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Journal Article 2001

Autor: Holloway, G.J. Dorfman, J.H Ehui, Simeon K.

Data augmentation is a powerful technique for estimating models with latent or missing data, but applications in agricultural economics have thus far been few. This paper showcases the technique in an application to data on milk market participation in the Ethiopian highlands. There, a key impedi...

Enlace original: https://cgspace.cgiar.org/handle/10568/32867

Investigación en Agricultura
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Holloway, G.J. ,  Dorfman, J.H ,  Ehui, Simeon K. ,  [Tobit estimation with unknown point of censoring with an application to milk-market participation in the Ethiopian highlands] ,  Tobit estimation with unknown point of censoring with an application to milk-market participation in the Ethiopian highlands
Journal Article 2003

Autor: Thornton, Philip K. Galvin, K.A. Boone, Randall B.

East Africa contains areas with some of the greatest large mammal biodiversity on the planet. These areas are key natural resources for the economic development of the region. They are also key areas for pastoralists who have co-existed with wildlife for millennia. Increasing populations, conflic...

Enlace original: https://cgspace.cgiar.org/handle/10568/29999

Investigación en Agricultura
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Thornton, Philip K. ,  Galvin, K.A. ,  Boone, Randall B. ,  [An agro-pastoral household model for the rangelands of East Africa] ,  An agro-pastoral household model for the rangelands of East Africa
Journal Article 2001

Autor: Ahmed, M.M. Preckel, P. Baker, T.G. López Pereira, M.

This study develops and demonstrates procedures for modeling the impact of agricultural technology adoption decisions on consumption and nutrition in a subsistence-farming context. The method is based on expected direct utility maximization (EDUM) formulation and incorporates subsistence quantiti...

Enlace original: https://cgspace.cgiar.org/handle/10568/29995

Investigación en Agricultura
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Ahmed, M.M. ,  Preckel, P. ,  Baker, T.G. ,  López Pereira, M. ,  [Modeling the impact of technological change on nutrition and marketed surplus] ,  Modeling the impact of technological change on nutrition and marketed surplus
Journal Article 2005

Autor: Riley, S. Carabin, H. Marshall, C. Olveda, R. Willingham, A.L. McGarvey, S.T.

A dynamic model of Schistosoma japonicum transmission is presented that incorporates effects of infection intensity, age, and sex. We use four infection intensity classes to investigate the impact of ecologic changes and public health interventions on the burden of infection within communities. A...

Enlace original: https://cgspace.cgiar.org/handle/10568/30040

Investigación en Agricultura
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Riley, S. ,  Carabin, H. ,  Marshall, C. ,  Olveda, R. ,  Willingham, A.L. ,  McGarvey, S.T. ,  [Estimating and modeling the dynamics of the intensity of infection with Schistosoma japonicum in villagers of Leyte, Philippines. Part II: Intensity-specific transmission of S. japonicum. The schistosomiasis transmission and ecology project] ,  Estimating and modeling the dynamics of the intensity of infection with Schistosoma japonicum in villagers of Leyte, Philippines. Part II: Intensity-specific transmission of S. japonicum. The schistosomiasis transmission and ecology project
Journal Article 2000

Autor: Kahi, A.K. Thorpe, W.R. Nitter, G. Baker, R.L.

Crossbreeding parameters for milk production and reproductive traits and for cow live weight (LW) of crosses of Ayrshire (A), Brown Swiss (B), Friesian (F) and Sahiwal (S) cattle were estimated using data from a dairy herd in the lowland coastal tropics of Kenya. An individual animal model was fi...

