EN
Investigations were made on influence of drying, freezing (-4°C), sunlight, calcium oxide, calcium hypochlorite, ammonium hydroxide, cupric sulphate, Pollena Jod K and Neguvon on hatchability and vitality of the coracidia of Bothriocephalus gowkongensis.The experiments showed that the eggs of tapeworm of Bothriocephalus gowkongensis were susceptible to drying, temperature -4°C, calcium oxide, calcium hypochlorite and Pollena Jod K. Ovicidal effect of the other chemical compounds and direct sunlight was not effective.