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STUDY OF TESTIS HISTOLOGICAL CHARACTERISTICS AS INDICATORS FOR REPRODUCTIVE EFFICIENCY IN LOCAL BARRED AND BROWN ROOSTERS AND ACCLIMATIZED WHITE LEGHORN AND NEWHAMPSHIRE* | ||
| iraqi poultry sciences journal | ||
| Article 1, Volume 1, Issue 1, 2006, Pages 112-119 | ||
| Author | ||
| Al-Hassani and Wail jalal Al-Ezei | ||
| Abstract | ||
| Fourty eight roosters (12 birds in each group) , 24 weeks old were reared for 6 months to study the histological characteristics of testis and evaluation the reproductive efficiency in Barred (BA) and Brown (Br) local and acclimatized White Leghorn (WL) and Newhampshire (NH) roosters . Birds were placed into individual cages (41×41×45 cm) inside room . All routine management was done and the samples were taken at the end of study . Results revealed a significant (p<0.001) superiority of relative testes weight , seminiferous diameter and epithelial height in BA compared with WL and NH . A significant (p<0.001) increase in volume density (%) of spermatocytes in BA comparing with NH and Br , whereas NH exhibited a significant (p<0.05) increase in sertoli cells comparing with WL and Br. No significant differences were noticed in relative weight of most testis components , except with spermatocytes , spermatides , total spermatocytes and sertoli cells , which were most of them in favor of in local chickens . It can be concluded that the local chickens exhibited a superiority on acclimatized birds in testis histological characteristics which have a positive correlation with reproductive efficiency . | ||
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