Testicular development and hematological parameters of male broiler breeders under subtropical environment. | [Pakistan Journal of Zoology • 2011]

Author(s):

1. Asif Hussain: Department of Pathology, University of Agriculture,Faisalabad,Pakistan

2. Muhammad Zargham Khan: Department of Pathology, University of Agriculture,Faisalabad,Pakistan

3. Ahrar Khan: Department of Pathology, University of Agriculture,Faisalabad,Pakistan

4. Muhammad Kashif Saleemi: Department of Pathology, University of Agriculture,Faisalabad,Pakistan

5. Ijaz Javed: Department of Physiology and Pharmacology, University of Agriculture,Faisalabad,Pakistan

Abstract:

Testicular development of male broiler breeders were studied under different environmental temperatures. A total of 48 broiler breeder males of 18 weeks of age were procured from a company. Birds were divided in 3 equal groups (A, B and C). Birds of groups A were kept at 22 to 26°C in an environmentally controlled house and groups B and C were kept at 28 to 33 and 30 to 37°C, respectively in open sided naturally ventilated houses. Duration of the experiment was 8 weeks. Panting was observed in birds of groups C and B. Water consumption of group C was significantly higher compared to groups A and B. Body temperature of group C remained significantly higher in comparison to other two groups throughout the experiment. Erythrocyte counts, hemoglobin concentration and hematocrit were significantly higher in group A compared to group C. Testes weight, volume and comb area were significantly higher in group A. Histologically, many birds in group B did not have spermatozoa in the seminiferous tubules and necrotic cells were present along with round spermatids. In group C all the cells of spermatogenesis were present only in one bird, whereas spermatocytes and/or spermatids were seen in other birds.

Page(s): 1033-1040

DOI: DOI not available

Published: Journal: Pakistan Journal of Zoology, Volume: 43, Issue: 6, Year: 2011

Keywords:

histopathology of testes

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