{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T19:35:03Z","timestamp":1790710503771,"version":"4.1.0"},"reference-count":25,"publisher":"Cambridge University Press (CUP)","issue":"3","license":[{"start":{"date-parts":[[2007,3,9]],"date-time":"2007-03-09T00:00:00Z","timestamp":1173398400000},"content-version":"unspecified","delay-in-days":5791,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Br J Nutr"],"published-print":{"date-parts":[[1991,5]]},"abstract":"<jats:p>The total amounts of time spent eating and ruminating per 24 h by goats and sheep were determined. The efficiencies of chewing during eating (&lt;C.EAT&gt;) and chewing during ruminating (&lt;C.RUM&gt;) on the breakdown of feed particles to below the critical size required to leave the rumen (&lt; 1.0 mm) were investigated. All studies were done with the animals fed on a chaffed lucerne (<jats:italic>Medicago sativa<\/jats:italic>) hay diet. Goats spent more time eating (+3.1 h;<jats:italic>P<\/jats:italic>&lt; 0.01), and less time ruminating (-2.2 h;<jats:italic>P<\/jats:italic>&lt; 0.05) per 24 h, than sheep, when fed hourly at<jats:italic>ad lib.<\/jats:italic>intake. The efficiency of chewing during eating (&lt;C.EAT&gt;) in breaking down feed particles to &lt; 1.0 mm was greater in goats (85%;<jats:italic>P<\/jats:italic>&lt; 0.01) than sheep (48%). The process of rumination in sheep served to reduce the feed particles which were &gt; 1.0 mm in the rumen to &lt; 1.0 mm. Sheep tended to be more efficient in this process than goats (59 \u03bd 48%), with the difference not attaining significance (<jats:italic>P<\/jats:italic>&gt; 0.1). The greater frequency of chews (number of total jaw movements\/min) during eating in goats (<jats:italic>P<\/jats:italic>&lt; 0.01), or during ruminating in sheep (<jats:italic>P<\/jats:italic>&lt; 0.001), was the major component explaining differences in efficiency between the two species in both the eating and rumination processes. When corrected for the number of chews\/min, the differences in &lt;C.RUM&gt; and &lt;C.EAT&gt; were not significant between goats and sheep. During eating goats had greater apparent rates of total salivary secretion (<jats:italic>P<\/jats:italic>&lt; 0.1), and greater apparent rates of salivary nitrogen secretion (<jats:italic>P<\/jats:italic>&lt; 0.05) than sheep. The results help explain the greater fibre digestibility and rumen ammonia irreversible loss rates in goats than sheep, when both species were fed on lucerne chaff.<\/jats:p>","DOI":"10.1079\/bjn19910096","type":"journal-article","created":{"date-parts":[[2005,6,9]],"date-time":"2005-06-09T07:49:51Z","timestamp":1118303391000},"page":"355-363","source":"Crossref","is-referenced-by-count":75,"title":["The efficiency of chewing during eating and ruminating in goats and sheep"],"prefix":"10.1017","volume":"65","author":[{"given":"B. M.","family":"Fran\u00c7oise domingue","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D. W.","family":"DELLOW","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T. N.","family":"BARRY","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2007,3,9]]},"reference":[{"key":"S0007114591000417_ref020","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2494.1984.tb01706.x"},{"key":"S0007114591000417_ref018","first-page":"639","volume-title":"Nuclear and Related Techniques in Animal Production and Health. 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M. F. (1989). A comparative study of voluntary intake and rumen digestion by deer, goats and sheep. PhD Thesis, Massey University, New Zealand."},{"key":"S0007114591000417_ref023","first-page":"660","article-title":"A note on the rate of secretion and chemical composition of parotid saliva in sheep and goats","volume":"46","author":"Seth","year":"1976","journal-title":"Indian Journal of Animal Science"},{"key":"S0007114591000417_ref010","doi-asserted-by":"publisher","DOI":"10.1017\/S0021859600056343"},{"key":"S0007114591000417_ref006","first-page":"193","article-title":"Rumen bacteria: interaction with dietary components and response to dietary variation","volume":"36","author":"Cheng","year":"1977","journal-title":"Federation Proceedings"},{"key":"S0007114591000417_ref009","doi-asserted-by":"publisher","DOI":"10.1007\/978-94-011-8067-2_5"},{"key":"S0007114591000417_ref004","doi-asserted-by":"publisher","DOI":"10.1071\/AR9840565"},{"key":"S0007114591000417_ref017","doi-asserted-by":"publisher","DOI":"10.1159\/000391428"},{"key":"S0007114591000417_ref022","first-page":"205","article-title":"Chewing and physical breakdown of feed in sheep","volume":"10","author":"Reid","year":"1979","journal-title":"Annales de Recherches V\u00e9t\u00e9rinaires"},{"key":"S0007114591000417_ref013","doi-asserted-by":"publisher","DOI":"10.1051\/animres:19740104"},{"key":"S0007114591000417_ref003","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(62)89328-X"},{"key":"S0007114591000417_ref011","doi-asserted-by":"publisher","DOI":"10.1079\/BJN19740036"},{"key":"S0007114591000417_ref001","doi-asserted-by":"crossref","first-page":"562","DOI":"10.1128\/AEM.31.4.562-568.1976","article-title":"Ultrastructure of rumen bacterial attachment to forage cell walls","volume":"31","author":"Akin","year":"1976","journal-title":"Applied and Environmental Microbiology"},{"key":"S0007114591000417_ref016","volume-title":"The Rumen and its Microbes.","author":"Hungate","year":"1966"}],"container-title":["British Journal of Nutrition"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0007114591000417","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,4,7]],"date-time":"2020-04-07T15:44:38Z","timestamp":1586274278000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0007114591000417\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1991,5]]},"references-count":25,"journal-issue":{"issue":"3","published-print":{"date-parts":[[1991,5]]}},"alternative-id":["S0007114591000417"],"URL":"https:\/\/doi.org\/10.1079\/bjn19910096","relation":{},"ISSN":["0007-1145","1475-2662"],"issn-type":[{"value":"0007-1145","type":"print"},{"value":"1475-2662","type":"electronic"}],"subject":[],"published":{"date-parts":[[1991,5]]}}}