兔球虫重组蛋白卵黄抗体与功能性添加剂配套应用效果研究  

Study on the Application Effects of Rabbit Coccidiosis Recombinant Protein Yolk Antibody Combined with Functional Additives

作　　者：任永军[1,2] 袁定胜 杨泽晓[3] 邝良德 郭志强[1,2] 雷岷[1,2] 谢晓红 REN Yongjun;YUAN Dingsheng;YANG Zexiao;KUANG Liangde;GUO Zhiqiang;LEI Min;XIE Xiaohong(Sichuan Animal Science Academy,Chengdu 610066;Animal Breeding and Genetics key Laboratory of Sichuan Province,Chengdu 610066;College of Veterinary Medicine,Sichuan Agricultural University,Chengdu 6111303)

机构地区：[1]四川省畜牧科学研究院,成都610066 [2]动物遗传育种四川省重点实验室,成都610066 [3]四川农业大学动物医学院,成都611303

出　　处：《中国养兔》2024年第3期14-18,共5页Chinese Journal of Rabbit Farming

基　　金：兔病毒性出血症二价口服疫苗技术成果引进与示范推广(2023ZHYZ0006);兔球虫重组蛋白卵黄抗体技术成果引进与示范推广(2022ZHYZ0003);十四五育种攻关项目:优质肉兔配套系选育(2021YFYZ0033);财政专项:肉兔配套系培育及地方遗传资源的保护利用研究(SASA2023CZYX004)。

摘　　要：选用体重相近的35日龄断奶新西兰肉兔250只,随机分成5个组,分别为对照组、试验1、2、3、4组,对照组添加Es-gap、Em-gm、Ei-ama卵黄抗体(各占1/3)1 g/kg,试验1、2、3组在添加上述3种复合卵黄抗体1 g/kg的基础上添加山华素0.5 g/kg、丁酸梭菌0.2 g/kg、苯甲酸2 g/kg,试验4组添加复合卵黄抗体1 g/kg、山华素0.5 g/kg、丁酸梭菌0.2 g/kg、苯甲酸2 g/kg,每组设5个重复,每个重复10只,分别饲喂对应日粮,并于42日龄人工感染攻虫。试验结果显示,试验4组在平均日增重、日采食量、成活率方面均显著高于其他组别(P<0.05),饲料报酬显著低于其他组别(P<0.05);ACI值判定标准为:对照组、试验1、2、3组均具有良好抗球虫效果,试验4组具有优秀的抗球虫效果。结论:Es-gap、Em-gm、Ei-ama复合卵黄抗体与山华素、丁酸梭菌、苯甲酸组合配套应用,可显著提高幼兔生产性能、卵囊减少数,ACI值判断标准为优秀的抗球虫效果。In this study,250 35-day-old weaned New Zealand meat rabbits with similar body weight were randomly divided into 5 groups:control group,experimental group 1,2,3 and 4.The control group was supplemented with Es-gap,Em-gm and Ei-ama yolk antibody(each accounts for one-third) 1 g/kg.Groups 1,2 and 3 were supplemented with Shanhuasu 0.5 g/kg,Clostridium butyricum 0.2 g/kg and benzoic acid 2 g/kg on the basis of the above three kinds of compound yolk antibody 1g/kg,and group 4 were supplemented with compound yolk antibody 1 g/kg,Shanhuasu 0.5 g/kg,Clostridium butyricum 0.2 g/kg and benzoate 2 g/kg.There were 5 replicates in each group and 10 rats in each replicate,and 42 days of age of artificial infected insect attack.The results showed that the average daily gain,daily feed intake and survival rate of group 4 were significantly higher than those of other groups(P < 0.05),and the ratio of feed to meat was significantly lower than that of other groups(P < 0.05).The criteria of ACI value were as follows:the control group,test groups 1,2 and 3 had good anticoccidial effect,and the test group 4 had excellent anticoccidial effect.Conclusion:the combination of Es-gap,Em-gm and Ei-ama yolk antibody combined with Shanhuasu,Clostridium butyrate and benzoic acid can significantly improve the production performance and reduce the number of oocysts in young rabbits.ACI value judgment standard for its excellent ball insect resistant effect.

关 键 词：兔球虫 重组蛋白 卵黄抗体 功能性添加剂 

分 类 号：S829.1[农业科学—畜牧学]