Brown C A, Rischette S J, Schultz L H
J Dairy Sci. 1986 Mar;69(3):850-4. doi: 10.3168/jds.S0022-0302(86)80475-1.
Information on milking rate, monthly bucket somatic cell counts, mastitis treatment, and milk production was obtained from 284 lactations of Holstein cows separated into three lactation groups. Significant correlations between somatic cell count (linear score) and other parameters included production in lactation 1 (-.185), production in lactation 2 (-.267), and percent 2-min milk in lactation 2 (.251). Somatic cell count tended to increase with maximum milking rate in all lactations, but correlations were not statistically significant. Twenty-nine percent of cows with milking rate measurements were treated for clinical mastitis. Treated cows in each lactation group produced less milk than untreated cows. In the second and third lactation groups, treated cows had a shorter total milking time and a higher percent 2-min milk than untreated cows, but differences were not statistically significant. Overall, the data support the concept that faster milking cows tend to have higher cell counts and more mastitis treatments, particularly beyond first lactation. However, the magnitude of the relationship was small.
从分为三个泌乳组的284头荷斯坦奶牛的泌乳期获取了挤奶率、每月奶桶体细胞计数、乳腺炎治疗情况及产奶量等信息。体细胞计数（线性评分）与其他参数之间的显著相关性包括：第1泌乳期的产奶量（-0.185）、第2泌乳期的产奶量（-0.267）以及第2泌乳期2分钟挤奶量的百分比（0.251）。在所有泌乳期，体细胞计数都倾向于随着最大挤奶率的增加而升高，但相关性无统计学意义。接受挤奶率测量的奶牛中有29%接受了临床乳腺炎治疗。每个泌乳组中接受治疗的奶牛产奶量均低于未治疗的奶牛。在第2和第3泌乳组中，接受治疗的奶牛总挤奶时间较短，2分钟挤奶量的百分比高于未治疗的奶牛，但差异无统计学意义。总体而言，数据支持这样一种观点，即挤奶速度较快的奶牛往往体细胞计数较高且接受更多的乳腺炎治疗，尤其是在第一个泌乳期之后。然而，这种关系的程度较小。
