南京农业大学学报2001，Vol.24Issue(2)：98-101,4.
L-精氨酸对肉鸡肺动脉压和腹水综合征发生的影响
Effect of L-arginine on pulmonary arterial pressure and ascites morbidity in broilers
摘要
Abstract
One hundred and eighty AA broilers were divided equally into control(Group C)and two experiment groups(A，B).Broilers in experiment groups before 14 days of age and group C were fed a normal diet.In experiment groups,broilers were subjected to a change of temperature by lowering 1-2 ℃ per day from 25 ℃(day14)down to 12 ℃，and then maintained at this ambient temperature until 7 weeks of age.At the same time 1.5 mg*kg－1 3，3，5-triiodothyronine(T３）was added to diet of group A in order to induce pulmonary hypertension syndrome(PHS),and 1.5 mg*kg-1T３ with 1% L-arginine to diet of group B with the purpose of decreasing the incidence of PHS.Moreover,mean pulmonary arterial pressure(mPAP)，PCV，RV/TV and plasma nitric oxide(NO)were determined at the age of 3,4,5,6 and 7 weeks,and ascites morbidity was recorded every week.It was found that ascites morbidity in group A was higher than that in group B and C,mPAP in group A was higher than that in group C(P<0.05)from the fifth week and RV/TV got an significant increase from the sixth week(P<0.05).Plasma NO in group B was higher than that in group A from the third week (P<0.05)，RV/TV and mPAP in group B also got an increase just as group A,but the changes delayed one week later than group A.It was suggested that the increase of NO by L-arginine supplememtation could delay the pathophysiological process leading to the occurrance of PHS.关键词
肉鸡/腹水综合征/肺动脉压/精氨酸/低温/一氧化氮分类
农业科技引用本文复制引用
王金勇,王小龙,向瑞平,孙卫东..L-精氨酸对肉鸡肺动脉压和腹水综合征发生的影响[J].南京农业大学学报,2001,24(2):98-101,4.
