Sire by environment interaction in sheep may re-rank sires for some traits

M J Carrick; Julius Herman Van Der Werf

Sire by environment interaction in sheep may re-rank sires for some traits

School of Environmental & Rural Science

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

Abstract

Through analysis of field data from Sheep Genetics Australia, we estimated genetic correlations among breeding values in different environments, classified into quintiles by contemporary group averages for body weight (BWT), clean fleece weight (CFW) or weight of wool impurities (WIMP). A genetic correlation was considered to be low enough to be of concern if its upper 95% confidence limit was below 0.80, indicating a statistically significant genotype by environmental interaction (GxE). There appear to be significant GxE for body weight, eye muscle and fat depth in yearlings in all three environment classifiers and for hoggets classified on WIMP. The wool weights and to some extent also wool impurities also showed significant GxE in both yearling and hogget data. For the most part, wool quality traits were free of significant GxE interactions.

Original language	English
Title of host publication	Proceedings of the Association 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	248-251
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)

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https://hdl.handle.net/1959.11/4078

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Carrick, M. J., & Van Der Werf, J. H. (2007). Sire by environment interaction in sheep may re-rank sires for some traits. In AAABG. Association for the Advancement of Animal Breeding, & Genetics (Eds.), Proceedings of the Association for the Advancement of Animal Breeding and Genetics (Vol. 17, pp. 248-251). Association for the Advancement of Animal Breeding and Genetics (AAABG). https://hdl.handle.net/1959.11/4078

Carrick, M J ; Van Der Werf, Julius Herman. / Sire by environment interaction in sheep may re-rank sires for some traits. Proceedings of the Association 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. 248-251

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title = "Sire by environment interaction in sheep may re-rank sires for some traits",

abstract = "Through analysis of field data from Sheep Genetics Australia, we estimated genetic correlations among breeding values in different environments, classified into quintiles by contemporary group averages for body weight (BWT), clean fleece weight (CFW) or weight of wool impurities (WIMP). A genetic correlation was considered to be low enough to be of concern if its upper 95\% confidence limit was below 0.80, indicating a statistically significant genotype by environmental interaction (GxE). There appear to be significant GxE for body weight, eye muscle and fat depth in yearlings in all three environment classifiers and for hoggets classified on WIMP. The wool weights and to some extent also wool impurities also showed significant GxE in both yearling and hogget data. For the most part, wool quality traits were free of significant GxE interactions.",

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

author = "Carrick, \{M J\} and \{Van Der Werf\}, \{Julius Herman\}",

year = "2007",

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isbn = "1921208139",

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

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

}

Carrick, MJ & Van Der Werf, JH 2007, Sire by environment interaction in sheep may re-rank sires for some traits. in AAABG Association for the Advancement of Animal Breeding & Genetics (eds), Proceedings of the Association for the Advancement of Animal Breeding and Genetics. vol. 17, Association for the Advancement of Animal Breeding and Genetics (AAABG), Armidale, Australia, pp. 248-251, AAABG 2007: 17th Conference of the Association for the Advancement of Animal Breeding and Genetics, Armidale, Australia, 23/09/07. <https://hdl.handle.net/1959.11/4078>

Sire by environment interaction in sheep may re-rank sires for some traits. / Carrick, M J; Van Der Werf, Julius Herman.
Proceedings of the Association 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. 248-251.

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

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T1 - Sire by environment interaction in sheep may re-rank sires for some traits

AU - Carrick, M J

AU - Van Der Werf, Julius Herman

PY - 2007

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N2 - Through analysis of field data from Sheep Genetics Australia, we estimated genetic correlations among breeding values in different environments, classified into quintiles by contemporary group averages for body weight (BWT), clean fleece weight (CFW) or weight of wool impurities (WIMP). A genetic correlation was considered to be low enough to be of concern if its upper 95% confidence limit was below 0.80, indicating a statistically significant genotype by environmental interaction (GxE). There appear to be significant GxE for body weight, eye muscle and fat depth in yearlings in all three environment classifiers and for hoggets classified on WIMP. The wool weights and to some extent also wool impurities also showed significant GxE in both yearling and hogget data. For the most part, wool quality traits were free of significant GxE interactions.

AB - Through analysis of field data from Sheep Genetics Australia, we estimated genetic correlations among breeding values in different environments, classified into quintiles by contemporary group averages for body weight (BWT), clean fleece weight (CFW) or weight of wool impurities (WIMP). A genetic correlation was considered to be low enough to be of concern if its upper 95% confidence limit was below 0.80, indicating a statistically significant genotype by environmental interaction (GxE). There appear to be significant GxE for body weight, eye muscle and fat depth in yearlings in all three environment classifiers and for hoggets classified on WIMP. The wool weights and to some extent also wool impurities also showed significant GxE in both yearling and hogget data. For the most part, wool quality traits were free of significant GxE interactions.

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

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M3 - Conference contribution

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

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Carrick MJ, Van Der Werf JH. Sire by environment interaction in sheep may re-rank sires for some traits. In Association for the Advancement of Animal Breeding AAABG, Genetics, editors, Proceedings of the Association for the Advancement of Animal Breeding and Genetics. Vol. 17. Armidale, Australia: Association for the Advancement of Animal Breeding and Genetics (AAABG). 2007. p. 248-251

Sire by environment interaction in sheep may re-rank sires for some traits

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