Astragalus-polyferose-containing premix for pigs and preparation method thereof

The invention relates to an astragalus-polyferose-containing premix for pigs, which comprises the following components in parts by weight: 15 to 50 parts of astragalus polyferose, 1 to 5 parts of selenium, 20 to 55 parts of calcium, 1 to 20 parts of copper, 1 to 20 parts of zinc, 5 to 10 parts of manganese, 2 to 5 parts of iodine, 1 to 5 parts of vitamin A (VA), 2 to 10 parts of vitamin D3 (VD3), 2 to 10 parts of vitamin E (VE), 5 to 10 parts of vitamin K3 (VK3), 3 to 10 parts of vitamin B1 (VB1), 12 to 30 parts of vitamin B2 (VB2), 1 to 5 parts of vitamin B6 (VB6), 1 to 5 parts of vitamin B12 (VB12), 20 to 60 parts of pantothenic acid, 50 to 80 parts of nicotin, 150 to 250 parts of rock flour, and 100 to 230 parts of corn cob meal. The invention also relates to a preparation method, which comprises the steps of extracting astragalus polysaccharide; preparing astragalus polyferose; and mixing materials and the like. The premix has a simple manufacture process and lower cost, can effectively strength the body immunity, improves the survival rate of piglets, ensures nutrition of the piglets to be more balanced and more comprehensive, and is a safe and reliable astragalus-polyferose-containing premix for pigs.