Estimation of pre-weaning productive performance and genetic parameters in beef cattle (Bos taurus) and crosses, VIII Region of Chile

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:32:26Z
Fecha de publicación2006-01-01
ResumenThe objective was to determine the productive performance in body weight change from birth until weaning, of calves sired by Angus, Hereford and Polled Hereford with Clavel, Hereford, Holstein, Polled Hereford, and Hybrid (different Holstein and Hereford combinations) cows in a beef cattle herd in the dry area of the Nuble, province of the VIII Region in Chile. The sires and cows were classified according to their phenotypic characteristics. The productive performance was evaluated by analyzing 1,119 production records from year 1990 to 2000 for the variables: birth weight (PN, N=1,119), adjusted weaning weight (PD205, N=660) and preweaning daily gain (GDP; N=660) using the least squares method to determine the effects of breed group of the sire (GRT), breed group of the darn (GRV), and contemporary groups (GC), with age of darn (EDV) as a covariable, oil PN, PD205 and GDP. Genetic and environmental parameters were estimated using an animal model with MTDFREML methodology, through univariable and bivariable analyses to estimate variance and covariance components. GRT and the GC had a significant effect (P<0.05) on PN and PD205 but did not affect GDP (P.0.05). Calves sired by Hereford bulls were 7.5, 12.5 y 14.0 \% above the herd average for PN, PD205 and GDP, respectively. The GRV did not have ail effect (P.0.05) on PN, PD205 and GDP. Heritabilities (h(2)) calculated were 0.49 for PN, 0.15 for PD205 and 0.35 for GDP. Genetic correlation between PN and PD205 was 0.23. Within the GRT the h(2) for PN and PD205 were 0.69 and 0.21 for Angus and 0.47 and 0.23 for Polled Hereford, respectively.es_ES
Doihttps://doi.org/10.4067/s0301-732x2006000100010es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/4273
Idiomaeses_ES
EditorialUNIV AUSTRAL CHILE, FAC CIENCIAS VETERINARIASes_ES
RelaciónArchivos de Medicina Veterinariaes_ES
URL relacionadohttps://doi.org/10.4067/s0301-732x2006000100010es_ES
DerechosAcceso abierto (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_abf2es_ES
FuenteArchivos de Medicina Veterinaria
Palabra clavecalveses_ES
Palabra clavepre-weaning traitses_ES
Palabra claveheritabilityes_ES
TítuloEstimation of pre-weaning productive performance and genetic parameters in beef cattle (Bos taurus) and crosses, VIII Region of Chilees_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorCienfuegos-Rivas, EG
Autorde Orúe-Ríos, MAR
AutorBriones-Luengo, M
AutorMartínez-González, JC
AutorCienfuegos-Rivas, EGes_ES
Autorde Orúe-Ríos, MARes_ES
AutorBriones-Luengo, Mes_ES
AutorMartínez-González, JCes_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número1es_ES
Rango de páginas69-75es_ES
URL relacionadahttps://doi.org/10.4067/s0301-732x2006000100010
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen38es_ES

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