Reliability of estimates of correlations between reproduction and production traits from a Merino resource flock

M J Kelly; Andrew Swan; Sonja Dominik

Reliability of estimates of correlations between reproduction and production traits from a Merino resource flock

M J Kelly
, Andrew Swan
, Sonja Dominik

Animal Genetics and Breeding Unit

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

Abstract

Stochastic simulation was used to examine the reliability of estimating genetic parameters for fecundity (number of lambs born per ewe lambing) and fibre diameter in the CSIRO Fine Wool Project flock. The mean heritability estimates for fecundity and fibre diameter from 50 replicates of the simulation were similar to the true heritabilities as simulated. However, the genetic correlation between fibre diameter and fecundity was underestimated. The variation in estimates from across replicates was large. This highlights the difficulty of estimating correlation between fecundity and fibre diameter. More studies are required before the relationships between reproduction and production are known with certainty.

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	20-23
Volume	16
ISBN (Print)	064309234X, 0643092331
Publication status	Published - 2005
Event	AAABG 2005: 16th Conference of the Association for the Advancement of Animal Breeding and Genetics - Noosa Lakes, Australia Duration: 25 Sept 2005 → 28 Sept 2005

Conference

Conference	AAABG 2005: 16th Conference of the Association for the Advancement of Animal Breeding and Genetics
City	Noosa Lakes, Australia
Period	25/09/05 → 28/09/05

Keywords

Animal Breeding

Access to Document

https://hdl.handle.net/1959.11/6312

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Kelly, M. J., Swan, A., & Dominik, S. (2005). Reliability of estimates of correlations between reproduction and production traits from a Merino resource flock. In AAABG. Association for the Advancement of Animal Breeding, & Genetics (Eds.), Proceedings of the Association for the Advancement of Animal Breeding and Genetics (Vol. 16, pp. 20-23). Association for the Advancement of Animal Breeding and Genetics (AAABG). https://hdl.handle.net/1959.11/6312

Kelly, M J ; Swan, Andrew ; Dominik, Sonja. / Reliability of estimates of correlations between reproduction and production traits from a Merino resource flock. Proceedings of the Association for the Advancement of Animal Breeding and Genetics. editor / AAABG: Association for the Advancement of Animal Breeding ; Genetics. Vol. 16 Armidale, Australia : Association for the Advancement of Animal Breeding and Genetics (AAABG), 2005. pp. 20-23

@inproceedings{b2fcc08f240b41ab9204ad678a1f2fc4,

title = "Reliability of estimates of correlations between reproduction and production traits from a Merino resource flock",

abstract = "Stochastic simulation was used to examine the reliability of estimating genetic parameters for fecundity (number of lambs born per ewe lambing) and fibre diameter in the CSIRO Fine Wool Project flock. The mean heritability estimates for fecundity and fibre diameter from 50 replicates of the simulation were similar to the true heritabilities as simulated. However, the genetic correlation between fibre diameter and fecundity was underestimated. The variation in estimates from across replicates was large. This highlights the difficulty of estimating correlation between fecundity and fibre diameter. More studies are required before the relationships between reproduction and production are known with certainty.",

keywords = "Animal Breeding",

author = "Kelly, \{M J\} and Andrew Swan and Sonja Dominik",

year = "2005",

language = "English",

isbn = "064309234X",

volume = "16",

pages = "20--23",

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 2005: 16th Conference of the Association for the Advancement of Animal Breeding and Genetics ; Conference date: 25-09-2005 Through 28-09-2005",

}

Kelly, MJ, Swan, A & Dominik, S 2005, Reliability of estimates of correlations between reproduction and production traits from a Merino resource flock. in AAABG Association for the Advancement of Animal Breeding & Genetics (eds), Proceedings of the Association for the Advancement of Animal Breeding and Genetics. vol. 16, Association for the Advancement of Animal Breeding and Genetics (AAABG), Armidale, Australia, pp. 20-23, AAABG 2005: 16th Conference of the Association for the Advancement of Animal Breeding and Genetics, Noosa Lakes, Australia, 25/09/05. <https://hdl.handle.net/1959.11/6312>

Reliability of estimates of correlations between reproduction and production traits from a Merino resource flock. / Kelly, M J; Swan, Andrew; Dominik, Sonja.
Proceedings of the Association for the Advancement of Animal Breeding and Genetics. ed. / AAABG: Association for the Advancement of Animal Breeding; Genetics. Vol. 16 Armidale, Australia: Association for the Advancement of Animal Breeding and Genetics (AAABG), 2005. p. 20-23.

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

TY - GEN

T1 - Reliability of estimates of correlations between reproduction and production traits from a Merino resource flock

AU - Kelly, M J

AU - Swan, Andrew

AU - Dominik, Sonja

PY - 2005

Y1 - 2005

N2 - Stochastic simulation was used to examine the reliability of estimating genetic parameters for fecundity (number of lambs born per ewe lambing) and fibre diameter in the CSIRO Fine Wool Project flock. The mean heritability estimates for fecundity and fibre diameter from 50 replicates of the simulation were similar to the true heritabilities as simulated. However, the genetic correlation between fibre diameter and fecundity was underestimated. The variation in estimates from across replicates was large. This highlights the difficulty of estimating correlation between fecundity and fibre diameter. More studies are required before the relationships between reproduction and production are known with certainty.

AB - Stochastic simulation was used to examine the reliability of estimating genetic parameters for fecundity (number of lambs born per ewe lambing) and fibre diameter in the CSIRO Fine Wool Project flock. The mean heritability estimates for fecundity and fibre diameter from 50 replicates of the simulation were similar to the true heritabilities as simulated. However, the genetic correlation between fibre diameter and fecundity was underestimated. The variation in estimates from across replicates was large. This highlights the difficulty of estimating correlation between fecundity and fibre diameter. More studies are required before the relationships between reproduction and production are known with certainty.

KW - Animal Breeding

UR - http://www.aaabg.org/livestocklibrary/2005/020kelly.pdf

UR - http://trove.nla.gov.au/work/13321110

M3 - Conference contribution

SN - 064309234X

SN - 0643092331

VL - 16

SP - 20

EP - 23

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

A2 - Association for the Advancement of Animal Breeding, AAABG:

A2 - Genetics, null

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

CY - Armidale, Australia

T2 - AAABG 2005: 16th Conference of the Association for the Advancement of Animal Breeding and Genetics

Y2 - 25 September 2005 through 28 September 2005

ER -

Kelly MJ, Swan A, Dominik S. Reliability of estimates of correlations between reproduction and production traits from a Merino resource flock. In Association for the Advancement of Animal Breeding AAABG, Genetics, editors, Proceedings of the Association for the Advancement of Animal Breeding and Genetics. Vol. 16. Armidale, Australia: Association for the Advancement of Animal Breeding and Genetics (AAABG). 2005. p. 20-23

Reliability of estimates of correlations between reproduction and production traits from a Merino resource flock

Abstract

Conference

Keywords

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