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1. In a grazing trial with sheep, cocksfoot, ryegrass and tall fescue were grown with and without white clover, under ‘short’ and ‘long’ management systems, and also white clover.2. Live weights were recorded every 2-3 weeks, and wool production was estimated by clipping midside patches every month.3. Sheep on grass plus clover plots were significantly superior to sheep on grass plots in terms of live-weight gain, final live weight and clean-wool production.4. Sheep on ‘long’ pastures were significantly heavier than sheep on ‘short’ pastures for a month in the early part of the trial. Thereafter, differences in live weight were not significant.

1. In a grazing experiment with sheep, cocksfoot, rye-grass and tall fescue were grown with and without white clover, under ‘short’ and ‘long’ management systems.2. One sheep on each plot was fitted with an oesophageal fistula, from which herbage samples were collected at fortnightly intervals. The botanical composition of samples from the mixed swards was estimated by an optical point quadrat method. Samples were analysed for crude protein and cellulose, and digestibility was estimated in vitro.3. Treatment difference within the mixed swards were not significant in terms of botanical composition. The mean proportions selected were 73% grass, 9% clover and 18% dead matter. The proportion of clover selected did not differ significantly between sample collections.

1. The rate of clean wool production, carcass apparisal and reticulo-ruminal development of grazing sheep were used to evaluate differences in pasture quality. Perennial ryegrass, cocksfoot and tall fescue pastures were assessed as pure stands and also white clover.

1. An experiment was conducted in which lambs grazed on pastures of cocksfoot, ryegrass and tall fescue grown with and without white clover, as well as on pastures of pure white clover.