The Influence of Keel Bone Damage on Welfare of Laying Hens.
The Influence of Keel Bone Damage on Welfare of Laying Hens.
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DOI：
10.3389/fvets.2018.00006
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发表时间：
2018
影响因子：
3.2
通讯作者：
Herskin MS
中科院分区：
文献类型：
--
作者：
Riber AB;Casey-Trott TM;Herskin MS
本文综述了关于蛋鸡龙骨损伤的福利含义的最新认识。作为第一部分，我们简要描述不同的情况，提出主要的风险因素，以及关于这种情况的流行情况的调查结果。龙骨损伤在所有类型的商业生产中都有发现，但不同系统、不同国家和不同年龄的母鸡的发病率不同。一般来说，对动物福利的理解受到基于价值的观念的影响，即什么是动物拥有美好生活的重要或可取的东西。这项审查涵盖了不同类型的福利指标，包括衡量鸟类的情感状态、基本健康、功能和自然生活，从而包括典型的公益关切。有龙骨骨折的产蛋鸡在高动机行为上表现出显著的行为差异，如栖息、筑巢和运动，这表明活动能力降低和潜在的负面情绪状态。目前尚不清楚龙骨骨折是否会影响母鸡的死亡率，但似乎与其他福利降低的临床指标之间存在联系。已经发表了几种类型的证据表明龙骨骨折涉及疼痛，这有力地表明骨折是疼痛的来源，至少在骨折发生后的几周内是如此。此外，在鸡蛋生产中也发现了裂缝的负面影响。不管潜在的福利问题如何，现有的科学证据表明，在现代生产系统中，龙骨骨折会降低蛋鸡的福利。由于对龙骨偏斜的福利影响的研究有限，这种情况的后果的证据还不够全面和明确。然而，有迹象表明，龙骨偏差对蛋鸡的福利有负面影响。为了减少这种情况的发生，并研究应该如何治疗受影响的鸟类，需要对龙骨损伤的福利影响进行更多的研究。研究应侧重于遗传系、基因选择、住房和营养对这些疾病的发展、流行和严重程度的影响，最好作为纵向和/或跨国研究进行。
This article reviews current knowledge about welfare implications of keel bone damage in laying hens. As an initial part, we shortly describe the different conditions and present major risk factors as well as findings on the prevalence of the conditions. Keel bone damage is found in all types of commercial production, however with varying prevalence across systems, countries, and age of the hens. In general, the understanding of animal welfare is influenced by value-based ideas about what is important or desirable for animals to have a good life. This review covers different types of welfare indicators, including measures of affective states, basic health, and functioning as well as natural living of the birds, thereby including the typical public welfare concerns. Laying hens with keel bone fractures show marked behavioral differences in highly motivated behavior, such as perching, nest use, and locomotion, indicating reduced mobility and potentially negative affective states. It remains unclear whether keel bone fractures affect hen mortality, but there seem to be relations between the fractures and other clinical indicators of reduced welfare. Evidence of several types showing pain involvement in fractured keel bones has been published, strongly suggesting that fractures are a source of pain, at least for weeks after the occurrence. In addition, negative effects of fractures have been found in egg production. Irrespective of the underlying welfare concern, available scientific evidence showed that keel bone fractures reduce the welfare of layers in modern production systems. Due to the limited research into the welfare implications of keel bone deviation, evidence of the consequences of this condition is not as comprehensive and clear. However, indications have been found that keel bone deviations have a negative impact on the welfare of laying hens. In order to reduce the occurrence of the conditions as well as to examine how the affected birds should be treated, more research into the welfare implications of keel bone damage is needed. Research should focus on effects of genetic lines, genetic selection, housing, and nutrition for the development, prevalence, and severity of these conditions, preferably conducted as longitudinal and/or transnational studies.
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DOI：
10.3390/ani4020374
发表时间：
2014-06-20
期刊：
Animals : an open access journal from MDPI
影响因子：
--
作者：
Bestman M;Wagenaar JP
通讯作者：
Wagenaar JP
影响因子：
2.3
作者：
BARNETT, JL;HEMSWORTH, PH
通讯作者：
HEMSWORTH, PH
影响因子：
2.8
作者：
Codd, JR;Boggs, DF;Carrier, DR
通讯作者：
Carrier, DR
DOI：
10.1016/0007-1935(86)90109-0
发表时间：
1986-11-01
期刊：
BRITISH VETERINARY JOURNAL
影响因子：
--
作者：
BROOM, DM
通讯作者：
BROOM, DM
影响因子：
2.3
作者：
Bokkers, EAM;Koene, P
通讯作者：
Koene, P