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Abstract

The objective of this study was to determine methane (CH4) yield by crossbred cattle fed tropical grasses. A total of 66 individual determinations of dry matter intake (DMI) and 42 determinations of organic matter intake (OMI) in relation to the production of enteric CH4 were carried out. Methane...

Author(s)
Ku-Vera, J. C.; Valencia-Salazar, S. S.; Piñeiro-Vázquez, A. T.; Molina-Botero, I. C.; Arroyave-Jaramillo, J.; Montoya-Flores, M. D.; Lazos-Balbuena, F. J.; Canul-Solís, J. R.; Arceo-Castillo, J. I.; Ramírez-Cancino, L.; Escobar-Restrepo, C. S.; Alayón-Gamboa, J. A.; Jiménez-Ferrer, G.; Zavala-Escalante, L. M.; Castelán-Ortega, O. A.; Quintana-Owen, P.; Ayala-Burgos, A. J.; Aguilar-Pérez, C. F.; Solorio-Sánchez, F. J.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Agricultural and Forest Meteorology, 2018, 258, pp 3-7
Abstract

The paper provides an overview of the ruminant livestock systems in the mountainous regions of Latin America and how they relate to the agro-ecosystems in which they are found. Information is provided on cattle, sheep and goat systems and the important domestic and wild camelid species found from...

Author(s)
Rushton, J.
Publisher
Universidad Autónoma del Estado de México, Toluca, Mexico
Citation
Opportunities and challenges for smallholder ruminant systems in Latin America: resource management, food safety, quality and market access, 2008, pp 17-51
Abstract

Ruminant animals contribute significantly to methane emissions in tropical regions. Nonetheless, there are few facilities available in those regions of the world for in vivo measurement of methane production in cattle. The aim of the present work was to describe the design, construction and...

Author(s)
Canul Solis, J. R.; Piñeiro Vázquez, A. T.; Arceo Castillo, J. I.; Alayón Gamboa, J. A.; Ayala Burgos, A. J.; Aguilar Pérez, C. F.; Solorio Sánchez, F. J.; Castelán Ortega, O. A.; Lachica López, M.; Quintana Owen, P.; Ku Vera, J. C.
Publisher
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Mexico City, Mexico
Citation
Revista Mexicana de Ciencias Pecuarias, 2017, 8, 2, pp 185-191
Abstract

The presentation and spreading of zoonoses in the animal production systems are influenced by environmental, biological social, economical, technological and political factors. The peasant production systems in Mexico, is characterised by the use family working force, restricted economical...

Author(s)
Gutiérrez-Ruiz, E. J.; Zapata-Villalobos, D.; Sierra-Lira, E. M.
Publisher
Universidad Autónoma del Estado de México, Toluca, Mexico
Citation
Opportunities and challenges for smallholder ruminant systems in Latin America: resource management, food safety, quality and market access, 2008, pp 251-260
AbstractFull Text

The objective of the present study was to simulate the effect of the seasonal variation of climate on the nutritional value and dry matter yield of star grass and its capacity to support milk production alone or with concentrate supplementation in small-scale milk production systems in the tropical ...

Author(s)
Yong Angel, G.; Pires Silveira, V. C.; Avilés Nova, F.; Castelán Ortega, O. A.
Publisher
Centro de Ciências Rurais, Universidade Federal de Santa Maria, Santa Maria, Brazil
Citation
Ciência Rural, 2014, 44, 8, pp 1486-1493
Abstract

Tropical grasses are the primary nutrient resource for cattle production in the tropics, and they provide low-cost nutrients to cattle. However, its production is constrained by seasonal changes and quality; hence, appropriate usage of relatively inexpensive agricultural by-products is important to ...

Author(s)
Pedraza-Beltrán, P.; Estrada-Flores, J. G.; Martínez-Campos, A. R.; Estrada-López, I.; Rayas-Amor, A. A.; Yong-Angel, G.; Figueroa-Medina, M.; Avilés Nova, F.; Castelán-Ortega, O. A.
Publisher
Springer, Amsterdam, Netherlands
Citation
Tropical Animal Health and Production, 2012, 44, 2, pp 329-336
AbstractFull Text

Author(s)
Castelán-Ortega, O. A.; Estrada-Flores, J. G.; Espinoza-Ortega, A. M. J.; Sánchez-Vera, E.; Hernández-Ortega, M.; Rojas-Garduño, M. A.; Ambriz-Vilchis, V.
Publisher
Guangdong People's Publishing House, Guangzhou, China
Citation
Multifunctional grasslands in a changing world, Volume II: XXI International Grassland Congress and VIII International Rangeland Congress, Hohhot, China, 29 June-5 July 2008, 2008, pp 95
Abstract

In the highlands of Central Mexico a surplus of different forages is observed during the rainy season particularly weeds, which grow in maize fields. Weeds are widely used by farmers to feed dairy cattle. The objective of the present work was to determine the nutritive value of weeds, their content ...

Author(s)
Martínez-Loperena, R.; Castelán-Ortega, O. A.; González-Ronquillo, M.; Estrada-Flores, J. G.
Publisher
Facultad de Medicina Veterinaria y Zootecnia, Universidad Autonoma de Yucatan, Yucatan, Mexico
Citation
Tropical and Subtropical Agroecosystems, 2011, 14, 2, pp 525-536
Abstract

The objective of this work was to develop a Decision-Support System (DSS) in order to support the decision making process by campesino farmers of Central Mexico. Two biological models, one socioeconomic model and a survey database form the DSS. The CERES-Maize model simulated the yield response of...

Author(s)
Castelán-Ortega, O. A.; Fawcett, R. H.; Arriaga-Jordán, C.; Herrero, M.
Publisher
Elsevier Science Ltd, Oxford, UK
Citation
Agricultural Systems, 2003, 75, 1, pp 1-21
Abstract

This paper describes the functioning and validation of the Decision Support System (DSS) described in the first part of the paper. The DSS ran three case studies with different farm sizes that represent the range of farmers found in the Valley. The DSS results were validated against survey data for ...

Author(s)
Castelán-Ortega, O. A.; Fawcett, R. H.; Arriaga-Jordán, C.; Herrero, M.
Publisher
Elsevier Science Ltd, Oxford, UK
Citation
Agricultural Systems, 2003, 75, 1, pp 23-46

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