超微粉中草药添加剂对热应激江汉土鸡免疫器官组织形态学的影响

目的]探讨超微粉中草药添加剂对热应激江汉土鸡雏鸡免疫器官组织的影响。方法]采用完全随机试验设计,挑选100只江汉土鸡雏鸡,随机分为5组:1组为对照组,饲喂基础日粮;2、3、4、5组在基础日粮中分别添加0.5%、1.0%、1.5%、2.0%的中草药超微粉添加剂,研究超微粉中草药添加剂对热应激免疫器官组织的影响。结果]2、4组雏鸡体重显著高于对照组(P<0.05);4、5组的法氏囊指数显著高于对照组(P<0.05),2、3、4、5组的脾脏指数分别比对照组提高24.1%、29.6%、26.3%和16.2%,但差异不显著(P>0.05),第4组的胸腺指数显著高于其他组(P<0.05);试验组免疫器官的T、B淋巴细胞相对数显著高于对照组(P<0.05)。试验组的免疫器官细胞紧密,基本无损伤细胞及核固缩现象。结论]中草药超微粉添加剂能够明显刺激免疫器官的生长,并改善其免疫功能。

Effect of Ultrafine Powder Additive of Chinese Herbal on Immune Organs and Tectology of Heat Stress Jianghan Native Chicken

Objective] To research the effect of ultrafine powder additive of Chinese Herbal on immune organs and tectology of heat stress Jianghan native chicken. Metthod ] Using completely randomized experimental design, 100 Jianghan native chickens were allotted to 5 groups at random. Group 1 was the control group which were fed with basal diet, group 2, 3, 4, 5 were respectively fed with 0.5% , 1.0% , 1.5% , 2.0% of the ultrfipe powder Chinese herbal on the basis of basal diet. Effects of uhrafine powder additive of Chinese herbal on immune or- gans and~tectolrgy of heat stress Jianghan native chicken were studied. Result] The body weight of group 2, 4 were significantly higher than that of the controi group（P 〈 0.05 ）. The bursal index of group 4, 5 were significantly higher than that of the control group（ P 〈 0.05 ）, and the spleen index bf group 2, 3, 4, 5 increased 24.1% , 29.6% , 26.3% , 16.2% respectively than that of the control group, but there were no significant diff.erences（ P 〉 0.05 ）, the thymus index of group 4 was significantly higher than that of the other group（ P 〈 0.05 ）. The T-lym- phocytes and B-lymphocytes relative numbers of the experimental group, in the immune organs was significantly higher than that of the control group（P 〈0.05）. In the immune organs of the experimental group, lymphocytes were close, and there were almost no damage cells and nu- clear condensation phenomenon. Conclusion ] The use of ultrafine powder Chinese herbal additives significantly stimulate growth of the im- mune organ and improve immune function.