Genetic parameters for body weight and carcase traits in Australian based south African meat Merino sheep

Daniel Brown; MA Fozi

Genetic parameters for body weight and carcase traits in Australian based south African meat Merino sheep

Daniel Brown
, MA Fozi

Animal Genetics and Breeding Unit

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

Abstract

To breed for improved growth and carcase characteristics accurate genetic parameters are required. Heritabilities and genetic and phenotypic correlations for weaning weight (Wwt), post weaning weight (Pwt), yearling weight (Ywt), post weaning fat depth (Pfat), yearling fat depth (Yfat), post weaning eye muscle depth (Pemd) and yearling eye muscle depth (Yemd) were estimated for 4,614 South African Meat Merino lambs. These lambs descended from 124 sires and 1326 dams. Heritability estimates for Wwt, Pwt, Ywt, Pfat, Yfat, Pemd and Yemd 0.33 (0.04), 0.38 (0.04), 0.74 (0.06), 0.19 (0.05), 0.32 (0.06), 0.29 (0.05) and 0.35 (0.07), respectively indicate that these traits are moderate to highly heritable. Significant maternal effects were not found for these traits. There was no evidence to suggest that the genetic parameters for South African Meat Merino sheep differ significantly from those estimated in Merino sheep.

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	310-313
Volume	16
ISBN (Print)	064309234X
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/1959.11/4466

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Brown, D., & Fozi, MA. (2005). Genetic parameters for body weight and carcase traits in Australian based south African meat Merino sheep. 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. 310-313). Association for the Advancement of Animal Breeding and Genetics (AAABG). https://hdl.handle.net/1959.11/4466

Brown, Daniel ; Fozi, MA. / Genetic parameters for body weight and carcase traits in Australian based south African meat Merino sheep. 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. 310-313

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title = "Genetic parameters for body weight and carcase traits in Australian based south African meat Merino sheep",

abstract = "To breed for improved growth and carcase characteristics accurate genetic parameters are required. Heritabilities and genetic and phenotypic correlations for weaning weight (Wwt), post weaning weight (Pwt), yearling weight (Ywt), post weaning fat depth (Pfat), yearling fat depth (Yfat), post weaning eye muscle depth (Pemd) and yearling eye muscle depth (Yemd) were estimated for 4,614 South African Meat Merino lambs. These lambs descended from 124 sires and 1326 dams. Heritability estimates for Wwt, Pwt, Ywt, Pfat, Yfat, Pemd and Yemd 0.33 (0.04), 0.38 (0.04), 0.74 (0.06), 0.19 (0.05), 0.32 (0.06), 0.29 (0.05) and 0.35 (0.07), respectively indicate that these traits are moderate to highly heritable. Significant maternal effects were not found for these traits. There was no evidence to suggest that the genetic parameters for South African Meat Merino sheep differ significantly from those estimated in Merino sheep.",

keywords = "Animal Breeding",

author = "Daniel Brown and MA Fozi",

year = "2005",

language = "English",

isbn = "064309234X",

volume = "16",

pages = "310--313",

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",

}

Brown, D & Fozi, MA 2005, Genetic parameters for body weight and carcase traits in Australian based south African meat Merino sheep. 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. 310-313, 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/1959.11/4466>

Genetic parameters for body weight and carcase traits in Australian based south African meat Merino sheep. / Brown, Daniel; Fozi, MA.
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. 310-313.

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

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AU - Brown, Daniel

AU - Fozi, MA

PY - 2005

Y1 - 2005

N2 - To breed for improved growth and carcase characteristics accurate genetic parameters are required. Heritabilities and genetic and phenotypic correlations for weaning weight (Wwt), post weaning weight (Pwt), yearling weight (Ywt), post weaning fat depth (Pfat), yearling fat depth (Yfat), post weaning eye muscle depth (Pemd) and yearling eye muscle depth (Yemd) were estimated for 4,614 South African Meat Merino lambs. These lambs descended from 124 sires and 1326 dams. Heritability estimates for Wwt, Pwt, Ywt, Pfat, Yfat, Pemd and Yemd 0.33 (0.04), 0.38 (0.04), 0.74 (0.06), 0.19 (0.05), 0.32 (0.06), 0.29 (0.05) and 0.35 (0.07), respectively indicate that these traits are moderate to highly heritable. Significant maternal effects were not found for these traits. There was no evidence to suggest that the genetic parameters for South African Meat Merino sheep differ significantly from those estimated in Merino sheep.

AB - To breed for improved growth and carcase characteristics accurate genetic parameters are required. Heritabilities and genetic and phenotypic correlations for weaning weight (Wwt), post weaning weight (Pwt), yearling weight (Ywt), post weaning fat depth (Pfat), yearling fat depth (Yfat), post weaning eye muscle depth (Pemd) and yearling eye muscle depth (Yemd) were estimated for 4,614 South African Meat Merino lambs. These lambs descended from 124 sires and 1326 dams. Heritability estimates for Wwt, Pwt, Ywt, Pfat, Yfat, Pemd and Yemd 0.33 (0.04), 0.38 (0.04), 0.74 (0.06), 0.19 (0.05), 0.32 (0.06), 0.29 (0.05) and 0.35 (0.07), respectively indicate that these traits are moderate to highly heritable. Significant maternal effects were not found for these traits. There was no evidence to suggest that the genetic parameters for South African Meat Merino sheep differ significantly from those estimated in Merino sheep.

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SN - 064309234X

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Y2 - 25 September 2005 through 28 September 2005

ER -

Brown D, Fozi MA. Genetic parameters for body weight and carcase traits in Australian based south African meat Merino sheep. 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. 310-313

Genetic parameters for body weight and carcase traits in Australian based south African meat Merino sheep

Abstract

Conference

Keywords

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