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Performance of beef cattle herds under different pasture and management systems in the Llanos of Colombia.
(Technical University of Berlin, 1988)
Influencia de los factores genéticos y ambientales en caracteres productivos y reproductivos de la raza criolla colombiana Romosinuano
(Universidad Agraria de la Habana, 2004)
On the prevalence importance and control of helminths in cattle in Colombia.
(UNIVERSITY OF WISCONSIN, 1968)
A simulation analysis of policies for the northern Colombia beef cattle industry.
(Michigan State University, 1974)