高钠所致肉鸡腹水综合征发病机理的研究

２４０只健康ＡＡ肉鸡随机均分为试验Ｉ组，试验Ⅱ组和对照组，从８日龄起饮用含Ｎａ＾＋６００，１２００和０ｍｇ／Ｌ水。在饲养管理条件相同情况下，观察各组肉鸡临床表现，血液红细胞压积（ｐａｃｋｅｄ ｃｅｌｌ ｖｏｌｕｍｅ，ＰＣＶ），血容量（ｂｌｏｏｄ ｖｏｌｕｍｅ，ＢＶ），红细胞变形性（ｅｒｙｔｈｏｃｙｔｅ ｄｅｆｏｒｍａｂｉｌｉｔｙ，ＥＤ），右心室（ｆｉｇｈｔ ｖｅｎｔｒｉｃｌｅ，ＲＶ），与全心室（ｔ

Pathogenesis of ascites syndrome in broilers induced by high concentration of sodium ion in drinking water

Two hundred and forty broilers were divided into three groups evenly and treated with 0.0, 600 and 1 200 mg/L Na +(from NaCl) in their drinking water separately from 7 to 35 day old to test the hypothesis that excess sodium ion would increase blood volume and packed cell volume and decrease erythrocyte deformability, thus contributing to the increase of ratio of right ventricle to Total ventricle, subsequently to the development of pulmonary hypertension and induced ascites. The treatment groups of 600 and 1 200 mg/L Na + resulted 6.25% and 28.75% mortality respectively from ascites, whereas there was no dead case in the 0.0 mg/L Na + group. The results indicated that increased packed cell volume and increased resistance to blood flow may contribute to the development of pulmonary hypertension and thus induced ascites in the Na + treated group.