Passage of Host Serum Components, including Antibody, across the Digestive Tract of Dermacentor variabilis (Say)

Abstract

(14 wk postinfection), the death rates were 36 and 40% in group A and B respectively, compared to 8% in the noninfected control (Table I). Metacercarial production was high and continued for at least 50 days after the prepatent period (Table I). The procedure described appears to be valuable and useful for the cultivation of k postinfection), the d ath rates w re 36 40% in group A and B resp ctively, comed to 8% in the no infect d control (Table aquatic species of Lymnaea and for mass producti n of metacercariae of Fasciola gigantica. The m thod is simple and time saving and makes possible mass production of snails. The growth rate of juvenile snails was fast and the mortality of both noninfected and infected snails was low. ic species of Lymnaea nd for mass proio of metacercariae of Fasciola gi antie ethod is simple and time saving and s possible mas production of snails. The t rate of juvenile snails was fast and the