Effect of supplementation of different levels of tea waste on the performance of growing calves |
J. Begum, A. Reza, M. R. Islam, M. M. Rahman, M. S. Zaman |
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Abstract |
Twelve indigenous(desi) growing male calves of 9-12 months of age(95.3 12.6 kg) were divided into 4 groups having 3 animals in each group. Each group of calves received 1 kg fresh concentrate mixtures where tea waste was supplemented as 0(T0), 50(T1), 100(T2) and 150(T3) g d-1 with the replacement of equal amount of concentrate mixtures. In addition, each calf received ad libitum chopped rice straw and 2 kg green grass a day. Dry matter intake increased by offering higher levels of tea waste except in the treatment T3. Daily gain(g d-1) was comparatively higher in T2 group(314.6g) compared to other treatments. Feed efficiency(kg DM kg-1 gain) was also higher in T2 group(9.9) where feed cost kg-1 gain was also comparatively lower(Tk. 25.7) than the other treatments. Dry matter and CP digestibility increased with the increase in supplementation of tea wastes except in the treatment T3. |
Keywords:
Supplementation; Tea waste; Performances; Desi Calves; Digestibility |
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