摘要
本试验将不同剂量的枯草芽孢杆菌制剂添加到断奶仔兔基础日粮中,探讨其对仔兔生长发育和预防腹泻的影响。选取健康断奶仔兔40只,随机分为4组,基础日粮中分别添加0.1%、0.2%、0.3%的枯草芽孢杆菌制剂(分别设为A、B、C组),对照组不添加(D组)。连续饲喂30 d后检测断奶仔兔平均日增重、料重比等生长性能指标,检测Ig A、Ig M、Ig G等血清学免疫指标,计算胸腺和脾脏的免疫器官指数,并统计分析断奶仔兔腹泻的发病率和死亡率,评价枯草芽孢杆菌对其抗病能力的影响。结果表明:B组和C组平均日增重极显著高于D组(P<0.01);B组料重比显著低于D组(P<0.05);B组和C组Ig A和Ig G水平均与D组存在显著差异(P<0.05);C组仔兔的胸腺重量显著高于D组(P<0.05);各试验组仔兔的腹泻率和死亡率均显著低于对照组(P<0.05)。结论 :综合评价,在基础日粮中添加0.2%枯草芽孢杆菌制剂可以有效提高断奶仔兔的生长性能和抗腹泻能力。
This experiment added Bacillus subtilis preparation to the weaned rabbit feed to explore its effects on growth performance and disease resistance of the rabbit.Forty healthy weaned rabbits were randomly divided into experimental group(A,B,C)and control group(D).The test group was mixed with 0.1%,0.2%,0.3%of the grass.The Bacillus preparations were not added in the control group,and the weaned rabbits in each group were fed normally.After 30 days,the average daily gain,feed-to-skin ratio and other growth performance indexes of weaned rabbits were measured.Serum immune indexes and immune organ indexes of thymus and spleen were calculated.The incidence and mortality of weaned rabbits were statistically analyzed,and Bacillus subtilis was evaluated.Its impact on disease resistance.The results showed that the average daily weight gain of group B and group C was significantly different from that of group D(P<0.01).The feed conversion ratio of group B was significantly different from that of group D(P<0.05);the level of IgA in group B and group C was The IgG level was significantly different from the D group(P<0.05).The spleen and thymus immune organs index of the C group were the highest,but the difference was not significant(P>0.05).The diarrhea rate and death of the rabbits in each test group The rate was lower than the control group.Conclusion:Adding 0.2%Bacillus subtilis preparation to feed can effectively improve the growth performance and anti-diarrhea ability of weaned rabbits.
作者
薛云
周锋
王乐伟
XUE Yun;ZHOU Feng;WANG Lewei(Department of Medical Technology and Engineering,Henan University of Science and Technology,Luoyang,Henan Province,471023,China)
出处
《中国饲料》
北大核心
2018年第14期84-87,共4页
China Feed
关键词
枯草芽孢杆菌
断奶仔兔
生长性能
免疫
腹泻
Bacillus subtilis
weaned rabbit
growth performance
disease resistance
diarrhea rate
mortality
