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Pakistan Journal of Biological Sciences
Year: 2002  |  Volume: 5  |  Issue: 1  |  Page No.: 94 - 96

Heterosis on Productive and Reproductive Performance of Crossbreds from Jamunapuri and Black Bengal Goat Crosses

M. R. Zaman, M. Y. Ali, M. A. Islam and A. B. M. M. Islam    

Abstract: The experiment was carried out by crossing Jamunapuri male with Black Bengal female goat to assess the heterosis of productive and reproductive traits of F1 and F2. F1 and F2 for birth weight, live weight at 3, 6, 9 and 12 months of age, pre and post- weaning body weight gain, and litter size was significantly better than that of Black Bengal goat. However, F1 was found to be higher than that of F2. But pre-weaning survival rate was higher in Black Bengal goat than that of F1 and F2 crossbreds. Pre-weaning gain was higher than post-weaning gain in all populations. Heterosis of birth weight, live weight at 3,6,9 and 12 months of age, pre and post weaning gain, litter size and pre-weaning survival rates were 17.19, 23.35, 12.93, 7.44 and 5.71, 36.34, 31.87,15.38 and -4.82% for F1 and 8.60, 11.67, 6.46, 3.72, 2.86 and 18.17, 15.94, 7.69 and -2.41% for F2 respectively at location 1. But at location -2, heterosis of birth weight and pre-weaning survival rate were 24.79 and 16.54% for F1 and 12.40 and 8.27% for F2 respectively.

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