The Influence of Keel Bone Damage on Welfare of Laying Hens [PDF]
Frontiers in Veterinary Science, 2018 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.
Anja B. Riber +2 more
doaj +6 more sources
Explanations for keel bone fractures in laying hens: are there explanations in addition to elevated egg production? [PDF]
Poultry Science, 2020 The current article served to provide the most up-to-date information regarding the causes of keel bone fracture. Although elevated and sustained egg production is likely a major contributing factor toward fractures, new information resulting from the ...
Michael J. Toscano +5 more
doaj +3 more sources
Keel bone fractures induce a depressive-like state in laying hens [PDF]
Sci Rep, 2020 In commercial flocks of laying hens, keel bone fractures (KBFs) are prevalent and associated with behavioural indicators of pain. However, whether their impact is severe enough to induce a depressive-like state of chronic stress is unknown.
E. A. Armstrong +8 more
semanticscholar +7 more sources
Pathological characterization of keel bone fractures in laying hens does not support external trauma as the underlying cause. [PDF]
PLoS ONE, 2020 Keel bone fractures in laying hens have been described with increasing prevalence from several countries over the last twenty years and are considered one of the greatest welfare problems to the layer industry.
Ida Thøfner +4 more
doaj +3 more sources
Histomorphological characteristics of keel bone maturation and keel bone fractures in laying hens [PDF]
Avian PathologyThe keel bone in laying hens is prone to fractures, especially on the caudal third of the keel, which is also the last part to ossify. Keel bone fractures (KBF) typically occur between 25 and 50 weeks of age (WOA).
P. Gretarsson +4 more
semanticscholar +4 more sources
Intraobserver repeatability for a standardized protocol to quantify keel bone damage in laying hens using discrete and continuous radiographic measures. [PDF]
Vet Radiol Ultrasound, 2023 Sternal carina damage (keel bone damage, KBD) is an important welfare concern for laying hen producers and backyard flock owners. Quantitative radiographic measures of KBD severity are helpful for researchers who study causes for this problem and the ...
Cerano Harrison +3 more
semanticscholar +2 more sources
Intra-individual variation of hen movements is associated with later keel bone fractures in a quasi-commercial aviary [PDF]
Sci Rep, 2023 Measuring intra- and inter-individual variation in movement can bring important insights into the fundamental ecology of animals and their welfare. Although previous studies identified consistent differences in movements of laying hens within commercial ...
C. Montalcini +3 more
semanticscholar +2 more sources
Keel bone damage affects behavioral and physiological responses related to stress and fear in two strains of laying hens. [PDF]
J Anim Sci, 2022 Keel bone damage (KBD) is more prevalent in alternative laying hen housing systems than in conventional cages, and its incidence differs from strain to strain. However, the information of KBD in Lindian chickens, a native Chinese strain, is limited.
Haidong Wei +7 more
semanticscholar +2 more sources
Keel bone fractures in broiler breeders: is palpation a reliable diagnostic method? [PDF]
Avian Pathology, 2022 The aim of this study was to estimate the sensitivity and specificity of palpation relative to necropsy for detection of keel bone fractures (KBF) in broiler breeders. In addition, the study investigated observer reliability of palpation. Four commercial
K. Kittelsen +5 more
semanticscholar +5 more sources
Can the assessment of skin injuries and keel bone damage at the slaughterhouse replace on-farm assessments? [PDF]
PLoS OneTwo major welfare problems in laying hen farming are keel bone damage (KBD) and cannibalism. Their assessment is time-consuming, needs well-trained assessors, and prevalence estimates are often imprecise due to small sample sizes.
Lisa Jung +3 more
semanticscholar +2 more sources