摘要
用饱和烷烃法对不同牧草时期放牧奶牛的采食量进行了测定。结果表明:放牧奶牛在牧草幼嫩期、旺盛期、枯黄期3期的采食量结果分别为:绝对采食量(kg/d)为11.54±0.66、13.83±0.55、5.75±0.32,采食量在牧草旺盛期时达到最高。采食组成幼嫩期以苔草为主、旺盛期以隐子草为主、枯黄期以赖草为主,这与草场植物的生长和奶牛的喜好有关。
The measurement of feed intake of grazing dairy cows was conducted by using alkane in different seasons.The results showed as follows:the daily feed intake of the dairy cows measured by saturated-alkane in young pasture,growing pasture and perishing pasture were:11.54±0.66,13.83±0.55,5.75±0.32(kg/d)respectively.The pasture intake was high in growing pasture.The pasture composition is(Carex siderosticta) in young pasture,in growing pasture is(Cleistogenes songorica Ohwi)and in perishing pasture is(Leymus secalinus Georgi) Tzvel.This is related to pasture growing and cows like.
出处
《中国草食动物》
2009年第3期15-19,共5页
China Herbivores
基金
国家奶业支撑基金
关键词
农牧交错区
放牧奶牛
饱和烷烃
采食量
采食组成
agri-pastoral transitional zone
grazing dairy cow
alkane
pasture intake
pasture composition
