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Growth Rate Distribution and Potential Non-Linear Relationship between Body Weight and Walking Ability in Turkeys.
Soyalp, Samet; Hartono, Evan; Willems, Owen W; Bai, Xuechun; Wood, Benjamin J; Aggrey, Samuel E; Rekaya, Romdhane.
Afiliación
  • Soyalp S; Department of Animal and Dairy Science, University of Georgia, Athens, GA 30602, USA.
  • Hartono E; Department of Poultry Science, University of Georgia, Athens, GA 30602, USA.
  • Willems OW; Hybrid Turkeys, Kitchener, ON N2K 352, Canada.
  • Bai X; Hybrid Turkeys, Kitchener, ON N2K 352, Canada.
  • Wood BJ; School of Veterinary Science, The University of Queensland, Brisbane, QLD 4343, Australia.
  • Aggrey SE; Department of Poultry Science, University of Georgia, Athens, GA 30602, USA.
  • Rekaya R; Department of Animal and Dairy Science, University of Georgia, Athens, GA 30602, USA.
Animals (Basel) ; 13(18)2023 Sep 20.
Article en En | MEDLINE | ID: mdl-37760379
The aim of this study was to investigate the potential non-linear relationship between growth and walking ability (WA). The phenotypic data included body weights at 12 and 20 weeks and WA at 20 weeks of age measured on 276,059 male turkeys. The growth rate at three age periods (0 to 12, 12 to 20 and 0 to 20 weeks) was calculated. Each bird was assigned to one of the quartiles of the growth rate distribution for each age period. Between the first and fourth quartiles, the incidence of score 1 (bad WA) increased by 31, 18, and 33% for the first, second, and third age periods, respectively. For good WA (scores 4, 5, and 6), the incidence decreased by 55, 66, and 72% between the first and fourth quartiles for the first, second, and third age periods, respectively. Estimates of heritability of WA ranged between 0.18 and 0.26. The genetic correlations between adjacent growth rate quartiles were high and decayed as the interval between quartiles increased. The magnitude of the variation in the incidence of walking scores and genetic correlations across the growth rate quartiles point towards a non-linear relationship between growth and mobility suggesting other factors may affect walking ability.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Animals (Basel) Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Animals (Basel) Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Suiza