Impact of ewe genotype on sire breeding values in genetic evaluation of Merino visual traits

S I Mortimer; K L Egerton-Warburton; A A Swan

Impact of ewe genotype on sire breeding values in genetic evaluation of Merino visual traits

S I Mortimer
, K L Egerton-Warburton
, A A Swan

Animal Genetics and Breeding Unit

Research output: Contribution to conference › Abstract

Abstract

Merino ram breeders often place significant emphasis on visually assessed fleece traits within their breeding programs. There are concerns among Merino breeders that anecdotally Australian Sheep Breeding Values (ASBVs) of sires do not a lwa ys predict performance when sires are used in a different genetic background, or in other words, when joined to different ewe genotypes (often referred to as 'bloodlines'). Egerton-Warburton et al. (2019) reported that sire rankings for fleece traits were consistent across ewe genotypes, and that sire x ewe genotype interactions accounted for less than 2% of phenotypic variation.

Original language	English
Pages	lxxx-lxxx
Publication status	Published - 2021
Event	AAAS 2021: 33rd Biennial Conference of the Australian Association of Animal Sciences - Esplanade Hotel, Fremantle, Australia Duration: 1 Feb 2021 → 3 Feb 2021

Conference

Conference	AAAS 2021: 33rd Biennial Conference of the Australian Association of Animal Sciences
City	Fremantle, Australia
Period	1/02/21 → 3/02/21

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https://hdl.handle.net/1959.11/31268

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title = "Impact of ewe genotype on sire breeding values in genetic evaluation of Merino visual traits",

abstract = "Merino ram breeders often place significant emphasis on visually assessed fleece traits within their breeding programs. There are concerns among Merino breeders that anecdotally Australian Sheep Breeding Values (ASBVs) of sires do not a lwa ys predict performance when sires are used in a different genetic background, or in other words, when joined to different ewe genotypes (often referred to as 'bloodlines'). Egerton-Warburton et al. (2019) reported that sire rankings for fleece traits were consistent across ewe genotypes, and that sire x ewe genotype interactions accounted for less than 2\% of phenotypic variation.",

author = "Mortimer, \{S I\} and Egerton-Warburton, \{K L\} and Swan, \{A A\}",

note = "Publication also known as <i>Animal Production in Australia</i>, volume 33; AAAS 2021: 33rd Biennial Conference of the Australian Association of Animal Sciences ; Conference date: 01-02-2021 Through 03-02-2021",

year = "2021",

language = "English",

pages = "lxxx--lxxx",

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TY - CONF

T1 - Impact of ewe genotype on sire breeding values in genetic evaluation of Merino visual traits

AU - Mortimer, S I

AU - Egerton-Warburton, K L

AU - Swan, A A

N1 - Publication also known as <i>Animal Production in Australia</i>, volume 33

PY - 2021

Y1 - 2021

N2 - Merino ram breeders often place significant emphasis on visually assessed fleece traits within their breeding programs. There are concerns among Merino breeders that anecdotally Australian Sheep Breeding Values (ASBVs) of sires do not a lwa ys predict performance when sires are used in a different genetic background, or in other words, when joined to different ewe genotypes (often referred to as 'bloodlines'). Egerton-Warburton et al. (2019) reported that sire rankings for fleece traits were consistent across ewe genotypes, and that sire x ewe genotype interactions accounted for less than 2% of phenotypic variation.

AB - Merino ram breeders often place significant emphasis on visually assessed fleece traits within their breeding programs. There are concerns among Merino breeders that anecdotally Australian Sheep Breeding Values (ASBVs) of sires do not a lwa ys predict performance when sires are used in a different genetic background, or in other words, when joined to different ewe genotypes (often referred to as 'bloodlines'). Egerton-Warburton et al. (2019) reported that sire rankings for fleece traits were consistent across ewe genotypes, and that sire x ewe genotype interactions accounted for less than 2% of phenotypic variation.

UR - http://10.1071/ANv61n3abs

M3 - Abstract

SP - lxxx-lxxx

T2 - AAAS 2021: 33rd Biennial Conference of the Australian Association of Animal Sciences

Y2 - 1 February 2021 through 3 February 2021

ER -

Impact of ewe genotype on sire breeding values in genetic evaluation of Merino visual traits

Abstract

Conference

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