Associations between feed intake of growing gilts, lactating sows and other reproductive or performance traits

Kim Louise Bunter; B G Luxford; Susanne Hermesch

Associations between feed intake of growing gilts, lactating sows and other reproductive or performance traits

Kim Louise Bunter
, B G Luxford
, Susanne Hermesch

Animal Genetics and Breeding Unit

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The genetic and phenotypic associations between performance and feed intake traits of finished gilts (GFI), along with their subsequent reproductive performance and feed intake during lactation (LFI), were estimated using data collected from two maternal lines recorded under the same management system. 'Ad-libitum' feed intake was heritable (h²: 0.33±0.08) when recorded in post-finisher gilts or during lactation (h²: 0.11±0.09). Genetic (ra) and phenotypic (rp) correlations between GFI and performance traits support the hypothesis that selection for reduced back fat (BF) and lower feed conversion ratio (FCR) are associated with a reduction in feed intake (ra: 0.36±0.11 and 0.79±0.11 for BF and FCR respectively). However, the correlations between GFI and measures of sow reproductive performance were lower (ranges: ra from -0.16 to 0.01; rp from -0.07 to 0.02). Current estimates of genetic and phenotypic correlations between GFI and LFI do not support the expectation of a positive association between these traits (ra: -0.26±0.33; rp: 0.05±0.04) although standard errors are large. More data are required to obtain accurate estimates of correlations between LFI and the other traits.

Original language	English
Title of host publication	Proceedings of the Seventeenth Conference for the Advancement of Animal Breeding and Genetics
Editors	AAABG: Association for the Advancement of Animal Breeding, Genetics
Place of Publication	Armidale, Australia
Publisher	Association for the Advancement of Animal Breeding and Genetics (AAABG)
Pages	57-60
Volume	17
ISBN (Print)	1921208139
Publication status	Published - 2007
Event	AAABG 2007: 17th Conference of the Association for the Advancement of Animal Breeding and Genetics - University of New England, Armidale, Australia Duration: 23 Sept 2007 → 26 Sept 2007

Conference

Conference	AAABG 2007: 17th Conference of the Association for the Advancement of Animal Breeding and Genetics
City	Armidale, Australia
Period	23/09/07 → 26/09/07

Keywords

Quantitative Genetics (incl Disease and Trait Mapping Genetics)

Access to Document

https://hdl.handle.net/1959.11/4148

Handle.net

Persistent link

Cite this

Bunter, K. L., Luxford, B. G., & Hermesch, S. (2007). Associations between feed intake of growing gilts, lactating sows and other reproductive or performance traits. In AAABG. Association for the Advancement of Animal Breeding, & Genetics (Eds.), Proceedings of the Seventeenth Conference for the Advancement of Animal Breeding and Genetics (Vol. 17, pp. 57-60). Association for the Advancement of Animal Breeding and Genetics (AAABG). https://hdl.handle.net/1959.11/4148

Bunter, Kim Louise ; Luxford, B G ; Hermesch, Susanne. / Associations between feed intake of growing gilts, lactating sows and other reproductive or performance traits. Proceedings of the Seventeenth Conference for the Advancement of Animal Breeding and Genetics. editor / AAABG: Association for the Advancement of Animal Breeding ; Genetics. Vol. 17 Armidale, Australia : Association for the Advancement of Animal Breeding and Genetics (AAABG), 2007. pp. 57-60

@inproceedings{f7aa27d5e0854ea2887582eb6140b36a,

title = "Associations between feed intake of growing gilts, lactating sows and other reproductive or performance traits",

abstract = "The genetic and phenotypic associations between performance and feed intake traits of finished gilts (GFI), along with their subsequent reproductive performance and feed intake during lactation (LFI), were estimated using data collected from two maternal lines recorded under the same management system. 'Ad-libitum' feed intake was heritable (h²: 0.33±0.08) when recorded in post-finisher gilts or during lactation (h²: 0.11±0.09). Genetic (ra) and phenotypic (rp) correlations between GFI and performance traits support the hypothesis that selection for reduced back fat (BF) and lower feed conversion ratio (FCR) are associated with a reduction in feed intake (ra: 0.36±0.11 and 0.79±0.11 for BF and FCR respectively). However, the correlations between GFI and measures of sow reproductive performance were lower (ranges: ra from -0.16 to 0.01; rp from -0.07 to 0.02). Current estimates of genetic and phenotypic correlations between GFI and LFI do not support the expectation of a positive association between these traits (ra: -0.26±0.33; rp: 0.05±0.04) although standard errors are large. More data are required to obtain accurate estimates of correlations between LFI and the other traits.",

keywords = "Quantitative Genetics (incl Disease and Trait Mapping Genetics)",

author = "Bunter, \{Kim Louise\} and Luxford, \{B G\} and Susanne Hermesch",

year = "2007",

language = "English",

isbn = "1921208139",

volume = "17",

pages = "57--60",

editor = "\{Association for the Advancement of Animal Breeding\}, AAABG: and Genetics",

booktitle = "Proceedings of the Seventeenth Conference for the Advancement of Animal Breeding and Genetics",

publisher = "Association for the Advancement of Animal Breeding and Genetics (AAABG)",

note = "AAABG 2007: 17th Conference of the Association for the Advancement of Animal Breeding and Genetics ; Conference date: 23-09-2007 Through 26-09-2007",

