摘要
放牧羊群每分钟平均采食 37.5口 ,细毛羊共采食 4 5个草种 ,占草甸植物种的 90 %。其中兰花棘豆 (Oxytropiscaerulea)等 12种最为喜食 ,占采食量的 96 %。夏季在亚高山草甸放牧 ,是羊群增膘长肉的关键时期。每日纯牧 8h以上 ,才能保证采食到足够的营养。
Sheep grazed an average of 37.5 mouths per minute.Fine wool sheep grazed 45 varieties in all,which accounted for 90 percent of all kinds of varieties.Twelve varieties,such as Oxytropis caerulea ,were favourable,which made up to 96 percent of total.In summer,pasturing on the subalpine meadow was a key period for increasing growth rate.More than 8 hours of grazing time was necessary to meet the nutritive needs.
出处
《山西农业科学》
2001年第3期77-77,共1页
Journal of Shanxi Agricultural Sciences
基金
山西省科委科技攻关项目 (8810 11)
关键词
羊群
放牧
草种
选择
草甸
Sheep
Grazing
Subalpine meadow
Selection to grass vavieties
