Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/55421
Title: Genetic parameters for fatty acid traits of beef in Australian Angus
Contributor(s): Duff, C J  (author)orcid ; Samaraweera, A M  (author)orcid ; McGilchrist, P  (author)orcid ; Clark, S A  (author)orcid 
Publication Date: 2022
Open Access: Yes
DOI: 10.3920/978-90-8686-940-4_654
Handle Link: https://hdl.handle.net/1959.11/55421
Abstract: Preliminary genetic and phenotypic parameters were estimated for fatty acid traits in feedlot finished Australian Angus cattle. This included the relationships between saturated fatty acids (SAT), monounsaturated fatty acids (MONO) and polyunsaturated fatty acids (PUFA), with carcase weight (CWT), carcase rump fat (CP8) and carcase intramuscular fat (CIMF). All fatty acid traits showed phenotypic variation, with a considerable portion attributed to genetics as shown by heritabilities for SAT, MONO and PUFA of 0.64±0.11, 0.67±0.12 and 0.25±0.09 respectively. SAT had moderate negative genetic correlation with CWT, CP8 and CIMF (-0.30±0.16, -0.21±0.17 and -0.38±0.14 respectively), while MONO and PUFA have moderate positive genetic correlation with CWT, CP8 and CIMF ranging from 0.14±0.17 to 0.46±0.22. The results show that the proportion of MONO and PUFA can be increased, and SAT decreased, in intramuscular fat through selection. Importantly, this can be achieved without being detrimental to carcase weight, carcase rump fat or total intramuscular fat.
Publication Type: Conference Publication
Conference Details: WCGALP 2022: 12th World Congress on Genetics Applied to Livestock Production, Rotterdam, The Netherlands, 3rd - 8th July, 2022
Source of Publication: Proceedings of 12th World Congress on Genetics Applied to Livestock Production (WCGALP), p. 2700-2703
Publisher: Wageningen Academic
Place of Publication: Wageningen, The Netherlands
Fields of Research (FoR) 2020: 300305 Animal reproduction and breeding
300302 Animal management
300399 Animal production not elsewhere classified
Socio-Economic Objective (SEO) 2020: 100401 Beef cattle
100699 Primary products from animals not elsewhere classified
241303 Carcass meat (incl. fish and seafood)
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
Appears in Collections:Conference Publication
School of Environmental and Rural Science

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