March M D, Haskell M J, Chagunda M G G, Langford F M, Roberts D J
Scotland's Rural College (SRUC) Research, King's Buildings, West Mains Road, Edinburgh, EH9 3JG, United Kingdom.
Scotland's Rural College (SRUC) Research, King's Buildings, West Mains Road, Edinburgh, EH9 3JG, United Kingdom.
J Dairy Sci. 2014 Dec;97(12):7985-94. doi: 10.3168/jds.2014-8265. Epub 2014 Oct 11.
This paper presents a summary of results from a 2012 survey that investigated feeding and housing management regimens currently adopted by dairy farmers in Britain. Responses from 863 farms provide a snapshot of dairy industry structure and a description of the range of management systems currently in operation. Outcomes highlight a diversity of management practices, showing that 31% of farms maintained a traditional grazing system with no forage feeding indoors during the summer, whereas 38% of farmers indicated that all their milking cows received some feeding indoors during the summer. A system of housing dairy cows for 24 h/d while they are lactating was implemented by 8% of farms, whereas 1% of farms did not house their cows at any time of the year. Statistical analyses were carried out on 3 distinct groups identified from survey responses: (1) farmers who did not undertake any indoor feeding during the summer; (2) farmers who fed all their milking cows indoors during the summer; and (3) farmers who continuously housed their cows for 24h/d while lactating. Results showed a significant relationship between management type and herd size, and between management type and breed type; on average, herd sizes were larger within systems that feed indoors. No significant relationship was found between management type and farm location when classified by estimated grassland productivity. The results indicate that traditional all-summer grazing is no longer the predominant system adopted by dairy farmers and that other systems such as all-year-round indoor feeding and continuous housing are becoming more prevalent in Britain.
本文介绍了2012年一项调查的结果总结,该调查研究了英国奶农目前采用的饲养和住房管理制度。来自863个农场的回复提供了乳业结构的概况以及当前正在运行的管理系统范围的描述。结果突出了管理实践的多样性,表明31%的农场维持传统放牧系统,夏季不在室内进行草料喂养,而38%的奶农表示他们所有的泌乳奶牛在夏季都在室内接受一些喂养。8%的农场实施了奶牛泌乳期每天24小时圈养的制度,而1%的农场一年中任何时候都不圈养奶牛。对从调查回复中确定的3个不同组进行了统计分析:(1)夏季不进行任何室内喂养的奶农;(2)夏季在室内喂养所有泌乳奶牛的奶农;(3)奶牛泌乳期每天24小时持续圈养的奶农。结果表明,管理类型与畜群规模之间以及管理类型与品种类型之间存在显著关系;平均而言,室内喂养系统中的畜群规模更大。按估计的草地生产力分类时,未发现管理类型与农场位置之间存在显著关系。结果表明,传统的全夏季放牧不再是奶农采用的主要系统,而全年室内喂养和持续圈养等其他系统在英国正变得越来越普遍。