Study of the crossbreed kids growth in the State of Rio de Janeiro

Main Article Content

Luís Fernando Dias Medeiros
Debora Helena Vieira
Natália Carmo Passos
Priscilla Maria Peixoto Patrício
Diego Custodio de Souza
Érica Cristina Xisto da Costa
Edson Kazuo Yogui
Marcus Vinícius da Fonseca

Abstract

ABSTRACT. Medeiros L.F.D., Vieira D.H., Passos N.C., Patrício P.M.P., de Souza D.C., da Costa E.C.X., Yogui E.K. & da Fonseca M.V. [Study of the crossbreed kids growth in the State of Rio de Janeiro]. Estudo do crescimento de cabritos mestiços na região metropolitana no Estado do Rio de Janeiro. Revista Brasileira de Medicina Veterinária, 34(1):35-46, 2012. Departamento de Reprodução e Avaliação Animal, Instituto de Zootecnia, UFRRJ, BR 465 km 07, Seropédica, RJ 23851-970, Brasil. E-mail: diasmedeiros@yahoo.com.br Nighty ½ Saanen + ½ Alpine, ½ Anglo-nubian + ½ Saanen and ½ Anglo-nubian + ½ Alpine, were used to compare the growth of goats raised in a semi-intensive system. Average weights at birth were 3.80kg for ½ Saanen + ½ Alpine, 4.07kg for ½ Anglo-nubian + ½ Saanen and 4.02kg for ½ Anglo-nubian + ½ Alpine. Average weights at weaning at 84 days of age were 15.15, 16.15 and 15.99kg for ½ Saanen + ½ Alpine, ½ Anglo-nubian + ½ Saanen and ½ Anglo-nubian + ½ Alpine, respectively. Average weights at slaughter at 168 days of age were 24.71kg for ½ Saanen + ½ Alpine, 26.47kg for ½ Anglo-nubian + ½ Saanen and 26.19kg for ½ Anglo-nubian + ½ Alpine. There was a significative difference (P<0.05) between the genetic groups, respecting to weights, in all the study stages (birth weights, weaning and slaughter). The birth weights, at weaning and at slaughter were significant influenced (P<0.05) by the birth type and kids sex. Daily average weight gains until weaning were 135.12, 143.81 and 142.50g/day and in the post weaning period were 113.81, 122.86 and 121.43g/day, respectively, for ½ Saanen + ½ Alpine, ½ Anglo-nubian + ½ Saanen and ½ Anglo-nubian + ½ Alpine. High and positive correlation between birth weight and weaning weight (r = 0.832) and birth weight and weight gain until weaning (r = 0.847) were observed. Mortality rates observed from birth to weaning and from weaning to slaughter were, respectively, 5.9 and 3.5% for ½ Saanen + ½ Alpine, 6.3 and 2.5% for ½ Anglo-nubian + ½ Saanen, and 6.8 and 2.0% for ½ Anglo-nubian + ½ Alpine.

Article Details

How to Cite
Medeiros, L. F. D., Vieira, D. H., Passos, N. C., Patrício, P. M. P., de Souza, D. C., da Costa, Érica C. X., Yogui, E. K., & da Fonseca, M. V. (2012). Study of the crossbreed kids growth in the State of Rio de Janeiro. Brazilian Journal of Veterinary Medicine, 34(1), 35–46. Retrieved from http://rbmv.org/index.php/BJVM/article/view/689
Section
Scientific articles

Most read articles by the same author(s)