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Shape and fractures of carina sterni in chicken genotypes with different egg deposition rates reared indoor or free-range.
Pulcini, Domitilla; Mattioli, Simona; Angelucci, Elisa; Chenggang, Wei; Cartoni Mancinelli, Alice; Napolitano, Riccardo; Sirri, Federico; Piscitelli, Raffaela; Mugnai, Cecilia; Castellini, Cesare.
Affiliation
  • Pulcini D; Council for Agricultural Research and Economics, Animal Production and Aquaculture, 00015, Monterotondo, Rome, Italy.
  • Mattioli S; Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06100, Perugia, Italy. simona.mattioli@unipg.it.
  • Angelucci E; Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06100, Perugia, Italy.
  • Chenggang W; Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06100, Perugia, Italy.
  • Cartoni Mancinelli A; Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06100, Perugia, Italy.
  • Napolitano R; Council for Agricultural Research and Economics, Animal Production and Aquaculture, 00015, Monterotondo, Rome, Italy.
  • Sirri F; Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, 40064, Ozzano dell'Emilia, Italy.
  • Piscitelli R; Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, 40064, Ozzano dell'Emilia, Italy.
  • Mugnai C; Department of Veterinary Sciences, University of Turin, 10095, Turin, Italy.
  • Castellini C; Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06100, Perugia, Italy.
Sci Rep ; 13(1): 22495, 2023 12 15.
Article in En | MEDLINE | ID: mdl-38110659
ABSTRACT
Commercial laying hens have high frequency of damage to the keel bone (KB), which causes negative effects on health and welfare. KB damage may consist in fractures (KBF) and deviations (KBD). The aim of the present study was to compare the KB shape, by means of Geometric Morphometric, and the occurrence of fractures in different chicken genotypes reared either free-range (FR) or in enriched cages. Moreover, the relationship between KB shape, genotype and rearing system was analysed. Sixty birds/genotype (2 Italian local breeds, Bionda Piemontese and Robusta Maculata, their crossbreeds with Sasso and Lohmann Brown) were used. All the hens fed the same commercial feed throughout the trial. Body weight, egg production, feed intake and mortality were recorded from 25 to 66 weeks of age. Ca intake (IN) and output (OUT) were estimated and Ca OUT/IN was calculated. FR affected the occurrence of KB deviations but not the shape, whereas the fractures were mainly affected by genotype. Local breeds had a lower prevalence of KBF with similar level of KBD but with different shapes. Crossbreeds seemed to be a suitable compromise between egg deposition rate and occurrence of KB damages.
Subject(s)

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Chickens / Fractures, Bone Limits: Animals Language: En Journal: Sci Rep Year: 2023 Document type: Article Affiliation country: Country of publication:

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Chickens / Fractures, Bone Limits: Animals Language: En Journal: Sci Rep Year: 2023 Document type: Article Affiliation country: Country of publication: