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dc.contributor.authorBoloña, P. Silvia
dc.contributor.authorUpton, J.
dc.contributor.authorReinemann, D. J.
dc.date.accessioned2021-06-16T08:27:02Z
dc.date.available2021-06-16T08:27:02Z
dc.date.issued2020-02-26
dc.identifier.citationP. Silva Boloña, J. Upton, D.J. Reinemann, Effects of simulated quarter and udder teat cup removal settings on strip milk and milking duration in dairy cows, Journal of Dairy Science, Volume 103, Issue 5, 2020, https://doi.org/10.3168/jds.2019-17266en_US
dc.identifier.urihttp://hdl.handle.net/11019/2425
dc.descriptionpeer-revieweden_US
dc.description.abstractThe aim of this study was to estimate the amount of milk left in quarters and udders and the milking duration for a variety of teat cup removal strategies. A combination of empirical data and simulated quarter and udder teat cup removal settings were used to make these estimates. Milking duration is an important factor in both automatic and conventional milking systems because it directly influences milking efficiency and hence can affect farm profitability. Strategies investigated in the literature to reduce milking duration include the application of different milk flow rate switch-points (milk flow rate at which the milking unit or teat cup is removed). Applying these milk flow rate switch-points can affect the amount of milk that is not harvested (strip milk). We are not aware of previous research analyzing strip milk yield and milking duration at the quarter level, across a range of quarter and udder milk flow rate switch-points. Quarter-level average milking duration decreased by 2 min, and strip milk increased 1.3 kg as quarter milk flow rate switch-point was increased from 0.2 kg/min to 1.0 kg/min. Using an end of milking criterion of removal of the teat cup at 50% of the quarter's rolling average milk flow rate resulted in a 0.4-min reduction in milking duration and a 0.08-kg increase in strip milk per quarter, compared with removal of the teat cup at 30% of the quarter's rolling average milk flow rate. Udder-level average milking duration decreased by 1.4 min, and strip milk increased by 0.76 kg (0.19 kg per quarter) as udder milk flow rate switch-point was increased from 0.2 kg/min to 1.0 kg/min. A 0.8-min reduction in cow milking duration and a 0.27-kg increase in strip milk at the udder level (0.08 kg per quarter) resulted when changing udder milk flow rate switch-point from 30% of the udder rolling average to 50% of the udder rolling average milk flow rate. This study provides quantitative estimates of the effect of teat cup milk flow rate switch-points on milking duration and strip milk yield.en_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofseriesJournal of Dairy Science;103
dc.rightsAttribution-NonCommercial-ShareAlike 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/*
dc.subjectteat cup removal settingen_US
dc.subjectstrip milken_US
dc.subjectmilking durationen_US
dc.subjectmilking efficiencyen_US
dc.titleEffects of simulated quarter and udder teat cup removal settings on strip milk and milking duration in dairy cowsen_US
dc.typeArticleen_US
dc.embargo.terms2021/02/26en_US
dc.identifier.doihttps://doi.org/10.3168/jds.2019-17266
dc.contributor.sponsorTeagasc Walsh Fellowship Programmeen_US
dc.contributor.sponsorUniversity of Wisconsin-Madisonen_US
refterms.dateFOA2021-02-26T00:00:00Z


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  • Livestock Systems [315]
    Teagasc LIvestock Systems Department includes Dairy, Cattle and Sheep research.

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Attribution-NonCommercial-ShareAlike 4.0 International
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-ShareAlike 4.0 International