{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,6]],"date-time":"2025-11-06T05:39:57Z","timestamp":1762407597649},"reference-count":28,"publisher":"Cambridge University Press (CUP)","issue":"1","license":[{"start":{"date-parts":[[2007,3,9]],"date-time":"2007-03-09T00:00:00Z","timestamp":1173398400000},"content-version":"unspecified","delay-in-days":6276,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Br J Nutr"],"published-print":{"date-parts":[[1990,1]]},"abstract":"<jats:p>The voluntary intake (VI) of separated leaf and stem fractions of a grass and legume (<jats:italic>Panicum maximum<\/jats:italic> and Lablab purpureus respectively) was determined using Hereford steers fistulated at the rumen and oesophagus. VI of leaf fractions was higher than that of the stem fraction (8\u00b723 \u03bd. 3\u00b767 kg\/d, <jats:italic>P<\/jats:italic> &lt; 0\u00b7001) while that for the legume diets was higher than for the grass diets (6\u00b765 \u03bd. 5\u00b722 kg\/d, <jats:italic>P<\/jats:italic> &lt; 0\u00b705). The total number of eating chews per day was higher on the leaf than stem fraction (1\u00b76 \u00d7 10<jats:sup>4<\/jats:sup> \u03bd. 9\u00b78 \u00d7 10<jats:sup>3<\/jats:sup>, <jats:italic>P<\/jats:italic> &lt; 0\u00b705). The mean number of rumination chews (2\u00b74 \u00d7 10<jats:sup>4<\/jats:sup>) was similar (<jats:italic>P<\/jats:italic> &gt; 0\u00b705) for all four diets. The mean resistance of large particles (LP, i.e. retained on a 1\u00b718 mm sieve during wet sieving) to breakdown (chews per g LP breakdown) during eating was lower for leaf than stem fractions (8\u20134 \u03bd 23\u00b77) and lower for the grass than legume diets (10\u20135 \u03bd 21\u00b76). The mean resistance to breakdown of LP by rumination (chews per g LP breakdown) was lower in leaf than in stem fractions (8\u00b72 \u03bd. 13\u00b72, <jats:italic>P<\/jats:italic> &lt; 0\u00b701) and higher in grass than in legume (12\u00b75 \u03bd 9\u00b70, <jats:italic>P<\/jats:italic> &lt; 0\u00b705). The resistance of LP to breakdown during rumination was higher than during eating for the grass diets, but was lower for the legume. Fractional passage rates (FPR) of small particles (i.e. passing through a 1\u00b718 mm sieve during wet sieving) from the reticulo-rumen were negatively related to dimensions of particles, with greater ease of outflow for legume than for grass particles of the same length or diameter. When corrected for content of cellulase-indigestible fibre, FPR of small particles of leaf was greater than for small stem particles. It was concluded that VI of tropical forages was associated with the resistance of LP to breakdown by chewing during both eating and rumination and that the patterns of escape of small particles from the reticulo-rumen were only partially explicable in terms of particle dimensions, and that other properties of the particles may be of importance.<\/jats:p>","DOI":"10.1079\/bjn19900096","type":"journal-article","created":{"date-parts":[[2005,6,9]],"date-time":"2005-06-09T03:49:51Z","timestamp":1118288991000},"page":"105-119","source":"Crossref","is-referenced-by-count":39,"title":["Resistance of leaf and stem fractions of tropical forage to chewing and passage in cattle"],"prefix":"10.1017","volume":"63","author":[{"given":"M. N.","family":"Mcleod","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P. M.","family":"Kennedy","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D. J.","family":"Minson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2007,3,9]]},"reference":[{"key":"S0007114590000150_ref028","doi-asserted-by":"publisher","DOI":"10.1017\/S002185960001546X"},{"key":"S0007114590000150_ref025","first-page":"50","article-title":"Use of detergents in the analysis of fibrous feeds. IV. Determination of plant cell-wall constituents.","volume":"50","author":"Van Soest","year":"1967","journal-title":"Journal of the Association of Official Agricultural Chemists"},{"key":"S0007114590000150_ref021","first-page":"43","volume-title":"Aspects