{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,26]],"date-time":"2026-01-26T00:05:52Z","timestamp":1769385952872,"version":"3.49.0"},"reference-count":24,"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":8894,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Br J Nutr"],"published-print":{"date-parts":[[1982,11]]},"abstract":"<jats:p>1. Twenty pigs were given one of five diets containing 0.9\u201339.2 g nitrogen\/kg dry matter (DM) during the period 13\u201327 d of age.<\/jats:p><jats:p>2. The pigs were fed hourly, from 22\u201327 d of age, with a diet sprayed with an indigestible marker, <jats:sup>103<\/jats:sup> Ru-labelled Tris (l,10-phenanthroline)-ruthenium (II) chloride. All pigs were slaughtered at 27 d of age.<\/jats:p><jats:p>3. Flows of endogenous N estimated by feeding the diet containing 0.9 g N\/kg and by regression analysis using results from all diets, were similar.<\/jats:p><jats:p>4. Flows of endogenous N were: stomach 1.8. duodenum 4.5, jejunum 4.2, ileum 3.5, caecum 2.7, large intestine 2.6 and faeces 1.7 g\/kg dm intake.<\/jats:p><jats:p>5. Values are given for the flow of endogenous amino acids to the ileum.<\/jats:p><jats:p>6. Of the DM, 70% was digested anterior to the duodenum and for N the value was 10%. 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