In the GreenOak Dairy Equipment Catalogue the part number for a portable milk machine for cattle is 488195. The milk machine costs about $1995 Canadian and can be used for various types of cattle (Singh, 2016). However it is manufactured in the United States (Singh, 2016) and then sold in Canada. It is a very advantageous and profitable way to milk animals when you have a small amount of animals to milk or if the milk needs to be separated when an animal has been treated. What causes the milk to be extracted from the udder is the pulsator mechanism. The pulsator mechanism results in a consistent rhythm of the expansion and collapse of the rubber teat cup during the milking of the cow (Clough, P.A. et. al 1953). Every other time there is limited vacuum used and letting out air between lining of the cup and the teat shell of the cup. The liner is consistently applied with the partial vacuum, which is usually 13-15 in. Hg (Clough, P.A. et. al 1953). The milk machine requires very little maintenance, however, the cups of the milking cluster will have to be washed after every milking to keep unnecessary bacteria from going into the milk. Before the operator hooks the milk cluster up to the cow it is necessary to clean the teats with cloth and some sort of disinfecting solution that is present in Nepal.
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