seven and nine months, between the testosterone content in the blood of the V. spermatica interna, on the one hand, and morphometric parameters essential to quantitative sperm production, on the other (testicular volume, volume of germinativum, overall length of tubules, diameter of tubules, and cell density of the germinal epithelium).