The role of tubificid worms as an intermediate host in the life cycle ofMyxobolus pavlovskii (Akhmerov, 1954)
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Myxobolus pavlovskii from the gills of silver carp (Hypophthalmichthys molitrix) were used in attempts to transmit the infection under laboratory conditions. Spores ofM. pavlovskii were placed in aquaria that contained sterilized sand and had been filled with tap water at 15–16°C. Furthermore, oligochaetes (90%Tubifex tubifex) were added and examined by wet mounts and histology,Hexactinomyxon spores developed after about 3 months only inT. tubifex that had been exposed toM. pavlovskii. Myxosporea-free silver carp developed cysts in their gills that containedM. pavlovskii at 120 days after contact withHexactinomyxon spores, proving thatM. pavlovskii also needs an oligochaete intermediate host for its development.
KeywordsLife Cycle Laboratory Condition Intermediate Host Silver Carp Tubifex Tubifex
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- Bykhovskaya-Pavlovskaya IE (1964) Key to parasites of freshwater fish of the USSR. U.S. Department of the Interior, National Science Foundation, Washington, DC (Jerusalem, Progress in Science Translation)Google Scholar
- El-Matbouli M, Hoffmann RW (1989) Experimental transmission of twoMyxobolus spp. developing bisporogeny via tubificid worms. Parasitol Res 75:461–464Google Scholar
- El-Matbouli M, Hoffmann RW (1990) Effect of freezing, ageing and passage through the alimentary canal of predatory animals on the viability ofMyxobolus cerebralis spores. J Aquat Anim Health (in press)Google Scholar
- Janiszewska J (1955) Actinomyxidia: morphology ecology, history of investigations, systematics, development. Acta Parasitol Pol II (20):405–437Google Scholar
- Janiszewska J (1957) Actinomyxidia: II. New systematics, sexual cycle, description of new genera and species. Zool Pol 8:3–34Google Scholar
- Molnar K (1979)Myxobolus pavlovskii (Akhmerov, 1954) (Myxosporidi)-infection in the silver carp and bighead. Acta Vet Acad Sci Hung 27:207–216Google Scholar
- Wolf K, Markiw ME (1984) Biological contravenes taxonomy in the Myxozoa: new discoveries show alternation of invertebrate and vertebrate hosts. Science 225:1449–1452Google Scholar