肉鸡腹水综合征的心电图学研究进展

近年对肉鸡腹水综合征的研究已取得进一步的认识 ,在研究肺动脉高压的同时更注意具有潜在作用的心脏病变的研究。家禽的心脏传导系统比较特殊 ,它含有一个返回分支束 ,使右房室瓣受传导神经的支配。当右房室瓣不受传导神经的支配时 ,瓣膜功能不全而引起右心室容量过大 ,可介导右心室肥大。心电图描记是研究肉鸡腹水综合征发病机理的有效手段之一。文章系统地阐述了肉鸡心脏的形态结构和传导系统的特点以及几种肉鸡腹水综合征试验模型的心电图学特征、肉鸡的心脏病理变化与心电图学特征之间的关系

The Research Advancement on Electrocardiograms of Ascites Syndrome in Broiler

In recent years, ascites research has centred on gaining an increased understanding of ascites syndrome (AS) together with the potential role of primary cardiac pathologies. The conduction system in the avian heart is specialized and contains a recurrent bundle branch that innervates the right atrioventricular valve. This predisposes the heart to right ventricular volume overload through a valvular incompetence following a failure of valvular innervation,which mediate ventricular hypertrophy. Electrocardiogram is one of the effective methods in studying on the pathogenesis of the AS in broilers. This paper summarized the morphologic structure and character of conduction system of heart, the electrocardiogram character of several AS researched models, and the relationship between cardic pathological changes and the electrocardiogram character.