摘要
通过在日粮中添加不同脱乙酰度壳聚糖研究其对肉仔鸡生长性能和免疫功能的影响。试验结果表明:1～21日龄,添加壳聚糖各组对肉仔鸡日增重均有不同程度的抑制作用,但差异不显著;22～49日龄中添加脱乙酰度95.3%壳聚糖,具有一定的促生长作用。在肉仔鸡生长全期添加不同脱乙酰度的壳聚糖对肉仔鸡生长性能无显著影响。21日龄时脱乙酰度86.2%壳聚糖组T淋巴细胞比率显著高于对照组,而其他壳聚糖组与对照组相比,差异不显著;添加壳聚糖有助于提高肉仔鸡新城疫HI抗体水平的趋势,但差异不显著。
The effect of different desace, tylated degree chitosans on growth performance and immune function of proilers was studied, The result showed that chitosan groups decreased growth performance at 1-21 days old. Chitosan with desacetylation degree of 95.3% increased growth performance at 22-49 days old, In 21 d age,chitosan with desacetylated 86.2% degree improved T lymphocytes percentage than that of control group （P〈0.05）,other chitosan groups were no significant difference compared to control group （P〉0.05）, In the whole growing stage,chitosan supplement improved HI antibody level against Newcastle disease（P〉0.05）.
出处
《中国家禽》
北大核心
2006年第20期20-23,共4页
China Poultry
关键词
不同脱乙酰度壳聚糖
肉仔鸡
生长性能
免疫
different desacetylated degree chitosans
broilers
growth
immunity
