Please use this identifier to cite or link to this item:
Title: Associations between sow body composition, feed intake during lactation and early piglet growth
Contributor(s): Bunter, Kim L  (author); Luxford, B G (author); Smits, R (author); Hermesch, Susanne  (author)orcid 
Publication Date: 2009
Handle Link:
Abstract: The genetic and phenotypic associations between sow body composition, early piglet growth and lactation feed intake (LFI) recorded during the first lactation were estimated using data collected from two maternal lines (N~2500). Heritability estimates for lactation feed intake, average piglet birth weight (ABW) and total born (TB) were 0.16±0.04, 0.27±0.03 and 0.10±0.04; genetic correlations between LFI and ABW or TB were positive but not significantly different to zero. Heritabilities for sow weight and fat depths prior to farrowing and at weaning ranged from 0.27 to 0.37 (±0.05) and within trait genetic correlations between these time points were less than one. Positive genetic (ra) and phenotypic (rp) correlations show that increased LFI is associated with higher sow weaning weight and fat depths (ra: 0.52±0.13 and 0.21±0.16; rp: 0.38±0.02 and 0.15±0.03) and higher litter gain (ra: 0.10±0.24, rp: 0.20±0.02). While correlations are not antagonistic between LFI and TB, ABW or litter gain, any correlated response in LFI to selection on these traits would be low.
Publication Type: Conference Publication
Conference Name: 18th Conference of the Association for the Advancement of Animal Breeding and Genetics, Barossa Valley, Australia, 27th September - 2nd October, 2009
Source of Publication: Proceedings of the 18th Conference of the Association for the Advancement of Animal Breeding and Genetics: Matching Genetics and Environment - a New Look at an Old Topic, p. 203-206
Publisher: AAABG: Association for the Advancement of Animal Breeding and Genetics
Place of Publication: Taringa, Australia
ISSN: 1328-3227
Field of Research (FOR): 070201 Animal Breeding
070202 Animal Growth and Development
070204 Animal Nutrition
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
Other Links:
Statistics to Oct 2018: Visitors: 195
Views: 451
Downloads: 0
Appears in Collections:Conference Publication

Files in This Item:
2 files
File Description SizeFormat 
Show full item record

Page view(s)

checked on Mar 8, 2019
Google Media

Google ScholarTM


Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.