Sheep production in northern China varies between regions and seasons, with similar patterns in all regions. The nutritional problems mainly arise from both predictable and unpredictable seasonal deficits in the amoun...Sheep production in northern China varies between regions and seasons, with similar patterns in all regions. The nutritional problems mainly arise from both predictable and unpredictable seasonal deficits in the amount and quality of forage available. Predictable deficiencies occur during the winter - spring seasons in northern China. Unpredictable deficiencies result from natural calamities, such as drought and heavy snow. These problems prevent high production from sheep.展开更多
文摘Sheep production in northern China varies between regions and seasons, with similar patterns in all regions. The nutritional problems mainly arise from both predictable and unpredictable seasonal deficits in the amount and quality of forage available. Predictable deficiencies occur during the winter - spring seasons in northern China. Unpredictable deficiencies result from natural calamities, such as drought and heavy snow. These problems prevent high production from sheep.