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Abstract

Data collected at the Korean Native cattle Improvement Centre and at national and provincial testing stations were analysed using derivative-free Restricted Maximum Likelihood and BLUP animal model estimations. The direct and maternal h2s were 0.24 and 0.15 respectively for birth weight, and 0.51...

Author(s)
Kim, N. S.; Lee, D. H.; Won, Y. S.; An, B. S.; Jo, B. D.; Na, G. J.
Citation
Korean Journal of Animal Science, 1996, 38, 1, pp 36-42
Abstract

The genetic parameters in growth traits in beef cattle and milk yield and fat percentage in dairy cattle were estimated utilizing the farming system research and extension approach to collect pedigree and management information. The results of the long-term study showed higher additive individual...

Author(s)
Sornthep, T.
Publisher
Institut National de la Recherche Agronomique (INRA), Montpellier, France
Citation
Proceedings of the 7th World Congress on Genetics Applied to Livestock Production, Montpellier, France, August, 2002. Session 25, 2002, pp 1-4
Abstract

This study estimated the genetic parameters for preweaning average daily gain (ADG) and the number of days to gain 160 kg (D160) in Nelore cattle. 39 409 calf records from 855 sires, 19 627 dams, and 1930 contemporary groups were used. Heritability estimates (restricted maximum likelihood -...

Author(s)
Peña, C. D. O.; Carvalheiro, R.; Queiroz, S. A. de; Fries, L. A.
Publisher
Institut National de la Recherche Agronomique (INRA), Montpellier, France
Citation
Proceedings of the 7th World Congress on Genetics Applied to Livestock Production, Montpellier, France, August, 2002. Session 2, 2002, pp 0-4
Abstract

The aim of this study was to evaluate selection criteria in Gyr [Gir] cattle based on the traits such as average daily gain from birth to weaning (ADG) and number of days to gain 160 kg from birth to weaning (D160). Data from the Brazilian Association of Zebu Breeders of 16 592 calves, 507 sires,...

Author(s)
Muniz, C. A. S. D.; Queiroz, S. A.; Carvalheiro, R.; Fries, L. A.
Publisher
Institut National de la Recherche Agronomique (INRA), Montpellier, France
Citation
Proceedings of the 7th World Congress on Genetics Applied to Livestock Production, Montpellier, France, August, 2002. Session 2, 2002, pp 0-4
Abstract

Three different models including or not the direct and maternal non-additive effects and the fixed effects of contemporary group, parity order, direct and maternal heterosis and the direct and maternal additive genetic random effects were compared for predicting breeding values of pre-weaning daily ...

Author(s)
Bocchi, A. L.; Oliveira, H. N. de; Ferraz, J. B. S.; Eler, J. P.
Publisher
Sociedade Brasileira de Zootecnia, Viçosa, Brazil
Citation
Revista Brasileira de Zootecnia, 2008, 37, 7, pp 1207-1215
AbstractFull Text

Reaction Norm (RN) is the study of genotype-environment interaction (G × E) that complies with alternative ways of genotypes within different environments. This study was carried out to verify G × E by a reaction norm model of weights at 120 (W120) and 210 (W210) days of age in Nellore cattle...

Author(s)
Ferreira, J. L.; Lopes, F. B.; Lira, T. S. de; Garcia, J. A. S.; Lôbo, R. B.; Sainz, R. D.
Publisher
Universidade Estadual de Londrina, Londrina, Brazil
Citation
Semina: Ciências Agrárias (Londrina), 2015, 36, 4, pp 2787-2797

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