摘要
【目的】为了研究几种益生菌对柳州麻鸡体增重,畅道酶活和血清免疫指标的影响,比较几种益生菌的益生效果。【方法】将2000只5日龄柳州麻鸡分为8组,1组为对照组,即饮水中不加任何益生菌,其他7组为添加不同益生菌的试验组。在一定时间内,随机抓取20以上的小鸡称重,计算其体增重情况;试验期结束后,每组分别取10只柳州麻鸡颈静脉放血,收集血清用于检测免疫球舊白含量;处死解剖后,取十二指畅,空畅,回肠和盲畅内容物,检测脂肪酶酶活,淀粉酶酶活和舊白酶酶活。【结果】益生菌试验组对柳州麻鸡体增重具有良好的促进作用,其中,F1组和Kb组对麻鸡体重增加具有极显著差异(P<0.01);肠道酶活检测结果表明,不同益生菌对各肠段的脂肪酶,淀粉酶和蛋白酶酶活结果具有显著性差异(P<0.05);益生菌提高了血清免疫球蛋白A,G,M的含量(P<0.05)o【结论】益生菌可以提高柳州麻鸡的体增重,肠道酶活和免疫指标。本硏究为益生菌的实际应用提供敎据支持。
[Objective]To instigate the effects of several probiotics on the weight gain,intestinal enzyme activity and serum immune index of Liuzhou Ma chicken,the probiotic effects of several probiotics were compared.[Method]20005-day-old Liuzhou Ma chickens were divided into 8 groups,one group was the control that no probiotics were added to the drinking water,and the other seven groups were the experimental groups with different probiotics.In a certain period of time,randomly grab the chicks of 20 or more and weigh them to calculate the body weight gain;At the end of the trial period,10 Liuzhou Ma chickens were individually bled in each group,and serum was collected for the detection of immunoglobulin content;After the anatomy was performed,the contents of the duodenum,jejunum,ileum and cecum were taken,and lipase activity,amylase activity and protease activity were detected.[Result]The results showed that the probiotics test groups had a good promoting effect on the body weight gain of Liuzhou Ma chicken.Among them,the Fl group and the Kb group had extremely significant differences in weight gain(P<0.01);The results of intestinal enzyme activity tests showed that there were significant differences in lipase,amylase and protease activity between different probiotics(P<0.05);Probiotics can increase serum immunoglobulin A,G,M content(P<0.05).【Conclusion】Probiotics can increase body weight gain,intestinal enzyme activity and immune index of Liuzhou Ma chicken.This study provides data support for the practical application of probiotics.
作者
刘欢欢
刘珍珠
娄恺
晁群芳
曾军
LIU Huan-huan;LIU Zhen-zhu;LOU Kai;CHAO Qun-fang;ZENG Jun(College of Life Sciences and Technology,Xinjiang University,Xinjiang Urumqi 830046,China;Institute of Microbiology,XinjiangAcademy of Agricultural Sciences/Xinjiang Key Laboratory of Special Environmental Microbiology,Xinjiang Urumqi 830091,China)
出处
《西南农业学报》
CSCD
北大核心
2020年第1期198-205,共8页
Southwest China Journal of Agricultural Sciences
基金
新疆农业科学院青年基金项目(xjnkq-2017005)
关键词
益生菌
复合益生菌
体增重
肠道酶活
免疫指标
Probiotics
Compound probiotics
Body weight gain
Intestinal enzyme activity
Immune index
