{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T09:14:16Z","timestamp":1790154856519,"version":"4.0.1"},"reference-count":29,"publisher":"Oxford University Press (OUP)","license":[{"start":{"date-parts":[[2026,5,20]],"date-time":"2026-05-20T00:00:00Z","timestamp":1779235200000},"content-version":"vor","delay-in-days":139,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"South Dakota State University Experiment Station","award":["HATCH-SD00H690-19"],"award-info":[{"award-number":["HATCH-SD00H690-19"]}]},{"name":"Beef Nutrition Program Endowment at South Dakota State University"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,1,15]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>The objective was to determine if increasing roughage equivalent (RE) from 7% to 12% (17.5% to 20.5% dietary neutral detergent fiber on a DM basis) in the last 28\u2009days of fattening could improve rumen health parameters and decrease the frequency of liver abscesses without compromising productive efficiency or carcass characteristics. Charolais\u2009\u00d7\u2009Angus crossbred steers [n\u2009=\u200964; n\u2009=\u20098 pens; initial shrunk body weight (SBW)\u2009=\u2009633\u2009kg\u2009\u00b1\u200935.1\u2009kg] were allocated to dietary treatment in a completely randomized design. All steers were fed a common 7% [dry matter (DM) basis] roughage equivalent diet (17.5% neutral detergent fiber [NDF] DM basis) where the roughage sources were based upon corn silage and hay for the 58 d prior to study initiation. The treatments involved increasing the dietary forage concentration from 7% to 12% for the final 28\u2009days on feed, as follows: (1) No diet change (7R) and (2) 5% (DM basis) roughage equivalent addition to 7R via grass hay during the final 28 DOF to increase the dietary NDF to 20.5% DM basis (12R). Steers were finished on treatment diets for 28 d prior to harvest. No differences (P\u2009\u2265\u20090.19) were observed for any growth performance, efficiency, or carcass trait measures except for marbling scores. Marbling score differed (P\u2009=\u20090.04) between treatments with 12R steers exhibiting 5% greater marbling than 7R steers. A treatment\u2009\u00d7\u2009DOF interaction (P\u2009&amp;lt;\u20090.01) was observed for minutes ruminating per day. Daily minutes ruminating was increased (P\u2009\u2264\u20090.05) for 12R on d 1, 2, and 20 and tended to be increased (P\u2009\u2264\u20090.10) for 12R on d 10, 13, 24, and 25. Rumenitis score nor was liver abscess prevalence was influenced by dietary treatment. Inclusion of an additional 5% RE to cattle diets during the final 28 DOF can be a management strategy to maintain ruminal health without sacrificing growth performance or carcass quality, but does not appear to reduce incidence of liver abscessation.<\/jats:p>","DOI":"10.1093\/tas\/txag068","type":"journal-article","created":{"date-parts":[[2026,5,15]],"date-time":"2026-05-15T11:48:22Z","timestamp":1778845702000},"source":"Crossref","is-referenced-by-count":1,"title":["Increasing dietary roughage equivalent from 7 to 12% during the final 28 days on feed does not impact growth performance but may improve ruminal health in feedlot steers"],"prefix":"10.1093","volume":"10","author":[{"given":"Forest L","family":"Francis","sequence":"first","affiliation":[{"name":"Department of Animal Science, South Dakota State University , Brookings, SD 57007,","place":["United States"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Federico","family":"Podversich","sequence":"additional","affiliation":[{"name":"Department of Animal Science, South Dakota State University , Brookings, SD 57007,","place":["United States"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4042-9114","authenticated-orcid":false,"given":"Warren C","family":"Rusche","sequence":"additional","affiliation":[{"name":"Department of Animal Science, South Dakota State University , Brookings, SD 57007,","place":["United States"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8804-8567","authenticated-orcid":false,"given":"Zachary K","family":"Smith","sequence":"additional","affiliation":[{"name":"Department of Animal Science, South Dakota State University , Brookings, SD 57007,","place":["United States"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2026,5,20]]},"reference":[{"key":"2026053008312291800_txag068-B1","doi-asserted-by":"publisher","first-page":"335","DOI":"10.1016\/j.cvfa.2022.08.001","article-title":"Pathogenesis of liver abscesses in cattle","volume":"38","author":"Amachawadi","year":"2022","journal-title":"Vet. 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