CAJ | 학술논문

为了查明新疆石河子地区规模化牛场奶牛隐性乳房炎的流行现状，本试验选择石河子地区148团某牛场（A牛场）、150团某牛场（B场）、133团某牛场（C牛场）、121团某牛场（D牛场）、石河子周边某牛场（E牛场）及136团某牛场（F牛场）六个规模化牛场为研究对象，采用CMT法对试验区牛场进行了隐性乳房炎检测，经过对480头奶牛、1868个乳区的测定，共检出196头隐性乳房炎奶牛，阳性乳区数为671，病牛阳性率与乳区阳性率分别为40.8%和35.9%。通过数据统计分析表明，该地区5岁以上奶牛的隐性乳房炎阳性率最高（49.61%），3岁奶牛阳性率最低；5胎以上的阳性率最高（45.45%），阳性率最低的为2胎奶牛（31.25%）；隐性乳房炎的阳性率随着产奶量的增加呈下降趋势，产奶量在15kg/d以下的奶牛隐性乳房炎阳性率最高（89.13%），15～20kg/d的次之（58.33%），35kg/d以上的最低（14.81%）。
위료사명신강석하자지구규모화우장내우은성유방염적류행현상，본시험선택석하자지구148단모우장（A우장）、150단모우장（B장）、133단모우장（C우장）、121단모우장（D우장）、석하자주변모우장（E우장）급136단모우장（F우장）륙개규모화우장위연구대상，채용CMT법대시험구우장진행료은성유방염검측，경과대480두내우、1868개유구적측정，공검출196두은성유방염내우，양성유구수위671，병우양성솔여유구양성솔분별위40.8%화35.9%。통과수거통계분석표명，해지구5세이상내우적은성유방염양성솔최고（49.61%），3세내우양성솔최저；5태이상적양성솔최고（45.45%），양성솔최저적위2태내우（31.25%）；은성유방염적양성솔수착산내량적증가정하강추세，산내량재15kg/d이하적내우은성유방염양성솔최고（89.13%），15～20kg/d적차지（58.33%），35kg/d이상적최저（14.81%）。
In order to identify the epidemic situation of cow subclinical mastitis in Shihezi areas, totally 480 cows and 1868 breast areas in six large scale cow farms were detected by using CMT method ,the results showed that 196 cows and 671 breast area were positive, the positive rate of subclinical mastitis and breast area were 35.9%and 40.8% respectively. The subclinical mastitis for cows of 5 years old had the highest positive rate(49.61%) , 3-year-old cows was the lowest positive rate.The positive rate for cows over 4 parities was the highest(45.45%) , the lowest positive rate was 2 parities cows(31.25%) . The positive rate of subclinical mastitis was increased with the decrease of milk production. The positive rate of subclinical mastitis cows milk at 15kg/d was the highest(89.13%) , secondly was 15~20kg/d group (58.33%), and 35kg/d group was the lowest(14.81%). Therefore, cow subclinical mastitis in Shihezi area was relatively high and the prevention of the disease should be strengthened.