Fecha/hora: 16/06/2024 02:19:39

Biblioteca(s): | INIA Las Brujas.
Fecha corriente: | 15/03/2023
Fecha de la última actualización: | 15/03/2023
Autoria: | LONDOÑO-GIL, M.; CARDONA-CIFUENTES, D.; ESPIGOLAN, R.; PERIPOLLI, E.; LÔBO, R. B.; PEREIRA, A. S. C.; AGUILAR, I.; BALDI, F.
Afiliación: | MARISOL LONDOÑO-GIL, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista Júlio de Mesquita Filho, Via de Acesso Prof. Paulo Donato Castellane s/n, CEP, SP, Jaboticabal, 14884-900, Brazil; DANIEL CARDONA-CIFUENTES, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista Júlio de Mesquita Filho, Via de Acesso Prof. Paulo Donato Castellane s/n, CEP, SP, Jaboticabal, 14884-900, Brazil; RAFAEL ESPIGOLAN, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Av. Duque de Caxias Norte, 225m Campus Fernando Costa – USP, CEP, SP, Pirassununga, 13635-900, Brazil; ELISA PERIPOLLI, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista Júlio de Mesquita Filho, Via de Acesso Prof. Paulo Donato Castellane s/n, CEP, SP, Jaboticabal, 14884-900, Brazil; RAYSILDO B. LÔBO, Associação Nacional de Criadores e Pesquisadores (ANCP), Rua João Godoy, 463, Jardim América, CEP, SP, Ribeirão Preto, 14020-230, Brazil; ANGÉLICA S. C. PEREIRA, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Duque de Caxias Norte, 225 Campus Fernando Costa Jardim Elite, CEP, SP, Pirassununga, 13635-900, Brazil; IGNACIO AGUILAR GARCIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FERNANDO BALDI, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Av. Duque de Caxias Norte, 225m Campus Fernando Costa – USP, CEP, SP, Pirassununga, 13635-900, Brazil.
Título: | Genomic evaluation of commercial herds with different pedigree structures using the single-step genomic BLUP in Nelore cattle.
Año de publicación: | 2023
Fuente/Imprenta: | Tropical Animal Health and Production, 2023, Volume 55, Issue 2, Article 95. doi: https://doi.org/10.1007/s11250-023-03508-4
ISSN: | 0049-4747
DOI: | 10.1007/s11250-023-03508-4
Idioma: | Inglés
Notas: | Article history: Received 28 April 2022, Accepted 11 February 2023, To be Published April 2023. -- Correspondence author: Cardona-Cifuentes, D.; Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista Júlio de Mesquita Filho, Via de Acesso Prof. Paulo Donato Castellane s/n, CEP, SP, Jaboticabal, Brazil; email:daniel.cardona@unesp.br  --  FUNDING: This work was supported by the São Paulo Research Foundation, FAPESP (grant number 2016/22751-6). -- Publisher: Springer Science and Business Media B.V. --
Contenido: | The aim of this work was to evaluate the impact of applying genomic information in pedigree uncertainty situations on genetic evaluations for growth- and cow productivity-related traits in Nelore commercial herds. Records for accumulated cow productivity (ACP) and adjusted weight at 450 days of age (W450) were used, as well as genotypes of registered and commercial herd animals, genotyped with the Clarifide Nelore 3.1 panel (~29,000 SNPs). The genetic values for commercial and registered populations were estimated using different approaches that included (ssGBLUP) or did not include genomic information (BLUP), with different pedigree structures. Different scenarios were tested, varying the proportion of young animals with unknown sires (0, 25, 50, 75, and 100%), and unknown maternal grandsires (0, 25, 50, 75, and 100%). The prediction accuracies and abilities were calculated. The estimated breeding value accuracies decreased as the proportion of unknown sires and maternal grandsires increased. The genomic estimated breeding value accuracy using the ssGBLUP was higher in scenarios with a lower proportion of known pedigree when compared to the BLUP methodology. The results obtained with the ssGBLUP showed that it is possible to obtain reliable direct and indirect predictions for young animals from commercial herds without pedigree structure. © 2023, The Author(s), under exclusive licence to Springer Nature B.V.
Palabras-Clave: | Beef cattle; Genomic prediction; Genomic selection; Pedigree uncertainty.
Categoría del tema: | L10 Genética y mejoramiento animal
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (103325-1) - PXI - AP - DD - Tropical Animal Health & Production/2023 -  -  - DIS