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The Influence of Keel Bone Damage on Welfare of Laying Hens
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 factorsExpand
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Methods for assessment of keel bone damage in poultry.
Keel bone damage (KBD) is a critical issue facing the laying hen industry today as a result of the likely pain leading to compromised welfare and the potential for reduced productivity. RecentExpand
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Opportunities for exercise during pullet rearing, Part I: Effect on the musculoskeletal characteristics of pullets
&NA; Increased load‐bearing exercise improves bone quality characteristics in a variety of species, including laying hens. Providing increased opportunities for exercise during the pullet rearingExpand
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Effectiveness of a nonpenetrating captive bolt for euthanasia of piglets less than 3 d of age.
The objective of this study was to determine the effectiveness of a nonpenetrating captive bolt (NPCB), the Zephyr-Euthanasia (Zephyr-E), for euthanasia of neonatal piglets<72 h of age using signs ofExpand
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Rearing system affects prevalence of keel‐bone damage in laying hens: a longitudinal study of four consecutive flocks
&NA; High flock‐level prevalence of keel‐bone fractures and deviations in laying hens are commonly reported across various housing systems; however, few longitudinal studies exist, especially forExpand
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Opportunities for exercise during pullet rearing, Part II: Long-term effects on bone characteristics of adult laying hens at the end-of-lay
&NA; Osteoporosis in laying hens has been a production and welfare concern for several decades. The objective of this study was to determine whether differing opportunities for exercise during pulletExpand
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Effectiveness of a nonpenetrating captive bolt for euthanasia of 3 kg to 9 kg pigs.
The objective of this study was to determine the effectiveness of a nonpenetrating captive bolt, Zephyr-E, for euthanasia of suckling and weaned pigs from 3 to 9 kg (5-49 d of age) using signs ofExpand
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Behavioral Differences of Laying Hens with Fractured Keel Bones within Furnished Cages
High prevalence of keel bone fractures in laying hens is reported in all housing systems. Keel fractures have been associated with pain and restricted mobility in hens in loose housing. The objectiveExpand
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The effect of space allowance and cage size on laying hens housed in furnished cages, Part II: Behavior at the feeder
ABSTRACT Standards for feeder (a.k.a. feed trough) space allowance (SA) are based primarily on studies in conventional cages where laying hens tend to eat simultaneously, limiting feeder space. LargeExpand
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Development of perching behavior in 3 strains of pullets reared in furnished cages
&NA; Furnished rearing cages are becoming more widely available to replace conventional systems for pullets. To date, there is little information on how pullets develop perching behavior in furnishedExpand
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