Premix for preparing Altay fattening rams to prevent urinary calculi and preparation method of premix

The invention particularly provides a premix for preparing Altay fattening rams to prevent urinary calculi. The premix is prepared from the following raw materials of spora lygodii, longhairy antenoron herb, chrysanthemum extract, dimethachlon, rare earth, yeast cell walls, fermented cottonseed meal and bran mixture, composite microbial inoculants and composite vitamins by taking saccharomycetes, bacillus subtilis and lactic acid bacteria as fermentation microbial inoculants. The premix for preventing urinary calculus for Altay fattening rams prepared by adopting the technical scheme provided by the invention can significantly reduce the urinary calculus morbidity of Altay fattening rams, and the pH condition of urine of Altay fattening rams is significantly lower than that of urine of other groups, and is superior to that of urine of other groups through urinary sediment microscopic examination. The premix has the characteristics of simple components, low cost, nature, greenness, no toxicity, harmlessness an