Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/77929
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dc.contributor.authorNeuheuser, Anna-Lenaen_US
dc.contributor.authorSchwinn, Ann-Catherineen_US
dc.contributor.authorWellnitz, Olgaen_US
dc.contributor.authorHernández Castellano, Lorenzo Enriqueen_US
dc.contributor.authorBruckmaier, Rupert M.en_US
dc.date.accessioned2021-03-04T13:10:18Z-
dc.date.available2021-03-04T13:10:18Z-
dc.date.issued2017en_US
dc.identifier.issn0022-0299en_US
dc.identifier.urihttp://hdl.handle.net/10553/77929-
dc.description.abstractOxytocin release, milking characteristics, and teat condition were investigated with reduced claw vacuum and pulsation settings compared to milking at regular settings with or without pre-stimulation. The reduced vacuum and pulsation settings during low milk flow are expected to protect the teat tissue before the occurrence of milk ejection at the start of milking, and at the end of milking during a potential overmilking period, i.e. at a milk flow <200 g/min. Seven cows were machine-milked either after a 60 s manual pre-stimulation, or without pre-stimulation and reduced vacuum and pulsation settings, or at full vacuum and normal pulsation during the start of milking. Plasma oxytocin (OT) concentration increased similarly in response to manual pre-stimulation and to both milking with reduced, or with full vacuum and pulsation settings, however delayed by 1 min if the cluster was attached without pre-stimulation. In all treatments OT concentrations remained elevated throughout milking. Milk flow curves were mostly non-bimodal at milkings after manual pre-stimulation and bimodal at milkings without pre-stimulation. The main milking time was shorter and average milk flow was higher during milking after pre-stimulation, but did not differ between treatments without pre-stimulation. Milk yields and peak flow rates were not affected by treatments. Either reduced or full vacuum settings were again applied during an intended overmilking from 200 to 100 g/min of milk flow towards the end of milk harvest. Pre-milking teat ultrasound cross sections were recorded one day before the experiment started. Post-milking ultrasound cross sections were performed at 15 min after each experimental milking. Teat wall thickness was increased after milking as compared to pre-milking but did not differ among treatments. In conclusion, OT release and milking performance are similar if milking is performed with pre-stimulation, or without pre-stimulation but reduced claw vacuum and b-phase during low milk flow.en_US
dc.languageengen_US
dc.relation.ispartofJournal of Dairy Researchen_US
dc.sourceJournal of Dairy Research [ISSN 0022-0299], v. 85(1), p. 70 - 77en_US
dc.subject3104 Producción Animalen_US
dc.subject.otherMilkingen_US
dc.subject.otherOxytocinen_US
dc.subject.otherVacuumen_US
dc.subject.otherPulsationen_US
dc.subject.otherDairy cowsen_US
dc.titleReduced claw vacuum and b-phase during low milk flow does not impact oxytocin release and milking performanceen_US
dc.typeinfo:eu-repo/semantics/Articleen_US
dc.typearticleen_US
dc.identifier.doi10.1017/S0022029917000504en_US
dc.identifier.issue1-
dc.investigacionCiencias de la Saluden_US
dc.type2Artículoen_US
dc.utils.revisionen_US
dc.identifier.ulpgcNoen_US
dc.contributor.buulpgcBU-VETen_US
dc.description.sjr0,573
dc.description.jcr1,17
dc.description.sjrqQ2
dc.description.jcrqQ2
dc.description.scieSCIE
item.grantfulltextopen-
item.fulltextCon texto completo-
crisitem.author.deptGIR IUSA-ONEHEALTH 4. Producción y Biotecnología Animal-
crisitem.author.deptIU de Sanidad Animal y Seguridad Alimentaria-
crisitem.author.orcid0000-0003-2729-0434-
crisitem.author.parentorgIU de Sanidad Animal y Seguridad Alimentaria-
crisitem.author.fullNameHernández Castellano, Lorenzo Enrique-
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