Breeding for Reduced Breech Flystrike as part of Multi-Trait Selection

F D Brien; S F Walkom; A A Swan; D J Brown

Breeding for Reduced Breech Flystrike as part of Multi-Trait Selection

F D Brien
, S F Walkom
, A A Swan
, D J Brown

Animal Genetics and Breeding Unit

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

Abstract

We predicted genetic gains for reducing breech flystrike incidence (FSI) based on selection using modified MERINOSELECT indexes. Predicted genetic reductions in FSI after 10 years of selection were larger when the heritability of the trait was moderate (as in a summer rainfall environment) than when a low heritability was assumed (as in a winter rainfall environment). The relative gains between flystrike incidence and fleece weight, fibre diameter and reproductive rate and their implications for Merino breeding programs are discussed.

Original language	English
Pages (from-to)	528-531
Journal	Proceedings of the Association for the Advancement of Animal Breeding and Genetics
Volume	23
Publication status	Published - 2019
Event	AAABG 2019: 23rd Conference of the Association for the Advancement of Animal Breeding and Genetics - University of New England, Armidale, Australia Duration: 27 Oct 2019 → 1 Nov 2019

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title = "Breeding for Reduced Breech Flystrike as part of Multi-Trait Selection",

abstract = "We predicted genetic gains for reducing breech flystrike incidence (FSI) based on selection using modified MERINOSELECT indexes. Predicted genetic reductions in FSI after 10 years of selection were larger when the heritability of the trait was moderate (as in a summer rainfall environment) than when a low heritability was assumed (as in a winter rainfall environment). The relative gains between flystrike incidence and fleece weight, fibre diameter and reproductive rate and their implications for Merino breeding programs are discussed.",

author = "Brien, \{F D\} and Walkom, \{S F\} and Swan, \{A A\} and Brown, \{D J\}",

year = "2019",

language = "English",

volume = "23",

pages = "528--531",

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 2019: 23rd Conference of the Association for the Advancement of Animal Breeding and Genetics ; Conference date: 27-10-2019 Through 01-11-2019",

}

TY - JOUR

T1 - Breeding for Reduced Breech Flystrike as part of Multi-Trait Selection

AU - Brien, F D

AU - Walkom, S F

AU - Swan, A A

AU - Brown, D J

PY - 2019

Y1 - 2019

N2 - We predicted genetic gains for reducing breech flystrike incidence (FSI) based on selection using modified MERINOSELECT indexes. Predicted genetic reductions in FSI after 10 years of selection were larger when the heritability of the trait was moderate (as in a summer rainfall environment) than when a low heritability was assumed (as in a winter rainfall environment). The relative gains between flystrike incidence and fleece weight, fibre diameter and reproductive rate and their implications for Merino breeding programs are discussed.

AB - We predicted genetic gains for reducing breech flystrike incidence (FSI) based on selection using modified MERINOSELECT indexes. Predicted genetic reductions in FSI after 10 years of selection were larger when the heritability of the trait was moderate (as in a summer rainfall environment) than when a low heritability was assumed (as in a winter rainfall environment). The relative gains between flystrike incidence and fleece weight, fibre diameter and reproductive rate and their implications for Merino breeding programs are discussed.

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

M3 - Conference article

SN - 1328-3227

VL - 23

SP - 528

EP - 531

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 2019: 23rd Conference of the Association for the Advancement of Animal Breeding and Genetics

Y2 - 27 October 2019 through 1 November 2019

ER -

Breeding for Reduced Breech Flystrike as part of Multi-Trait Selection

Abstract

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