Genetic Correlations Across Ages for Greasy Fleece Weight and Fibre Diameter in Merino Sheep

Daniel Brown; Andrew Swan; J S Gill

Genetic Correlations Across Ages for Greasy Fleece Weight and Fibre Diameter in Merino Sheep

Daniel Brown
, Andrew Swan
, J S Gill

Animal Genetics and Breeding Unit

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

Abstract

While adult wool production is a key determinant of profitability of Merino flocks, much of the on-farm recording through MERINOSELCT is focused on assessments at 12 or 18 months of age. While there have been numerous studies in research flocks examining these relationships these results have not been validated in industry flocks. The aim of this paper was to investigate the genetic correlations between multiple age expressions of fibre diameter and greasy fleece weight using the MERINOSELECT database. The results support earlier research in that, while the correlations across ages are generally very high they also suggest that at least one adult assessment of fleece weight and fibre diameter would be beneficial for the breeding program. As a result of this work the genetic evaluation for Sheep Genetics will be modified to include annual expressions of adult fleece traits.

Original language	English
Title of host publication	Proceedings of the Association for the Advancement of Animal Breeding and Genetics
Editors	Nicolas Lopez Villalobos
Place of Publication	Armidale, Australia
Publisher	Association for the Advancement of Animal Breeding and Genetics (AAABG)
Pages	110-113
Volume	20
ISBN (Print)	9780473260569
Publication status	Published - 2013
Event	AAABG 2013: 20th Conference of the Association for the Advancement of Animal Breeding and Genetics: Translating Science into Action - Napier, New Zealand Duration: 20 Oct 2013 → 23 Oct 2013

Conference

Conference	AAABG 2013: 20th Conference of the Association for the Advancement of Animal Breeding and Genetics: Translating Science into Action
City	Napier, New Zealand
Period	20/10/13 → 23/10/13

Keywords

Animal Breeding

Access to Document

https://hdl.handle.net/1959.11/14335

Handle.net

Persistent link

Cite this

Brown, D., Swan, A., & Gill, J. S. (2013). Genetic Correlations Across Ages for Greasy Fleece Weight and Fibre Diameter in Merino Sheep. In N. Lopez Villalobos (Ed.), Proceedings of the Association for the Advancement of Animal Breeding and Genetics (Vol. 20, pp. 110-113). Association for the Advancement of Animal Breeding and Genetics (AAABG). https://hdl.handle.net/1959.11/14335

Brown, Daniel ; Swan, Andrew ; Gill, J S. / Genetic Correlations Across Ages for Greasy Fleece Weight and Fibre Diameter in Merino Sheep. Proceedings of the Association for the Advancement of Animal Breeding and Genetics. editor / Nicolas Lopez Villalobos. Vol. 20 Armidale, Australia : Association for the Advancement of Animal Breeding and Genetics (AAABG), 2013. pp. 110-113

@inproceedings{0bb8e2339db34c39b1ed3389dad1e794,

title = "Genetic Correlations Across Ages for Greasy Fleece Weight and Fibre Diameter in Merino Sheep",

abstract = "While adult wool production is a key determinant of profitability of Merino flocks, much of the on-farm recording through MERINOSELCT is focused on assessments at 12 or 18 months of age. While there have been numerous studies in research flocks examining these relationships these results have not been validated in industry flocks. The aim of this paper was to investigate the genetic correlations between multiple age expressions of fibre diameter and greasy fleece weight using the MERINOSELECT database. The results support earlier research in that, while the correlations across ages are generally very high they also suggest that at least one adult assessment of fleece weight and fibre diameter would be beneficial for the breeding program. As a result of this work the genetic evaluation for Sheep Genetics will be modified to include annual expressions of adult fleece traits.",

keywords = "Animal Breeding",

author = "Daniel Brown and Andrew Swan and Gill, \{J S\}",

year = "2013",

language = "English",

isbn = "9780473260569",

volume = "20",

pages = "110--113",

editor = "\{Lopez Villalobos\}, Nicolas",

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

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

note = "AAABG 2013: 20th Conference of the Association for the Advancement of Animal Breeding and Genetics: Translating Science into Action ; Conference date: 20-10-2013 Through 23-10-2013",

}

Brown, D, Swan, A & Gill, JS 2013, Genetic Correlations Across Ages for Greasy Fleece Weight and Fibre Diameter in Merino Sheep. in N Lopez Villalobos (ed.), Proceedings of the Association for the Advancement of Animal Breeding and Genetics. vol. 20, Association for the Advancement of Animal Breeding and Genetics (AAABG), Armidale, Australia, pp. 110-113, AAABG 2013: 20th Conference of the Association for the Advancement of Animal Breeding and Genetics: Translating Science into Action, Napier, New Zealand, 20/10/13. <https://hdl.handle.net/1959.11/14335>

Genetic Correlations Across Ages for Greasy Fleece Weight and Fibre Diameter in Merino Sheep. / Brown, Daniel; Swan, Andrew; Gill, J S.
Proceedings of the Association for the Advancement of Animal Breeding and Genetics. ed. / Nicolas Lopez Villalobos. Vol. 20 Armidale, Australia: Association for the Advancement of Animal Breeding and Genetics (AAABG), 2013. p. 110-113.

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

TY - GEN

T1 - Genetic Correlations Across Ages for Greasy Fleece Weight and Fibre Diameter in Merino Sheep

AU - Brown, Daniel

AU - Swan, Andrew

AU - Gill, J S

PY - 2013

Y1 - 2013

N2 - While adult wool production is a key determinant of profitability of Merino flocks, much of the on-farm recording through MERINOSELCT is focused on assessments at 12 or 18 months of age. While there have been numerous studies in research flocks examining these relationships these results have not been validated in industry flocks. The aim of this paper was to investigate the genetic correlations between multiple age expressions of fibre diameter and greasy fleece weight using the MERINOSELECT database. The results support earlier research in that, while the correlations across ages are generally very high they also suggest that at least one adult assessment of fleece weight and fibre diameter would be beneficial for the breeding program. As a result of this work the genetic evaluation for Sheep Genetics will be modified to include annual expressions of adult fleece traits.

AB - While adult wool production is a key determinant of profitability of Merino flocks, much of the on-farm recording through MERINOSELCT is focused on assessments at 12 or 18 months of age. While there have been numerous studies in research flocks examining these relationships these results have not been validated in industry flocks. The aim of this paper was to investigate the genetic correlations between multiple age expressions of fibre diameter and greasy fleece weight using the MERINOSELECT database. The results support earlier research in that, while the correlations across ages are generally very high they also suggest that at least one adult assessment of fleece weight and fibre diameter would be beneficial for the breeding program. As a result of this work the genetic evaluation for Sheep Genetics will be modified to include annual expressions of adult fleece traits.

KW - Animal Breeding

UR - http://www.aaabg.org/aaabghome/proceedings20.php

M3 - Conference contribution

SN - 9780473260569

VL - 20

SP - 110

EP - 113

BT - Proceedings of the Association for the Advancement of Animal Breeding and Genetics

A2 - Lopez Villalobos, Nicolas

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

CY - Armidale, Australia

T2 - AAABG 2013: 20th Conference of the Association for the Advancement of Animal Breeding and Genetics: Translating Science into Action

Y2 - 20 October 2013 through 23 October 2013

ER -

Genetic Correlations Across Ages for Greasy Fleece Weight and Fibre Diameter in Merino Sheep

Abstract

Conference

Keywords

Access to Document

Handle.net

Fingerprint

Cite this