Published in Scientific Works. Series C. Veterinary Medicine, Vol. LXIX, Issue 2
Written by Diana ȘIPOTEANU, Mădălina CIOARIC, Ivona ZĂBAVĂ, Emilia CIOBOTARU-PÎRVU, Nicolae DOJANĂ
The paper presents the effects of long-term dietary supplementation with vitamin A and vitamin E on the testicle and epididymis morphology in roosters. The roosters were fed on diets enriched in vitamin A (600 IU/kg of diet) and/or vitamin E (60 IU/kg of diet) from 40 to 57 weeks of age. Histology and morphometry studies were performed on the testicle and on epididymis duct of the experimentally fed rooster. A better preservation of the seminiferous epithelium, refinement of seminiferous pericanalicular connective tissue, small islands of Leydig cells as well as the relative maintenance of the richness of the seminiferous pericanalicular blood vasculature are noted for vitamin supplemented groups versus control. Both vitamins diminished the ageing effects on the thickness and structure of the epididymis epithelium. Both vitamins prolonged the maintenance of Sertoli cell density (P ˂ 0.01 versus control). The lumen epididymis fluid contains smaller amount of detached cytoplasmic fragments, cilia, and nuclei versus control. Vitamin A mainly protects the spermatogenesis line, while vitamin E mainly protects Sertoli and Leydig cells. No mutual inhibition or potentiating effects of the two vitamins were revealed.
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