Detection and Epidemic Character of Cow Subclincal Mastitis in Scale Cattle Farms of Shihezi
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.
CowsSubclinical mastitisCMT diagnosticsEpidemic character
NETL
NSTL
万方数据
维普
