Effects of Compound Supplementation of Purslane,Citric Acid and Glucose Oxidase on Growth Performance,Slaughter Performance,Immune and Antioxidant Functions of Meat Rabbits
This experiment was conducted to investigate the effects of compound supplementation of purslane,citric acid and glucose oxidase on growth performance,slaughter performance and immune and antioxidant functions of meat rabbits.A total of 200 healthy 35-day-old weaned Ila commercial meat rabbits(half male and half female)were randomly divided into 4 groups according to body weight and sex with 50 replicates per group and 1 rabbit per replicate.The rabbits in the control group were fed a basal diet,those in experimental group 1 were fed the basal diet supplemented with 3％purslane instead of the same amount of bran,and the others in experimental groups 2 and 3 were fed the diets supplemented with 1％citric acid and 1％citric acid+200 mg/kg glucose oxidase on the basis of the diet in experimental group 1,respectively.The pre-trial period lasted for 7 days and the experimental period lasted for 35 days.The results showed as follows:1)compared with the control group,the final body weight of meat rabbits in experimental groups 2 and 3 was significantly increased(P＜0.05),the mortality rate was significantly decreased(P＜0.05),and the diarrhea frequency had a decreasing trend(0.05＜P＜0.10);the average daily gain and average daily feed intake of meat rabbits in ex-perimental group 2 were significantly increased(P＜0.05);the ratio of feed to gain and average daily feed in-take of meat rabbits in experimental group 3 were significantly lower than those in experimental groups 1 and 2(P＜0.05).2)Compared with the control group,the semi-eviscerated slaughtering percentage of meat rabbits in three experimental groups was significantly increased(P＜0.05),and the eviscerated slaughtering percentage of meat rabbits in experimental groups 1 and 2 was significantly increased(P＜0.05).3)Compared with the control group,the serum immunoglobulin G content of meat rabbits in three experimental groups was signifi-cantly increased(P＜0.05),the serum interleukin-1β content of meat rabbits in experimental groups 1 and 2 was significantly decreased(P＜0.05),and the serum interleukin-6(IL-6)content of meat rabbits in experi-mental groups 2 and 3 was significantly decreased(P＜0.05);the thymus index of meat rabbits in experimental group 3 was significantly higher than that in experimental group 1(P＜0.05),while the serum IL-6 content in experimental group 3 was significantly lower than that in experimental group 1(P＜0.05).4)There were no significant differences in liver antioxidant indices among all groups(P＞0.05).In conclusion,the compound supplementation of purslane,citric acid and glucose oxidase can improve growth performance and slaughter performance of meat rabbits,improve body immunity,and reduce mortality and diarrhea frequency.[Chinese Journal of Animal Nutrition,2024,36(3):1857-1866]
purslanecitric acidglucose oxidasemeat rabbitsgrowth performanceslaughter perform-anceimmune functionantioxidant function
万方数据
维普
