【摘要】 本文研究结果表明：乳房炎（ＰＬ－乳房炎简易诊断法）检查结果为全群挤奶牛各乳区乳房炎检查阴性率从４７％提高到８１％，初产泌乳牛阴性率从６９％提高到９２％，第二胎泌乳牛阴性率从２５％提高到８２％，第３胎以上泌乳牛阴性率从２７％提高到６８％。由此可见采用正确挤奶顺序对降低乳房炎具有显著效果。更多还原

【Abstract】 The effect of proper milking procedure on reducing mastitis of dairy cow was investigated. The results showed that the negative rate of mastitis in whole dairy herd was enhanced from 47% to 81%. Further investigation indicated that the negative rate was enhanced from 69% to 92% for cows which are during first milking period;and from 27% to 68% for cows which are during more than second milking period. Proper milking procedure showed significant effect on reducing mastitis of dairy cows. 更多还原