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ABSTRACT: Milk production in the intertropical region has been based on the crossbreeding of Bos taurus taurus and Bos taurus indicus breeds generating high hybrid vigor individuals as the F1 with high productive, reproductive and resistance to the environment potential. The productive and reproductive milk performance of F1 Gyr x Holstein cows was tested in a warm climate dairy ranch in Cartago, Valle del Cauca, Colombia. Registers for age at first calving (AFC), calving interval (CI), milk production during lactation and lactation persistency in the double purpose bovine production, based on the crossbreeding of cebuínas and Holstein breeds and in milking system twice a day with calf and supplementation support per milking batch group were evaluated. The AFC average was 35.4±5.49 months; the CI was 455.9±129.8 days; milk production was 3306±922 kg for all population, with 2779.03±910.08 kg lactation productions in the first one, 2908.33±593.86 kg in the second one, 3051.30±485.89 kg in the third one, 3326.20±855.28 kg in the fourth one, 3570.44±803.47 kg in the fifth one, 4085.67±859.41 kg in the sixth one, 4234.95±1077.99 kg in the seventh one, and 4348.17±903.40 kg in the eighth one, with a 52.42±20.00% lactation persistency in general and 53.8±19.2% in the first lactation, 60.4±29.9% in the second, 50.8±12.5% in the third, 42.6±16.00% in the fourth, 52.6±16.7% in the fifth, 51.5±11.8% in the sixth, 51.8±12.3% in the seventh and 59.7±24.8% in the eighth. In conclusion the productive performance in F1 Gyr x Holstein cows in a double purpose system with calf support is satisfactory, and also the crossbreeding showed increase in milk production up to the eighth lactation.
References
Associação Brasileira dos Criadores de Gir Leiteiro –. ABCGIL. O Gir leitero hoje, 2012. Disponible en: http://www.girleiteiro.org.br/ novo/?desempenho Accesado en: 11/02/2012.
Bohmanova, J.; Misztal, I.; Tsuruta, S. et al. National genetic evaluation of milk yield for heat tolerance of United States Holsteins. Interbull Bulletin, v.33, p.160-162, 2005.
Campos, G.R.; Cubillos, C.; Rodas, A.G. Indicadores metabólicos en razas lecheras especializadas en condiciones tropicales en Colombia. Acta Agronómica, v.56, n.2, p.85-92, 2007.
Cerón-Muñoz, M.F.; Tonhati, H.; Costa, D. et al. Interação genótipo-ambiente em bovinos da raça Holandesa brasileiros e colombianos. Arch. Zootec, v.53, p.239-248, 2004.
Córdova-Izquierdo, A.; Saltijeral-Oaxaca, J.; Rodríguez-Ariza, G. et al. Comportamiento reproductivo de razas bovinas de carne europeas en condiciones de trópico húmedo mexicano. REDVET, v.6, n.11, 2005. Disponible en: http://www.veterinaria.org/revistas/redvet/ n111105.html Accesado en: 10/02/2012
Freitas, A.F.; Costa, C.N.; Menezes, C.R.A. et al. Programa de melhoramento da raça Girolando-teste de progênie: sumario de touros 2008 (documentos, 126). 1.ed. Juiz deFora, Brasil: Embrapa Gado de Leite, 2008. 20p.
Freitas, M.S. Utilização de modelos de regressão aleatória na avaliação genética de animais da raça Girolando. Viçosa, Brasil: Universidade Federal de Viçosa, 2003. 89p. Tesis (Doctorado en Zootecnia).
GIROLANDO – Associação Brasileira dos Criadores de Girolando–. Relatório de lactações encerradas, 2012a. Disponible en: http://www. girolando.com.br/index.php?paginasSite/ controle,23 Accesado en: 10/02/2012.
GIROLANDO – Associação Brasileira dos Criadores de Girolando –. Girolando - a raça mais versátil do mundo tropical, 2009b. Disponible en: http://www.girolando.com.br/ site/ogirolando/performance.php Accesado en: 10/02/2012.
Oliveira, T. Performance, 2012. Disponible en: http:// www.girolandomuquem.com.br/performance Accesado en: 10/02/2012.
Shahrbabak, M.M. Feasibility of random regression models for Iranian Holstein test day records. University of Guelph, Guelp, Canada, 1997. 138p. Thesis (PhD).
