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dc.contributor.authorAl-Marashdeh, Omaren
dc.contributor.authorJudson, H. G.en
dc.contributor.authorSchetelat, S.en
dc.contributor.authorPawsey, A.en
dc.contributor.authorEdwards, Granten
dc.date.accessioned2019-10-07T03:59:31Z
dc.date.issued2019en
dc.identifier.citationAl-Marashdeh, O., Judson, H.G., Schetelat, S., Pawsey, A., & Edwards, G.R. (2019). Brief communication: Urinary nitrogen excretion and water balance of dairy heifers fed cut plantain or perennial-ryegrass pastures. New Zealand Journal of Animal Science and Production, 79, 171-173.en
dc.identifier.issn0370-2731en
dc.identifier.urihttps://hdl.handle.net/10182/10993
dc.description.abstractThe objective of our study was to quantify the effect of feeding plantain (PL) or perennial ryegrass (RG) to dairy heifers on urinary nitrogen (N) excretion and water balance. In an indoor cut-and-carry system, four Jersey × Friesian dairy heifers were grouped and randomly assigned to one of two dietary treatments of RG or PL for two weeks. Daily drinking water intake was lower (P=0.010; 2.8 vs 6.9 L), and forage (P=0.038; 53.7 vs 29.1 L) and total (P=0.046; 56.5 vs 36.0 L) water intake were greater for PL than for RG, respectively. Heifers fed PL excreted more (P=0.009) water in faeces and urine than did heifers fed RG (48.9 vs 21.9 L/day, respectively). Urine N% was lower (P=0.008; 0.23 vs 0.62%) and daily urine volume was greater (P=0.003; 35.8 vs 15.1 L/heifer) for PL than those of RG, respectively. Total urinary N excretion was similar between PL (91.1 g/day) and RG (96.7 g/day). These results indicate that, in comparison with RG, feeding PL to dairy heifers does not reduce urinary N output, but reduces urinary N concentration, due to a greater urine volume.en
dc.format.extent171-173 (3)en
dc.language.isoenen
dc.publisherNew Zealand Society of Animal Production (Inc)en
dc.relationThe original publication is available from - New Zealand Society of Animal Production (Inc) - http://www.nzsap.org/view/biblio/volume/79en
dc.rights© The Authorsen
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.subjectdairy heifersen
dc.subjectplantainen
dc.subjecturinary nitrogenen
dc.subjectwater balanceen
dc.subjectryegrassen
dc.titleBrief communication: Urinary nitrogen excretion and water balance of dairy heifers fed cut plantain or perennial-ryegrass pasturesen
dc.typeOther
lu.contributor.unitLincoln Universityen
lu.contributor.unitFaculty of Agriculture and Life Sciencesen
lu.contributor.unitDepartment of Agricultural Sciencesen
lu.contributor.uniten
lu.contributor.uniten
lu.contributor.unitVice Chancellor's Officeen
dc.subject.anzsrc0702 Animal Productionen
dc.subject.anzsrc070204 Animal Nutritionen
dc.relation.isPartOfNew Zealand Journal of Animal Science and Productionen
pubs.confidentialfalseen
pubs.notesCC BY-NC-ND http://www.nzsap.org/system/files/proceedings/brief-communication-urinary-nitrogen-excretion-and-water-balance-dairy-heifers-fed-cut-plantain-or.pdfen
pubs.organisational-group/LU
pubs.organisational-group/LU/Agriculture and Life Sciences
pubs.organisational-group/LU/Agriculture and Life Sciences/AGSC
pubs.organisational-group/LU/Research Management Office
pubs.organisational-group/LU/Research Management Office/2018 PBRF Staff group
pubs.organisational-group/LU/Vice Chancellor's Office
pubs.publication-statusPublisheden
pubs.publisher-urlhttp://www.nzsap.org/view/biblio/volume/79en
pubs.volume79en
lu.identifier.orcid0000-0001-6493-0395
lu.identifier.orcid0000-0003-4165-007X


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