摘要
本文通过查阅和全面分析观测点典型气象资料，依据牧草开始生长发育的温度指标，结合降水量、温度，以及牧草营养成分变化、羊群放牧活动的明显季节性变迁、羊只体重动态，将高原牧区季节划分为暖、冷两个季节，并按已划分季节采取５４只各类半细毛羊的毛样，分析羊毛氨基酸含量和总含硫量，从量化指标上反映出暖季和冷季不同的生态作用。
The seasons of plateau pastoral area were divided into warm
season andcold on the basis of the sprouting temperature for forage grass,precipitation,air
humidi-ty,the variations of herbage nutrition and places for grazing sheep,and sheep
weightchange. There are differences of ecological effects between warm season and cold
sea-son. The amounts of methionine,alaine,valine,isoleucine,and total amount of sul-phur in
amino-acids in warm season are higher than those in cold season. Wool grown n warm
season is superior to that in cold season.
出处
《家畜生态》
1994年第2期4-8,共5页
Ecology of Domestic Animal
关键词
季节
氨基酸
高原牧区
半细毛羊
Season
Amino-acid
Ecological
effect
Plateau pastoral area
