Keel bone fractures are more prevalent in White Leghorn hens than in Red Jungle fowl hens-A pilot study.
Fractures and deviations to the keel bone are common in commercial laying hens, with reported variations in occurrence across strains and breeds. The aetiology is not fully understood, however, modern genetics and selection for efficient egg production has been claimed to be important factors for th...
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Public Library of Science (PLoS)
2021
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oai:doaj.org-article:75a2368d14d54c5a9627be5644111a002021-12-02T20:06:22ZKeel bone fractures are more prevalent in White Leghorn hens than in Red Jungle fowl hens-A pilot study.1932-620310.1371/journal.pone.0255234https://doaj.org/article/75a2368d14d54c5a9627be5644111a002021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0255234https://doaj.org/toc/1932-6203Fractures and deviations to the keel bone are common in commercial laying hens, with reported variations in occurrence across strains and breeds. The aetiology is not fully understood, however, modern genetics and selection for efficient egg production has been claimed to be important factors for the keel bone fractures. To explore this further, we investigated keel bones from two different breeds, representing different degrees of selection for egg production: Red jungle fowl (n = 82), and White Leghorn (n = 32), where the latter is a selected laying breed which is the origin for many modern laying hen hybrids. Keel bones from a total of 116 birds, 53 hens and 63 roosters, were examined by necropsy at 80 weeks of age. All birds were raised in modified aviaries in the same holding facility. Overall, 24.5% of the hens had one or more fractures to the keel, with a difference in the prevalence between hens from the two breeds (p<0.01): 10% (95% CI: 3.7-24%) in the Red Jungle fowl hens and 69% (95% CI: 37-90%) in the White Leghorn hens. No roosters, regardless of breed, had keel bone fractures. Mild to moderate keel bone deviations were present in 54% (95% CI: 25-80%) of the hens and 4.7% (95% CI: 0.5-30%) of the roosters, all White Leghorns.Käthe Elise KittelsenPall GretarssonPer JensenJens Peter ChristensenIngrid ToftakerRandi Oppermann MoeGuro VasdalPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 7, p e0255234 (2021) |
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Medicine R Science Q Käthe Elise Kittelsen Pall Gretarsson Per Jensen Jens Peter Christensen Ingrid Toftaker Randi Oppermann Moe Guro Vasdal Keel bone fractures are more prevalent in White Leghorn hens than in Red Jungle fowl hens-A pilot study. |
| description |
Fractures and deviations to the keel bone are common in commercial laying hens, with reported variations in occurrence across strains and breeds. The aetiology is not fully understood, however, modern genetics and selection for efficient egg production has been claimed to be important factors for the keel bone fractures. To explore this further, we investigated keel bones from two different breeds, representing different degrees of selection for egg production: Red jungle fowl (n = 82), and White Leghorn (n = 32), where the latter is a selected laying breed which is the origin for many modern laying hen hybrids. Keel bones from a total of 116 birds, 53 hens and 63 roosters, were examined by necropsy at 80 weeks of age. All birds were raised in modified aviaries in the same holding facility. Overall, 24.5% of the hens had one or more fractures to the keel, with a difference in the prevalence between hens from the two breeds (p<0.01): 10% (95% CI: 3.7-24%) in the Red Jungle fowl hens and 69% (95% CI: 37-90%) in the White Leghorn hens. No roosters, regardless of breed, had keel bone fractures. Mild to moderate keel bone deviations were present in 54% (95% CI: 25-80%) of the hens and 4.7% (95% CI: 0.5-30%) of the roosters, all White Leghorns. |
| format |
article |
| author |
Käthe Elise Kittelsen Pall Gretarsson Per Jensen Jens Peter Christensen Ingrid Toftaker Randi Oppermann Moe Guro Vasdal |
| author_facet |
Käthe Elise Kittelsen Pall Gretarsson Per Jensen Jens Peter Christensen Ingrid Toftaker Randi Oppermann Moe Guro Vasdal |
| author_sort |
Käthe Elise Kittelsen |
| title |
Keel bone fractures are more prevalent in White Leghorn hens than in Red Jungle fowl hens-A pilot study. |
| title_short |
Keel bone fractures are more prevalent in White Leghorn hens than in Red Jungle fowl hens-A pilot study. |
| title_full |
Keel bone fractures are more prevalent in White Leghorn hens than in Red Jungle fowl hens-A pilot study. |
| title_fullStr |
Keel bone fractures are more prevalent in White Leghorn hens than in Red Jungle fowl hens-A pilot study. |
| title_full_unstemmed |
Keel bone fractures are more prevalent in White Leghorn hens than in Red Jungle fowl hens-A pilot study. |
| title_sort |
keel bone fractures are more prevalent in white leghorn hens than in red jungle fowl hens-a pilot study. |
| publisher |
Public Library of Science (PLoS) |
| publishDate |
2021 |
| url |
https://doaj.org/article/75a2368d14d54c5a9627be5644111a00 |
| work_keys_str_mv |
AT katheelisekittelsen keelbonefracturesaremoreprevalentinwhiteleghornhensthaninredjunglefowlhensapilotstudy AT pallgretarsson keelbonefracturesaremoreprevalentinwhiteleghornhensthaninredjunglefowlhensapilotstudy AT perjensen keelbonefracturesaremoreprevalentinwhiteleghornhensthaninredjunglefowlhensapilotstudy AT jenspeterchristensen keelbonefracturesaremoreprevalentinwhiteleghornhensthaninredjunglefowlhensapilotstudy AT ingridtoftaker keelbonefracturesaremoreprevalentinwhiteleghornhensthaninredjunglefowlhensapilotstudy AT randioppermannmoe keelbonefracturesaremoreprevalentinwhiteleghornhensthaninredjunglefowlhensapilotstudy AT gurovasdal keelbonefracturesaremoreprevalentinwhiteleghornhensthaninredjunglefowlhensapilotstudy |
| _version_ |
1718375366125420544 |