THE GROWTH PERFORMANCE OF BLACK BENGAL GOAT IN VILLAGE CONDITION

Abstract

Black Bengal goat is the heritage, pride and one of the potential genetic resources of Bangladesh. The study was conducted about the growth performance of Black Bengal goat in village condition at Savar Upazila under the Dhaka District from May/2017 to April/2018. Least-squares means for body weights at birth, 3, 6, 9 and 12 months of ages were 1.10, 5.02, 8.41, 10.41 and 12.42 kg, respectively. Sex of Black Bengal goat has highly significant (p<0.01) effect on the body weight at 3 months (5.22±0.04 and 4.77±0.04 kg) and 6 months of ages (8.74±0.04 and 7.96±0.04 kg) respectively for male and female. Moreover, sex has significant (p<0.05) effect on the body weight at 9 months (10.66±0.09 and 10.10±0.10 kg) and 12 months (12.88±0.06 and 11.82±0.07 kg) respectively male and female. Male was heavier body weight than female in all the ages. Type of birth has highly significant (p<0.01) effect on body weight at birth, 3, 6, 9 and 12 months. Single type (0.99±0.01kg) birth of kid weight was higher than twins (0.93±0.01 kg) and triplets (0.87±0.01 kg). First, second and third parity of dam has highly significant (p<0.01) body weight at 3 months (4.95±0.05, 5.04±0.04 and 5.08±0.05 kg) and 12 months (12.21±0.67, 12.39±0.08 and 12.67±0.07 kg) and significant (p<0.05) effect at birth weight (0.94±0.01, 0.95±0.01 and 0.97±0.01 kg) and 6 months body weight (8.29±0.06, 8.37±0.05 and 8.54±0.05 kg) respectively of all ages. Body weight is higher in third parity than first and second parity in all ages. Season has a highly significant (P<0.01) effect in birth weight (0.91±0.01, 0.99±0.01 and 0.97±0.01 kg), 3 months (4.87±0.04, 5.22±0.04 and 4.89±0.06 kg), 12 months (12.21±0.06, 12.65±0.07 and 12.30±0.10 kg) of ages respectively in winter, summer and rainy season. In winter, summer and rainy season has significant effect (P<0.05) at 6 months body weights (8.20±0.04, 8.63±0.05 and 8.23±0.07 kg) respectively. The growth performance better in summer season than rainy and winter season was observed in all ages. Thus it can be concluded that male type of sex, single type kid, third parity of dam and summer season was better.