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dc.contributor.author Newbold, Jamie
dc.contributor.author Chamberlain, David G.
dc.contributor.author Thomas, Phillip C.
dc.date.accessioned 2013-07-13T04:16:31Z
dc.date.available 2013-07-13T04:16:31Z
dc.date.issued 1988
dc.identifier.citation Newbold , J , Chamberlain , D G & Thomas , P C 1988 , ' Effect of intraruminal infusions of sodium bicarbonate on the rate of passage and degradation of dietary proteins in cows given a silage-based diet ' Journal of the Science of Food and Agriculture , vol 42 , no. 4 , pp. 287-293 . DOI: 10.1002/jsfa.2740420402 en
dc.identifier.issn 0022-5142
dc.identifier.other PURE: 1888794
dc.identifier.other PURE UUID: edddecc7-ddd6-4c1d-8306-7e0de1a53851
dc.identifier.other WOS: A1988M232600001
dc.identifier.other Scopus: 84986753386
dc.identifier.other handle.net: 2160/9333
dc.identifier.uri http://hdl.handle.net/2160/9333
dc.description Newbold, J., Chamberlain, D. G., Thomas, P. C. (1988). Effect of intraruminal infusions of sodium bicarbonate on the rate of passage and degradation of dietary proteins in cows given a silage-based diet. Journal of the Science of Food and Agriculture, 42 (4), 287-293. en
dc.description.abstract Four non-lactating cows, each fitted with a rumen cannula, were given a diet of grass silage, molasses, barley, soya bean meal and a mineral mix (70:14:9:6:1 on a dry matter basis) in eight meals a day. Four experimental treatments, consisting of intraruminal infusions of sodium bicarbonate at 0, 300, 600 and 900 g d −1in a 4×4 Latin square design, were used to study the effects of added bicarbonate on the rumen environment and on the predicted rumen degradability of soya bean meal, rapeseed meal and fishmeal. Mean rumen pH values were 6.26, 6.53, 6.73 and 6.87 for the control and bicarbonate treatments, respectively; corresponding values for the fractional outflow of rumen liquid were 0.129, 0.142, 0.151 and 0.153 h−1 (SED 0.01; P>0.05) and for the fractional outflow rates of Cr-mordanted protein particles 0.035, 0.040, 0.048 and 0.054 h−1 (SED 0.001; P<0.01). Sodium bicarbonate had no effect on the disappearance of soya bean meal or rapeseed meal nitrogen from Dacron bags incubated in the rumen, but at the 900 g d−1 level there was an increased nitrogen disappearance from fishmeal at all incubation times; disappearances after 24 h were 0.64 and 0.68 (SED 0.025; P<0.05). Using the values for the disappearance of nitrogen and the outflow rates of Cr-mordanted protein the predicted rumen degradabilities of soya bean meal and rapeseed meal were reduced by about 8% by the 900 g d −1 infusion, but for fishmeal there was no change in degradability since the effects of an increased outflow rate were counter-balanced by an increased rate of loss of nitrogen in the Dacron bag incubations. en
dc.format.extent 7 en
dc.language.iso eng
dc.relation.ispartof Journal of the Science of Food and Agriculture en
dc.rights en
dc.subject rumen outflow en
dc.subject sodium bicarbonate en
dc.subject protein degradability en
dc.title Effect of intraruminal infusions of sodium bicarbonate on the rate of passage and degradation of dietary proteins in cows given a silage-based diet en
dc.type /dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article en
dc.identifier.doi https://doi.org/10.1002/jsfa.2740420402
dc.contributor.institution Department of Biological, Environmental and Rural Sciences en
dc.description.status Peer reviewed en


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