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Journal Article 2008-03-01

Autor: Holmann, Federico J. Tiemann, Tassilo T.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/823

Investigación en Agricultura
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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
Journal Article 2002

Autor: Holmann, Federico J.

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 ...

Enlace original: https://cgspace.cgiar.org/handle/10568/44299

Investigación en Agricultura
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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
Journal Article 2002

Autor: Holmann, Federico J. Peck, DC

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/43366

Investigación en Agricultura
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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
Journal Article 1999

Autor: Rivas Ríos, Libardo Holmann, Federico J.

The Caqueta region of Colombia is representative of the environmental and economic conditions prevailing in most of Colombia's Amazon region. The department of Caqueta, located in the Amazon River basin, occupies an area of 8.9 million hectares, most of it under jungle. The average annual rai...

Enlace original: https://cgspace.cgiar.org/handle/10568/29488

Investigación en Agricultura
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Rivas Ríos, Libardo ,  Holmann, Federico J. ,  [Adopcion temprana de Arachis pintoi en el tropico humedo: el caso de los sistemas ganaderos de doble proposito en el Caqueta, Colombia. (Early adoption of Arachis pintoi in the humid tropics: the case of dual purpose livestock systems in Caqueta, Colombia)] ,  Adopcion temprana de Arachis pintoi en el tropico humedo: el caso de los sistemas ganaderos de doble proposito en el Caqueta, Colombia. (Early adoption of Arachis pintoi in the humid tropics: the case of dual purpose livestock systems in Caqueta, Colombia)
Journal Article 2004

Autor: Holmann, Federico J. Rivas Ríos, Libardo Argel M., Pedro J. Pérez, E.

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 ...

Enlace original: https://cgspace.cgiar.org/handle/10568/43558

Investigación en Agricultura
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Holmann, Federico J. ,  Rivas Ríos, Libardo ,  Argel 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
Journal Article 2005

Autor: Lascano, Carlos E. Peters, Michael Holmann, Federico J.
Enlace original: https://cgspace.cgiar.org/handle/10568/43194

Investigación en Agricultura
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Lascano, Carlos E. ,  Peters, Michael ,  Holmann, Federico J. ,  [Arachis pintoi in the humid tropics of Colombia : A forage legume success story] ,  Arachis pintoi in the humid tropics of Colombia : A forage legume success story
Journal Article 2009-07-10

Autor: Bartl, K. Mayer, A.C. Gómez, C.A. Muñoz, E. Hess, H.D. Holmann, Federico J.

In four communities in the Peruvian Andes, 56 farmers were interviewed every three months over a period of one year. Information linked to milk and cattle production such as activities, inputs (labour, means of production, capital) and outputs (milk, cheese, animals) were recorded using a closed-...

Enlace original: https://cgspace.cgiar.org/handle/10568/369

Investigación en Agricultura
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Bartl, K. ,  Mayer, A.C. ,  Gómez, C.A. ,  Muñoz, E. ,  Hess, H.D. ,  Holmann, Federico J. ,  [Economic evaluation of current and alternative dual-purpose cattle systems for smallholder farms in the central Peruvian highlands] ,  Economic evaluation of current and alternative dual-purpose cattle systems for smallholder farms in the central Peruvian highlands
Journal Article 2008-04-15

Autor: Holmann, Federico J. Rivas Ríos, Libardo Pérez, E. Castro, C. Schuetz, P. Rodríguez, J.

The objectives of this study were to (1) describe the economic agents of the chain and their commercial and legal relationships; (2) identify the articulations between links, technological levels, indicators of efficiency, installed capacity (scale), and degrees of occupation; (3) characterize an...

Enlace original: https://cgspace.cgiar.org/handle/10568/853

Investigación en Agricultura
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Holmann, Federico J. ,  Rivas Ríos, Libardo ,  Pérez, E. ,  Castro, C. ,  Schuetz, P. ,  Rodríguez, J. ,  [The beef chain in Costa Rica: Identifying critical issues for promoting its modernization, efficiency and competitiveness] ,  The beef chain in Costa Rica: Identifying critical issues for promoting its modernization, efficiency and competitiveness
Journal Article 1999

Autor: Rivas Ríos, Libardo Holmann, Federico J.
Enlace original: https://cgspace.cgiar.org/handle/10568/1439

Investigación en Agricultura
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Rivas Ríos, Libardo ,  Holmann, Federico J. ,  [Adopción temprana de Arachis pintoi en el tropico húmedo: el caso de los sistemas ganaderos de doble propósito en Caquéta, Colombia] ,  Adopción temprana de Arachis pintoi en el tropico húmedo: el caso de los sistemas ganaderos de doble propósito en Caquéta, Colombia

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