{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T14:40:11Z","timestamp":1787236811681,"version":"build-2736575974"},"reference-count":32,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2021,3,31]],"date-time":"2021-03-31T00:00:00Z","timestamp":1617148800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Animal Physiology Nutrition"],"published-print":{"date-parts":[[2022,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    The objective of this study was to evaluate the effects of adapting Nellore and \u00bd Angus\/Nellore (AN) feedlot cattle over periods of 9 and 14\u00a0days to high\u2010concentrate diets on performance, feeding behaviour, carcass traits and rumen morphometrics. Seventy\u2010two yearling bulls (313.5\u00a0kg\u00a0\u00b1\u00a024.5), 36 Nellore and 36 AN, were randomly allocated in 24 pens (3 animals\/pen; 24\u00a0m\n                    <jats:sup>2<\/jats:sup>\n                    and 2.0\u00a0m of bunk space\/animal) according to a randomized complete block design with a 2\u00a0\u00d7\u00a02 factorial arrangement of treatments as follows: Nellore adapted for 9\u00a0days, Nellore adapted for 14\u00a0days, AN adapted for 9\u00a0days, and AN adapted for 14\u00a0days. Each treatment was composed by 6 pens (considered the experimental unit in this study). The adaptation lasted either 9 or 14\u00a0days and consisted of 3 step\u2010up diets. Therefore, yearling bulls received the finishing diet containing 86% concentrate either on day 10 or 15 of the study, which lasted 89\u00a0days taking into account adaptation and finishing periods. Cattle were slaughtered in a commercial abattoir, and two 1\u2010cm\n                    <jats:sup>2<\/jats:sup>\n                    \u2010rumen fragments, one from cranial and another from ventral sac, were collected. The AN cattle outperformed Nellore in terms of average daily gain (1.71\u00a0kg\/day vs. 1.27\u00a0kg\/day,\n                    <jats:italic>p<\/jats:italic>\n                    \u00a0&lt;\u00a00.01), gain:feed ratio (0.137\u00a0kg\/kg vs. 0.127\u00a0kg\/kg,\n                    <jats:italic>p<\/jats:italic>\n                    \u00a0=\u00a00.02) and hot carcass weight (243.64\u00a0kg vs. 228.98\u00a0kg,\n                    <jats:italic>p<\/jats:italic>\n                    \u00a0&lt;\u00a00.01). No main effect of the adaptation period was observed for any of the feedlot performance and carcass traits variables evaluated. Compared to feedlot cattle adapted for 9\u00a0days, feedlot cattle adapted for 14\u00a0days sorted against long (0.68 vs. 0.91,\n                    <jats:italic>p<\/jats:italic>\n                    \u00a0&lt;\u00a00.01) and for fine particles (1.04 vs. 1.00,\n                    <jats:italic>p<\/jats:italic>\n                    \u00a0=\u00a00.01). An interaction (\n                    <jats:italic>p<\/jats:italic>\n                    \u00a0&lt;\u00a00.01) of genotype and adaptation period was observed for rumenitis, where Nellore bulls adapted for 14\u00a0days presented the highest scores. In conclusion, there was no evidence that either Nellore or AN cattle benefit from an adaptation period shorter than 14\u00a0days.\n                  <\/jats:p>","DOI":"10.1111\/jpn.13542","type":"journal-article","created":{"date-parts":[[2021,3,31]],"date-time":"2021-03-31T11:44:33Z","timestamp":1617191073000},"page":"12-23","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Growth performance and rumen morphometrics of Nellore and \u00bd Angus\/Nellore feedlot cattle adapted over 9 and 14 days to high\u2010concentrate diets"],"prefix":"10.1111","volume":"106","author":[{"given":"Daniel Hideki Mariano","family":"Watanabe","sequence":"first","affiliation":[{"name":"College of Technology and Agricultural Sciences S\u00e3o Paulo State University Julio de Mesquita Filho (Unesp) \u2013 Dracena Experimental Campus  Dracena Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gustavo Perina","family":"Bertoldi","sequence":"additional","affiliation":[{"name":"College of Technology and Agricultural Sciences S\u00e3o Paulo State University Julio de Mesquita Filho (Unesp) \u2013 Dracena Experimental Campus  Dracena Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anderson Augusto","family":"dos Santos","sequence":"additional","affiliation":[{"name":"College of Technology and Agricultural Sciences S\u00e3o Paulo State University Julio de Mesquita Filho (Unesp) \u2013 Dracena Experimental Campus  Dracena Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wilson Inacio","family":"da Silva Filho","sequence":"additional","affiliation":[{"name":"College of Technology and Agricultural Sciences S\u00e3o Paulo State University Julio de Mesquita Filho (Unesp) \u2013 Dracena Experimental Campus  Dracena Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lucas Felipe Rebeschini","family":"de Oliveira","sequence":"additional","affiliation":[{"name":"College of Technology and Agricultural Sciences S\u00e3o Paulo State University Julio de Mesquita Filho (Unesp) \u2013 Dracena Experimental Campus  Dracena Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ana Carolina Janssen","family":"Pinto","sequence":"additional","affiliation":[{"name":"College of Technology and Agricultural Sciences S\u00e3o Paulo State University Julio de Mesquita Filho (Unesp) \u2013 Dracena Experimental Campus  Dracena Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Murillo","family":"Ceola Stefano Pereira","sequence":"additional","affiliation":[{"name":"School of Veterinary Medicine and Animal Science S\u00e3o Paulo State University Julio de Mesquita Filho (Unesp) \u2013 Botucatu Campus  Botucatu Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniela Dutra","family":"Estevam","sequence":"additional","affiliation":[{"name":"School of Veterinary Medicine and Animal Science S\u00e3o Paulo State University Julio de Mesquita Filho (Unesp) \u2013 Botucatu Campus  Botucatu Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mariana Martins","family":"Squizatti","sequence":"additional","affiliation":[{"name":"College of Technology and Agricultural Sciences S\u00e3o Paulo State University Julio de Mesquita Filho (Unesp) \u2013 Dracena Experimental Campus  Dracena Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rafael Silvio Bonilha","family":"Pinheiro","sequence":"additional","affiliation":[{"name":"Department of Biology and Animal Science College of Engineering S\u00e3o Paulo State University Julio de Mesquita Filho (Unesp) \u2013 Ilha Solteira Campus  Ilha Solteira Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1253-7310","authenticated-orcid":false,"given":"Danilo Domingues","family":"Millen","sequence":"additional","affiliation":[{"name":"College of Technology and Agricultural Sciences S\u00e3o Paulo State University Julio de Mesquita Filho (Unesp) \u2013 Dracena Experimental Campus  Dracena Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,3,31]]},"reference":[{"key":"e_1_2_10_2_1","unstructured":"Association of Official Analytical Chemists (AOAC). 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