摘要
为探讨松萝酸对肉仔鸡免疫器官生长发育的影响，试验选用225只1日龄AA肉仔鸡，随机分成5组，每组3个重复，每个重复15只。阴性对照组饲喂基础日粮，抗生素组添加0．3g／kg那西肽和0．25g／kg；硫酸黏杆菌素预混剂，试验组分别添加0．003％、0．004％和0．005％松萝酸。结果表明，日粮中添加0．003％松萝酸对肉仔鸡1-42日龄体重及平均日增重具有一定的提高作用，但与其他组差异不显著（P〉0．05）；添加0．004％松萝酸对肉仔鸡胸腺、法氏囊和脾脏的质量及指数均无显著影响（P〉0．05），各添加组也均未观察到异常变化。从总体结果来看，日粮中添加0．004％松萝酸对肉仔鸡免疫器官的作用优于抗生素组。
To study the effects of usnea acid on growth of immune organs in broilers, two hundred and twenty-five one-day-age AA broilers were randomly divided into five groups with 3 replicates per group and 15 chickens per replicate. Negative control group was fed the basal diet,antibiotic group was added 0.3 g/kg Nosiheptide and 0.25 g/kg colistin sulfate premixes, experimental groups were added 0.003%, 0.004% and 0.005% usnea acid, respectively. The results showed that dietary supplemented 0.003% usnea acid could increase body weight and average daily gain at 1 to 42 days of age,but compared with the other groups there were no significant differences （P〉0.05）;dietary 0.004% usnea acid had no significant effect on thymus,bursa and spleen growth （P〉0.05）,and all supplementation group had no abnormal changes. Above the overall results,dietary 0.004% usnea acid had higher effects than antibiotic group on broiler immune organ.
出处
《中国家禽》
北大核心
2013年第18期26-28,共3页
China Poultry
基金
新疆农业大学前期资助课题(XJAU201003)
大学生创新项目(jqzyp42011084)
关键词
松萝酸
肉仔鸡
免疫器官
生长发育
usnea acid
broiler
immune organ
growth and development
