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https://hdl.handle.net/1959.11/3858
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ouellet, D R | en |
dc.contributor.author | Demers, M | en |
dc.contributor.author | Zuur, G | en |
dc.contributor.author | Lobley, G E | en |
dc.contributor.author | Seoane, J R | en |
dc.contributor.author | Nolan, John Vivian | en |
dc.contributor.author | Lapierre, H | en |
dc.date.accessioned | 2009-12-16T16:04:00Z | - |
dc.date.issued | 2002 | - |
dc.identifier.citation | Journal of Dairy Science, 85(11), p. 3013-3025 | en |
dc.identifier.issn | 1525-3198 | en |
dc.identifier.issn | 0022-0302 | en |
dc.identifier.uri | https://hdl.handle.net/1959.11/3858 | - |
dc.description.abstract | The effect of dietary fiber on endogenous N secretion was studied using a ¹⁵N isotope dilution technique in four fistulated Holstein cows. Two isonitrogenous diets differing only in fiber (NDF and ADF) content were used in a crossover design. One diet (HF) contained 37.4% NDF, while the other (LF) contained 23.3%. A new model was developed to estimate endogenous N secretions and losses for the preintestinal, intestinal, and the total sections of the gastrointestinal tract. Three precursor pools: TCA-soluble fraction of plasma, intestinal mucosa, and milk were compared. Although endogenous losses estimated with the model were numerically different for each precursor pool selected (TCA-soluble fraction > mucosa > milk), treatment effects were similar. As intestinal mucosa is probably closest to the precursor pool, these data are discussed. Non-urea N endogenous secretions contributed 13% of the duodenal N flow but were not affected by the fiber content of the diet. The nonurea N endogenous flow at the duodenum was comprised of approximately equal inputs from endogenous N direct, and that incorporated into the microbial biomass. Total endogenous N flows at the duodenum exceeded, by nearly twofold, estimated inputs of urea-N to microbial biomass. Metabolic fecal output averaged 17% of fecal N and was not affected by level of dietary fiber, but net losses from secretions occurring in the small intestine were higher with the low fiber diet. Overall, endogenous N secretions represented 30% of total digestive tract protein synthesis. | en |
dc.language | en | en |
dc.publisher | Elsevier Inc | en |
dc.relation.ispartof | Journal of Dairy Science | en |
dc.title | Effect of Dietary Fiber on Endogenous Nitrogen Flows in Lactating Dairy Cows | en |
dc.type | Journal Article | en |
dc.subject.keywords | Animal Nutrition | en |
local.contributor.firstname | D R | en |
local.contributor.firstname | M | en |
local.contributor.firstname | G | en |
local.contributor.firstname | G E | en |
local.contributor.firstname | J R | en |
local.contributor.firstname | John Vivian | en |
local.contributor.firstname | H | en |
local.subject.for2008 | 070204 Animal Nutrition | en |
local.subject.seo2008 | 830302 Dairy Cattle | en |
local.profile.school | School of Environmental and Rural Science | en |
local.profile.email | jnolan@une.edu.au | en |
local.output.category | C1 | en |
local.record.place | au | en |
local.record.institution | University of New England | en |
local.identifier.epublicationsrecord | pes:465 | en |
local.publisher.place | United States of America | en |
local.format.startpage | 3013 | en |
local.format.endpage | 3025 | en |
local.peerreviewed | Yes | en |
local.identifier.volume | 85 | en |
local.identifier.issue | 11 | en |
local.contributor.lastname | Ouellet | en |
local.contributor.lastname | Demers | en |
local.contributor.lastname | Zuur | en |
local.contributor.lastname | Lobley | en |
local.contributor.lastname | Seoane | en |
local.contributor.lastname | Nolan | en |
local.contributor.lastname | Lapierre | en |
dc.identifier.staff | une-id:jnolan | en |
local.profile.orcid | 0000-0001-7949-950X | en |
local.profile.role | author | en |
local.profile.role | author | en |
local.profile.role | author | en |
local.profile.role | author | en |
local.profile.role | author | en |
local.profile.role | author | en |
local.profile.role | author | en |
local.identifier.unepublicationid | une:3953 | en |
dc.identifier.academiclevel | Academic | en |
local.title.maintitle | Effect of Dietary Fiber on Endogenous Nitrogen Flows in Lactating Dairy Cows | en |
local.output.categorydescription | C1 Refereed Article in a Scholarly Journal | en |
local.relation.url | http://jds.fass.org/cgi/reprint/85/11/3013.pdf | en |
local.relation.url | http://www.dairy-science.org/cgi/content/abstract/85/11/3013 | en |
local.search.author | Ouellet, D R | en |
local.search.author | Demers, M | en |
local.search.author | Zuur, G | en |
local.search.author | Lobley, G E | en |
local.search.author | Seoane, J R | en |
local.search.author | Nolan, John Vivian | en |
local.search.author | Lapierre, H | en |
local.uneassociation | Unknown | en |
local.year.published | 2002 | en |
Appears in Collections: | Journal Article |
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