Genetics of digital phenotypes of keel bone in layer chickens and correlations with keel bone fractures and deviations [PDF]
Genetics Selection EvolutionBackground Poultry is a global industry with laying hens that are genetically optimized for high egg yield. Keel bone fractures can affect up to 80% of laying hens, posing welfare and production problems.
Moh Sallam +7 more
doaj +5 more sources
Comparisons of longitudinal radiographic measures of keel bones, tibiotarsal bones, and pelvic bones versus post-mortem measures of keel bone damage in Bovans Brown laying hens housed in an aviary system [PDF]
Frontiers in Veterinary ScienceKeel bone damage, include deviations and fractures, is common in both white and brown laying hens, regardless of the housing system. Radiography for assessing birds’ keel bones is was proposed by previous studies.
Moh Sallam +7 more
doaj +6 more sources
Influence of keel impacts and laying hen behavior on keel bone damage [PDF]
Poultry Science: Keel bone damage, which presents as fractures and/or deviations of the keel, has been detected in laying hens housed in all types of systems. Factors leading to keel bone damage in hens housed with limited vertical space, such as those housed in ...
Sydney L. Baker +4 more
doaj +6 more sources
Keel Bone Damage in Commercial Laying Hen Hybrids [PDF]
Veterinary Medicine and ScienceThis work reviews the influence of production systems, strain and age of laying hens on keel bone damages (KBDs) with the subsequent welfare implications and production losses.
N. Abdallah, K. Kursun, M. Baylan
doaj +4 more sources
Serum bone remodeling parameters and transcriptome profiling reveal abnormal bone metabolism associated with keel bone fractures in laying hens [PDF]
Poultry Science, 2023 : Keel bone fractures affect welfare, health, and production performance in laying hens. A total of one hundred and twenty 35-wk-old Hy-line Brown laying hens with normal keel (NK) bone were housed in furnished cages and studied for ten weeks to ...
Haidong Wei +6 more
doaj +5 more sources
Abnormal Bone Metabolism May Be a Primary Causative Factor of Keel Bone Fractures in Laying Hens [PDF]
Animals, 2021 Keel bone damage negatively affects the welfare, production performance, egg quality, and mobility of laying hens. This study aimed to investigate whether abnormal bone metabolism causes keel bone damage in laying hens.
Haidong Wei +9 more
doaj +6 more sources
Association of keel bone morphometry with keel bone damage and skeletal quality in the laying hen [PDF]
Br Poult Sci1. The aim of this work was to identify a heritable keel bone phenotype with a correlation to keel bone damage and/or skeletal bone strength that could be easily measured in the living hen to aid selection to prevent welfare issues. 2. The scoring system
M. Maidin +6 more
semanticscholar +4 more sources
Japanese quails (Coturnix Japonica) show keel bone damage during the laying period—a radiography study [PDF]
Frontiers in PhysiologyKeel bone damage is an important welfare issue in laying hens and can occur with a high prevalence of up to 100% of hens within one flock. Affected hens suffer from pain.
Lisa Hildebrand +5 more
doaj +3 more sources
Keel bone fractures in Danish laying hens: Prevalence and risk factors [PDF]
PLoS One, 2021 Keel bone fractures (KBF) in commercial poultry production systems are a major welfare problem with possible economic consequences for the poultry industry. Recent investigations suggest that the overall situation may be worsening.
I. Thøfner, J. Dahl, J. Christensen
semanticscholar +8 more sources
Fear, anxiety, and production in laying hens with healed keel bone fractures [PDF]
Poult Sci, 2023 For laying hens, the immediate aftermath and healing period of a keel fracture (KF) is characterized by reduced ability to perform species-specific behavior, access resources, and pain. However, the longer-term impacts, once the fracture is completely healed, are less clear.
J. Edgar +5 more
semanticscholar +6 more sources