In vivo anthelmintic activity of chelidonine from Chelidonium majus L. against Dactylogyrus intermedius in Carassius auratus.

Dactylogyrus intermedius is one of the most common and serious cause of parasitic diseases of freshwater fish in aquaculture, and can cause morbidity and high mortality in most species of freshwater fish worldwide. To attempt controlling this parasite and explore novel potential antiparasitic agents, the present study was designed to ascertain the anthelmintic activity of Chelidonium majus L. whole plant and to isolate and characterize the active constituents against D.

Effect of sanguinarine from the leaves of Macleaya cordata against Ichthyophthirius multifiliis in grass carp (Ctenopharyngodon idella).

The ciliate Ichthyophthirius multifiliis is one of the most pathogenic parasites of fish maintained in captivity. In this study, effects of crude extracts, fractions, and compounds from the leaves of Macleaya cordata against I. multifiliis were investigated under in vitro conditions by bioactivity-guided isolation method.

[Preparation and characterization of the mAb against Vibrio harveyi].

Aim: To prepare the mAb against Vibrio harveyi and analyse their biological properties.

Methods: 8-week-old female BALB/c mice were immunized with pathogenic V.harveyi GYC1108-1, which was isolated from the diseased great yellow croaker in Zhejiang China in 2003.