Used by graziers to denote forage that has high nutritional density rather than just bulk. Pasture described this way typically contains a strong mix of clovers and palatable grasses that drive rapid weight gain in cattle or sheep. It implies the land is highly fertile and the sward is in prime condition for finishing animals.
Heard on the job
Turn the weaned calves out into the bottom meadow, the grass down there's battle enough to put some quick weight on them.