Method for producing egg yolk antibody for preventing or treating calf digestive diseases and egg yolk antibody produced thereby and the use thereof

The present invention relates to: a method for producing an egg yolk antibody for preventing or treating calf digestive diseases, which comprises producing a heterologous antibody by using a calf digestive disease-causing bacterium or a viral antigen, and then inoculating a laying chicken with a complex that binds the antigen and the heterologous antibody, thereby producing the yolk antibody; theegg yolk antibody produced thereby and the use thereof. According to the invention, the method for producing an egg yolk antibody for preventing or treating calf digestive system diseases realizes mass production and production of an egg yolk antibody by injecting an antigen-heterologous antibody complex into an egg laying chicken, the egg yolk antibody produced thereby has high specificity and binding properties with respect to calf digestive system disease pathogenic bacteria or virus, and can effectively inhibit the growth of the bacteria and virus, thereby preventing or treatment calf digestive system diseases. 本发