}

Bunter, KL, Luxford, BG & Hermesch, S 2007, Associations between feed intake of growing gilts, lactating sows and other reproductive or performance traits. in AAABG Association for the Advancement of Animal Breeding & Genetics (eds), Proceedings of the Seventeenth Conference for the Advancement of Animal Breeding and Genetics. vol. 17, Association for the Advancement of Animal Breeding and Genetics (AAABG), Armidale, Australia, pp. 57-60, AAABG 2007: 17th Conference of the Association for the Advancement of Animal Breeding and Genetics, Armidale, Australia, 23/09/07. <https://hdl.handle.net/1959.11/4148>

Associations between feed intake of growing gilts, lactating sows and other reproductive or performance traits. / Bunter, Kim Louise; Luxford, B G; Hermesch, Susanne.
Proceedings of the Seventeenth Conference for the Advancement of Animal Breeding and Genetics. ed. / AAABG: Association for the Advancement of Animal Breeding; Genetics. Vol. 17 Armidale, Australia: Association for the Advancement of Animal Breeding and Genetics (AAABG), 2007. p. 57-60.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Associations between feed intake of growing gilts, lactating sows and other reproductive or performance traits

AU - Bunter, Kim Louise

AU - Luxford, B G

AU - Hermesch, Susanne

PY - 2007

Y1 - 2007

N2 - The genetic and phenotypic associations between performance and feed intake traits of finished gilts (GFI), along with their subsequent reproductive performance and feed intake during lactation (LFI), were estimated using data collected from two maternal lines recorded under the same management system. 'Ad-libitum' feed intake was heritable (h²: 0.33±0.08) when recorded in post-finisher gilts or during lactation (h²: 0.11±0.09). Genetic (ra) and phenotypic (rp) correlations between GFI and performance traits support the hypothesis that selection for reduced back fat (BF) and lower feed conversion ratio (FCR) are associated with a reduction in feed intake (ra: 0.36±0.11 and 0.79±0.11 for BF and FCR respectively). However, the correlations between GFI and measures of sow reproductive performance were lower (ranges: ra from -0.16 to 0.01; rp from -0.07 to 0.02). Current estimates of genetic and phenotypic correlations between GFI and LFI do not support the expectation of a positive association between these traits (ra: -0.26±0.33; rp: 0.05±0.04) although standard errors are large. More data are required to obtain accurate estimates of correlations between LFI and the other traits.

AB - The genetic and phenotypic associations between performance and feed intake traits of finished gilts (GFI), along with their subsequent reproductive performance and feed intake during lactation (LFI), were estimated using data collected from two maternal lines recorded under the same management system. 'Ad-libitum' feed intake was heritable (h²: 0.33±0.08) when recorded in post-finisher gilts or during lactation (h²: 0.11±0.09). Genetic (ra) and phenotypic (rp) correlations between GFI and performance traits support the hypothesis that selection for reduced back fat (BF) and lower feed conversion ratio (FCR) are associated with a reduction in feed intake (ra: 0.36±0.11 and 0.79±0.11 for BF and FCR respectively). However, the correlations between GFI and measures of sow reproductive performance were lower (ranges: ra from -0.16 to 0.01; rp from -0.07 to 0.02). Current estimates of genetic and phenotypic correlations between GFI and LFI do not support the expectation of a positive association between these traits (ra: -0.26±0.33; rp: 0.05±0.04) although standard errors are large. More data are required to obtain accurate estimates of correlations between LFI and the other traits.

KW - Quantitative Genetics (incl Disease and Trait Mapping Genetics)

UR - http://trove.nla.gov.au/work/35062558?selectedversion=NBD42373479

UR - http://www.aaabg.org/livestocklibrary/2007/bunter057.pdf

M3 - Conference contribution

SN - 1921208139

VL - 17

SP - 57

EP - 60

BT - Proceedings of the Seventeenth Conference for the Advancement of Animal Breeding and Genetics

A2 - Association for the Advancement of Animal Breeding, AAABG:

A2 - Genetics, null

PB - Association for the Advancement of Animal Breeding and Genetics (AAABG)

CY - Armidale, Australia

T2 - AAABG 2007: 17th Conference of the Association for the Advancement of Animal Breeding and Genetics

Y2 - 23 September 2007 through 26 September 2007

ER -

Bunter KL, Luxford BG, Hermesch S. Associations between feed intake of growing gilts, lactating sows and other reproductive or performance traits. In Association for the Advancement of Animal Breeding AAABG, Genetics, editors, Proceedings of the Seventeenth Conference for the Advancement of Animal Breeding and Genetics. Vol. 17. Armidale, Australia: Association for the Advancement of Animal Breeding and Genetics (AAABG). 2007. p. 57-60

Associations between feed intake of growing gilts, lactating sows and other reproductive or performance traits

Abstract

Conference

Keywords

Access to Document

Handle.net

Fingerprint

Cite this