Application of the logistic model to describe the growth curve in dogs of different breeds


Sandra Posada O
Luis Gomez O
Ricardo Rosero N


Objective. To model the growth in dogs of different size and breeds that during their development showed a relative body weight according to the standards of their racial group. Materials and methods. The data used were obtained from the Canine Research Center (CIC), property of Empresa Solla S.A., located in the municipality of Rionegro (Antioquia, Colombia). The parameters of the growth curve were defined based on the logistic model using the procedure PROC NLIN of the SAS. Results. The adult weight (a) ranged from 2.12 Kg (York Shire Terrier) to 32.88 Kg (Weimaraner). For small, medium and large breeds, growth rates (1/b) during the exponential phase ranged between 9.91-18.91%, 9.12-13.83% and, 8.17-14.38%, respectively, and the average age at which 50% of the adult weight was reached (x0) was 3.49±0.03, 4.21±0.42 y 5.27±0.86 months, correspondingly. Large dog breeds reached maturity (T99) later than smaller breeds, 14.37±1.79 vs. 9.46±1.63 mo. Conclusions. The logistic model was able to describe the growth in dogs of different size, however, a larger sample size will improve its predictive ability, given the individual variability that characterizes growth.

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Referencias / Ver

Trangerud C, Grøndalen J, Indrebø A, Tverdal A, Ropstad E, Moe L. A longitudinal study on growth and growth variables in dogs of four large breeds raised in domestic environments. J Anim Sci 2007; 85:76-83.

Case LP, Carey DP, Daristotle L, Hayek MG, Raasch MF. Development and Treatment of Obesity. Canine and Feline Nutrition, 3th edición. USA: Mosby Elsevier; 2011.

Hawthorne AJ, Booles D, Nugent PA, Gettinby G, and Wilkinson J. Body-Weight Changes during Growth in Puppies of Different Breeds. J Nutr 2004; 134:2027S–2030S.

National Research Council -.NRC. Nutrient requirements of dogs and cats. 1a ed. Washington, D.C: National Academy Press; 2006.

German AJ. The Growing Problem of Obesity in Dogs and Cats. J Nutr 2006; 136:1940S-1946S.

Ulloa JTI, Rodríguez JAC. El modelo logístico: Una alternativa para el estudio del crecimiento poblacional de organismos. REDVET [en línea] 2010; [fecha de acceso 15 de septiembre de 2013]; 11(3). URL disponible en:

American Kennel Club. AKC Breeds complete breed list. [en línea] AKC: 2012; [acceso 30 de septiembre de 2013]. URL disponiblen en:

SAS/STAT: User guide version [programa de ordenador]. Versión 9.1.3. Cary (NC): SAS Institute Incorporation; 2003.

Kuhi HD, Porter T, Lopez S, Kebread E, Strathe AB, Dumas A, Dijkstra J, France J. A review of mathematical functions for the analysis of growth in poultry. World Poultry Sci J 2010; 66:227-240.

Malhado CHM, Ramos AA, Carneiro PLS, Souza JC, Wechsler FS, Eler JP, Azevêdo DMMR, Sereno JRB. Nonlinear models to describe the growth of the buffaloes of murrah breed. Arch Zootec 2008; 57:497-503.

Sarmento JLR, Regazzi AJ, Souza WH. Estudo da curva de crescimento de ovinos Santa Inês. Rev Bras Zootec 2006; 35:435-442.

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