Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/14330
Title: Genetic Associations of Early Growth and Ultrasound Scanned Traits in Several Beef Breeds
Contributor(s): Jeyaruban, M Gilbert  (author)orcid ; Johnston, David  (author)orcid 
Publication Date: 2013
Handle Link: https://hdl.handle.net/1959.11/14330
Abstract: Genetic association of early growth traits with ultrasound scanned traits in heifers and bulls of Angus, Charolais, Hereford, Simmental and Santa Gertrudis were examined. Early growth traits such as birth weight (BW), 200 day weight (200D) and 400 day weight (400D) along with ultrasound scanned rump (P8), intramuscular fat (IMF) and eye muscle area (EMA) in heifers and bulls, were considered in this analysis. Estimated genetic correlations between BW and scanned fat traits were negative and ranged from -0.48 to -0.04. The 200D and 400D had positive genetic correlations with the scanned fat of heifers of all breeds, and also for the scanned fat of Angus and Herefords bulls. Breed influence on the genetic correlation of early growth traits with scanned traits was evident for all traits. The magnitude of the estimated genetic correlations of early growth traits with scanned fat traits may not be adequate to cause significant correlated changes in these traits. Therefore, selection objectives, combining early growth and ultrasound scanned traits, is required if it is necessary to change these traits in the five breeds studied.
Publication Type: Conference Publication
Conference Details: AAABG 2013: 20th Conference of the Association for the Advancement of Animal Breeding and Genetics: Translating Science into Action, Napier, New Zealand, 20th - 23rd October, 2013
Source of Publication: Proceedings of the Association for the Advancement of Animal Breeding and Genetics, v.20, p. 249-252
Publisher: Association for the Advancement of Animal Breeding and Genetics (AAABG)
Place of Publication: Armidale, Australia
ISSN: 1328-3227
Fields of Research (FoR) 2008: 070201 Animal Breeding
Fields of Research (FoR) 2020: 300305 Animal reproduction and breeding
Socio-Economic Objective (SEO) 2008: 830301 Beef Cattle
Socio-Economic Objective (SEO) 2020: 100401 Beef cattle
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
Publisher/associated links: http://www.aaabg.org/aaabghome/proceedings20.php
Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
Conference Publication

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