{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,17]],"date-time":"2026-06-17T20:47:52Z","timestamp":1781729272975,"version":"3.54.5"},"reference-count":23,"publisher":"Oxford University Press (OUP)","license":[{"start":{"date-parts":[[2024,7,24]],"date-time":"2024-07-24T00:00:00Z","timestamp":1721779200000},"content-version":"vor","delay-in-days":205,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,1,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>The objective of this experiment was to evaluate the effects of orally administered Megasphaera elsdenii NCIMB 41125 as a microbial supplement in steers abruptly transitioned from a receiving diet with 4% dietary starch (dry matter [DM] basis) to a growing diet with 38% dietary starch (DM basis). Steers (n\u2005=\u2005192; initial shrunk body weight [SBW]\u2005=\u2005309\u2005\u00b1\u200520.6\u00a0kg) were assigned to microbial supplement treatment in a randomized complete block design. Treatments were control (CON): no microbial supplement prior to diet transition, and (DFM): microbial supplement orally administered prior to diet transition (20\u00a0mL of microbial supplement [Lactipro NXT, Axiota Animal Health, Fort Collins, CO] containing 1\u2005\u00d7\u20051010 colony forming units Megasphaera elsdenii NCIMB 41125). Steers were sourced from a previously conducted 49 d feedlot receiving period experiment and abruptly transitioned from a receiving diet including soybean hulls and wheatlage containing 4% dietary starch (DM basis) to a growing diet including high-moisture ear corn, dry-rolled corn, and wheatlage containing 38% dietary starch (DM basis). Diets were switched on an equal DM intake basis to achieve the abrupt change and steers were fed the 38% starch diet for 49 d until experiment completion. Prior to experiment initiation, steers (n\u2005=\u200572; n\u2005=\u20053\/pen) were fitted with wireless rumination tags to track daily activity and rumination time. No differences (P\u2005\u2265\u20050.20) were observed between treatments for final SBW, average daily gain, DM intake, feed efficiency, calculated net energy (NE) for maintenance and gain, or observed-to-expected ratio of NE for maintenance and gain. Additionally, no treatment\u2005\u00d7\u2005day or treatment differences (P\u2005\u2265\u20050.12) were observed for activity or rumination measures. Minutes ruminating and active both differed (P\u2005&amp;lt;\u20050.01) for the main effect of day. Compared to non-supplemented steers, oral administration of Megasphaera elsdenii NCIMB 41125 did not improve growth performance or efficiency of dietary NE utilization in steers transitioned from a receiving diet containing 4% starch (DM basis) to a growing diet containing 38% starch (DM basis).<\/jats:p>","DOI":"10.1093\/tas\/txae113","type":"journal-article","created":{"date-parts":[[2024,7,25]],"date-time":"2024-07-25T02:48:14Z","timestamp":1721875694000},"source":"Crossref","is-referenced-by-count":1,"title":["Evaluation of orally administered <i>Megasphaera elsdenii<\/i> in steer calves abruptly transitioned from a receiving diet with 4% dietary starch to a growing diet with 38% dietary starch"],"prefix":"10.1093","volume":"8","author":[{"given":"Forest L","family":"Francis","sequence":"first","affiliation":[{"name":"Department of Animal Science, South Dakota State University , Brookings, SD 57007 , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Warren C","family":"Rusche","sequence":"additional","affiliation":[{"name":"Department of Animal Science, South Dakota State University , Brookings, SD 57007 , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zachary K","family":"Smith","sequence":"additional","affiliation":[{"name":"Department of Animal Science, South Dakota State University , Brookings, SD 57007 , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2024,7,24]]},"reference":[{"key":"2024081408401419100_CIT0001","doi-asserted-by":"crossref","first-page":"E25","DOI":"10.2527\/2006.8413_supplE25x","article-title":"Adaptation of beef cattle to high- concentrate diets: performance and ruminal metabolism1","volume":"84","author":"Brown","year":"2006","journal-title":"J. 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