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dc.contributor.authorAnderson, D.en
dc.contributor.authorAnderson, L.en
dc.contributor.authorMoot, Derrick J.en
dc.contributor.authorOgle, G.en
dc.date.accessioned2020-04-05T21:52:12Z
dc.date.issued2014en
dc.identifier.urihttps://hdl.handle.net/10182/11684
dc.description.abstractFarm systems in the dry sub-humid region of the Upper Waitaki predominantly graze merino ewes on extensive oversown and topdressed hill and high country. Smaller areas of flatter land are used to conserve winter forage crops, and grow supplementary feed and high quality pastures. The slow growth rate of merino lambs means they are traditionally retained on these improved pastures to finish in the following spring. In this system livestock demand peaks in the driest month of January and continues to be high through winter. Bog Roy is a farm that has changed this system and has established 200 ha of lucerne with the goal of fully feeding ewes during lactation. Pre-weaning lamb growth rate has increased from 205 to 235 g/head/day, opening the opportunity to sell heavier lambs in early January. Ewe lamb replacements are reaching heavier pre-winter live weights (38 kg versus 35 kg) and the flow-on effect is higher two-tooth scanning (129% versus 111%) and weaning (100% versus 84%). Lucerne has also improved the feeding of mixed age ewes from lambing to weaning, and lamb mortality has reduced from 30% to 21%, increasing weaning from 115% to 130%. The store production system also means livestock demand is kept low during the dry period and remains low through winter. Conserved feed is now only required for 50 days compared with 100 days in the traditional system. This has reduced supplementary feed costs from $10.33/stock unit (SU) to $4.82/SU. Shifting ewes to rotationally graze lucerne in large mobs early in the growing season has decreased the stocking rate on hill country. This has allowed cover to build during each spring with promising responses from legume species.en
dc.format.extent29-34en
dc.language.isoenen
dc.publisherNZ Grasslands Associationen
dc.relationThe original publication is available from - NZ Grasslands Association - https://www.grassland.org.nz/viewpublication.php?pubID=388en
dc.rights© The Authors and NZGAen
dc.sourceNew Zealand Grasslands Association Conferenceen
dc.subjectlucerneen
dc.subjectMedicago sativa L.en
dc.subjectmerinoen
dc.subjecthill and high countryen
dc.subjectdry environmenten
dc.subjectpasture growthen
dc.titleIntegrating lucerne (Medicago sativa L.) into a high country merino systemen
dc.typeConference Contribution - Published
lu.contributor.unitLincoln Universityen
lu.contributor.unitFaculty of Agriculture and Life Sciencesen
lu.contributor.unitDepartment of Agricultural Sciencesen
dc.subject.anzsrc0703 Crop and Pasture Productionen
dc.subject.anzsrc070302 Agronomyen
dc.relation.isPartOfProceedings of New Zealand Grasslands Associationen
pubs.finish-date2014-11-07en
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/PE20
pubs.organisational-group/LU/Research Management Office/QE18
pubs.publication-statusPublisheden
pubs.publisher-urlhttps://www.grassland.org.nz/viewpublication.php?pubID=388en
pubs.start-date2014-11-05en
pubs.volume76en
lu.identifier.orcid0000-0002-5691-4915
lu.subtypeConference Paperen


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