Pathological characterization of keel bone fractures in laying hens does not support external trauma as the underlying cause

PloS One
Ida ThøfnerJens Peter Christensen

Abstract

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. In Denmark we have observed fracture prevalence in the range of 53% to 100% in flocks from cage-free systems whereas flock prevalences in birds from enriched cages ranged between 50-98%. Previous research have speculated that the underlying reason for the development of keel bone fractures is trauma in relation to impact of the bird with furniture, other equipment etc. However, little evidence of this theory has been provided. Predisposing factors have also been suggested including genetics of the bird, lack of specific feedstuff components, high egg production, management factors and layer fatigue. This study has addressed the possible pathogenesis of these fractures by pathological characterization of fractures in birds from different production systems. More than 60 keel bones with fractures have been characterized histo-pathologically and by CT scan. This included an assessment of damage to muscles and soft tissues, the bone and the healing process including callus formation. This investigation has shown that high en...Continue Reading

References

Jul 1, 1997·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·L ClaesH J Wilke
Aug 24, 1999·The Veterinary Record·N G Gregory, C D Devine
May 10, 2003·British Poultry Science·R FreireC J Nicol
Feb 26, 2004·Poultry Science·C C Whitehead
Aug 26, 2004·British Poultry Science·R H FlemingC C Whitehead
Sep 1, 1992·Avian Pathology : Journal of the W.V.P.A·A K KatiyarR P Awadhiya
Sep 8, 2009·British Poultry Science·V SandilandsN H C Sparks
Oct 7, 2010·British Poultry Science·C M SherwinC J Nicol
Oct 28, 2011·British Poultry Science·S KäppeliM H Stoffel
Aug 29, 2012·PloS One·Mohammed A F NasrJoanna C Murrell
Nov 21, 2013·The Journal of Pathology·Margaret L NovakTimothy J Koh
May 13, 2014·Veterinary Anaesthesia and Analgesia·Mohammed Af NasrJoanna C Murrell
Feb 2, 2015·Poultry Science·P RegmiD M Karcher
Aug 20, 2015·Poultry Science·T Casey-TrottT Widowski
Jun 23, 2018·Frontiers in Veterinary Science·Christina RufenerMichael J Toscano

❮ Previous
Next ❯

Citations

Jul 28, 2020·Animals : an Open Access Journal From MDPI·Christina RufenerMichael J Toscano
Sep 19, 2020·Animals : an Open Access Journal From MDPI·Käthe Elise KittelsenGuro Vasdal
Nov 27, 2020·Animals : an Open Access Journal From MDPI·Käthe Elise KittelsenGuro Vasdal
Dec 29, 2020·Frontiers in Veterinary Science·Helen GrayLucy Asher
Jun 3, 2021·Animals : an Open Access Journal From MDPI·Christin HabigSteffen Weigend
Aug 6, 2021·Royal Society Open Science·Brianna M LeónAlexandra Harlander-Matauschek
Aug 14, 2021·PloS One·Ida C N ThøfnerJens Peter Christensen

❮ Previous
Next ❯

Software Mentioned

Prism
Mimics
GraphPad
SPSS Statistics

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.