Environmental effects and heritibility for growth traits in Sardo Negro cattle from Mexico

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-09-15T00:31:27Z
Fecha de publicación2007-07-19
ResumenInformation on Sardo Negro cattle obtained from 1997 to 2005, from breeding herds, from the Mexican Association of Zebu Breeders, localized in herds of Mexico was used. The objectives of the study were to evaluate the effect of several environmental factors on birth weight (BW), weight adjusted to 205 (W205), 365 (W365), and 550 days of age (W550), and pre-weaning daily weight gain (DWG) and to estimate heritability (h2) for those traits. The statistical models included the fixed effects of herd, year and season of birth (dry and rainy) and sex of the calf (male or female). The model to estimate the h2 included the fixed effect of contemporary group (herd-year-season-sex) and the direct additive random effect. Analyses were carried out using general linear models and multiple traits derivative-free restricted maximum likelihood procedures. Means for BW, W205, W365, W550, and DWG were 32.9 ± 1.5, 185.1 ± 34.8, 281.4 ± 50.1, 384.9 ± 58.5 y 0.742 ± 0.170 kg, respectively. Heritability estimates for BW, W205, W365, W550, and DWG were 0.00 ± 0.08, 0.27 ± 0.14, 0.26 ± 0.13, 0.12 ± 0.19 y 0.27 ± 0.14, respectively. The results of this study show that environmental factors are important sources of variation for W205, W365, and DWG. The high h2 estimates indicates that it is possible to improve the growth of Sardo Negro cattle by selection.es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/3128
Idiomaenes_ES
URL relacionadohttps://openalex.org/W2143914713es_ES
DerechosAcceso restringido / Suscripción (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_16eces_ES
Palabra claveHeritabilityes_ES
Palabra claveHerdes_ES
Palabra claveZebues_ES
Palabra claveAnimal sciencees_ES
Palabra claveBiologyes_ES
Palabra claveWeight gaines_ES
Palabra claveBeef cattlees_ES
Palabra claveBirth weightes_ES
Palabra claveDemographyes_ES
Palabra claveRandom effects modeles_ES
Palabra claveBody weightes_ES
Palabra claveVeterinary medicinees_ES
ClasificaciónGenetic and phenotypic traits in livestockes_ES
TítuloEnvironmental effects and heritibility for growth traits in Sardo Negro cattle from Mexicoes_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorMartínez-González, Juan Carlos
AutorCastillo-Rodríguez, Sonia Patricia
AutorOrtega-Rivas, Eligio
AutorMartínez-González, Juan Carloses_ES
AutorCastillo-Rodríguez, Sonia Patriciaes_ES
AutorOrtega-Rivas, Eligioes_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número1es_ES
Rango de páginas1-7es_ES
URL relacionadahttps://openalex.org/W2143914713
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen25es_ES

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