Show simple item record

dc.contributor.authorJudson, H. G.en
dc.contributor.authorEdwards, Granten
dc.date.accessioned2019-01-09T22:22:19Z
dc.date.issued2016en
dc.identifier.citationJudson, H.G., & Edwards, G.R. (2016). Urinary nitrogen concentration from dairy heifers grazing kale supplemented with either plantain or perennial ryegrass baleage in winter. Journal of New Zealand Grasslands, 78, 99-102.en
dc.identifier.issn2463-2872en
dc.identifier.urihttps://hdl.handle.net/10182/10425
dc.description.abstractThe effect of feeding two different supplements (perennial ryegrass or plantain baleage) on urinary nitrogen (N) excretion from dairy heifers (8 months old, 180 kg liveweight (LW)) grazing kale was examined in two successive winters. Heifers (n=90 and 80 in Years 1 and 2, respectively) were offered 2.5 kg DM kale/100kg LW/day and approximately 3 kg DM/heifer/day of either perennial ryegrass or plantain baleage. Urine samples were collected 2-4 times throughout winter, acidified and frozen before N analysis. Despite similar apparent N-intake, urinary N concentration from heifers supplemented with plantain baleage (0.36% N) was lower (P<0.05) than those supplemented with perennial ryegrass baleage (0.53% N). Creatinine concentrations in urine and observations of urination frequency suggest some of the decrease in urinary-N concentration may be due to increases in urine volume when heifers were fed plantain baleage. Liveweight gain (g/heifer/day) was similar (P>0.05) for heifers fed either supplement. The results indicate that feeding plantain baleage to dairy heifers grazing kale in winter may be a useful approach to decrease the N loading in urine patches with subsequent reductions in nitrate leaching.en
dc.format.extent99-102en
dc.language.isoenen
dc.publisherNZ Grassland Associationen
dc.relationThe original publication is available from - NZ Grassland Association - https://www.grassland.org.nz/viewpublication.php?pubID=399en
dc.rights© The Authors, 2016en
dc.subjectdairy heiferen
dc.subjectkaleen
dc.subjectplantainen
dc.subjecturinary nitrogenen
dc.titleUrinary nitrogen concentration from dairy heifers grazing kale supplemented with either plantain or perennial ryegrass baleage in winteren
dc.typeJournal Article
lu.contributor.unitLincoln Universityen
lu.contributor.unitFaculty of Agriculture and Life Sciencesen
lu.contributor.unitDepartment of Agricultural Sciencesen
lu.contributor.unitResearch Management Officeen
lu.contributor.unit/LU/Research Management Office/2018 PBRF Staff groupen
dc.subject.anzsrc0702 Animal Productionen
dc.subject.anzsrc070204 Animal Nutritionen
dc.subject.anzsrc070306 Crop and Pasture Nutritionen
dc.relation.isPartOfJournal of New Zealand Grasslandsen
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.publication-statusPublisheden
pubs.publisher-urlhttps://www.grassland.org.nz/viewpublication.php?pubID=399en
pubs.volume78en
dc.identifier.eissn2463-2880en
lu.identifier.orcid0000-0003-4165-007X


Files in this item

Default Thumbnail

This item appears in the following Collection(s)

Show simple item record