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Genetic parameters for visual scores, growth and carcass traits in Nellore Cattle.
Soares, Byanka B; Brunes, Ludmilla C; Baldi, Fernando Sebastian; Carmo, Adriana S DO; Pereira, Letícia S; Carvalho, Rafael A; Narciso, Marcelo G; Amorim, Sabrina T; Sainz, Roberto Daniel; Magnabosco, Cláudio U.
Afiliación
  • Soares BB; Universidade Federal de Goiás, Departamento de Produção Animal, Campus Samambaia, Rodovia Goiânia - Nova Veneza, Km 8, 74690-900 Goiânia, GO, Brazil.
  • Brunes LC; Embrapa Cerrados, Rodovia BR-020, Km 18, 73310-970 Planaltina, DF, Brazil.
  • Baldi FS; Universidade Estadual Paulista, Campus Jaboticabal, Via de Acesso Prof. Paulo Donato Castellane, s/n, 14884-900 Jaboticabal, SP, Brazil.
  • Carmo ASD; Universidade Federal de Goiás, Escola de Veterinária e Zootecnia, Campus Samambaia, Rodovia Goiânia - Nova Veneza, Km 8, 74690-900 Goiânia, GO, Brazil.
  • Pereira LS; Universidade Federal de Goiás, Departamento de Produção Animal, Campus Samambaia, Rodovia Goiânia - Nova Veneza, Km 8, 74690-900 Goiânia, GO, Brazil.
  • Carvalho RA; Universidade Federal de Goiás, Centro de Parasitologia Veterinária, Avenida Esperança, s/n, Campus Samambaia, 74045-155 Goiânia, GO, Brazil.
  • Narciso MG; Embrapa Arroz e Feijão, Rodovia GO-462, Km 12, Fazenda Capivara, Zona Rural, 75375-000 Santo Antônio de Goiás, GO, Brazil.
  • Amorim ST; Virginia Polytechnic Institute and State University, School of Animal Sciences, Department of Animal and Poultry Sciences, West Campus Dr. Blacksburg, VA, 24060, USA.
  • Sainz RD; Universidade Federal de Goiás, Departamento de Produção Animal, Campus Samambaia, Rodovia Goiânia - Nova Veneza, Km 8, 74690-900 Goiânia, GO, Brazil.
  • Magnabosco CU; Embrapa Cerrados, Rodovia BR-020, Km 18, 73310-970 Planaltina, DF, Brazil.
An Acad Bras Cienc ; 96(1): e20230010, 2024.
Article en En | MEDLINE | ID: mdl-38451594
ABSTRACT
Growth and carcass traits are essential selection criteria for beef cattle breeding programs. However, it is necessary to combine these measurements with body composition traits to meet the demand of the consumer market. This study aimed to estimate the genetic parameters for visual scores, growth (pre and post-weaning weights), and carcass (rib eye area (REA), back and rump fat thickness) traits in Nellore cattle using Bayesian inference. Data from 12,060 animals belonging to the HoRa Hofig Ramos herd were used. Morphological traits were evaluated by the MERCOS methodology. The heritability estimates obtained ranged from low to high magnitude, from 0.15 to 0.28 for visual scores, 0.13 to 0.44 for growth, and from 0.42 to 0.46 for carcass traits. Genetic correlations between visual scores and growth traits were generally of moderate to high magnitudes, however, visual scores showed low correlations with carcass traits, except between sacral bone and structure and REA. Selection for visual score traits can lead to favorable responses in body weight and vice versa, but the same is not true for carcass traits. Morphological categorical traits can be used as complementary tools that add value to selection.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Composición Corporal Límite: Animals Idioma: En Revista: An Acad Bras Cienc Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Brasil
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Composición Corporal Límite: Animals Idioma: En Revista: An Acad Bras Cienc Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Brasil