Silage aftermaths have been used to reduce the stocking rate of the flock in mid season when the lambs are eating more grass. When straw is fed as the only source of roughage to housed pregnant ewes, aftermaths are not available so different grazing management may be required.

1. 1. 29 ewes and their lambs grazed initially at 22 ewes/ha reducing to 15 ewes/ha when aftermaths become available (control).

2. 2. 29 ewes and their lambs grazed 8t 22 ewes/ha set stocked through the grazing season.

3. 3. 29 ewes and their lambs grazed at 22 ewes/ha set stocked throughout the grazing season and creep feed offered to the lambs.

4. 4. 29 ewes and their lambs grazed at 22 ewes/ha set stocked throughout the grazing and ammonia treated ’ barley straw offered to the ewes and lambs.

Two days after lambing in mid March, the ewes and lambs were turned onto their plots. Each treatment consisted of 22 ewes with twin lambs and 7 ewes with single lambs. Concentrates were fed to the ewes at grass until April 30. On 4 June 1984 the stocking rate for treatment 1 was reduced to 15 ewes/ha when silage aftermaths became available. The grazing area of all treatments received 125 kg/ha N in 3 equal applications during the grazing season.