Balance of forage production of cool-season grasses and ligneous species in relation to grazing animals demands

The demands of animals is almost constant during the year but forage production is insufficient mainly in Spring and early Summer. The gap of forage quantity and quality can be covered by using cool-season grasses for the winter and ligneous species for the summer. Cool-season grasses were of high quantity and quality during winter. The production of Agropyron cristatum was significantly higher than the other two species Dactylis glomerata and Festuca valesiaca. Amorpha fruticosa and Morus alba had also higher production than Colutea arborescens from July to September. Crude protein content of all species can meet the goats demands for maintanance and lactation during critical periods.