Reproductive Performance of Rabbits Fed on Diets Having Different Concentrate: Roughage Ratios

摘要

Twenty four does (Soviet Chinchilla x New Zealand white) of average 1.65±0.25 kg body weight were randomly distributed into four groups of six animals each. The animals in group T_1 were fed commercial pellet whereas in groups T_2, Tj and T_3 they were fed commercial pellet and fresh para grass in the ratio of 75: 25,55: 50 and 25: 75 on DM basis, respectively. Each doe was weighed at weekly interval from birth to 16 days post partum. The conception rates in T_2, T_3 and T_4 were 100,75 and 66.66%,respectively. The gestation length was similar in all the groups. Both litter weight at birth (228g) and at weaning (1173g) were highest in group T_2. The litter size at weaning was 5.00 in T_2 followed by T_4 (3.40) and T_1 (2.89). Average daily gain (g/d) ofkids was 6.99, 8.06, 8.64 and 8.13g in T_1, T_2, T_3 and T_4 respectively. The survival rate in this study ranged from 62.9 to 97.6%.