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Abstract

This study aimed to determine the trends in milk production, fertility, temperature-humidity index (THI), and herd size in dairy herds from the Laguna region in northern Mexico. Records of 16 dairy herds of Holstein cows from January 2002 to December 2016 were used. Milk production was categorized...

Author(s)
Fernández, I. G.; Ulloa-Arvizu, R.; Fernández, J.
Publisher
Springer Berlin, Heidelberg, Germany
Citation
Tropical Animal Health and Production, 2019, 51, 1, pp 149-154
Abstract

The demand for milk and dairy products globally is expected to grow in future decades, leading to an increase in the global dairy cattle population. Therefore it is important to identify production options that both improve efficiency and help reduce negative effects on the environment. Intensive...

Author(s)
Esteban Rivera, J.; Chará, J.; Murgueitio, E.; JoséMolina, J.; Barahona, R.
Publisher
Centro Internacional de Agricultura Tropical (CIAT), Cali, Colombia
Citation
Tropical Grasslands - Forrajes Tropicales, 2019, 7, 4, pp 370-374
AbstractFull Text

A total of 245187 records of the first three lactations of 131126 Holstein cows in tropical conditions were used to estimate the genetic (co)variance components between age at calving and its respective milk productions. A multivariate analysis of six traits was performed. Heritability for age at...

Author(s)
Espinoza-Villavicencio, J. L.; Palacios-Espinosa, A.; Menendez-Buxadera, A.
Publisher
Islamic Azad University, Rasht, Iran
Citation
Iranian Journal of Applied Animal Science, 2019, 9, 3, pp 401-407
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

Recipient cow is the key to success in embryo transfer (ET) programs in cattle. Therefore, it is necessary to know the factors that influence on its reproductive potential. It is considered that multiparous cows have a better response to the ET program than nulliparous cows. The objective of this...

Author(s)
García y González, E. C.; Medel, G. M.; Pineda Burgos, B. C.; Romero Rodríguez, P. I.; Hernández Ruiz, P. E.; Vicente Pérez, R.; Valencia Franco, E.; Ponce, J. L.
Publisher
Instituto de Ciencia Animal, La Habana, Cuba
Citation
Cuban Journal of Agricultural Science, 2019, 53, 2, pp unpaginated
AbstractFull Text

The objective was to calculate the methane emission intensity due to enteric fermentation in four groups of small-scale dairy farms in the highlands of central Mexico with different feeding strategies, from equations of Tier 2 recommended by IPCC. Twenty-four farms were evaluated during one year by ...

Author(s)
Prospero-Bernal, F.; López-González, F.; Martínez-García, C. G.; Flores-Calvete, G.; Arriaga-Jordán, C. M.
Publisher
Asociación Interprofesional para el Desarrollo Agrario, Zaragoza, Spain
Citation
XVIII Jornadas sobre Producción Animal, Zaragoza, España, 7 y 8 de mayo de 2019, 2019, pp 48-50
Abstract

Bovine tuberculosis (bTB) is a disease of cattle that represents a risk to public health and causes severe economic losses to the livestock industry. Recently, genetic studies, like genome-wide association studies (GWAS) have greatly improved the investigation of complex diseases identifying...

Author(s)
González-Ruiz, S.; Strillacci, M. G.; Durán-Aguilar, M.; Cantó-Alarcón, G. J.; Herrera-Rodríguez, S. E.; Bagnato, A.; Guzmán, L. F.; Milián-Suazo, F.; Román-Ponce, S. I.
Publisher
MDPI AG, Basel, Switzerland
Citation
Animals, 2019, 9, 9, pp 636
Abstract

Data from 2438 calvings born to 682 cows recorded from 2004 to 2015 in an extensive production system were used, to investigate factors associated with abortion and calf mortality until weaning. Cows belonged to Brahman, Nellore, Guzerat and Brown Swiss × Zebu breed groups. Data were analyzed using ...

Author(s)
Segura-Correa, J. C.; Segura-Correa, V. M.; Magaña-Monforte, J. G.; Aké-López, J. R.
Publisher
Facultad de Medicina Veterinaria y Zootecnia, Universidad Autonoma de Yucatan, Yucatan, Mexico
Citation
Tropical and Subtropical Agroecosystems, 2018, 21, 3, pp 439-445
Abstract

Several studies suggest that reproductive performance in small-scale dairy farms is low reducing the farms' profitability. Therefore, identifying risk factors associated with low reproductive performance is a key step to implement an improved reproductive management program. Accordingly, the aim of ...

Author(s)
Montiel-Olguín, L. J.; Estrada-Cortés, E.; Espinosa-Martínez, M. A.; Mellado, M.; Hernández-Vélez, J. O.; Martínez-Trejo, G.; Ruiz-López, F. J.; Vera-Avila, H. R.
Publisher
Springer Berlin, Heidelberg, Germany
Citation
Tropical Animal Health and Production, 2019, 51, 1, pp 229-236
Abstract

In order to determine the in situ dry matter ruminal degradability of Spartina spartinae, a native species from Yucatan region, an experiment was carried out according to a completely randomized design, in which the plant was evaluated at 45 and 120 hours. The in sacco degradability technique was...

Author(s)
Sosa, A.; Ayala, A.; Galindo, J.; Rosado, C.; Capetillo, C.; Medina, D. V. y Y.
Publisher
CIPAV Foundation, Cali, Colombia
Citation
Livestock Research for Rural Development, 2019, 31, 1, pp Article 6

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