Effect of Concentrate Supplementation to Grazing on Growth and Reproductive Performance in Female Goats and Sheep

Research Article
Effect of Concentrate Supplementation to Grazing on Growth and Reproductive Performance in Female Goats and Sheep

F. Kabir, M. Shahjalal, G. Miah, M. J. Uddin and M. Z. Rahman

Journal of Biological Sciences, 2002, 2(5), 333-335.

Abstract

Supplemental effect of concentrate was studied on growth and reproductive performance in female goats and sheep under grazing condition. Six females each of goats and sheep aged about ten months and weighing on average, 12.6 and 11.7 kg respectively was used. The supplied concentrate supplement contained wheat bran, rice polish and soybean meal (50:40:10, 350 g/d). Animals of each species were blocked according to live weight and the blocked groups were assigned at random to two feeding regimes (with or without concentrate supplementation) in a 2×2 factorial experiment. Significantly higher (P<0.01) dry matter intake was observed in supplemented group than those of control group (grazing without concentrate) irrespective of animal species. Between sheep and goats significant (P<0.05 to P<0.01) difference was observed in DM intake and live weight gain. Kids birth weight was higher (0.71 vs. 0.55 kg) and gestation length was lower (142 vs. 145 d) in goats given the concentrate supplement than those of control goats. These results suggested that the effect of supplementing concentrate diet be benefited for the growth and reproductive performance of goats and sheep under grazing condition.

ASCI-ID: 38-532

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