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Abstract

The objective of this study was to evaluate genetic diversity of seven Mexican beef cattle populations, using pedigree analyses. The analyses were carried out with the Endog software, using information of the registered animals on national herd-book of each breed. The size of the populations...

Author(s)
Ramírez-Valverde, R.; Delgadillo-Zapata, A. R.; Domínguez-Viveros, J.; Hidalgo-Moreno, J. Á.; Núñez-Domínguez, R.; Rodríguez-Almeida, F. A.; Reyes-Quiroz, C.; García-Muñiz, J. G.
Publisher
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Mexico City, Mexico
Citation
Revista Mexicana de Ciencias Pecuarias, 2018, 9, 4, pp 614-635
Abstract

The objectives were to estimate variance components, and direct (h2) and maternal (m2) heritability in the growth of Tropicarne cattle based on a random regression model using B-Splines for random effects modeling. Information from 12 890 monthly weightings of 1787 calves, from birth to 24 months...

Author(s)
Domínguez-Viveros, J.; Rodríguez-Almeida, F. A.; Nuñez-Domínguez, R.; Ramírez-Valverde, R.; Ortega-Gutiérrez, J. A.; Ruiz-Flores, A.
Publisher
Facultad de Medicina Veterinaria y Zootecnia, Universidad Autonoma de Yucatan, Yucatan, Mexico
Citation
Tropical and Subtropical Agroecosystems, 2015, 18, 1, pp 27-32
Abstract

Pedigree analysis is an important tool to describe the genetic variability and its evolution through generations. The objective was to estimate genetic distances and to analyze the possible genetic differentiation through Mexican fighting bull herds. The pedigree including 58826 animals from 110...

Author(s)
Domínguez-Viveros, J.; Ortega-Gutiérrez, J. Á.; Rodríguez-Almeida, F. A.; Cárdenas-Rivera, J. A.
Publisher
Instituto de Ecología, A.C., Xalapa, Mexico
Citation
Acta Zoologica Mexicana, 2014, 30, 3, pp 610-616
Abstract

The aims of this study were to estimate variance components; calculate heritability (h2) and genetic correlations (rg) predict breeding values (VG) and evaluate their trends over time. Behavior information was analyzed for four Mexican bullfighting ranches: Los Encinos (ENC), Montecristo (MCR), San ...

Author(s)
Domínguez-Viveros, J.; Rodríguez-Almeida, F. A.; Núñez-Domínguez, R.; Ramírez-Valverde, R.; Ruiz-Flores, A.
Publisher
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Mexico City, Mexico
Citation
Revista Mexicana de Ciencias Pecuarias, 2014, 5, 3, pp 261-271
Abstract

A precise quantification of maternal influence and genetic correlation between direct and maternal effects (rd-m) is important for the genetic evaluation of weaning weight (PD) in cattle. The aim of this study was to evaluate the effect of including sire × environment interaction (environments:...

Author(s)
Gallegos-Ramírez, R.; Ramírez-Valverde, R.; Núñez-Domínguez, R.; Ruíz-Flores, A.; Rodríguez-Almeida, F. A.
Publisher
Colegio de Postgraduados, Montecillo, Mexico
Citation
Agrociencia (Montecillo), 2011, 45, 6, pp 687-697
Abstract

In Mexico, weaning and yearling weights in herd of Hereford (HER) and Salers (SAL) breeds are measured at different ages. This information can be used to analyze growth by using nonlinear models (MNL); which is the objective of this study. In HER, 4,549 observations were analyzed of 1,910 animals...

Author(s)
Domínguez-Viveros, J.; Ortega-Gutiérrez, J. Á.; Rodríguez-Almeida, F. A.; Callejas-Juárez, N.; Guadalupe Aguilar-Palma, N.; Santillán-Moreno, E.
Publisher
Facultad de Ciencias Veterinarias, Universidad del Zulia, Maracaibo, Venezuela
Citation
Revista Cientifica, Facultad de Ciencias Veterinarias, Universidad del Zulia, 2014, 24, 5, pp 436-442
Abstract

The growth curve of cattle has a sigmoid shape that can be adjusted with random regression models. The objective of this study was to adjust a random regression model based on Legendre polynomials and to estimate components of variance and genetic parameters for data on growth of Tropicarne cattle. ...

Author(s)
Domínguez-Viveros, J.; Rodríguez-Almeida, F. A.; Nuñez-Domínguez, R.; Ortega-Gutiérrez, J. Á.; Ramírez-Valverde, R.; Santellano-Estrada, E.; Espinosa-Villavicencio, J. L.
Publisher
Colegio de Postgraduados, Montecillo, Mexico
Citation
Agrociencia (Montecillo), 2011, 45, 3, pp 325-337
Abstract

The objectives of the present study were to define statistical models for the national genetic evaluations of Salers (SL) and Brangus (BR) cattle, to estimate genetic parameters, and to predict genetic values (dgv=direct; mgv=maternal) and analyze their trends. The variables studied were the...

Author(s)
Domínguez-Viveros, J.; Rodríguez-Almeida, F. A.; Ortega-Gutiérrez, J. A.; Flores-Mariñelarena, A.
Publisher
Colegio de Postgraduados, Montecillo, Mexico
Citation
Agrociencia (Montecillo), 2009, 43, 2, pp 107-117
AbstractFull Text

The objectives were to study the reproductive performance, initiation of post-partum ovarian activity, response to restricted suckling, estrus synchronization, and conception rate using artificial insemination at a fixed time of Creole rodeo cows (C). In Chihuahua, México, during the summer 2008,...

Author(s)
Zárate-Martínez, J. P.; Ramírez-Godínez, J. A.; Rodríguez-Almeida, F. A.
Publisher
Estacion Experimental Fabio Baudrit Moreno, Alajuela, Costa Rica
Citation
Agronomía Mesoamericana, 2010, 21, 1, pp 121-130
Abstract

The objectives were to evaluate the integrity of the pedigree and the inbreeding levels, besides estimate population parameters. With the genealogical information of Spanish purebred horses (RCE) and the fighting bull (RTL) of Mexico, two pedigrees were constructed with 65,421 and 61,897 animals,...

Author(s)
Domínguez-Viveros, J.; Rodríguez-Almeida, F. A.; Ortega-Gutiérrez, J. Á.; Santellano-Estrada, E.
Publisher
Facultad de Ciencias Veterinarias, Universidad del Zulia, Maracaibo, Venezuela
Citation
Revista Cientifica, Facultad de Ciencias Veterinarias, Universidad del Zulia, 2012, 22, 5, pp 443-450

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