Bull traits measured early in life as indicators of herd fertility

N J Corbet; B M Burns; D H Corbet; J M Crisp; David Johnston; M R McGowan; B K Venus; R G Holroyd

Bull traits measured early in life as indicators of herd fertility

N J Corbet, B M Burns, D H Corbet, J M Crisp, David Johnston, M R McGowan, B K Venus, R G Holroyd

Animal Genetics and Breeding Unit

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

Abstract

This study investigated the genetic relationships of blood hormones, scrotal size, body weight, condition score and flight time measured on young bulls to 12 months of age with key reproductive traits in Brahman and Tropical Composite breeds (n=4079). Heritability of the traits ranged from 0.17 to 0.72 indicating potential for genetic change in both populations. Genetic correlations with presence of sperm in the ejaculate at 12 months of age, percent normal sperm at 2 years old, and heifer age at puberty were moderate, in some cases up to 0.61, indicating a potential to improve the efficiency of selection of breeding replacements.

Original language	English
Title of host publication	Proceedings of the Association for the Advancement of Animal Breeding and Genetics
Editors	William Pattie
Place of Publication	Armidale, Australia
Publisher	Association for the Advancement of Animal Breeding and Genetics (AAABG)
Pages	55-58
Volume	19
ISBN (Print)	9780646559155
Publication status	Published - 2011
Event	AAABG 2011: 19th Conference of the Association for the Advancement of Animal Breeding and Genetics - Perth, Australia Duration: 19 Jul 2011 → 21 Jul 2011

Conference

Conference	AAABG 2011: 19th Conference of the Association for the Advancement of Animal Breeding and Genetics
City	Perth, Australia
Period	19/07/11 → 21/07/11

Keywords

Animal Breeding

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https://hdl.handle.net/1959.11/9877

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Corbet, N. J., Burns, B. M., Corbet, D. H., Crisp, J. M., Johnston, D., McGowan, M. R., Venus, B. K., & Holroyd, R. G. (2011). Bull traits measured early in life as indicators of herd fertility. In W. Pattie (Ed.), Proceedings of the Association for the Advancement of Animal Breeding and Genetics (Vol. 19, pp. 55-58). Association for the Advancement of Animal Breeding and Genetics (AAABG). https://hdl.handle.net/1959.11/9877

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title = "Bull traits measured early in life as indicators of herd fertility",

abstract = "This study investigated the genetic relationships of blood hormones, scrotal size, body weight, condition score and flight time measured on young bulls to 12 months of age with key reproductive traits in Brahman and Tropical Composite breeds (n=4079). Heritability of the traits ranged from 0.17 to 0.72 indicating potential for genetic change in both populations. Genetic correlations with presence of sperm in the ejaculate at 12 months of age, percent normal sperm at 2 years old, and heifer age at puberty were moderate, in some cases up to 0.61, indicating a potential to improve the efficiency of selection of breeding replacements.",

keywords = "Animal Breeding",

author = "Corbet, \{N J\} and Burns, \{B M\} and Corbet, \{D H\} and Crisp, \{J M\} and David Johnston and McGowan, \{M R\} and Venus, \{B K\} and Holroyd, \{R G\}",

year = "2011",

language = "English",

isbn = "9780646559155",

volume = "19",

pages = "55--58",

editor = "William Pattie",

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 2011: 19th Conference of the Association for the Advancement of Animal Breeding and Genetics ; Conference date: 19-07-2011 Through 21-07-2011",

}

Corbet, NJ, Burns, BM, Corbet, DH, Crisp, JM, Johnston, D, McGowan, MR, Venus, BK & Holroyd, RG 2011, Bull traits measured early in life as indicators of herd fertility. in W Pattie (ed.), Proceedings of the Association for the Advancement of Animal Breeding and Genetics. vol. 19, Association for the Advancement of Animal Breeding and Genetics (AAABG), Armidale, Australia, pp. 55-58, AAABG 2011: 19th Conference of the Association for the Advancement of Animal Breeding and Genetics, Perth, Australia, 19/07/11. <https://hdl.handle.net/1959.11/9877>

Bull traits measured early in life as indicators of herd fertility. / Corbet, N J; Burns, B M; Corbet, D H et al.
Proceedings of the Association for the Advancement of Animal Breeding and Genetics. ed. / William Pattie. Vol. 19 Armidale, Australia: Association for the Advancement of Animal Breeding and Genetics (AAABG), 2011. p. 55-58.

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

TY - GEN

T1 - Bull traits measured early in life as indicators of herd fertility

AU - Corbet, N J

AU - Burns, B M

AU - Corbet, D H

AU - Crisp, J M

AU - Johnston, David

AU - McGowan, M R

AU - Venus, B K

AU - Holroyd, R G

PY - 2011

Y1 - 2011

N2 - This study investigated the genetic relationships of blood hormones, scrotal size, body weight, condition score and flight time measured on young bulls to 12 months of age with key reproductive traits in Brahman and Tropical Composite breeds (n=4079). Heritability of the traits ranged from 0.17 to 0.72 indicating potential for genetic change in both populations. Genetic correlations with presence of sperm in the ejaculate at 12 months of age, percent normal sperm at 2 years old, and heifer age at puberty were moderate, in some cases up to 0.61, indicating a potential to improve the efficiency of selection of breeding replacements.

AB - This study investigated the genetic relationships of blood hormones, scrotal size, body weight, condition score and flight time measured on young bulls to 12 months of age with key reproductive traits in Brahman and Tropical Composite breeds (n=4079). Heritability of the traits ranged from 0.17 to 0.72 indicating potential for genetic change in both populations. Genetic correlations with presence of sperm in the ejaculate at 12 months of age, percent normal sperm at 2 years old, and heifer age at puberty were moderate, in some cases up to 0.61, indicating a potential to improve the efficiency of selection of breeding replacements.

KW - Animal Breeding

UR - http://trove.nla.gov.au/work/162660639

UR - http://www.aaabg.org/aaabg19/

M3 - Conference contribution

SN - 9780646559155

VL - 19

SP - 55

EP - 58

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

A2 - Pattie, William

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

CY - Armidale, Australia

T2 - AAABG 2011: 19th Conference of the Association for the Advancement of Animal Breeding and Genetics

Y2 - 19 July 2011 through 21 July 2011

ER -

Bull traits measured early in life as indicators of herd fertility

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