Ewe genotype effects in genetic evaluation of Merino fleece traits across ages

S I Mortimer; K L Egerton-Warburton; T L Bird-gardiner; A A Swan

Ewe genotype effects in genetic evaluation of Merino fleece traits across ages

S I Mortimer, K L Egerton-Warburton, T L Bird-gardiner, A A Swan

Research output: Contribution to journal › Conference article › peer-review

Abstract

The significance of ewe genotype and its interactions with sire effects were examined for Merino fleece traits recorded between post weaning and adult stages of progeny at the Macquarie site of the Merino Lifetime Productivity project. Across post weaning, hogget and 3 adult expressions, ewe bloodline effects significantly influenced fleece traits, particularly fleece weight and fibre diameter. Sire X ewe genotype interactions on fleece traits across ages were generally unimportant, accounting for small amounts of the phenotypic variance (less than 1%). Correlations between sire progeny performances were generally greater than 0.70. These results support the methods used routinely to account for these effects in MERINOSELECT genetic evaluations.

Original language	English
Pages (from-to)	27-30
Journal	Proceedings of the Association for the Advancement of Animal Breeding and Genetics
Volume	25
Publication status	Published - 26 Jul 2023
Event	AAABG 2023: 25th Conference of the Association for the Advancement of Animal Breeding and Genetics - The University Club of Western Australia, Perth, Australia Duration: 26 Jul 2023 → 28 Jul 2023

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@article{92efc23f8c044bde93d0c726a13353ab,

title = "Ewe genotype effects in genetic evaluation of Merino fleece traits across ages",

abstract = "The significance of ewe genotype and its interactions with sire effects were examined for Merino fleece traits recorded between post weaning and adult stages of progeny at the Macquarie site of the Merino Lifetime Productivity project. Across post weaning, hogget and 3 adult expressions, ewe bloodline effects significantly influenced fleece traits, particularly fleece weight and fibre diameter. Sire X ewe genotype interactions on fleece traits across ages were generally unimportant, accounting for small amounts of the phenotypic variance (less than 1\%). Correlations between sire progeny performances were generally greater than 0.70. These results support the methods used routinely to account for these effects in MERINOSELECT genetic evaluations.",

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

year = "2023",

month = jul,

day = "26",

language = "English",

volume = "25",

pages = "27--30",

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

issn = "1328-3227",

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

note = "AAABG 2023: 25th Conference of the Association for the Advancement of Animal Breeding and Genetics ; Conference date: 26-07-2023 Through 28-07-2023",

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TY - JOUR

T1 - Ewe genotype effects in genetic evaluation of Merino fleece traits across ages

AU - Mortimer, S I

AU - Egerton-Warburton, K L

AU - Bird-gardiner, T L

AU - Swan, A A

PY - 2023/7/26

Y1 - 2023/7/26

N2 - The significance of ewe genotype and its interactions with sire effects were examined for Merino fleece traits recorded between post weaning and adult stages of progeny at the Macquarie site of the Merino Lifetime Productivity project. Across post weaning, hogget and 3 adult expressions, ewe bloodline effects significantly influenced fleece traits, particularly fleece weight and fibre diameter. Sire X ewe genotype interactions on fleece traits across ages were generally unimportant, accounting for small amounts of the phenotypic variance (less than 1%). Correlations between sire progeny performances were generally greater than 0.70. These results support the methods used routinely to account for these effects in MERINOSELECT genetic evaluations.

AB - The significance of ewe genotype and its interactions with sire effects were examined for Merino fleece traits recorded between post weaning and adult stages of progeny at the Macquarie site of the Merino Lifetime Productivity project. Across post weaning, hogget and 3 adult expressions, ewe bloodline effects significantly influenced fleece traits, particularly fleece weight and fibre diameter. Sire X ewe genotype interactions on fleece traits across ages were generally unimportant, accounting for small amounts of the phenotypic variance (less than 1%). Correlations between sire progeny performances were generally greater than 0.70. These results support the methods used routinely to account for these effects in MERINOSELECT genetic evaluations.

UR - http://www.aaabg.org/aaabghome/proceedings25.php

M3 - Conference article

SN - 1328-3227

VL - 25

SP - 27

EP - 30

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

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

T2 - AAABG 2023: 25th Conference of the Association for the Advancement of Animal Breeding and Genetics

Y2 - 26 July 2023 through 28 July 2023

ER -

Ewe genotype effects in genetic evaluation of Merino fleece traits across ages

Abstract

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