Fujiwara Mayumi, Haskell Marie J, Macrae Alastair I, Rutherford Kenneth M D
Animal Behaviour and Welfare, Animal and Veterinary Sciences Research Group, Scotland's Rural College, Edinburgh, UK.
Dairy Herd Health and Productivity Service, Royal (Dick) School of Veterinary Studies and the Roslin Institute, University of Edinburgh, Midlothian, UK.
Vet Rec. 2018 Sep 8;183(9):297. doi: 10.1136/vr.104755. Epub 2018 Jun 15.
Dry period management of the dairy cow focuses on maximising milk production during the subsequent lactation but may include procedures that negatively affect dry cow health and welfare. A survey of dairy farmers in the UK was conducted to investigate dry cow management procedures. The questionnaire was completed by 148 farmers. Most farms (84 per cent) kept dry cows in dynamic social groups. The median length of the dry period was 56 days, and 83 per cent of farms stopped milking abruptly, regardless of milk production level at dry-off. Twenty-seven per cent of cows from respondent farms produced more than 20 kg of milk per day at dry-off. The majority of farms (78 per cent) used antibiotic dry cow intramammary tubes at dry-off, in combination with internal or external teat sealants. Procedures that were commonly practised and potentially stressful for dry cows included abrupt cessation of milking of high yielding cows and frequent changes in diet and social environment.
奶牛干奶期管理的重点是使后续泌乳期的产奶量最大化，但可能包括一些会对干奶牛健康和福利产生负面影响的程序。对英国奶农进行了一项调查，以研究干奶牛管理程序。148位奶农完成了调查问卷。大多数农场（84%）将干奶牛饲养在动态的社会群体中。干奶期的中位数时长为56天，83%的农场突然停止挤奶，而不考虑干奶时的产奶水平。来自受访农场的27%的奶牛在干奶时日产奶量超过20千克。大多数农场（78%）在干奶时使用抗生素干奶牛乳房内插管，并结合使用内部或外部乳头密封剂。常见且可能给干奶牛带来压力的程序包括高产奶牛突然停止挤奶以及饮食和社会环境频繁变化。
