Heritability Estimates for Fatty Acid Concentration in Angus Beef

dc.contributor.author Tait, Richard
dc.contributor.author Tait, Richard
dc.contributor.author Reecy, James
dc.contributor.author Zhang, Shu
dc.contributor.author Knight, Travis
dc.contributor.author Bormann, Jenny
dc.contributor.author Strohbehn, Daryl
dc.contributor.author Beitz, Donald
dc.contributor.author Reecy, James
dc.date 2018-08-25T20:37:56.000
dc.date.accessioned 2020-06-29T23:30:14Z
dc.date.available 2020-06-29T23:30:14Z
dc.date.copyright Mon Jan 01 00:00:00 UTC 2007
dc.date.issued 2007-01-01
dc.description.abstract <p>Genetic control of fatty acid composition in grain-fed beef calves was evaluated when the fatty acids are measured on a percentage of lipid basis and on a mg of fatty acid / g of beef basis. Fatty acids of concern for human health (e.g. 14:0, 16:0, 16:1, 18:0, and 18:1) show evidence of having genetic control. Heritability estimates for these five fatty acids indicate stronger genetic control when fatty acid concentrations are expressed on a percentage of lipid basis (h2 = 0.20 to 0.49) than when expressed on a mg of fatty acid / g of beef basis (h2 = 0.12 to 0.27). However, there may be some concern that selection for a healthier fatty acid composition may come through an overall decrease of lipid within the beef. This would have significant consequences for production of high quality beef in the U.S. Our goal was to identify tools which will allow for selection of a healthier fatty acid profile with similar or increased lipid within beef. The results of this study indicate that a selection scheme based on fatty acids expressed on a percentage of lipid basis with maintenance of lipid concentration as a selection goal would be the most likely selection scheme to utilize for improving the healthfulness of U.S. beef.</p>
dc.identifier archive/lib.dr.iastate.edu/ans_air/vol653/iss1/17/
dc.identifier.articleid 1229
dc.identifier.contextkey 3327059
dc.identifier.doi https://doi.org/10.31274/ans_air-180814-524
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ans_air/vol653/iss1/17
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/8358
dc.language.iso en
dc.relation.ispartofseries Animal Science Research Reports
dc.source.bitstream archive/lib.dr.iastate.edu/ans_air/vol653/iss1/17/R2191.pdf|||Fri Jan 14 21:09:03 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Animal Sciences
dc.subject.disciplines Beef Science
dc.subject.keywords ASL R2191
dc.title Heritability Estimates for Fatty Acid Concentration in Angus Beef
dc.type article
dc.type.genre beef
dspace.entity.type Publication
relation.isAuthorOfPublication 87b905df-0ec5-436c-b54a-54a44503da6c
relation.isAuthorOfPublication fb994cd9-94d5-4370-94ab-f33934c4cd6f
relation.isJournalIssueOfPublication 70de9dc8-be88-49a2-93ca-08fadeb8478d
relation.isSeriesOfPublication 7f3839b7-b833-4418-a6fa-adda2b23950a
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