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Abstract

The objective of this review is to provide an outlook of the main findings of the research associated with genetic evaluations of dairy cattle populations in Mexico, and to identify the work performed by researchers and opportunity areas for future research. The review included papers published in...

Author(s)
Larios-Sarabia, N.; Ramírez-Valverde, R.; Núñez-Domínguez, R.; García-Muñiz, J. G.
Publisher
Facultad de Medicina Veterinaria y Zootecnia, Universidad Autonoma de Yucatan, Yucatan, Mexico
Citation
Tropical and Subtropical Agroecosystems, 2019, 22, 2, pp 315-329
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

Background: Genetic variability of populations is essential for their genetic conservation and improvement, and genealogy analysis is a useful tool to estimate it. Objective: To determine genetic variability and inbreeding levels in Tropical Milking Criollo (LT). Methods: This study analyzed the...

Author(s)
Ponce, A. R.; Palacios Jiménez, A. L.; Rosales Martínez, F.; Torres Hernández, G.; Ramírez Valverde, R.; Becerril Pérez, C. M.
Publisher
Universidad de Antioquia, Medellín, Colombia
Citation
Revista Colombiana de Ciencias Pecuarias, 2018, 31, 3, pp 196-203
Abstract

Background: A concern for breeders is whether an animal ranking based on genetic evaluations is similar to that obtained from show-ring judging. Objective: to determine the association between rankings for Braunvieh (BR) and Brown Swiss (BS) cattle of Mexico based on show-ring judging and their...

Author(s)
Ramírez-Valverde, R.; Ramírez-Valverde, G.; Núñez-Domínguez, R.; Delgadillo-Zapata, R. A.; Hernández-León, M.
Publisher
Universidad de Antioquia, Medellín, Colombia
Citation
Revista Colombiana de Ciencias Pecuarias, 2016, 29, 1, pp 25-32
Abstract

Heritable abnormalities can cause a reduction in productive performance, structural defects, or death of the animal. There are reports of hereditary abnormalities in Braunvieh cattle from several countries, but no evidence was found on their existence in Mexico. In this study, 28 genes associated...

Author(s)
Zepeda-Batista, J. L.; Parra-Bracamonte, G. M.; Núñez-Domínguez, R.; Ramírez-Valverde, R.; Ruíz-Flores, A.
Publisher
Springer Berlin, Heidelberg, Germany
Citation
Tropical Animal Health and Production, 2019, 51, 1, pp 25-31
Abstract

This study inferred genetic and permanent environmental variation of milk yield in Tropical Milking Criollo cattle and compared 5 random regression test-day models using Wilmink's function and Legendre polynomials. Data consisted of 15,377 test-day records from 467 Tropical Milking Criollo cows...

Author(s)
Santellano-Estrada, E.; Becerril-Pérez, C. M.; Alba, J. de; Chang, Y. M.; Gianola, D.; Torres-Hernández, G.; Ramírez-Valverde, R.
Publisher
American Dairy Science Association, Savoy, USA
Citation
Journal of Dairy Science, 2008, 91, 11, pp 4393-4400
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

High salt concentration in drinking water on dairy cattle farms in the semiarid region of northern Mexico is a concern because it can negatively affect health and productive performance of dairy cows. The study was conducted to assess the effect of drinking water quality on feed intake, daily milk...

Author(s)
García-Muñiz, J. G.; Herrera-Monsalvo, C. D.; Lara-Bueno, A.; López-Ordaz, R.; Jaimes-Jaimes, J.; Ramírez-Valverde, R.
Publisher
Marsland Press, New York, USA
Citation
Life Science Journal, 2015, 12, 2s, pp 87-93
AbstractFull Text

Three random regression test day models, using Wilmink's function, first and second order Legendre polynomials, were used to fit lactation curves of the Tropical Milking Criollo (CLT) cattle. 9968 test-day records from 299 CLT cows located in the tropical low lands of the Gulf Coast of Mexico were...

Author(s)
Santellano-Estrada, E.; Alba, J. de; Chang, Y. M.; Gianola, D.; Ramírez-Valverde, R.; Becerril-Pérez, C. M.
Publisher
Instituto Prociência, Minas Gerais, Brazil
Citation
Proceedings of the 8th World Congress on Genetics Applied to Livestock Production, Belo Horizonte, Minas Gerais, Brazil, 13-18 August, 2006, 2006, pp 16-17
Abstract

The objective of this study was to determine the magnitude of genotype by climate interaction (GCI) in the national genetic evaluation for weaning (WW) and yearling (YW) weights of Mexican Braunvieh cattle. The numbers of performance records and animals in the pedigree were 12,364 and 25,173 for...

Author(s)
Saavedra-Jiménez, L. A.; Ramírez-Valverde, R.; Núñez-Domínguez, R.; García-Muñiz, J. G.; Lopez-Villalobos, N.; Ruíz-Flores, A.
Publisher
Springer, Amsterdam, Netherlands
Citation
Tropical Animal Health and Production, 2013, 45, 7, pp 1489-1494

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