Mortality (including euthanasia) among Danish dairy cows (1990-2001)
Mortality (including euthanasia) among Danish dairy cows (1990-2001)
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DOI：
10.1016/j.prevetmed.2003.09.002
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发表时间：
2004-01-30
影响因子：
2.6
通讯作者：
Houe, H
中科院分区：
文献类型：
--
作者：
Thomsen, PT;Kjeldsen, AM;Houe, H
使用丹麦牛数据库(DCD)的数据和问卷调查，检查了丹麦奶牛的死亡率。死亡风险从1990年的约2%增加到1999年的约3.5%。所有奶牛品种和所有年龄段的死亡率都有所增加。年龄较大的奶牛(产次3及以上)的死亡率大约是年轻奶牛死亡率的两倍。30%-40%的死亡发生在哺乳的前30天。大约58%的死亡奶牛被安乐死。对问卷的答复表明，在过去5年中，安乐死奶牛的比例有所增加。在所有死亡中(问卷调查)，86%的死亡可以确定主要原因；25%是运动障碍。(C)2003爱思唯尔B.V.保留所有权利。
Mortality among Danish dairy cows was examined using data from the Danish Cattle Database (DCD) and a questionnaire survey. Mortality risk has increased from approximately 2% in 1990 to approximately 3.5% in 1999. The increased mortality was seen for all dairy breeds and all age groups. Mortality among older dairy cows (parity 3 and older) was approximately twice the mortality among younger cows. 30-40% of deaths were during the first 30 days of the lactation.Approximately, 58% of dead dairy cows had been euthanised. Replies from the questionnaire indicate that the proportion of euthanised cows has increased in the past 5 years. In 86% of all deaths (questionnaire survey) a primary reason could be identified; 25% were for locomotor disorders. (C) 2003 Elsevier B.V. All rights reserved.