【摘要】 目的:研究蜂花粉对动物免疫器官发育的影响。方法:试验取144只1日龄肉鸡,随机分成2组,对照组饲喂基础日粮,试验组添加1.5%的蜂花粉。饲养期42 d。于7,14,21,28,35,42日龄每组随机取鸡6只,解剖取胸腺、腔上囊、脾称重并制作切片。结果:试验组胸腺、腔上囊和脾的平均重量和相对重量均高于对照组,差异显著(P<0.05)或极显著(P<0.01)。试验组的胸腺小叶皮质增厚,胸腺小体增多;腔上囊皱襞发达,腔上囊小结体积大,皮质较厚,退化延缓;脾的动脉周围淋巴鞘增厚,脾小结体积大,生发中心明显,椭球增大。结论:日粮中添加蜂花粉可促进胸腺、腔上囊的早期发育;延缓腔上囊退化;增强脾的免疫应答反应。更多还原

【Abstract】 Objective: To study on the effect of been pollen on development of immune organ of animal.Method: A total of 144 one day-old broilers were randomly divided into 2 groups,in which each group included 72 chickens.The control group was fed on the basal diet for 42 days,and that of experiment group supplemented 1.5% bee pollen.Six chickens in each group were selected and slaughtered at 7,14,21,28,35,42 days respectively,and the thymuses,cloacal bursa and spleens were obtained,weighted,fixed in Bouin liquid and made into paraffin section.Result: Compared with control group,the weight and the relative weight of thymuses,cloacal bursa and spleens of experiment group increased significantly(P<0.05) or extremely significantly(P<0.01).In experiment group,the cortex of thymic lobule,bursa nodule and Periarterial Lymphatic Sheaths thicken obviously;the volume of bursa nodule,splenic nodule and ellipsoid augmented,and the germinal center of splenic nodule were obvious;the thymic corpuscle increased;the plica of cloacal bursa developed well and the degenerating of it retarded.Conclusion: The diet supplemented bee pollen could boost the early development of thymus and cloacal bursa,retard the degenerating of cloacal bursa and promote the immune response of spleen.更多还原