论文部分内容阅读
本文采用食道瘘管法取样,对放牧于天然草场的绵羊采食牧草的营养成分进行了研究。结果表明,放牧绵羊在不同类型草地及不同生长期采食牧草的营养价值维持在一个较高的,而且是稳定的水平上。食道瘘管样较人工采摘样含粗蛋白、粗灰分高,含粗纤维低。其中粗蛋白、粗纤维含量在两种样品中的差异随生长季的延长呈增大趋势,从牧草粗蛋白含量高、粗纤维含量低的草地到牧草粗蛋白含量低、粗纤维含量高的草地呈增大趋势。
In this paper, the sampling method of esophageal fistula was used to study the nutritional composition of grazing pasture in natural pasture. The results showed that the nutritional value of grazing sheep in different types of grassland and growing season maintained at a high and stable level. Esophageal fistula samples compared with artificial picking containing crude protein, crude ash content is high, including crude fiber low. The difference of crude protein and crude fiber content in the two samples increased with the growing season. From grassland with high crude protein content and low crude fiber content to grassland with low crude protein content and crude fiber content Showing an increasing trend.