Effect of Feeding Ethanol By-Products on Performance and Marbling Deposition in Steers Fed High-Concentrate or High-Forage Diets

dc.contributor.author Schoonmaker, Jon
dc.contributor.author Trenkle, Allen
dc.contributor.author Beitz, Donald
dc.date 2018-08-25T22:02:06.000
dc.date.accessioned 2020-06-29T23:31:54Z
dc.date.available 2020-06-29T23:31:54Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 2009
dc.date.issued 2009-01-01
dc.description.abstract <p>Research on the effect of dietary ethanol by-products on beef quality has been limited. Some Universities have reported a decrease in marbling due to distillers grains inclusion, while others have not. It is unclear why marbling deposition may be decreased when increasing amounts of distillers grains are fed; however, decreased starch availability, increased vitamin A and D, and the high oil content in ethanol by-products may contribute. In contrast, distillers grains can increase unsaturated fatty acid content of beef, thus increasing healthfulness. Our objective was to measure the effect of wet distillers grains (0, 20, or 40 % of the diet) on growth, feed intake, and marbling deposition and to determine what may be responsible for decreased marbling. Average daily gain and feed intake did not differ between wet distillers grains treatments, but cattle fed distillers grains were more efficient. Marbling score decreased in high-concentrate-fed steers as WDG concentration was increased, but increased in high-foragefed steers from the 0 to 20% WDG inclusion rate and then decreased from the 20 to 40% WDG inclusion rate. Backfat thickness decreased in high-concentrate-fed steers as WDG concentration increased but increased in high-forage-fed steers from the 0 to 20% WDG inclusion rate and then decreased from the 20 to 40% WDG inclusion rate. Cattle fed distillers grains had lower plasma total vitamin A and plasma vitamin D. Retinol, however, was positively related to marbling and vitamin D was negatively related to marbling. Polyunsaturated fatty acids, which can enhance the healthfulness of beef, were increased by feeding wet distillers grains, but were related to decreased marbling.</p>
dc.identifier archive/lib.dr.iastate.edu/ans_air/vol655/iss1/42/
dc.identifier.articleid 1459
dc.identifier.contextkey 3390291
dc.identifier.doi https://doi.org/10.31274/ans_air-180814-446
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ans_air/vol655/iss1/42
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/8593
dc.language.iso en
dc.relation.ispartofseries Animal Science Research Reports
dc.source.bitstream archive/lib.dr.iastate.edu/ans_air/vol655/iss1/42/R2419.pdf|||Sat Jan 15 00:11:48 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Animal Sciences
dc.subject.disciplines Beef Science
dc.subject.keywords ASL R2419
dc.title Effect of Feeding Ethanol By-Products on Performance and Marbling Deposition in Steers Fed High-Concentrate or High-Forage Diets
dc.type article
dc.type.genre beef
dspace.entity.type Publication
relation.isJournalIssueOfPublication 3d9dfb75-1750-45f7-a559-dc2c94d08a2e
relation.isSeriesOfPublication 7f3839b7-b833-4418-a6fa-adda2b23950a
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