ArticleVeterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association2023
Intraobserver repeatability for a standardized protocol to quantify keel bone damage in laying hens using discrete and continuous radiographic measures.
Article in Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed, 5 citations in OpenAlex.
- Genetics of digital phenotypes of keel bone in layer chickens and correlations with keel bone fractures and deviations.Genetics, selection, evolution : GSE · 2025Article
- 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.Frontiers in veterinary science · 2024Article
- Fracture morphology and ossification process of the keel bone in modern laying hens based on radiographic imaging.PloS one · 2024Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
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 effects of novel interventions. The objectives of the current retrospective secondary analysis study were to develop and test intraobserver repeatability for a standardized protocol to quantify three categories of radiographic KBD using open-source image analysis software and discrete and continuous variables. The standardized protocol was developed and evaluated using triplicate measurements of 470 keel bone radiographs that had been previously acquired for a prospective study. Intraobserver repeatability was assessed using intra-class correlation coefficient (ICC) and control chart methods. Based on control chart analyses, measures within the acceptable range of intra-observer variation using the standardized protocol were the number of complete cranial fractures (97.02%), incomplete cranial fractures (96.38%), complete caudal fractures (95.32%), incomplete caudal fractures (98.09%), cranial calluses (99.79%), and caudal calluses (98.09%); proportion of deviation (POD) measurements (97.87%); and angle of displacement (AOD) measurements (93.60%). Findings can be used as background to support future research studies on KBD in laying hens.
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Registered trials
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