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Abstract

The purpose of this study was to examine the genetic variability of the Mexican Simmental. Inbreeding was calculated by year for animals born from 1985 to 2014. Proportion of ancestors known, average equivalent complete generations, generation interval, and effective size, as well as the effective...

Author(s)
Ríos Utrera, Á.; Vega Murillo, V. E.; Montaño Bermúdez, M.; Martínez Velázquez, G.; Román Ponce, S. I.
Publisher
Sociedade Brasileira de Zootecnia, Viçosa, Brazil
Citation
Revista Brasileira de Zootecnia, 2018, 47, pp e20160088
Abstract

Background: Knowledge of genetic correlations and the economics of traits are essential to decide which traits should be used as selection criteria. Objective: To estimate heritabilities and genetic, environmental, and phenotypic correlations, and direct (DRS) and correlated (CRS) responses to...

Author(s)
Ríos-Utrera, Á.; Montaño-Bermúdez, M.; Vega-Murillo, V. E.; Velázquez, G. M.; Baeza-Rodríguez, J. J.
Publisher
Universidad de Antioquia, Medellín, Colombia
Citation
Revista Colombiana de Ciencias Pecuarias, 2018, 31, 3, pp 204-212
AbstractFull Text

The aim was to assess differences among Brown Swiss (BS), Holstein (HO), BS × HO and HO × BS cows. Age (AFC) and weight at first calving (WFC) were analyzed with a simple model that included sire within breed group (SIRE) as a random effect, and breed group (BG), calving year (CY) and calving...

Author(s)
Calderón-Robles, R. C.; Ríos-Utrera, A.; Vega-Murillo, V. E.; Montaño-Bermúdez, M.; Martínez-Velázquez, G.; Román-Ponce, S. I.; Calderón-Chagoya, R.
Publisher
Pakistan Agricultural Scientists Forum, Lahore, Pakistan
Citation
JAPS, Journal of Animal and Plant Sciences, 2017, 27, 6, pp 1816-1821
Abstract

The present study was carried out in 20 herds dedicated to cattle production with the objective of: 1 - To evaluate the prevalence of antibodies against infectious bovine rhinotracheitis (IBR) in non-vaccinated cows (N=359) from the States of Tabasco, Puebla and Veracruz, Mexico; 2 - To study the...

Author(s)
Ríos-Utrera, Á.; Rosete-Fernández, J. V.; Zárate-Martínez, J. P.; Fragoso-Islas, A.; Olazarán-Jenkins, S.; Granados-Zurita, L.; Banda-Ruiz, V. M.; Socci-Escatell, G. A.
Publisher
Facultad de Ciencias Veterinarias, Universidad del Zulia, Maracaibo, Venezuela
Citation
Revista Cientifica, Facultad de Ciencias Veterinarias, Universidad del Zulia, 2018, 28, 5, pp 349-359
Abstract

The prevalence (PRE) of antibodies against bovine viral diarrhea (BVD) was determined in 421 cows from 24 herds located in 11 Municipalities of the States of Puebla, Tabasco and Veracruz, Mexico. In addition, the influence of the presence of antibodies against bovine viral diarrhea on pregnancy...

Author(s)
Rosete Fernández, J. V.; Ríos Utrera, Á.; Zárate Martínez, J. P.; Olazarán Jenkins, S.; Granados Zurita, L.; Fragoso Islas, A.; Banda Ruiz, V. M.; Socci Escatell, G. A.
Publisher
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Mexico City, Mexico
Citation
Revista Mexicana de Ciencias Pecuarias, 2018, 9, 3, pp 555-566
Abstract

The objective was to evaluate the effect of some environmental factors on milk yield (per lactation, per day (d) and per calving interval), lactation length and reproduction (age and weight at first breeding, age at first calving, calving interval) of Holstein × Zebu and Brown Swiss × Zebu cows in...

Author(s)
Calderón-Chagoya, R.; Calderón-Robles, R. C.; Ríos-Utrera, Á.; Montaño-Bermúdez, M.; Lagunes-Lagunes, J.; Vega-Murillo, V. E.
Publisher
Facultad de Ciencias Veterinarias, Universidad del Zulia, Maracaibo, Venezuela
Citation
Revista Cientifica, Facultad de Ciencias Veterinarias, Universidad del Zulia, 2016, 26, 4, pp 239-246
Abstract

Data recorded from 1997 to 2009 by the Charolais-Charbray Herd Book of Mexico were analyzed with six different animal models to estimate genetic parameters for birth weight (n=105,599), weaning weight adjusted to 205 d (n=89,111) and yearling weight adjusted to 365 days (n=55,284). Model 1 included ...

Author(s)
Ríos Utrera, Á.; Martínez Velázquez, G.; Vega Murillo, V. E.; Montaño Bermúdez, M.
Publisher
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Mexico City, Mexico
Citation
Revista Mexicana de Ciencias Pecuarias, 2012, 3, 3, pp 275-290
Abstract

The objective was to estimate (co)variance components and genetic parameters for birth weight, adjusted 205-day (d) weaning weight, and adjusted 365-d yearling weight of Mexican Indubrazil calves obtained from an experimental herd under tropical conditions. (Co)variance components and genetic...

Author(s)
Ríos-Utrera, Á.; Hernández-Hernández, V. D.; Amezcua-Manjarrez, E. V.; Zárate-Martínez, J. P.; Villagómez-Cortés, J. A.
Publisher
Facultad de Ciencias Veterinarias, Universidad del Zulia, Maracaibo, Venezuela
Citation
Revista Cientifica, Facultad de Ciencias Veterinarias, Universidad del Zulia, 2013, 23, 5, pp 440-447
AbstractFull Text

The objective of the present study was to determine the milk yield of Simmental-Zebu and Brown Swiss-Zebu cows with different proportions of Bos taurus genes. The study was carried out from 1985 to 2007 at the Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Playa Vicente...

Author(s)
Ríos-Utrera, Á.; Hernández-Hernández, V. D.; Amezcua-Manjarréz, E. V.; Zárate-Martínez, J. P.
Publisher
Estacion Experimental Fabio Baudrit Moreno, Alajuela, Costa Rica
Citation
Agronomía Mesoamericana, 2015, 26, 1, pp 17-25
Abstract

The aim of the present study was to estimate (co)variance components and genetic correlations of days open with milk yield per lactation, lactation length and metabolic weight in Holstein and Brown Swiss cows under subtropical conditions of Mexico. Cows were kept in an intensive rotational grazing...

Author(s)
Ríos-Utrera, Á.; Calderón-Robles, R. C.; Galavíz-Rodríguez, J. R.; Vega-Murillo, V. E.; Lagunes-Lagunes, J.
Publisher
Facultad de Ciencias Veterinarias, Universidad del Zulia, Maracaibo, Venezuela
Citation
Revista Cientifica, Facultad de Ciencias Veterinarias, Universidad del Zulia, 2015, 25, 1, pp 51-56

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