The old stand must be killed with a herbicide prior to seeding the brassicas. Brassicas do not grow quickly during hot weather conditions and do not compete very well with other plants. Controlled grazing management should be used when brassicas are pastured to avoid excessive feed wastage. In addition, hay, a permanent pasture, or a stubble field should be available. Several animal health disorders are possible when livestock graze brassicas.
Problems are normally rare.
Pasture Production, for more information. Kale is the most frost tolerant of the brassicas and is the best choice if grazing is going to be extended into December. Kale is an excellent feed for cattle and fattening lambs but should not be used for ewes during the mating season or during later stages of pregnancy. Broadleaf or giant type forage rapes are leafy, upright-growing plants and are best pastured by cattle, mature sheep and goats. The dwarf types are more suitable for fattening lambs.