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Please use this identifier to cite or link to this item: http://hdl.handle.net/11019/425

Title: A note on the design and testing of single teatcups for automatic milking systems
Authors: O'Callaghan, Edmund J
Berry, Donagh P.
Keywords: Automatic milking
Milking Machine
Teat cup
Issue Date: 2008
Publisher: Teagasc, Oak Park, Carlow, Ireland
Citation: E. O’Callaghan and D. Berry. A note on the design and testing of single teatcups for automatic milking systems. Irish Journal of Agricultural and Food Research, 2008, 47, 205–209
Series/Report no.: Irish Journal of Agricultural and Food Research;vol 47
Abstract: In automatic milking units single independent teatcups or shell/liner combinations are required. The milking characteristics of three designs of single-teatcup milking units were compared with a conventional milking unit in a pipeline milking system. The combined weight of each single-teatcup shell and liner used in the single-teatcup units was 0.18 kg, 0.38 kg or 0.56 kg. The conventional milking cluster had a claw volume of 150 mL and a weight of 3.16 kg. The single sets of teatcups were applied manually and removed automatically when milk flow from the four teatcups reached 0.2 kg/min. The experiment involved a latin square design with four groups of Friesian cows (10 cows/group), four 2-day periods and four treatments. At a flow rate of 4 L/min during simulated milking the mean vacuum level at the teat-end (artificial teat) during the “bphase” of pulsation was 43.8 kPa with the conventional milking unit and 33 kPa for the three single-teatcup units. The corresponding mean and minimum teat-end vacuum in the “d-phase” were 38.46 kPa and 29.54 kPa, respectively, for the conventional system and 24.95 kPa and 17.59 kPa, respectively, for the single-teatcup configuration. The light teatcup (weight 0.18 kg) gave longer time to milk letdown, longer milking time and both lower peak and average milk flow than the conventional cluster.
Description: peer-reviewed
URI: http://hdl.handle.net/11019/425
ISSN: 0791-6833
Appears in Collections:IJAFR volume 47, 2008
Animal & Bioscience
Livestock Systems

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