青海省某奶牛场隐性酮病的调查研究

An Investigation on Latent Ketosis in a Dairy Cow Farm of Qinghai Province

用水杨酸比色法测定青海民和县某奶牛场A、B两个群体50头奶牛的血、乳和尿中的酮体,其含量分别为血酮1.163 mmol/L±0.421 mmol/L,乳酮3.041 mmol/L±1.214 mmol/L和尿酮3.232 mmol/L±1.713 mmol/L。结果表明,其中有9头奶牛有隐性酮病,其乳酮和尿酮的相关系数γ=-0.60147。

The concentrations of ketone in periferal blood,milk and urine were determined using salicylic-alde-hyde met hod in 50 Hoslstein cows(two groups A and B) on a farm of Minhe,Qinghai provice.The results showed that the blood ketone was 1.163 mmol/L±0.421 mmol/L,the milk ketone was 3.041 mmol/L 1.214 mmol/L,the urine ketone was 3.232 mmol/L±1.713 mmol/L.9 of them were latent ketosis(milk ketone,urine ketone,blood ketone,two indexes of the three were higher than 1.722 mmol/L),The coefficient correlation of milk ketone and urine ketone is-0.601 47.