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Abstract

Genetic trends are commonly used to verify genetic improvement; however, there are few reports on beef cattle in Mexico. Data from 1998 to 2013 from four Charolais bull breeding farms were examined to verify the genetic responses to different breeding management and selection criteria. Analysis...

Author(s)
Parra-Bracamonte, G. M.; Lopez-Villalobos, N.; Morris, S. T.; Sifuentes-Rincón, A. M.; Lopez-Bustamante, L. A.
Publisher
Springer, Amsterdam, Netherlands
Citation
Tropical Animal Health and Production, 2016, 48, 8, pp 1729-1738
Abstract

The genetic parameters for Brahman cattle under the tropical conditions of Mexico are scarce. Therefore, heritabilities, additive direct and maternal correlations, and genetic correlations for birth weight (BW) and 205 days adjusted weaning weight (WW205) were estimated in four Brahman cattle herds ...

Author(s)
Estrada-León, R. J.; Magaña-Monforte, J. G.; Segura-Correa, J. C.
Publisher
Springer, Amsterdam, Netherlands
Citation
Tropical Animal Health and Production, 2014, 46, 5, pp 771-776
Abstract

Prolactin (PRL), growth hormone (GH), and insulin-like growth factor-1 (IGF-1) are in hormone-response pathways involved in energy metabolism during thermoregulation processes in cattle. Objective herein was to study the association between single nucleotide polymorphisms (SNP) within genes of the...

Author(s)
Leyva-Corona, J. C.; Reyna-Granados, J. R.; Zamorano-Algandar, R.; Sanchez-Castro, M. A.; Thomas, M. G.; Enns, R. M.; Speidel, S. E.; Medrano, J. F.; Rincon, G.; Luna-Nevarez, P.
Publisher
Springer Berlin, Heidelberg, Germany
Citation
Tropical Animal Health and Production, 2018, 50, 8, pp 1913-1920
Abstract

An epidemiological study of risk factors for fetal losses was carried out on 62,403 high-yielding Holstein cows in 29 large highly technified dairy herds in northern Mexico (25°N; 23.5°C mean annual temperature). Multivariate multiple-group response model indicated that fetal losses between 43 and...

Author(s)
Mellado, M.; López, R.; Santiago, Á. de; Veliz, F. G.; Macías-Cruz, U.; Avendaño-Reyes, L.; García, J. E.
Publisher
Springer, Amsterdam, Netherlands
Citation
Tropical Animal Health and Production, 2016, 48, 6, pp 1247-1252
AbstractFull Text

The impact of technology adoption among farmers in developing countries has been an issue difficult to measure and interpret. Hence, research to improve production has been centered in technology that possible is not adequate for this region. The present review aims to utilize subjects such as...

Author(s)
Galina, C. S.; Turnbull, F.; Noguez-Ortiz, A.
Publisher
Scientific Research Publishing, Irvine, USA
Citation
Open Journal of Veterinary Medicine, 2016, 6, 1, pp 15-21
AbstractFull Text

Blood samples of 189 healthy Holstein cows classified as high-producers, low-producers, or dry cows, were collected with the purpose of establishing reference values for several biochemical analytes in Mexican dairy farms. Mean values were calculated for: (1) Energy profile: glucose, cholesterol,...

Author(s)
García, C. A. C.; Prado, F. M. G.; Galicia, L. L.; Borderas, T. F.
Publisher
FEPMVZ - Editora, Belo Horizonte, Brazil
Citation
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2017, 69, 2, pp 445-456
Abstract

The use and management of native grassland for dairy production during the rainy season was studied on two small-scale dairy farms in the highlands of central Mexico. Two stocking rates (2 and 4 cows/ha) and two levels of supplementation with commercial concentrate (4 and 6 kg/cow/day) under...

Author(s)
Sainz-Sánchez, P. A.; López-González, F.; Estrada-Flores, J. G.; Martínez-García, C. G.; Arriaga-Jordán, C. M.
Publisher
Springer, Amsterdam, Netherlands
Citation
Tropical Animal Health and Production, 2017, 49, 1, pp 179-186
Abstract

In arid and semi-arid zones, animal health and production are closely correlated with body conformation traits. These selected traits, in turn, allow livestock to adapt unfavorable soil and environmental conditions. The primary objective of this study was to perform a genome-wide association...

Author(s)
González, M. E.; González, V. M.; Montaño, M. F.; Medina, G. E.; Mahadevan, P.; Villa, C.; Villa, R.
Publisher
FUNPEC, Brazil
Citation
Genetics and Molecular Research, 2017, 16, 2, pp 16029597
Abstract

Breeding records, including 649 inseminations during fall and winter at a dairy farm in a subtropical area of Western Mexico (24°N; 24°C, mean annual temperature 24°C) were analyzed to document effects of sex-sorted semen from commercial Gyr bulls, estrus synchronization protocol, inseminator, sire ...

Author(s)
Mellado, M.; Coronel, F.; Estrada, A.; Ríos, F. G.
Publisher
Springer, Amsterdam, The Netherlands
Citation
Tropical Animal Health and Production, 2010, 42, 7, pp 1493-1496
Abstract

The effect of age at first calving (AFC) and breed type (BG) on cow length of productive life in the herd (LPL) and cumulative kilograms of calves weaned per cow (KWC) was studied. Data on 313 Brahman, 183 Nellore, and 269 crossbred cows (undefined crosses of European × Zebu cattle) born from 1986...

Author(s)
Aranda-Avila, I.; Magaña-Monforte, J. G.; Segura-Correa, J. C.
Publisher
Springer, Amsterdam, Netherlands
Citation
Tropical Animal Health and Production, 2010, 42, 8, pp 1737-1741

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