Heritability estimates for weight gain in Nellore in Mato Grosso state, using model of infinite dimension
DOI:
https://doi.org/10.36560/30201343Keywords:
beef cattle, genetic parameters, selectionAbstract
Abstract: We used 138,976 records of information of body weights ranging from 60 to 610 days of age, from 27,327 Nelore cattle of herds in the state of Mato Grosso. The random regression model with the covariance function of fourth order to describe the variability of the effects of additive genetic, animal and maternal permanent environment and maternal genetic effect and maternal, showed heritability estimates from 0.209 to 0.423 at the beginning by the end of the trajectory, respectively. There is enough genetic variability to promote genetic gain satisfactory performance for weight after weaning period the animals.
Keywords: beef cattle, genetic parameters, selection.
References
CYRILLO, J.N.S.G. Estimativas de funes de covariância para crescimento de machos Nelore utilizando modelos de regressão aleatória. 2003. 72f. Tese (Doutorado em Produo Animal) - Faculdade de Cicias Agrias e Veterinárias
DIAS, L.T.; ALBUQUERQUE, L.G.; TONHATI, H. Estimação de parâmetros genéticos para peso em diferentes idades para animais da raça Tabapuã Revista Brasileira de Zootecnia, v.35, n.5, p.1915-1925, 2006.
KIRKPATRICK, M., LOFSVOLD, D., BULMER, M. Analysis of the inheritance, selection and evolution of growth trajectories. Genetics, v.124, p.979-993, 1990.
MEYER, K. Estimating covariance functions for longitudinal data using random regression model. Genetics Selection Evolution, v.30, p.221-240, 1998.
MEYER, K. Estimative of covariance functions for growth of Australian beef cattle from a large set of field data. In: WORLD CONGRESS ON GENETICS APPLIED TO LIVESTOCK PRODUCTION, 7, 2002, Montpellier. Proceedings... Montpellier, 2002. I CD-ROM.
MEYER, K. WOMBAT Digging deep for quantitative genetic analyses by restricted maximum likelihood. In: World Congress on genetic applied to Livestock Production, 8, 2006, Belo Horizonte. Proceedings... Belo Horizonte, 2006, CD-ROM.
NOBRE, P.R.C.; MISZTAL, I.; TSURUTA, S. et al. Analyses of growth curves of Nellore cattle by multiple-trait and random regression models. Journal of Animal Science, v.81, n.4, p.918-926, 2003.
VALENTE, B. D.; SILVA, M. A.; SILVA, L. O. C.; BERGMANN, J.A.G.;PEREIRA, J.C.C.; FRIDRICH, A. B.; FERREIRA, I. C.; CORREA, G. S. S.Estruturas de covariância de peso em funo da idade de animais Nelore das regiões Sudeste e Centro-Oeste do Brasil, Arq. Bras. Med. Vet. Zootec., v.60, n.2, p.389-400, 2008.
Downloads
Published
How to Cite
Issue
Section
License
The journal reserves the right to make changes to the original rules, spelling and grammatical order, in order to keep the language of worship default, respecting, however, the style of the authors. The finals will be sent to authors. Articles published are the property of Scientific Electronic Archives magazine, becoming its total or partial reprint, subject to the express authorization of the direction of the journal. The original source of publication should be retained. The originals will not be returned to the authors. Opinions expressed by authors of articles are solely your responsibility.
This journal uses the License Creative Commons Atribuição 4.0 Internacional.
1.png)
