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Department of Animal Science, University of Nebraska, Lincoln 68503
ABSTRACT
By computer simulation techniques, the milking system was related to the time required to milk and adequacy of milking. Both sideopening and herringbone milking systems, utilizing four milking units, were characterized. Experiment I was a factorial arrangement of treatments involving two variations of five factors: herringbone or sideopening parlor, presence or absence of mechanized crowd gate, presence or absence of group-washing, presence or absence of machine stripping, and high or low milk production. Experiment II involved two variations of three factors: parlor type, parlor efficiency, and priority of chore routine. Elimination of excessive machine stripping improved milking techniques, relaxed working conditions for the milker, and increased the cow per man-hour capacity of the parlor. All mechanization features tended to improve parlor capacity. The descending order of rank, by time saved, is: group washing, herringbone rather than sideopening parlor, and crowd gate. Variations in the operator activity routines did not alter parlor capacity but did result in significant differences in the adequacy of milking.
1 Published with the approval of the Director as paper no. 3559 Journal Series, Nebraska Agricultural Experiment Station, Lincoln.
2 Current address: Extension Dairyman, University of Minnesota, St. Paul 55101.
3 Current address: Dairy Farm Superintendent, Iowa State University, Ames 50010.
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