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El objetivo de este trabajo es mostrar los beneficios que se pueden obtener del uso de modelos de simulación utilizando como estudio de caso la cuantificación del impacto de nuevas alternativas forrajeras sobre el costo de producción de leche y sus implicaciones para la adopción tecnológica y la ...


Holmann, Federico J.[El uso de modelos de simulación como herramienta para la toma de decisiones en la promoción de nuevas alternativas forrajeras: El caso de Costa Rica y Perú = Using simulation models as a tool for promoting improved forages alternatives in Costa Rica and Peru]El uso de modelos de simulación como herramienta para la toma de decisiones en la promoción de nuevas alternativas forrajeras: El caso de Costa Rica y Perú = Using simulation models as a tool for promoting improved forages alternatives in Costa Rica and Peru

Using a simulation model as an analysis tool, the economic impact of spittlebugs in pastures of Colombia was quantified in terms of animal production. Three levels of abundance (10, 25, 50 adults/m2 ) and farm area affected (25, 50, 100%) were evaluated using data obtained in Brazil for Notozulia...


Holmann, Federico J.Peck, DC[Economic damage caused by spittlebugs (Homoptera: Cercopidae) in Colombia: A first approximation of impact on animal production in Brachiaria decumbens pastures]Economic damage caused by spittlebugs (Homoptera: Cercopidae) in Colombia: A first approximation of impact on animal production in Brachiaria decumbens pastures

Livestock production plays a key role in tropical Latin America in a changing economic environment. This study focuses on documenting the transformations of extensive production systems by using superior forage germplasm supplied by regional research systems. The adoption of improved Brachiaria ...


Holmann, Federico J.Rivas Ríos, LibardoArgel M., Pedro J.Pérez, E.[Impact of the adoption of Brachiaria grasses: Central America and Mexico]Impact of the adoption of Brachiaria grasses: Central America and Mexico
Lentes, PHolmann, Federico J.Peters, MichaelWhite, D.[Constraints, feeding, strategies and opportunities to improve productivity and income in milk production systems in Olancho, Honduras]Constraints, feeding, strategies and opportunities to improve productivity and income in milk production systems in Olancho, Honduras
Lentes, PPeters, MichaelHolmann, Federico J.[Regionalization of climatic factors and income indicators for milk production in Honduras]Regionalization of climatic factors and income indicators for milk production in Honduras

Objectives of this study were to compare costs and expected benefits of feed supplementation in cattle with alternative shrub legumes during the dry season using as a case study the hillsides of Central Nicaragua. The information used was gathered in a survey of 32 farms in the states of Boaco a...


Holmann, Federico J.Tiemann, Tassilo T.[Simulation of costs and benefits of supplementing milking cows with legumes during the dry season in two hillside regions of Nicaragua]Simulation of costs and benefits of supplementing milking cows with legumes during the dry season in two hillside regions of Nicaragua

The objectives were to: (1) identify and quantify the effect of technological change on productivity, profitability, and competitiveness in different milk production systems and regions of the country; (2) analyze the relationship between productivity, technological change, profitability, and com...


Holmann, Federico J.Rivas Ríos, LibardoCarulla, Juan E.Rivera, BGiraldo, L.A.Guzmán Perez, S.Martínez, M.Medina, A.Farrow, Andrew[Evolution of milk production systems in Tropical Latin America and its interrelationship with markets : An analysis of the Colombian case]Evolution of milk production systems in Tropical Latin America and its interrelationship with markets : An analysis of the Colombian case

The early adoption of the legume Arachis pintoi was studied in the State of Caquetá, located in Colombia’s Amazon region. Data came from 174 farmers randomly surveyed within the area of influence of Nestlé, a multinational milk-processing company. In addition, 52 farmers who had already adopted ...


Rivas Ríos, LibardoHolmann, Federico J.[Early adoption of Arachis pintoi in the humid tropics: The case of dual-purpose livestock systems in Caquetá, Colombia]Early adoption of Arachis pintoi in the humid tropics: The case of dual-purpose livestock systems in Caquetá, Colombia

Smallholders with dual-purpose cattle production systems in most Central America experience a shortage of forages during the dry season (4-8 month. As a result, substantially lower milk production and weight gain occurs. Dual-purpose operations seeking to maximize milk and beef production in the ...


Schoonhoven, Aart vanHolmann, Federico J.Argel M., Pedro J.Pérez, E.Ordoñez, J.C.Chaves, J.[Estimation and comparison of benefits due to feeding hay and silage during the dry season on commercial dual-purpose cattle production systems in Honduras and Costa Rica]Estimation and comparison of benefits due to feeding hay and silage during the dry season on commercial dual-purpose cattle production systems in Honduras and Costa Rica
Holmann, Federico J.[Evaluación económica de sistemas de producción de leche en el trópico]Evaluación económica de sistemas de producción de leche en el trópico

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