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Vol. 6 No. 1 (1998)

Published: 1998-06-30

Cover page

Cover
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Editor's Foreword

Editorial

Managing Editor

i-iv
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Original paper

Simulation model for evaluating sustainability of pastures on the high plains of Colombia I. Development and validation of the model

E. Brito, Claudio Aguilar, R. Cañas, Raul Vera

1-38
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Sustainability of Brachiaria dictyoneura in three contrasting soils of the Colombian high plains. II. Experimentation with a simulation model

E. Brito, C. Aguilar, R. Cañas, Raul Vera

39-58
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Use of mixed-model methodology to estimate genetic and environmental parameters for production traits in Caracu cattle

Celia Raquel Quirino, Jonas C. C. Pereira, José A. G. Bergmann, Carmen S. Pereira

59=70
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Genetic evaluation by animal model techniques of first lactation length and mean daily milk yield of the Caracu breed

Celia Raquel Quirino, J. C. Perer, C, S. Pereira, Jose A Bergmann

71-78
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Evaluation of accessions of Centrosema pubescens in dry regions of Zulia state, Venezuela

Jesus Faria-Marmol, Zuleima Chirinos, J. R. Faria, Ignacio Gonzalez

79-92
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Induction of ovulation of the first dominant follicle in postpartum beef cows

Giane Regina Paludo, Jose Ferrugen Moraes, Carlos Jose de Souza, Carlos Miguel Jaume, Cláudio Alvarenga de Oliveira

93-102
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Dairy systems in Bahía Blanca and Coronel Rosales, Argentina. 3. Gross Margins

Alfredo Osvaldo Gargano, Miguel A. Adúriz, María C. Saldungaray

103-113
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