Please use this identifier to cite or link to this item: https://une.intersearch.com.au/unejspui/handle/1959.11/920
Title: Genetic correlations between steer and heifer, and between environments for measures of growth and live body composition in two tropical genotypes
Contributor(s): Barwick, S (author); Johnston, D (author); Wolcott, ML (author); Burrow, HM (author)
Publication Date: 2006
Handle Link: https://hdl.handle.net/1959.11/920
Abstract: The theory relating genetic difference between the sexes, genotype x sex interaction and thegenetic correlation between the sexes is described by Eisen and Legates (1966), wheregenotype x sex is considered a special case of genotype x environment interaction. It followsfrom this that a genetic correlation of less than one between the sexes is evidence both ofgenotype x sex interaction and of genetic difference between the sexes. By extension, this alsoholds for similar traits in different environments. Here, we present genetic correlations forcorresponding measures of steer and heifer growth and live body composition for two tropicalgenotypes that are important to beef production in tropical and sub-tropical Australia. The dataare from a project described by Burrow et al. (2003). The correlations provide insight into thepossible magnitude of genotype x environment and genotype x sex interactions whenenvironments differ markedly for the sexes. As in industry, steers were run in a more benignenvironment and finished in a feedlot, while heifers were run in typically harsher, tropicalenvironments.
Publication Type: Conference Publication
Conference Name: 8th World Congress on Genetics Applied to Livestock Production, Belo Horizonte, MG, Brazil, 13-18 August, 2006
Conference Details: 8th World Congress on Genetics Applied to Livestock Production, Belo Horizonte, MG, Brazil, 13-18 August, 2006
Source of Publication: Proceedings of the 8th World Congress on Genetics Applied to Livestock Production (8th WCGALP), p. 1-4
Publisher: SBMA: Brazilian Society of Animal Breeding [Sociedade Brasileira de Melhoramento Animal]
Place of Publication: Brazil
Field of Research (FOR): 070201 Animal Breeding
HERDC Category Description: E2 Non-Refereed Scholarly Conference Publication
Other Links: http://www.wcgalp8.org.br/
http://www.wcgalp8.org.br/wcgalp8/articles/paper/3_701-1641.pdf
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