Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10495/10750
Título : Descripción de la curva de crecimiento en búfalos (Bubalus bubalis Artiodactyla, Bovidae) mediante modelos aditivos mixtos generalizados con suavizaciones
Autor : Barrera Rivera, Diana Carolina
Agudelo, Divier Antonio
Cerón Muñoz, Mario Fernando
Pineda Sierra, Sebastián
Mazo, M.
metadata.dc.subject.*: Ganado Bufalino
Bufalo cattle
Suavización
Smoothing
Aumento de peso
Weight gain
Fecha de publicación : 2014
Editorial : Centro para la Investigación en Sistemas Sostenibles de Producción Agropecuaria, Cali, Colombia
Citación : Barrera D, Agudelo D, Cerón M, Pineda S, Mazo M. Descripción de la curva de crecimiento en búfalos (Bubalus bubalis Artiodactyla, Bovidae) mediante modelos aditivos mixtos generalizados con suavizaciones. Livestock Research for Rural Development. 2014; 26(8).
Resumen : The methodology of generalized additive models with smooth functions (GAMs) is an alternative to describe the growth curve because it is precise and adjusted to the nature of data. The aim of this study was to describe body weight growth in buffaloes using GAMs. One hundred twenty-four thousand two hundred sixty-four records of body weight at birth, weaning, 12, 24, and 36 months of age were used. The records were collected from 30,654 female and crossbred male buffaloes from four dual-purpose farms located in Córdoba, Colombia. The model included the random effect of animal within farm and the fixed effects of farm, weighing month, year of birth and age as a smoothed function. Both fixed and random effects were statistically significant (p < 0.05) for both sexes. The smoothed age effect was also significant (p < 0.001). The highest growth rate occurred during the period between birth and weaning. The weight average for males and females were 164 ± 9.7 kg and 160 ± 14.6 kg at weaning, 214 ± 9.6 kg and 206 ± 13.2 at one year, 376 ± 10.2 kg and 333 ± 16.1kg at two years and 493 ± 7 kg and 435 ± 13.1 kg at three years of age. It is concluded that GAMs can be a good alternative to model the growth curve in buffaloes.
ISSN : 01213784 E
Aparece en las colecciones: CIAG (Centro de investigaciones Agrarias)

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