CAJ | 학술논문

2012年1月~2013年8月，笔者对石河子地区12个规模场奶牛蹄叶炎发病情况进行了调研。奶牛蹄叶炎平均发病率为9.12%~19.78%，淘汰率为8.1%~15.3%，犊牛、青年牛发病率为0。临床调查结果发现蹄叶炎发病有品系间差异，体重较大的加拿大系荷斯坦牛发病率高于澳大利亚系荷斯坦牛（P<0.01）；1~2胎奶牛发病率最高；发病时间多在产后3~19日内；发病季节在冬季的12月~次年5月间。临床病牛产奶量显著下降（P<0.01），患病牛血液丙氨酸氨基转移酶显著升高（P<0.05）、葡萄糖含量显著降低（P<0.05）、组胺水平较健康奶牛显著升高（P<0.01）。高精料低粗纤维饲养是发病的重要因素[1]；运动场凸凹不平、无牛床的奶牛场病牛数量有增长的趋势。
2012년1월~2013년8월，필자대석하자지구12개규모장내우제협염발병정황진행료조연。내우제협염평균발병솔위9.12%~19.78%，도태솔위8.1%~15.3%，독우、청년우발병솔위0。림상조사결과발현제협염발병유품계간차이，체중교대적가나대계하사탄우발병솔고우오대리아계하사탄우（P<0.01）；1~2태내우발병솔최고；발병시간다재산후3~19일내；발병계절재동계적12월~차년5월간。림상병우산내량현저하강（P<0.01），환병우혈액병안산안기전이매현저승고（P<0.05）、포도당함량현저강저（P<0.05）、조알수평교건강내우현저승고（P<0.01）。고정료저조섬유사양시발병적중요인소[1]；운동장철요불평、무우상적내우장병우수량유증장적추세。
In this study, a total of 12 cattle farms were investigated for cattle laminitis from January 2012 to August 2013. The morbidity and elimination rate of cows for laminitis were 9.12%~19.78% and 8.1%~15.3%, respectively. There were pertinency between breed and illness. Because of the cows, weight, the morbidity of Canada strains Holstein cow was higher than Australia strains(P<0.01). The illness mainly occur in December to May, and the milk yield of cow fall markedly with the lactation. The levels of Alanine aminotransferase was higher than normal(P<0.05) and blood glucose was lower(P<0.05). It was the main cause for overfeed commercial feed in diet for milk cow. The conditions of ground and cow bed were closely related to laminitis.