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A study of factors affecting the efficiency of milking operations.
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2005-01-01
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eopr-5063.pdf
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O’Callaghan, E.J., Murphy, P.M., Gleeson, D.E., A study of factors affecting the efficiency of milking operations, End of Project Report, Teagasc, 2005.
Abstract
With a mid-level milking system the milking time was reduced significantly
when the teat end vacuum was increased
• Vacuum losses were lower and milking time was shorter with simultaneous
pulsation than with alternate pulsation
• Milk yield was not affected by the magnitude of teat end vacuum.
• Both the mean flowrate and peak flowrate increased when the teat end vacuum
was increased.
• New milking plants and conversions should have 16 mm bore long milk tubes
(LMT) and 16 mm bore entries in the milk pipeline
• The omission of udder washing as a pre-milking preparation procedure did not
influence milking characteristics.
• TBC and E. coli were significantly reduced with full pre-milking preparation
compared to no pre-milking preparation when milk was produced from cows on
pasture
• Counts for individual bacterial species were well below maximum numbers
permitted in EU Council Directive (Anon. 1992) when no pre-milking
preparation was carried out.