Comparative Study of Intensive and Extensive System of Rearing in Osmanbad Goats Fed Supplementary Feed Containing Different Sources of Energy

摘要

Twenty eight Osmanbad goats were divided into four groups of seven goats each. The T_1, T_2 and T_3 groups were stall fed with concentrate supplements (CS) containing similar protein and energy and branches of Acacia catechu as a sole source of roughage whereas T_4 group was maintained only on grazing without any supplementary feed. The maize, finger millet and fox millet as source of energy were included at 40% level in the CS-1, CS-2 and CS-3, respectively. The DMI in groups T_1, T_2 and T_3 was 347.9±23.7, 332.2±24.2, 350.1±25.5g/d respectively (P>0.05). The body weight gain in T_1, T2, T3 and T4 groups was 120.3±2.69, 108.5±4.05,124.4±4.02 and 48.6±3.96 g/d respectively and was influenced significantly (P>0.01) by treatment. The average monthly body score and heamoglobin (g%) level in groups T_1, T_2, T_3 and T_4 were 3.04±0.18 and 9.72±0.47; 3.08±0.19 and 9.78±0.63; 3.00±0.20 and 9.57±0.67; 2.61±0.07 and 8.50±0.11. There was no significant difference among the groups in body score but significant difference among the groups and between the months in haemoglobin level was observed. The results indicated that stall fed groups out performed than the grazing group regardless of energy source. Among groups which received CS with different energy sources, fox millet fed group gained significantly (P<0.01) more than the groups fed with maize and finger millet based CS.