The Evaluation Of Natural Grassland Nutrition At East Wuzhumuqinqi In Inner Mongolia

In this study, three samples points and ten grass populations collected in2011, and ten samples points and twenty grass populations in2012were as objects. Then measured roughly nutrients and detergent fiber, and calculate the relative feed value (RFV), also measured the content of mineral elements:calcium and phosphorus. Test results are as follows:1. The third samples contained a higher content of crude protein, calcium, and neutral detergent soluble, while a lower crude fiber content and lignin content, but the RFV has no significant difference. The results of grass populations showed that although several of the forage grass belonged to gramineae family did not have the highest RFV, but the detergent soluble which can be assorted and utilization by animals was relatively high than others. Salsola collina Pall Has the highest content of neutral detergent soluble, reaching82.72%DM in2011.2. In2012, the sixth samples contained a higher content of crude protein and relative feed value, the level is18.7%DM and126.7, these were significantly higher than the other nine samples. Several grasses and legumes are good nutritional value, in addition to, the content of calcium and neutral detergent solubles were1.42%DM and72.8%DM in Oakleaf Goosefoot, these were significantly higher than other populations. The relatively feeding value of Oakleaf Goosefoot was250or more, feeding standards was super.In summary, the varieties is more and the growth are vigorous,so the relatively feeding value is also high in2012compared to2011. These may be associated with the year of precipitation and other climatic factors. The calcium and phosphorus content of forage populations has large changes, so the ratio of calcium and phosphorus should be adjusted to keep it at1:1-1.3in the diet for animals in winter, in order to improve the absorption and utilization for animals.