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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

A field study involving 7734 Holstein calves from eight large intensive dairy herds in northern Mexico (26° N; 24.2°C mean annual temperature; same location) was conducted to determine factors associated with early postnatal (one to 21-d of age) dairy calf mortality. The effects of season of birth, ...

Author(s)
Mellado, M.; Lopez, E.; Veliz, F. G.; Santiago, M. A. de; Macias-Cruz, U.; Avendaño-Reyes, L.; Garcia, J. E.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Livestock Science, 2014, 159, pp 149-155
Abstract

The aim of this study was to determine differences in residue elimination of amoxicillin (AMX) in cow's milk, after intramammary administration of a pharmaceutical preparation of AMX plus potassium clavulanate (CLV), either in healthy or in spontaneous cases of clinical mastitis, and following...

Author(s)
Martínez-Cortés, I.; Rosiles, R.; Gutierrez, L.; Díaz, D.; Sumano, H.
Publisher
Veterinary Solutions LLC, Apopka, USA
Citation
International Journal of Applied Research in Veterinary Medicine, 2014, 12, 3, pp 185-191
Abstract

The main objective of this study was to assess the effect of month of breeding on reproduction performance of Holstein heifers and cows inseminated with sex-sorted or conventional semen in a hot environment. Pregnancy per artificial insemination (P/AI; 64,666 services over an 8-year period) both in ...

Author(s)
Mellado, M.; Sepulveda, E.; Macias-Cruz, U.; Avendaño, L.; Garcia, J. E.; Veliz, F. G.; Rodríguez, A.
Publisher
Springer, Amsterdam, Netherlands
Citation
Tropical Animal Health and Production, 2014, 46, 1, pp 265-269
Abstract

This study was carried out in the municipality of Villaflores, Chiapas, Mexico, to determine genotypic and allelic frequencies of the leptin gene in exon 2 in dual purpose cattle. The polymorphism was observed by ARMS-PCR. 47 sires in active service in the production system were included in this...

Author(s)
Ruíz Sesma, B.; Herrera Haro, J. G.; Rojas Martinez, R. I.; Ruiz Hernández, H.; Mendoza Nazar, P.; Oliva Llaven, M. A.; Gutiérrez Miceli, F. A.; Aguilar Tipacamu, G.; Bautista Trujillo, G. U.; Ibarra Martínez, C. E.
Publisher
Veterinaria Organizacion S.L., Malaga, Spain
Citation
REDVET, 2009, 10, 12, pp 120901
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

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

The aim of this study was to characterize the lactation curves in F1 (Holstein × Zebu) dairy cows in a farm located in the humid tropic of Mexico. Lactation curves were modeled using four mathematical models (including the incomplete gamma function, Wilmink, Dijkstra and Ali and Schaeffer models)...

Author(s)
Vinay-Vadillo, J. C.; Villagómez-Cortés, J. A.; Acosta-Rodríguez, M. R.; Rocher, C.
Publisher
Maxwell Scientific Organization, Birmingham, UK
Citation
International Journal of Animal and Veterinary Advances, 2012, 4, 6, pp 370-377
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
Abstract

The purpose of this study was to characterize the socioeconomic and technological components present in dual purpose cattle in the area of Papaloapan, Veracruz, Mexico. A survey was designed, and semi-structured interviews with producers in the local livestock associations and cattle ranches of the ...

Author(s)
Vilaboa-Arroniz, J.; Díaz-Rivera, P.; Ruiz-Rosado, O.; Platas-Rosado, D. E.; González-Muñoz, S.; Juárez-Lagunes, F.
Publisher
Facultad de Medicina Veterinaria y Zootecnia, Universidad Autonoma de Yucatan, Yucatan, Mexico
Citation
Tropical and Subtropical Agroecosystems, 2010, 10, 1, pp 53-62

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