Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/27403
Title: Phenotypic, environmental and genetic associations between health and growth in the pig
Contributor(s): Guy, S Z Y  (author)orcid ; Li, L  (author)orcid ; Thomson, P C (author); Hermesch, Susanne  (author)orcid 
Publication Date: 2018
Handle Link: https://hdl.handle.net/1959.11/27403
Related DOI: 10.1071/ANv58n8abs
Abstract: Genetic improvement of multiple production traits is widely achieved in pig breeding. However, there have been claims that selection for productivity alone has been detrimental to pig health (Prunier et al. 2010). This study aims to explore the phenotypic, environmental and genetic relationships between health and growth of the pig. Performance records from 1998 to 2013 (n = 31,230) and medication records from 2011 to 2016 (n = 812) were obtained from a herd of Large White pigs from the University of Queensland piggery in Gatton, QLD. Average daily gain (ADG) was calculated when pigs were at the average end weight of 90 kg and age of 128 days. A health trait was derived using medication status, with 0 as not medicated (good health) and 1 as medicated (poor health) (Guy et al. 2018). The association between ADG and health was explored on 3 levels: 1) phenotypically, using multiple regression to model ADG, with the predictor variables of sex, health status, numbers born alive in the litter, season and birth-month contemporary group; 2) environmentally, using Pearson's correlation between the frequency of medication and the environment, which was quantified through contemporary group estimates of ADG (Guy et al. 2017); and 3) genetically, by fitting a bivariate sire model in ASReml (Gilmour et al. 2009).
Publication Type: Conference Publication
Conference Details: Animal Production 2018: 32nd Biennial Conference of the Australian Society of Animal Production, Wagga Wagga, Australia, 2nd - 4th July, 2018
Source of Publication: Animal Production Science, 58(8), p. v-v
Publisher: CSIRO Publishing
Place of Publication: Australia
ISSN: 1836-5787
1836-0939
Fields of Research (FoR) 2008: 070201 Animal Breeding
Fields of Research (FoR) 2020: 300305 Animal reproduction and breeding
Socio-Economic Objective (SEO) 2008: 830308 Pigs
Socio-Economic Objective (SEO) 2020: 100410 Pigs
Peer Reviewed: Yes
HERDC Category Description: E3 Extract of Scholarly Conference Publication
Publisher/associated links: http://www.asap.asn.au/2018-conference/
Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
Conference Publication

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