MIXED LIVE VACCINE OF TRANSMISSIBLE GASTROENTERITIS VIRUS, PORCINE EPIDEMIC DIARRHEA VIRUS AND PORCINE ROTAVIRUS, AND THE VACCINATION METHOD USING THE SAME

摘要

A mixed live vaccine of transmissible gastroenteritis virus, porcine epidemic diarrhea virus and porcine rotavirus, and a vaccination method by using the same live vaccine are provided to prevent diarrhea of pigs at one time, reduce vaccination time, and minimize titer loss of attenuated viruses by using trehalose. The mixed live vaccine is prepared by mixing a transmissible gastroenteritis virus(KCTC 10889BP), a porcine epidemic diarrhea virus(KCTC 10891BP) and a porcine rotavirus(KCTC 10890BP) in a weight ratio of 1:1:1, and adding a trehalose phosphate glutamate gelatin mixture. The mixed live vaccine is vaccinated by vaccinating a mother pig with the mixed live vaccine one time, and vaccinating the first vaccinated mother pig with the vaccine of transmissible gastroenteritis virus(KCTC 10889BP) and porcine epidemic diarrhea virus(KCTC 10891BP) two times.