To reveal the effects of N-carbamylglutamic(NCG)on growth performance,blood pa-rameters and meat quality of meat rabbits,192 Hyla rabbits at 35 days of age were assigned to four groups randomly with 0.00％,0.05％,0.10％,and 0.20％NCG added to the basal diet,with six replicates of eight rabbits in each group and one replicate of eight rabbits.The results indicated that:compared to the control group,the body weight of the 0.20％NCG group at d 35(P＜0.01),the BW at d 14 and the average daily gain(ADG)from d 1 to 14 in the 0.05％NCG group(P＜0.05)were significantly elevated;the ADG of the control group from d 1 to 35 was significantly lower than the 0.10％and 0.20％NCG groups(P＜0.05).The levels of total superoxide dismutase(T-SOD)in the 0.10％NCG group(P＜0.01),total antioxidant capacity(T-AOC)and urea nitro-gen(BUN)in the 0.20％NCG group(P＜0.05)were significantly higher compared to the control group;the levels of T-SOD in the 0.10％NCG group were significantly elevated compared to the 0.05％NCG group(P＜0.05).NCG significantly increased polyunsaturated fatty acids(PUFA)and PUFA/SFA(P＜0.05).The cooked meat rate of the longissimus lumborum in the 0.20％NCG group was significantly increased compared to the control group(P＜0.01),while the water holding rate of the longissimus lumborum increased significantly in the 0.10％NCG groups(P＜0.01)and the control group(P＜0.05)and 0.05％NCG group(P＜0.05)than the 0.20％NCG group.NCG significantly reduced the crypts depth(P＜0.01)and had the tendency to in-crease the V/C value(P=0.067),while the villi height of jejunal in the 0.20％NCG group was significantly elevated compared to the control group(P＜0.05).In conclusion,NCG could promote the growth performance,enhance the antioxidant capacity,and improve the intestinal morphology and meat quality of meat rabbits.The appropriate amount of NCG added to meat rabbit diet is 0.10％.
维普
万方数据