of Digestive Physiology in Ruminants,","author":"Sutherland","year":"1988"},{"key":"S0007114590000150_ref016","doi-asserted-by":"publisher","DOI":"10.1071\/AR9810099"},{"key":"S0007114590000150_ref014","first-page":"167","volume-title":"Nutritional Limits to Animal Production from Pastures,","author":"Minson","year":"1982"},{"key":"S0007114590000150_ref013","doi-asserted-by":"publisher","DOI":"10.1079\/BJN19660078"},{"key":"S0007114590000150_ref005","doi-asserted-by":"publisher","DOI":"10.2527\/jas1987.6461821x"},{"key":"S0007114590000150_ref004","doi-asserted-by":"publisher","DOI":"10.1071\/AR9850483"},{"key":"S0007114590000150_ref003","doi-asserted-by":"publisher","DOI":"10.1079\/BJN19850042"},{"key":"S0007114590000150_ref002","doi-asserted-by":"publisher","DOI":"10.4141\/cjss57-009"},{"key":"S0007114590000150_ref010","doi-asserted-by":"publisher","DOI":"10.1071\/AR9730875"},{"key":"S0007114590000150_ref015","doi-asserted-by":"publisher","DOI":"10.1017\/S0021859600055623"},{"key":"S0007114590000150_ref019","volume-title":"Principles and Procedures of Statistics: A Biometrical Approach.","author":"Steel","year":"1980"},{"key":"S0007114590000150_ref011","doi-asserted-by":"publisher","DOI":"10.1016\/0377-8401(78)90002-0"},{"key":"S0007114590000150_ref006","doi-asserted-by":"publisher","DOI":"10.2527\/jas1963.223752x"},{"key":"S0007114590000150_ref001","doi-asserted-by":"crossref","first-page":"116","DOI":"10.1079\/PNS19710021","article-title":"Metabolic and physical control of food intake in ruminants","volume":"30","author":"Bines","year":"1971","journal-title":"Proceedings of the Nutrition Society"},{"key":"S0007114590000150_ref026","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(86)80723-8"},{"key":"S0007114590000150_ref008","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(85)80902-4"},{"key":"S0007114590000150_ref020","first-page":"107","article-title":"Automatic measurement of the jaw movements of dairy cows during grazing and rumination","volume":"6","author":"Stobbs","year":"1972","journal-title":"Tropical Grasslands"},{"key":"S0007114590000150_ref012","doi-asserted-by":"publisher","DOI":"10.2527\/jas1988.664992x"},{"key":"S0007114590000150_ref007","doi-asserted-by":"publisher","DOI":"10.1071\/AR9810389"},{"key":"S0007114590000150_ref024","first-page":"829","article-title":"Use of detergents in the analysis of fibrous feeds. 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A rapid method for the determination of fibre and lignin","volume":"46","author":"Van Soest","year":"1963","journal-title":"Journal of the Association of Official Agricultural Chemists"},{"key":"S0007114590000150_ref027","first-page":"1","volume-title":"Techniques in Particle Size Analysis of Feed and Digesta in Ruminants,","author":"Weston","year":"1984"},{"key":"S0007114590000150_ref023","doi-asserted-by":"publisher","DOI":"10.1002\/jsfa.2740310702"},{"key":"S0007114590000150_ref017","doi-asserted-by":"publisher","DOI":"10.1071\/AR9810109"},{"key":"S0007114590000150_ref018","doi-asserted-by":"publisher","DOI":"10.1071\/AR9810123"},{"key":"S0007114590000150_ref022","doi-asserted-by":"publisher","DOI":"10.1017\/S0003356100026295"},{"key":"S0007114590000150_ref009","doi-asserted-by":"publisher","DOI":"10.1080\/00103627209366344"}],"container-title":["British Journal of Nutrition"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0007114590000150","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,5,18]],"date-time":"2019-05-18T18:24:37Z","timestamp":1558203877000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0007114590000150\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1990,1]]},"references-count":28,"journal-issue":{"issue":"1","published-print":{"date-parts":[[1990,1]]}},"alternative-id":["S0007114590000150"],"URL":"https:\/\/doi.org\/10.1079\/bjn19900096","relation":{},"ISSN":["0007-1145","1475-2662"],"issn-type":[{"value":"0007-1145","type":"print"},{"value":"1475-2662","type":"electronic"}],"subject":[],"published":{"date-parts":[[1990,1]]}}}