Compound fermented silage added with roxburgh rose residues as well as preparation method and application of compound fermented silage

The invention relates to compound fermented silage added with roxburgh rose residues. The compound fermented silage is prepared from the following components in parts by mass; wherein the raw materials comprise 210-220 parts of hay; 250 to 270 parts of pennisetum hydridum; 350 to 370 parts of vinasse; 180-200 parts of rosa roxburghii tratt fruit residues; 1-2 parts of a fermentation strain; 1-2 parts of molasses; the hay comprises straw stalks, Qu grass and corn stalks; the fermentation strain contains lactic acid bacteria and an enzyme preparation. According to the compound fermented silage added with the rosa roxburghii tratt residues and the preparation method and application of the compound fermented silage, the hay, the pennisetum hydridum, the vinasse, the rosa roxburghii tratt residues, the fermentation strain and the molasses are matched for use, feed resources are subjected to compound fermented silage treatment, high-digestibility nutrient substances of the feed resources are retained, and the feed