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.
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)
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)。
关键词
鹿苑鸡
复合益生菌剂
生长性能
免疫性能
屠宰性能
Luyuan broiler
compound probiotics
growth performance
immune response
slaughter performance
