Grassland farming and minerals in cattle.

Data reported earlier by J.A. Keuning [Stikstof (1974) 76, 87] on the mineral composition of grass samples from intensively managed farms in the Netherlands in 1962-1971 are tabulated and discussed in relation to mineral requirements (K, Na, Cl, Ca, P and Mg) of grazing high-yielding dairy cows. The effect of N fertilizer on the nitrate content in grass and other roughages is also considered in relation to the origin and prevention of nitrate poisoning in cattle. (Abstract retrieved from CAB Abstracts by CABI’s permission