【摘 要】
：
160只1日龄艾维茵肉仔鸡随机分成4组,分别饲喂添加0%,0.2%,0.4%和0.8%谷氨酰胺的饲粮28 d.每周末每组取6只鸡,颈静脉放血致死,取脾脏,Bouin液固定,制作石蜡切片,HE染色,光镜
【机 构】
：
安徽技术师范学院,安徽科苑集团,安徽和威农业开发股份有限公司
论文部分内容阅读
160只1日龄艾维茵肉仔鸡随机分成4组,分别饲喂添加0%,0.2%,0.4%和0.8%谷氨酰胺的饲粮28 d.每周末每组取6只鸡,颈静脉放血致死,取脾脏,Bouin液固定,制作石蜡切片,HE染色,光镜观察,显微摄影,研究基础日粮中添加谷氨酰胺对肉仔鸡脾组织结构的影响.结果显示:添加谷氨酰胺的各试验组脾小结增多、增大;动脉周围淋巴鞘增厚;椭球增多、增大,细胞排列疏松,鞘毛细血管内皮细胞增高、增多;红髓比例降低,脾索内浆细胞和巨噬细胞增多.添加0.8%谷氨酰胺的脾小结变化明显,添加0.4%谷氨酰胺的动脉周围淋巴鞘和椭球变化明显.说明日粮中适量添加谷氨酰胺可促进脾内淋巴细胞的增殖与分化,从组织学角度证明,谷氨酰胺可促进脾的免疫应答能力,提高机体的免疫功能.
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