Wikipedia
Sharemilking, a form of sharefarming, operates in the dairy industry. The application of this model of agriculture occurs particularly commonly in New Zealand. Typically sharemilkers own their own cows, and will often take the herd with them when shifting between properties on "Gypsy Day". The model is not exploitative, and over time, sharemilkers often slowly buy out the landholder, or alternatively use the system as a method to save for their own property.
This practice helps dairy farmers anywhere who do not wish the burdens of owning their own land, as it allows them to focus their investment in livestock and equipment. Sharemilking also profits former dairy farmers who have given up their herds, by providing them with an income from rental of fields, pastures and barns.