02352naa a2200361 a 450000100080000000500110000800800410001910000270006024501000008726000090018752013240019665000170152065000180153765000100155565000110156565000100157665000170158665000150160365300260161865300230164465300220166765300140168965300240170365300260172770000210175370000230177470000170179770000230181470000240183770000170186170000220187877300900190020442712017-12-29       2016    bl uuuu     u00u1 u    #d1 aRODRIGUES, R. T. G. A.  aInfluence os scrotal bipartition on spermatogenesis yield and sertoli cell efficiency in sheep.  c2016  aWith the objective to assess the effect of scrotal bipartition on spermatogenesis in sheep, the testes were used from 12 crossbred rams of sheep farms in the municipality of Patos, Paraíba, Brazil, distributed into two groups: GI with six rams with scrotal bipartition, and GII with six rams without scrotal bipartition. The testicular biometry was measured and the testes were collected, fixed in Bouin and fragments were processed to obtain histological slides. The spermatogenesis yield and the Sertoli cell efficiency was estimated by counting the cells of the spermatogenetic line at stage one of the seminiferous epithelium cycle and the Sertoli cells. The results were submitted to analysis of variance with the ASSISTAT v.7.6 program and the mean values were compared by the Student-Newman-Keuls test (SNK) at 5% significance. The testicular biometric parameters did not show statistical difference (p&gt0.05) between the groups. The meiotic, spermatogenetic and Sertoli cell efficiency were higher in bipartitioned rams (p&lt0.05), while the mitotic yield did not differ (p&gt0.05) between GI and GII. The results indicated that there is superiority in the spermatogenetic parameters of bi-partitioned rams, suggesting that these sheep present, as reported in goats, indication of better reproductive indices.  aReproduction  aSertoli cells  aSheep  aTestes  aOvino  aReprodução  aTestículo  aBipartição escrotal  aCélula de Sertoli  aEspermatogêneses  aMofologia  aScrotal bipartition  aSpermatogenesis yield1 aSANTOS, J. R. S.1 aAZERÊDO, L. M. S.1 aROCHA, E. F.1 aCARVALHO, M. A. M.1 aPORTAL, M. J. I. D.1 aSOUSA, O. B.1 aMENEZES, D. J. A.  tPesquisa Veterinária Brasileira, Rio de Janeirogv. 36, n. 4, p. 258-262, abr. 2016.