基于菌株22A的复合益生菌剂对鹿苑鸡机体性能的影响  

Effects of Compound Probiotics Based on Strain 22A on the Body Performance of Luyuan Broilers

作　　者：高荣 王晨 高佳玉 沙纪蕾 尹震东 张一平 沙峰 张贤 杨治风 GAO Rong;WANG Chen;GAO Jiayu;SHA Jilei;YIN Zhendong;ZHANG Yiping;SHA Feng;ZHANG Xian;YANG Zhifeng(School of Biology and Food Engineering,Changshu Institute of Technology,Changshu 215500;Zhangjiagang Livestock and Poultry Co.,Ltd.,Zhangjiagang 215622;Zhangjiagang Animal Husbandry and Veterinary Station,Zhangjiagang 215699,China)

机构地区：[1]常熟理工学院生物与食品工程学院,江苏常熟215500 [2]张家港市畜禽有限公司,江苏张家港215622 [3]张家港市畜牧兽医站,江苏张家港215699

出　　处：《常熟理工学院学报》2022年第2期38-43,共6页Journal of Changshu Institute of Technology

基　　金：2019年度张家港市科技支撑计划(农业)项目“基于新型益生菌株22A的鸡复合益生菌剂关键技术应用研究”(ZKN1901);2020年江苏省省级校企合作基金项目“基于新型益生菌株22A的鸡复合益生菌剂关键技术应用研究”(202010333083H)。

摘　　要：以基于菌株22A的复合益生菌剂为饲料添加剂,以1日龄健康鹿苑鸡为对象,以平均采食量、平均日均重、料重比、屠宰率、营养代谢率、血清生化和免疫性能等为指标,探讨复合益生菌剂对鹿苑鸡生长代谢性能和屠宰性能的影响.结果表明:在日粮中添加复合益生菌剂使14,28和42日龄的鹿苑鸡平均日采食量分别提高了1.3,14和11.2 g,平均日增重提高了3.4,19.8和21.7 g,料重比降至1.71,1.47和1.68.鹿苑鸡的全净膛率、胸肌率和腿肌率分别提高了0.43%,1.12%和1.17%.鹿苑鸡的干物质、粗蛋白、粗脂肪和钙的营养代谢率分别提高了2%,8.5%,13.87%和15.2%.鹿苑鸡血液中的IgG和IgA分别提高了1.59和0.3 g/L.研究结果表明基于菌株22A的复合益生菌剂可以增强鹿苑鸡的生长性能、屠宰性能和免疫性能.This paper investigated the effects of the compound probiotics based on strain 22A’s cerevisiae and Bacillus subtilis as a feed additive on the growth performance,the slaughter performance and the immune responses of 1-day-old healthy Luyuan broilers through measuring average daily feed intake (ADFI),average daily weight gain (ADWG),feed-to-weight ratio,slaughter rate,metabolic rate,serum biochemistry and immune responses.The results showed that after 14,28 and 42 days feeding,the ADFI of Luyuan broilers was increased by1.3,14 and 11.2 g,respectively;the ADWG was increased by 3.4,19.8 and 21.7 g,respectively.The feed-to-weight ratio was decreased to 1.71,1.47 and 1.68,respectively.As indicators of the slaughter performance,the evisceration rate,the pectoral muscle mass and leg muscle mass of 42-day-old broilers were increased by 0.43%,1.12% and 1.17%,respectively.The metabolic rate of dry matter,crude protein,crude fat,and calcium of 35-day-old broilers was increased by 2%,8.5%,13.87% and 15.2%,respectively.Moreover,the concentration of blood IgG and IgA of 42-day-old broilers was increased by 1.59 g/L and 0.3 g/L,respectively.In conclusion,the results showed that the compound probiotics based on strain 22A could enhance the growth performance,the slaughter performance and the immune responses of Luyuan broilers.

关 键 词：鹿苑鸡 复合益生菌剂 生长性能 免疫性能 屠宰性能 

分 类 号：Q939.92[生物学—微生物学]