EFFECTS OF GOSSYPOL ON MICROMETRY OF TESTES OF TEDDY MALE GOATS

Idrees Ali Zahid, L. A. Lo,dhi^l, Najib-ur-Rehrnan^l and M. S. Akhtar²

Research Institute for Physiology of Animal Reproduction, Bhunikey (Pottoki), Distt. Kasur
^IDepartment of Animal Reproduction, University of Agriculture, Faisalabad;
²Department of Veterinary Physiology and Pharmacology, University of Agriculture, Faisalabad

Abstract   

    The effects of gossypol on micrometry of testes of Teddy male goats were studied. Nine Teddy male goats were randomly divided into three equal groups named A, Band c. Animals in group A were fed control ration (without gossypol), animals in group B were fed ration which contained un boiled cottonseed cakes (free and bound gossypol contents), while those in group C were given ration containing boiled cottonseed cakes (bound gossypol only). These experimental rations were fed to animals of respective groups for a period of 90 days. At the termination of experimental period, the right testis of each male goat was removed surgically. Histological sections from these testes were examined and the micrometric characteristics of testes were recorded. The mean values for total diameter (µ), lumen diameter (µ), wall thickness (µ), spermatogenesis cell layers (Nos.) of somniferous tubules and Leydig cell diameter (µ) of right testicle of Teddy male goats in group A were 71.24 ± 0.52, 63.03 ± 0.94, 8.21 ± 1.85,6.63 ± 0.08 and 31.88 ± 0.58, respectively. The corresponding figures for the male goats in group B were 74.13 ± 0.52, 66.89 ± 0.94,7.24 ± 1.85, 4.86 ± 0.08 and 31.02 ± 0.58, while in group C these values were 72.32 ± 0.52, 64.45 ± 0.94, 7.87 ± 1.85, 5.32 ± 0.08 and 31.40 ± 0.58, respectively. Statistical analysis revealed a significant (P<0.05) increase in the total diameter and .1umen diameter and a significant (P<0.05) decrease in wall thickness of somniferous tubules in male goats fed diet containing un boiled cottonseed cakes compared with those in control group. Feed containing boiled cottonseed cakes did not affect these parameters significantly. The number of spermatogenesis cell layers was also significantly (P<0.05) lower in the testes of male goats fed un boiled cottonseed cakes compared with those of controls and non-significantly lower compared with those fed boiled cottonseed cakes indicating a disruption in spermatogenesis. The Leydig cell diameter, however, was not affected.