n 2001, Massey University set up its Dairy Cattle Research Unit (DCRU) as a system comparison between organic and conventional farming. It is the only comparative grassland-based open grazing dairy study in the world. The DCRU was split into two similar farmlets; an organic unit of 20.4 ha carrying about 46 cows (2.27 cows/ha) and a conventionally farmed unit of 21.3 ha carrying about 51 cows (2.39 cows/ha). Each of the two units is managed individually according to “best practice” for its particular type of management system. No attempt is made to replicate on one farm what is done on the other. The project has been described in detail by Kelly et al. (2006).

A, Thatcher, KR Petrovski, and K Fraser

Proceedings of the New Zealand Society of Animal Production, Volume 70, Palmerston North, 316-318, 2010
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