Chemical composition of pastures in relation to grass tetany in beef breeding cows

摘要

Pastures from 27 sites (19 farms), mainly in the Hawke's Bay district, were sampled during an outbreak of grass tetany in beef breeding cows. Pastures were generally ryegrass-dominant, with little clover at grazing height, and were mainly closely grazed. Chemical analyses gave the following results (mean value and range of values. ) :-