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Pakistan Journal of Biological Sciences

Year: 2005 | Volume: 8 | Issue: 11 | Page No.: 1561-1567
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Authors

M.A.S. Talukder

M.A.M.Y. Khandoker

M.G.M. Rahman

M.R. Islam

M.A.A. Khan

Keywords

The reproductive disorders are major causes of reduced fertility in cows that result in failure to produce or delay in producing the total annual calf crop. To identify the reproductive problems of dairy cows of Bangladesh Agriculture University (BAU) dairy farm initially different reproductive parameters in five genetic groups of cows were compiled in this study and 10 cows were identified as less performer. Jersey cross and Holstein Friesian cross were found as the less performer (30% reproductive disorder) followed by Sindhi and Sahiwal crossbred cows (20% reproductive disorder) and Red Chittagong was found as the best performer (0% reproductive disorder). The reproductive records of these 10 cows further taken into consideration and found to be anestrus. The cause of anestrus were further confirmed by rectal palpation and led to the anestrus due to unknown reason (20%) and ovarian abnormalities (80%). The ovarian abnormalities recorded to be as hypoplasia, deformed ovaries and cystic ovaries and their incidence percentages were 30, 20 and 30, respectively. For probable remedies related reproduction management were provided and the incidence (%) of improvement found in Jersey, Sindhi, Holstein Friesian and Sahiwal crossbreds cows were 66.7, 0.0, 33.3 and 100.0, respectively. It is concluded that Red Chittagong cows encountered least reproductive complains in BAU dairy farm. Moreover, Jersey and Holstein-Friesian crosses were found to be more susceptible to reproductive disorders than crosses of Sindhi and Sahiwal cows.
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