Preparation method and application of yolk antibody feed additive powder

The invention discloses a preparation method and application of yolk antibody feed additive powder. The preparation method is characterized by comprising the following steps of: (1) washing and disinfecting high-immunity eggs, separating egg white from yolk by using an egg separator, and uniformly stirring the yolk to obtain yolk liquid; (2) mixing the yolk liquid with acid clay according to a weight ratio of 1: (2-8) or mixing the yolk liquid with corn flour according to a weight ratio of 1: (2-8), and fully and uniformly mixing; (3) adding potassium sorbate into the mixed liquid obtained in the step (2), and uniformly stirring; and (4) putting the mixture obtained in the step (3) into a drying oven, and drying at 50 DEG C for 3-5 hours to obtain the yolk antibody feed additive powder. The yolk antibody feed additive powder has the advantages of low moisture content, unchanged antibody titer and simple and feasible preparation method. 本发明公开了一种卵黄抗体饲料添加粉剂的制备方法及其应用，特点是包括以下步骤：(1)将高免蛋洗干净消毒后，用鸡蛋分离器将蛋清蛋黄分离，卵黄搅拌均匀后制