Impact of addition of new herds on genetic parameter estimates in the Australian Brahman population

Katherine Donoghue; David Johnston; Hans Ulrich Graser

Impact of addition of new herds on genetic parameter estimates in the Australian Brahman population

Katherine Donoghue
, David Johnston
, Hans Ulrich Graser

Animal Genetics and Breeding Unit

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

Abstract

The impact of new herds joining BREEDPLAN in recent years was investigated by comparison of genetic parameters estimated from old and new herds over the same time period. New herds tended to be smaller than older herds, but no difference was observed in average contemporary group size between the two groups. Some difference was observed between the two groups in direct genetic and residual variances, most likely due to less information available from new herds. Despite these differences, genetic parameters for the trait of 200-day weight for the two groups were very similar, indicating the data could be successfully combined for genetic evaluation purposes.

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	352-355
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

Animal Breeding

Access to Document

https://hdl.handle.net/1959.11/4114

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Donoghue, K., Johnston, D., & Graser, H. U. (2007). Impact of addition of new herds on genetic parameter estimates in the Australian Brahman population. 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. 352-355). Association for the Advancement of Animal Breeding and Genetics (AAABG). https://hdl.handle.net/1959.11/4114

Donoghue, Katherine ; Johnston, David ; Graser, Hans Ulrich. / Impact of addition of new herds on genetic parameter estimates in the Australian Brahman population. 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. 352-355

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title = "Impact of addition of new herds on genetic parameter estimates in the Australian Brahman population",

abstract = "The impact of new herds joining BREEDPLAN in recent years was investigated by comparison of genetic parameters estimated from old and new herds over the same time period. New herds tended to be smaller than older herds, but no difference was observed in average contemporary group size between the two groups. Some difference was observed between the two groups in direct genetic and residual variances, most likely due to less information available from new herds. Despite these differences, genetic parameters for the trait of 200-day weight for the two groups were very similar, indicating the data could be successfully combined for genetic evaluation purposes.",

keywords = "Animal Breeding",

author = "Katherine Donoghue and David Johnston and Graser, \{Hans Ulrich\}",

year = "2007",

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isbn = "1921208139",

volume = "17",

pages = "352--355",

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",

}

Donoghue, K, Johnston, D & Graser, HU 2007, Impact of addition of new herds on genetic parameter estimates in the Australian Brahman population. 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. 352-355, AAABG 2007: 17th Conference of the Association for the Advancement of Animal Breeding and Genetics, Armidale, Australia, 23/09/07. <https://hdl.handle.net/1959.11/4114>

Impact of addition of new herds on genetic parameter estimates in the Australian Brahman population. / Donoghue, Katherine; Johnston, David; Graser, Hans Ulrich.
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. 352-355.

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

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AB - The impact of new herds joining BREEDPLAN in recent years was investigated by comparison of genetic parameters estimated from old and new herds over the same time period. New herds tended to be smaller than older herds, but no difference was observed in average contemporary group size between the two groups. Some difference was observed between the two groups in direct genetic and residual variances, most likely due to less information available from new herds. Despite these differences, genetic parameters for the trait of 200-day weight for the two groups were very similar, indicating the data could be successfully combined for genetic evaluation purposes.

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

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Donoghue K, Johnston D, Graser HU. Impact of addition of new herds on genetic parameter estimates in the Australian Brahman population. 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. 352-355

Impact of addition of new herds on genetic parameter estimates in the Australian Brahman population

Abstract

Conference

Keywords

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