Título:	Genetic parameters for novel feedlot profitability-related traits in nelore cattle.
Autor:	PEREIRA, L. BALDI, F. ROSA, G. J. M. FERRAZ, J. B. S. ALBERTINI, T. Z. CARVALHO, M. LOBO, R. B. EIFERT, E. da C. PERIPOLLI, E. MAGNABOSCO, C. de U.
Afiliación:	LETÍCIA PEREIRA, UNIVERSIDADE FEDERAL DE GOIÁS; FERNANDO BALDI, UNIVERSIDADE DE SÃO PAULO; GUILHERME JORDÃO MAGALHÃES ROSA, UNIVERSITY OF WISCONSIN-MADISON; JOSÉ BENTO STERMAN FERRAZ, UNIVERSIDADE DE SÃO PAULO; TIAGO ZANETT ALBERTINI, TECH - INNOVATION TECHNOLOGY FOR AGRICULTURE; MINOS CARVALHO, TECH - INNOVATION TECHNOLOGY FOR AGRICULTURE; RAYSILDO BARBOSA LOBO, ASSOCIAÇÃO NACIONAL DE CRIADORES E PESQUISADORES; EDUARDO DA COSTA EIFERT, CPAC; ELISA PERIPOLLI, UNIVERSIDADE DE SÃO PAULO; CLAUDIO ULHOA MAGNABOSCO, CPAC.
Año:	2025
Referencia:	Journal of Animal Breeding and Genetics, 2025.
Páginas:	11 p.
Descripción:	This study aimed to estimate (co)variance components and genetic parameters for accumulated profitability (AFP) and profit per kilogram of liveweight gain (PFT), and their relationships with weight at 450 days of age (W450), scrotal circumference at 365 days of age (SC365), age at first calving (AFC), probability of precocious calving at 30 months of age (PPC30), age at puberty in males (APM), stayability (STAY), accumulated cow productivity (ACP), rib eye area (REA), rump fat thickness (RFT), residual feed intake (RFI), dry-matter intake (DMI), residual live weight gain (RG), and frame score (FRAME). Data of profitability from 3614 Nelore (Bos indicus) animals were used. The (co)variance components and genetic parameters were estimated using Bayesian inference in a multi-trait animal model. The heritability estimates for AFP and PFT were 0.18 and 0.02, respectively. AFP and PFT exhibited moderate to high genetic correlations with growth traits (0.64 to 0.65), carcass (0.43 to 0.44), feed efficiency (0.72 to 0.88), and frame (0.44 to 0.77), except for the correlation with RFT (−0.10 to −0.68), RFI (−0.23 to 0.28), and between PFT and DMI (0.26). Low to high genetic correlations (−0.47 to 0.76) with female reproductive traits and low correlations (−0.03 to −0.21) with male reproductive traits were observed for both traits. These results provide important information for improving economic performance by including complementary AFP and PFT tools in the selection criteria. Such traits can be strategic tools for producers when identifying animals with greater genetic potential for profitability, supporting decision-making in genetic planning and herd management.
NAL Thesaurus:	Application parameters Genetics Phenotypic variation Phenotypic correlation Zebu Nellore
DOI:	https://doi.org/10.1111/jbg.70031
Notas:	Online first.
Tipo de Material:	Artigo de periódico
Acceso:	openAccess
Aparece en las colecciones:	Artigo em periódico indexado (CPAC)