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Beef cow-calf production experiments on the savannas of eastern Colombia: effects of minerals, early weaning, crossbreeding, urea feeding, and pastures on herd production por Stonaker, Howard H., Raun, NS, Gómez Soler, Juvenal

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Production potential for ruminants in the lowland tropics of Latin America por Raun, NS

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Legumes and legume-grass asociation in the american tropics por Raun, NS

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