Results 21 to 30 of about 1,186 (174)
Possible risk factors for keel bone damage in organic laying hens [PDF]
Animal, 2019 Keel bone damage (KBD) in laying hens is an important welfare problem in both conventional and organic egg production systems. We aimed to identify possible risk factors for KBD in organic hens by analysing cross-sectional data of 107 flocks assessed in ...
L. Jung +8 more
doaj +4 more sources
Radiographic Evaluation of Keel Bone Damage in Laying Hens-Morphologic and Temporal Observations in a Longitudinal Study. [PDF]
Front Vet Sci, 2020 The keel bone of commercially kept laying hens is known to be frequently affected by morphologic changes such as fractures and deformations with important implications for animal welfare. To detect morphologic changes, various methods such as palpation, computed tomography, and ultrasound are available, though radiography allows for the greatest level ...
Baur S +3 more
europepmc +7 more sources
Keel bone damage in laying hens reared in different production systems in Serbia [PDF]
Biotechnology in Animal Husbandry, 2017 The European Union in 2012 banned conventional battery cages for the welfare reasons. However, transition to new housing systems uncovered some new problems, such as keel bone damage (KBD), which also could endanger welfare of laying hens.
Đukić-Stojčić Mirjana +5 more
doaj +5 more sources
Causes of keel bone damage and their solutions in laying hens [PDF]
World's Poultry Science Journal, 2015 Keel bone damage (KBD) is a critical issue facing the contemporary laying hen industry due to the likely pain leading to compromised welfare and reduced productivity. Recent reports suggest that KBD, while highly variable and likely dependent on a host of factors, extends to all housing systems (including traditional battery cages, furnished cages and ...
Alexandra Harlander-Matauschek +4 more
+8 more sources
Keel Bone Damage in Laying Hens
Tavukçuluk Araştırma Dergisi, 2020 The use of alternative housing systems is increasing in response to the press of animal rights organisations and animal welfare-sensitive consumers. Pursuant to animal welfare legislation, it has become compulsory in the European Union member states to house laying hens in enriched cages or aviaries.
Ekrem Laçin, Ayşe Uysal
openalex +5 more sources
Keel bone damage assessment: consistency in enriched colony laying hens
Poultry Science, 2018 Damage to the keel bone is a major issue in the laying hen industry. The goal of this study was to compare palpation results of live laying hens to digital computed tomography (CT) images, to assess changes in palpation reliability as training and familiarity increased, and to examine keel bone morphology over time.
Nicholas J. Chargo +5 more
openalex +3 more sources
Effect of Different Cage Densities and Age on Keel Bone Damage and Some Hormones in Laying Hens [PDF]
Brazilian Journal of Poultry ScienceThis study aimed to determine the effect of three distinct cage densities (750 cm2/hen, 535 cm2/hen, and 375 cm2/hen) on the keel bone damage of brown (Hyline Brown, HB) and white (Isa Tinted, IT) laying hens by x-ray method.
A Uysal, E Laçin
doaj +2 more sources
Poultry Science, 2016 The prevalence of keel bone damage as well as external egg parameters of 2 pure lines divergently selected for high (H) and low (L) bone strength were investigated in 2 aviary systems under commercial conditions. A standard LSL hybrid was used as a reference group.
Ariane Stratmann +5 more
openalex +3 more sources
Research Note: A deep learning method segments chicken keel bones from whole-body X-ray images [PDF]
Poultry Science: Most commercial laying hens suffer from sternum (keel) bone damage including deviations and fractures. X-raying hens, followed by segmenting and assessing the keel bone, is a key to automating the monitoring of keel bone condition.
Moh Sallam +3 more
doaj +2 more sources
DAMAGES OF THE KEEL BONE IN LAYING HENS – OVERVIEW OF THE ETIOLOGICAL ASPECTS [PDF]
Trakia Journal of Sciences, 2020 The damages of the locomotor system and the skeletal system, in particular, are one of the major problems in the industrial poultry farming. The topic for the pathological changes in the keel bone in oviparous birds has become especially popular among ...
K. Uzunova, L. Lazarov
doaj +2 more sources