The effect of clinical lameness on liveweight in a seasonally calving, pasture-fed dairy herd

被引：24
|
作者：
Alawneh, J. I. [1 ]
Stevenson, M. A. [1 ]
Williamson, N. B.
Lopez-Villalobos, N.
Otley, T. [2 ]
机构：
[1] Massey Univ, Inst Vet Anim & Biomed Sci, EpiCtr, Palmerston North 4442, New Zealand
[2] Tru Test New Zealand, Pakuranga 4442, New Zealand
来源：
JOURNAL OF DAIRY SCIENCE | 2012年 / 95卷 / 02期
关键词：
liveweight; lameness; linear mixed model; animal welfare; MILK-YIELD; COW GAIT; CATTLE; ASSOCIATIONS; BEHAVIOR; LESIONS; HEALTH; PAIN;
D O I：
10.3168/jds.2011-4505
中图分类号：
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号：
0905 ;
摘要：
This study investigated the effect of lameness on live-weight (LW) in pasture-fed dairy cattle. The data comprised 222,446 averaged daily LW measurements from 828 lactations of 542 mixed-age cows in a seasonally calving, pasture-fed New Zealand dairy herd. The LW measurements for individual cows were aggregated into weekly averages and analyses conducted to evaluate the effect of a diagnosis of lameness on LW change after controlling for the effect of week in milk, parity, LW at calving, breed, calendar month, and season. In lame cows, LW decreased for up to 3 wk before lameness was diagnosed and for up to 4 wk after treatment. Total LW loss arising from a single lameness episode was, on average, 61 kg (95% confidence interval: 47 to 74 kg). The results from this study demonstrate how LW records for individual animals can be used to enhance a herd manager's ability to detect lame cows and present them for treatment. The methods presented here show how daily LW monitoring might be used as a tool for early detection of lameness in dairy cattle.
引用
收藏
页码：663 / 669
页数：7
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