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|Title:||Juvenile IGF-I Response in INRA RFI Selection Lines Partly Reflects Changes in Post-Weaning Attributes||Contributor(s):||Gilbert, H (author); Louveau, I (author); Billon, Y (author); Bunter, Kim L (author)||Publication Date:||2017||Open Access:||Yes||Handle Link:||https://hdl.handle.net/1959.11/23451||Open Access Link:||http://agbu.une.edu.au/AAABG%202017/128Gilbert2549.pdf||Abstract:||Performance data were recorded at INRA in two lines divergently selected for residual feed intake (RFI) for eight generations (G0 to G7). A subsample of piglets were bled shortly after weaning to establish concentrations of juvenile IGF-I. The line effect was clearly detected for juvenile IGF-I, confirming previous studies which found that juvenile IGF-I is an indirect early predictor of efficiency. The line difference in juvenile IGF-I was partly explained by differences between the RFI lines in their growth immediately after weaning, but remained significant after post-weaning growth was accounted for. Selection for efficiency has implications for postweaning management to limit feed deprivation and growth delays during the post-weaning period.||Publication Type:||Conference Publication||Conference Details:||22nd Conference of the Association for the Advancement of Animal Breeding and Genetics, Townsville, Australia, 2nd - 5th July, 2017||Source of Publication:||Proceedings of the Twenty-second (22nd) Conference of the Association for the Advancement of Animal Breeding, v.22, p. 549-552||Publisher:||AAABG: Association for the Advancement of Animal Breeding and Genetics||Place of Publication:||Fitzroy, Australia||ISSN:||1328-3227||Field of Research (FoR) 2008:||070201 Animal Breeding||Field 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:||E1 Refereed Scholarly Conference Publication||Other Links:||http://www.aaabg.org/aaabghome/
|Appears in Collections:||Animal Genetics and Breeding Unit (AGBU)|
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