Enlace original: https://cgspace.cgiar.org/handle/10568/29192

Investigación en Agricultura
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Kahi, A.K. ,  Thorpe, W.R. ,  Nitter, G. ,  Baker, R.L. ,  [Crossbreeding for dairy production in the lowland tropics of Kenya. I. Estimation of individual crossbreeding effects on milk production and reproductive traits and on cow live weight] ,  Crossbreeding for dairy production in the lowland tropics of Kenya. I. Estimation of individual crossbreeding effects on milk production and reproductive traits and on cow live weight
Journal Article 2001

Autor: Vargas, B. Herrero, Mario T. Arendonk, Johan A.M. van

A dynamic performance model was integrated with a model that optimised culling and insemination policies in dairy herds using dynamic programming. The performance model estimated daily feed intake, milk yield and body weight change of dairy cows on the basis of availability and quality of feed an...

Enlace original: https://cgspace.cgiar.org/handle/10568/29197

Investigación en Agricultura
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Vargas, B. ,  Herrero, Mario T. ,  Arendonk, Johan A.M. van ,  [Interactions between optimal replacement policies and feeding strategies in dairy herds] ,  Interactions between optimal replacement policies and feeding strategies in dairy herds
Journal Article 2003

Autor: Lesnoff, Matthieu Ezanno, P. Caswell, H.

Periodic matrix population models are a useful approach to modelling cyclic variations in demographic rates. Caswell and Trevisan [1] introduced the perturbation analysis (sensitivities and elasticities) of the per-cycle population growth rate for such models. Although powerful, their method can...

Enlace original: https://cgspace.cgiar.org/handle/10568/29209

Investigación en Agricultura
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Lesnoff, Matthieu ,  Ezanno, P. ,  Caswell, H. ,  [Sensitivity analysis in periodic matrix models: A postscript to Caswell and Trevisan] ,  Sensitivity analysis in periodic matrix models: A postscript to Caswell and Trevisan
Journal Article 2002

Autor: Gitau, G.K. McDermott, John J. Perry, Brian D.

The association between serum antibody titres to Theileria parva in calves and potential explanatory factors were examined in a longitudinal observational study that was conducted in 5 cohorts of female calves with a total of 225 calves on 188 smallholder dairy farms. The farms were distributed i...

Enlace original: https://cgspace.cgiar.org/handle/10568/29300

Investigación en Agricultura
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Gitau, G.K. ,  McDermott, John J. ,  Perry, Brian D. ,  [Factors associated with Theileria parva infections in small-holder dairy farms in Murang'a District, Kenya] ,  Factors associated with Theileria parva infections in small-holder dairy farms in Murang'a District, Kenya
Journal Article 1996

Autor: Young, A.S. Dolan, T.T. Morzaria, S.P. Mwakima, F.N. Norval, R.A.I. Scott, J. Sherriff, A. Gettinby, G.

A large database on the transmission of a stabilate of the Theileria parva Muguga stock from one breed of cattle using two stocks of Rhipicephalus appendiculatus, Muguga and O1 Pejeta was developed and analysed. Factors associated with the ticks and cattle, and the infections developing in cattle...

Enlace original: https://cgspace.cgiar.org/handle/10568/29387

Investigación en Agricultura
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Young, A.S. ,  Dolan, T.T. ,  Morzaria, S.P. ,  Mwakima, F.N. ,  Norval, R.A.I. ,  Scott, J. ,  Sherriff, A. ,  Gettinby, G. ,  [Factors influencing infections in Rhipicephalus appendiculatus ticks fed on cattle infected with Theileria parva] ,  Factors influencing infections in Rhipicephalus appendiculatus ticks fed on cattle infected with Theileria parva
Journal Article 1995

Autor: Perry, Brian D. Young, A.S.

This paper reviews the past contributions of epidemiology and economics to the control of tick-borne infections of cattle in Africa. The factors affecting successful and unsuccessful control are evaluated on a gographical and on a production systems basis, with particular reference to Theileria p...

Enlace original: https://cgspace.cgiar.org/handle/10568/29512

Investigación en Agricultura
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Perry, Brian D. ,  Young, A.S. ,  [The past and future roles of epidemiology and economics in the control of tick-borne diseases of livestock in Africa: The case of theileriosis] ,  The past and future roles of epidemiology and economics in the control of tick-borne diseases of livestock in Africa: The case of theileriosis

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