Estimation of milk production genetic and phenotypictrends in Holstein cattle in Mexico
Records of milk production adjusted to 305 d, adult equivalent of the first lactation and two milking were used. Thosecome from the National Breeding in Mexico PNMG (n= 163.885), which includes records of the Holstein Associationof Mexico (AHM) (n= 43.668) and National Bank of Dairy Information (BNIL) (n= 120.217). Best Linear UnbiasedPredictor method was used to predict breeding values (VG) of animals. ASREML software was used with an animalmodel that included herd-year group-season as fixed effect and animal and residue as random effects. Averages ofVG per sire were estimated weighted by the number of daughters and unweighted for PNMG, AHM and BNIL. Also,we estimated the weighted average of the sires VG of the PNMG according to their country of origin (USA, Canada,Other, Mexico). We also estimated the average of VG and phenotypic values (VF) for dairy cows. The average of VFand VG for cows PNMG, AHM and BNIL increased between 2007 and 2011. Breeders of the AHM chose sires withgreater VG than the BNIL. However, breeders of BNIL used sires with high VG used more frequently. The VG forforeign sires were higher than national sires and were more commonly used by farmers.
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Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias
2015
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rev-remexcp-article40182020-01-09T17:30:04Z Estimation of milk production genetic and phenotypictrends in Holstein cattle in Mexico Tendencias genéticas y fenotípicas para producción de leche de ganado Holstein en dos modalidades de control de producción Toledo Alvarado, Hugo O. Ruiz López, Felipe de Jesús Carlos G. Vázquez Peláez, Carlos G. Berruecos Villalobos, José M. Elzo, Mauricio A. Genetic trends; Phenotypic trends; Holstein; Production. Records of milk production adjusted to 305 d, adult equivalent of the first lactation and two milking were used. Thosecome from the National Breeding in Mexico PNMG (n= 163.885), which includes records of the Holstein Associationof Mexico (AHM) (n= 43.668) and National Bank of Dairy Information (BNIL) (n= 120.217). Best Linear UnbiasedPredictor method was used to predict breeding values (VG) of animals. ASREML software was used with an animalmodel that included herd-year group-season as fixed effect and animal and residue as random effects. Averages ofVG per sire were estimated weighted by the number of daughters and unweighted for PNMG, AHM and BNIL. Also,we estimated the weighted average of the sires VG of the PNMG according to their country of origin (USA, Canada,Other, Mexico). We also estimated the average of VG and phenotypic values (VF) for dairy cows. The average of VFand VG for cows PNMG, AHM and BNIL increased between 2007 and 2011. Breeders of the AHM chose sires withgreater VG than the BNIL. However, breeders of BNIL used sires with high VG used more frequently. The VG forforeign sires were higher than national sires and were more commonly used by farmers. Se utilizaron registros de producción de leche ajustada a 305 días, equivalente edad adulta y dos ordeñas de la primera lactancia, del Programa Nacional de Mejoramiento Genético en México PNMG (n= 163,885), que incluye a la Asociación Holstein de México (AHM) (n= 43,668) y al Banco Nacional de Información Lechera (BNIL) (n= 120,217). El objetivo del estudio fue el análisis de las tendencias genéticas de poblaciones Holstein en México. Se utilizó el método del Mejor Predictor Lineal Insesgado para predecir los valores genéticos (VG) de los animalescon un modelo animal usando el programa ASREML, el modelo incluyó el grupo hato-año-estación de parto como efecto fijo, y animal y residuo como aleatorios. Se estimaron los promedios de los VG de los sementales ponderados por el número de hijas y no ponderados del PNMG, AHM y BNIL. Así como los promedios ponderados de los VG de los sementales del PNMG de acuerdo a su país de origen (EUA, Canadá, México y Otros). También se estimaron los promedios de VG y valores fenotípicos (VF) para las vacas en producción. Los VG y VF promedios de las vacas del PNMG, AHM y BNIL aumentaron entre el 2007 y el 2011. Ganaderos de la AHM escogieron sementales con mayores VG que los del BNIL. Sin embargo, ganaderos del BNIL utilizaron sementales con altos VG más frecuentemente. Los sementales extranjeros tuvieron VG superiores a los nacionales y fueron más utilizados por los ganaderos. Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias 2015-04-24 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://cienciaspecuarias.inifap.gob.mx/index.php/Pecuarias/article/view/4018 Revista Mexicana de Ciencias Pecuarias; Vol. 5, Núm. 4 (2014): Octubre-Diciembre; 471-485 Revista Mexicana de Ciencias Pecuarias; Vol. 5, Núm. 4 (2014): Octubre-Diciembre; 471-485 2448-6698 2007-1124 spa https://cienciaspecuarias.inifap.gob.mx/index.php/Pecuarias/article/view/4018/3352 http://creativecommons.org/licenses/by-nc-sa/4.0 |
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Toledo Alvarado, Hugo O. Ruiz López, Felipe de Jesús Carlos G. Vázquez Peláez, Carlos G. Berruecos Villalobos, José M. Elzo, Mauricio A. |
spellingShingle |
Toledo Alvarado, Hugo O. Ruiz López, Felipe de Jesús Carlos G. Vázquez Peláez, Carlos G. Berruecos Villalobos, José M. Elzo, Mauricio A. Estimation of milk production genetic and phenotypictrends in Holstein cattle in Mexico |
author_facet |
Toledo Alvarado, Hugo O. Ruiz López, Felipe de Jesús Carlos G. Vázquez Peláez, Carlos G. Berruecos Villalobos, José M. Elzo, Mauricio A. |
author_sort |
Toledo Alvarado, Hugo O. |
title |
Estimation of milk production genetic and phenotypictrends in Holstein cattle in Mexico |
title_short |
Estimation of milk production genetic and phenotypictrends in Holstein cattle in Mexico |
title_full |
Estimation of milk production genetic and phenotypictrends in Holstein cattle in Mexico |
title_fullStr |
Estimation of milk production genetic and phenotypictrends in Holstein cattle in Mexico |
title_full_unstemmed |
Estimation of milk production genetic and phenotypictrends in Holstein cattle in Mexico |
title_sort |
estimation of milk production genetic and phenotypictrends in holstein cattle in mexico |
description |
Records of milk production adjusted to 305 d, adult equivalent of the first lactation and two milking were used. Thosecome from the National Breeding in Mexico PNMG (n= 163.885), which includes records of the Holstein Associationof Mexico (AHM) (n= 43.668) and National Bank of Dairy Information (BNIL) (n= 120.217). Best Linear UnbiasedPredictor method was used to predict breeding values (VG) of animals. ASREML software was used with an animalmodel that included herd-year group-season as fixed effect and animal and residue as random effects. Averages ofVG per sire were estimated weighted by the number of daughters and unweighted for PNMG, AHM and BNIL. Also,we estimated the weighted average of the sires VG of the PNMG according to their country of origin (USA, Canada,Other, Mexico). We also estimated the average of VG and phenotypic values (VF) for dairy cows. The average of VFand VG for cows PNMG, AHM and BNIL increased between 2007 and 2011. Breeders of the AHM chose sires withgreater VG than the BNIL. However, breeders of BNIL used sires with high VG used more frequently. The VG forforeign sires were higher than national sires and were more commonly used by farmers. |
publisher |
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias |
publishDate |
2015 |
url |
https://cienciaspecuarias.inifap.gob.mx/index.php/Pecuarias/article/view/4018 |
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