Radiographic examination of keel bone damage in living laying hens of different strains kept in two housing systems
Radiographic examination of keel bone damage in living laying hens of different strains kept in two housing systems
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DOI：
10.1371/journal.pone.0194974
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发表时间：
2018-05-09
期刊：
影响因子：
3.7
通讯作者：
Petow, Stefanie
中科院分区：
文献类型：
--
作者：
Eusemann, Beryl Katharina;Baulain, Ulrich;Petow, Stefanie
高患病率的偏差和骨折的龙骨是一个普遍的福利问题，在蛋鸡。本研究的目的是通过实验研究这一多因素问题，并比较不同层线和不同住房系统的患病率和严重程度。高性能白、棕纯种产蛋线和低性能白、棕纯种产蛋线分别饲养在单笼和地板笼中。在35、51和72周龄时，选取97只蛋鸡（每系各19只或20只）重复x线摄影。骨折患病率随年龄增长而增加(p
A high prevalence of deviations and fractures of the keel bone is a widespread welfare problem in laying hens. The aim of this study was to experimentally investigate this multifactorial problem throughout the laying period and to compare the prevalence and severity in different layer lines and different housing systems. High performing white (WLA) and brown (BLA) pure bred layer lines and low performing white (R11, G11) and brown layer lines (L68) were kept in both single cages and a floor housing system. A total of 97 hens (19 or 20 from each line, respectively) were repeatedly radiographed in the 35th, 51st and 72nd week of age. Fracture prevalence increased with age (p