{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,6]],"date-time":"2026-09-06T04:36:22Z","timestamp":1788669382315,"version":"build-2803163510"},"reference-count":31,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2021,4,7]],"date-time":"2021-04-07T00:00:00Z","timestamp":1617753600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Veterinary Medicine &amp;amp; Sci"],"published-print":{"date-parts":[[2021,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Normal feeding behaviours is one of the criteria of the health condition of dairy cows particularly in the condition of heat stress.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>The study evaluated the effects of the ratio of pellets of wheat and barley grains to ground corn grain on sorting activity and chewing behaviour of lactating dairy cows managed under ambient conditions including natural heat stress events.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods<\/jats:title>\n                    <jats:p>Nine multiparous cows (650 \u00b1 56 kg Body Weight; mean \u00b1 SD) averaging 102 \u00b1 13 days in milk and producing 54 \u00b1 6 kg\/d were randomly assigned to a triplicate 3 \u00d7 3 Latin square. During each 21\u2010d period, cows received one of three total mixed rations as dietary treatments. The dietary treatments were three ratio of pellets (containing 50% ground wheat and 50% ground barley): ground corn on a dry matter (DM) basis: 1) 33.3:66.6 (low); 2) 66.6:33.3 (medium); and 3) 100:0 (high). During the experiment, the ambient temperature\u2010humidity index was equal or more than 72, indicating that the cows were predisposed to heat stress condition.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Increasing the proportion of wheat\u2010barley pellets in the diet had a minimal effect on sorting index of different particles during the first 6 h of the day. However, later in the day (6\u201018h), sorting against long particles (particles &gt;19 mm) and in favour of fine particles (particles &lt;1.18 mm) linearly increased with increasing the proportion of pellet; as a result overall daily sorting against long particles was increased with increasing the proportion of pellets. Although the average of daily eating and rumination was not affected by the treatments in the day times with high ambient THI, time spent for eating and rumination was low and eating time had more fluctuation for diet contained a high level of pellets.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Increasing the proportion of pellets of barley and wheat grains in the diet under conditions of heat stress caused more fluctuation in daily eating behaviour and cows were predisposed to sort against long particles.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/vms3.487","type":"journal-article","created":{"date-parts":[[2021,4,7]],"date-time":"2021-04-07T09:27:16Z","timestamp":1617787636000},"page":"1409-1416","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["The effects of the ratio of pellets of wheat and barley grains to ground corn grain in the diet on sorting and chewing activities of heat stressed dairy cows"],"prefix":"10.1002","volume":"7","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5348-1106","authenticated-orcid":false,"given":"Sayyed Mahmoud","family":"Nasrollahi","sequence":"first","affiliation":[{"name":"Department of Animal Science Campus of Agriculture and Natural Resources University of Tehran Karaj Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Abolfasl","family":"Zali","sequence":"additional","affiliation":[{"name":"Department of Animal Science Campus of Agriculture and Natural Resources University of Tehran Karaj Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gholam Reza","family":"Ghorbani","sequence":"additional","affiliation":[{"name":"Department of Animal Sciences College of Agriculture Isfahan University of Technology Isfahan Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mehdi","family":"Khani","sequence":"additional","affiliation":[{"name":"Department of Animal Sciences College of Agriculture Isfahan University of Technology Isfahan Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hossin","family":"Maktabi","sequence":"additional","affiliation":[{"name":"Department of Animal Sciences College of Agriculture Isfahan University of Technology Isfahan Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ali","family":"Kahyani","sequence":"additional","affiliation":[{"name":"Department of Animal Sciences College of Agriculture Isfahan University of Technology Isfahan Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hugues","family":"Guyot","sequence":"additional","affiliation":[{"name":"Department of Sustainable Animal Production Fundamental and Applied Research for Animals and Health University of Liege Liege Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,4,7]]},"reference":[{"key":"e_1_2_8_2_1","unstructured":"American National Standards Institute. 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