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营养成份系评定牧草饲用价值的重要指标之一。据统计,青海省有优良牧草194种,在草场中占优势的牧草种,主要属禾本科、莎草科、菊科、蓼科和藜科等。通过近几年草场资源调查,我们分析了四百多种次牧草的营养成份。影响牧草营养成份的因素很多。本文仅对分析结果进行了初步的分析研究,以了解青海省主要牧草种分科营养成份的一般规律。
Nutrient composition is one of the important indexes to evaluate forage value. According to statistics, there are 194 species of excellent forage grass in Qinghai Province, the dominant forage species in the grassland are mainly grass, sedge, Asteraceae, Polygonaceae and Chenopodiaceae. Through the pasture resources survey in recent years, we analyzed the nutritional content of more than 400 kinds of secondary forages. Many factors affect the nutritional content of forage. This paper only analyzes the results of a preliminary analysis of the study to understand the main forage species in Qinghai Province, the general laws of nutrition.