内毒素对畜禽机体产生的影响

The Effect of Endotoxin on the Body of Livestock and Poultry

内毒素属于革兰氏阴性菌细胞外膜内的一种脂多糖,不仅有生物学活性特性,而且小剂量的内毒素还可以促使畜禽机体产生免疫保护作用,对于整个机体来讲是大有好处的,可以成为一种免疫促进剂。但是机体蓄积内毒素剂量超标时,就会促使机体发生炎症,危害畜禽身体健康,成为有害的炎症促进剂。研究证明:家畜(马、牛、猪和家兔)均对内毒素比较敏感,机体摄入内毒素后产生的发热反应、血液指标改变、组织器官病理变化等均非常显著,由此可见内毒素能够对畜禽机体产生强烈的致病性。该文介绍了不同畜禽对内毒素的抵抗力及内毒素对畜禽的病理生理影响。

Endotoxin is a kind of lipopolysaccharide in the outer membrane of gram-negative bacteria.It not only has biological activity,but also a small dose of endotoxin can promote the immune protection of livestock and poultry,which is for the whole body.Greatly beneficial,it can be an immune booster.However,when the body's accumulated endotoxin dose exceeds the standard,it will promote inflammation in the body,endanger the health of livestock and poultry,and become a harmful inflammation promoter.Experimental studies have proved that the livestock(horses,cattle,pigs and rabbits)in production are all sensitive to endotoxin,and the fever response,blood index changes,tissue and organ pathological changes etc.produced by the body after ingesting endotoxin are very significant.This shows that endotoxin can produce strong pathogenicity to livestock and poultry bodies.