Effect of Using Biogen as a Feed Additive on Productive and Reproductive Performance of Rabbits

This study was conducted to evaluate the effect of using biogen in V-line rabbit diets on its productive and reproductive performance. Twenty eight rabbits (16 does of 10 months' age averaged 3325 ± 122 g and 12 bucks of 11 months' age averaged 3440 ± 268 g live body weight were randomly assigned to four groups and fed ad libitum as follows: T1; Basal diet (Control), T2, T3 and T4: Basal diet plus 0.5, 0.75 and 1 g biogen/Kg diet, respectively. Results showed that doe's in T3 and T4 gave better results for number of services per conception, litter size at weaning, litter weight, bunny weight and daily gain at birth and weaning. Mortality rate generally decreased than the control (T1) and T2. Parturition interval non-significantly decreased, with the lowest period being recorded for T2. Total feed intake/parity showed significant (P