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the assessment Yet a are going KWWSVGRLRUJ316 3XEOLVKHGRQOLQHE\&DPEULGJH8QLYHUVLW\3UHVV in the studies are undertaken, matter whether they assignment can only although these alimentary tract. that the into the and the and the and the situation concerning protein is shall use Plasma albumin Diagrammatic representation endogenous nitrogen-containing materials entering the microbial population. can only is known in man are at quantities consumed in the that the epithelia alone in man fundic and pancreatic secretions contribute about and the intestine may contribute which can precipitated by trichloroacetic is sterile who examined cat, horse, animals examined contained all species counts per in the in the attain their highest concentrations in the large intestine. in the usually greatest KWWSVGRLRUJ316 3XEOLVKHGRQOLQHE\&DPEULGJH8QLYHUVLW\3UH

VV Nitrogenous compounds that enter bacterial as as endogenous origin. Owing to the hydrolytic and rapid simple stomach and upper intestine. Dietary protein by cooking or exposure to the be more peptic and in any event is evidence evidence to dogs with jejunolostomies, that labelled nitrogen attributable to casein rapidly disappeared Many experiments with rats have been which large by endogenous nitrogen has been found in the upper these experiments, however, are rapid shedding Very large increases in the upper slaughtered sheep (Badawy, Campbell, still be detected duodenal contents a permanent cannula located immediately caudal situated at increase, however, show less increase or anaesthetized bled (Badawy, mucus is form that has made a rough relative incidence the gut show when acid Schiff His results show variable ‘mucus’-containing cells numbers in intestine, and reach a sheep determined methylpentose sugars present that their considerably greater intestine and abomasum. Rhamnose paper chromatography, cell wall insoluble mucus becomes

soluble, these methods can only give an approximate indication concentrations present. little soluble or abomasum, values are merely reflecting bacterial cell wall experiments with breakdown occurred sometimes considerable break- considerable breakdown KWWSVGRLRUJ316 3XEOLVKHGRQOLQHE\&DPEULGJH8QLYHUVLW\3UHVV question whether are degraded is obscure. Proteolytic activity is normally trypsin appearing in the proteolytic enzymes bacteria is altered as amino-acid chain there is proteolytic enzymes in the intestine (Pelot nitrogen excreted in the suspected large seems probable secreted enzymes and that are reabsorbed. albumin has been shown sheep, rats general agreement disappear every broken down in the no agreement whether account for a large in the different kinds a loss degradation is activity which produce neither amino short-chain fatty be the disintegration unless their constituent elements are trapped ubiquitous in tract, even though their

different parts, when endogenous protein found about nitrogen occurs between and the mucus, urea be greater doubt that the mostly as ammonia. in the tract should tempting to in the urine when energy-adequate diet little or to bacterial degradation endogenous protein nitrogen represents minimal excretion for tissue this represents maintain nitrogen KWWSVGRLRUJ316 3XEOLVKHGRQOLQHE\&DPEULGJH8QLYHUVLW\3UHVV equilibrium a per d is it reasonable to suppose g protein is needed for endogenous in the which is subject to absorbed products rather than may disagree is acceptable. however, is unlikely be as simple to be a result bacterial degradation, metabolically useful non-essential amino acids concept would be better essential amino acids, good dietary endogenous protein be roughly same as suggested concept. urea recirculation circulating urea a result rise to ammonia dioxide. Ammonia or incorporated into monogastric animal see how recirculation has an

y additional source for bacterial growth. in greater faecal loss is different entry into encourages bacterial growth is inadequate nitrogen this to the not be overlooked. with much fibre lead in the faeces; this is usually ascribed such diets large intestine. Similarly, rise to extra bacterial ruminant and, organisms disappear in intestine, diets increase bacterial growth in the output ascribe all greater growth intestine although total situation allowing for endogenous loss within can be suggestion already made. made. N. Munro, editor]. Oxford: Blackwell Scientific Publications. KWWSVGRLRUJ316 3XEOLVKHGRQOLQHE\&DPEULGJH8QLYHUVLW\3UHVV Tract in Protein Metabolism Metabolism N. Munro, editor]. Oxford: Scientific Publications. Protein Metabolism Metabolism N. Munro, editor]. Oxford: Scientific Publications. Gastrointestinal Truct Protein Metabolism Metabolism €N. Munro, editor]. Oxford Scientific Publications. Protein Metabolism Metabolism

N. Munro, editor]. Oxford Scientific Publications. Studies on nitrogenous compounds in British doctor may never wittingly patient with vitamin due to primary malnutrition an elective period may feel states are unreal and deserve his successful policies who have seen large areas elsewhere in such matters entirely different light. However, account is con- more with in the United Kingdom, and particularly various factors concerned intake and with disorders from depletion ascorbic acid, folic acid or calciferols. this country vitamins is more controversial. first instance, considered in general and requirements discuss here be required female at different various factors may affect actually available to the consideration. At major, general causes individual variation in very long or article, with a comments. Recently, made use betical list when discussing deficiency appearing to be my approach KWWSVGRLRUJ316 3XEOLVKHGRQOLQHE\&DPEULGJH8QLYHUVLW\3UHV