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Chăn nuôi

Nguyễn Văn Thoại; Nguyễn Đức Tân; Nguyễn Hữu Hưng; Nguyễn Văn Thoại(1)

Nghiên cứu vòng đời giun Gnathostoma Spinigerum trên chó ở các tỉnh Phía Nam

Experimental study on the life cycle of Gnathostoma spingerum worms in some provinces in Southern Vietnam

Nông nghiệp và Phát triển Nông thôn

2014

19

84-89

1859-4581

Gnathostoma spinigerum; Phát triển; Vật chủ trung gian; Vật chủ cuối cùng

Experimental studies have demonstrated that the life cycle of the G. spinigerum worm essentially involves 3 hosts: the egg in the faeces of dog are an ovum in one or two celled stage. The eggs develop in water and the second-stage larvae hatch in 7-18 days. The larvae are ingested by the first intermediate host (Microcyc1ops varicans, Mesocyc1ops leuckarti), early third stage larvae mature in cyclop at day 7-14 post infection. When the cyclop are ingested by the second intermediate host (snakehead fish, eels and frogs). The advanced third stage larvae are eventually surrounded by a cyst in the muscle or liver at day 29-45. The definitive host (dog) are infected by eating nakehead fish, eels and frogs. The adult worms take about 112-123 days to become mature in the stomach of dog.

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