EFFECT OF PRE-MILKING TEAT DIPPING ON CLINICAL MASTITIS ON DAIRY FARMS IN ENGLAND
EFFECT OF PRE-MILKING TEAT DIPPING ON CLINICAL MASTITIS ON DAIRY FARMS IN ENGLAND
复制标题
DOI：
10.1017/s0022029900027321
复制
发表时间：
1993-02-01
影响因子：
2.1
通讯作者：
BOOTH, JM
中科院分区：
文献类型：
--
作者：
HILLERTON, JE;SHEARN, MFH;BOOTH, JM
进行了两项试验来调查挤奶前乳头浸浴 (PMTD) 对环境相关病原体引起的乳腺炎的影响。第一次试验显示不同牛群之间的效果存在相当大的差异，因此进行了第二次更大规模的试验。在第二项试验中，对 24 周冬季饲养期间的 9 对配对奶牛群的临床乳腺炎发生率进行了比较。所有牛群的乳腺炎发病率都接近试验前的全国平均水平。 在整个试验过程中，每对中的一名成员使用正常的乳房准备方法，并在挤奶后用碘伏消毒剂对所有乳头进行消毒。在其他九个牛群中，在所有挤奶时准备所有乳头。包括将其浸入 0.25% 的可用碘消毒剂中，并将其留在奶头上 30 秒。然后在簇附着之前用纸巾擦拭每个乳头。在牛群试验组之间，乳腺炎的总体发生率或由任何特定类型或一组病原体引起的乳腺炎发生率没有差异。 与前一个冬天相比，两组的乳腺炎都有所减少。 尽管某些牛群有明显的好处，但总体上并没有好处。 III 与前一个冬天相比，对照牛群报告的乳腺炎比 PMTD 牛群有更大的减少。审判监督对正常实践的影响远远超过了 PMTD 的影响。 PMTD 对散装奶的细菌总数、细胞计数或碘含量似乎没有影响。尽管大多数农场和风险群体可以从更好地关注传统乳腺炎控制中受益，但似乎没有理由大规模使用 PMTD。
Two trials were conducted to investigate the effect of pre-milking teat dipping (PMTD) on mastitis caused by environmentally associated pathogens. The first trial showed considerable variation in effect between herds, so a second, larger trial was conducted. In this second trial a comparison of the rate of clinical mastitis was made between nine matched pairs of dairy herds over 24 weeks of the winter housed period. All herds were near, the national average incidence of mastitis before the trial. One member of each pair used their normal method of udder preparation throughout the trial and disinfected all teats after milking with an iodophor disinfectant. In the other nine herds the preparation of all teats, at all milkings. included dipping in a 0.25% available iodine disinfectant, which was left on the teat for 30 s. Every teat was then wiped with a paper towel before cluster attachment. There was no difference in the overall rate of mastitis or the incidence of mastitis caused by any particular type or group of pathogens between the trial groups of herds. Both groups showed a reduction in mastitis compared with the previous winter. Although there were apparent benefits in some pairs of herds there was no overall benefit. Iii comparison with the previous winter the control herds reported a greater reduction in mastitis than the PMTD herds. The effect of trial supervision on normal practice gave a benefit which overwhelmed any effect of PMTD. There appeared to be no effect of PMTD on the total bacterial count, cell count or iodine content of bulk tank milk. There appears to be no justification for wholesale use of PMTD although most farms and risk groups could benefit from better attention to conventional mastitis control.