Histological, Micrometrical and Histochemical Studies on the Testes of Large White Yorkshire Pig (Sus scrofa domesticus)

The study has been conducted on the testes of 10 adult Large White Yorkshire pig (1.5-2) years of age. The testis was surrounded by a capsule made up of dense irregular connective tissue comprising three layers viz., outer visceral layer of tunica vaginalis, middle tunica albugenia and inner tunica vasculosa. The connective tissue trabeculae were extended from the capsule and divided the parenchyma of the testis into number of lobules and consisted of collagen, elastic and reticular fibers along with rete testis and blood vessels. The Periodic Acid–Schiff shows strong affinity in basement membrane of seminiferous tubules and tunica albuginea with a moderate activity in Leydig cells. The Alcian blue shows strong affinity in basement membrane of seminiferous tubule and weak activity was observed in tunica albuginea and interstitial tissue. The different histomorphometrical parameters with regard to thickness of testicular capsule, diameter and height of seminiferous tubules were found to be higher in the left testicle.