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Blood smears and purified trypanosome from freshwater fishes yellow catfish (Pseudobagras fulvidraco) and common carp (Cyprinus carpio) captured from Niushan Lake, Hubei Province were examined to determine whether all of their trypanosomes were Trypanosoma pseudobagri, a species of supposed host specificity and widespread existence across China.(More)
This study compares the effects of two Lactobacillus strains, highly adhesive Lactobacillus brevis JCM 1170 (HALB) and less-adhesive Lactobacillus acidophilus JCM 1132 (LALB), on the survival and growth, adhesive gut bacterial communities, immunity, and protection against pathogenic bacterial infection in juvenile hybrid tilapia. During a 5-week feeding(More)
The complete small subunit rRNA (SSrRNA) gene sequence (2,142 nucleotides) of the freshwater fish trypanosome Trypanosoma ophiocephali Chen (1964) was determined. The phylogenetic analysis deduced using neighbor-joining, maximum parsimony, and Bayesian methods demonstrated the existence of an “aquatic clade”. T. ophiocephali was revealed to be a member of(More)
Myxobolus shantungensis Hu, 1965 infects gill arches of common carp Cyprinus carpio haematopterus (Temminck and Schlegel), causing serious pathological effects on host fish. An inadequate original description and absence of molecular data make accurate early diagnosis challenging. To augment the original description, M. shantungensis is redescribed here(More)
During the parasite fauna investigation within 2005, the freshwater fish trypanosome Trypanosoma siniperca Chang 1964 was isolated from the blood of Mandarin carp (Siniperca chuatsi) from Niushan Lake, Hubei Province, central China. Blood trypomastigotes were observed only, and the density of infection was low. Light microscopy examinations of this material(More)
Thelohanellus wuhanensis Xiao & Chen, 1993 infects allogynogenetic gibel carp Carassius auratus gibelio (Bloch) forming numerous plasmodia in the skin, resulting in high mortality of juvenile host fish. Within this paper we supplement the identification of this pathogenic species with information on its ultrastructural and histological characteristics.(More)
Myxobolus honghuensis parasitizes the pharynx of the allogynogenetic gibel carp Carassius auratus gibelio (Bloch), an economically important food fish with large consumption rates in China. The fact that it is hard to detect the cysts formed by M. honghuensis without euthanizing the fish and the spores can reach the consumers has prompted us to investigate(More)
During a survey on the myxosporean fauna of gibel carp Carassius auratus gibelio (Bloch) in China, a species of Myxobolus Bütschli, 1882 that did not conform to any known species was found. The species is characterised by the presence of round to ellipsoidal plasmodia of 2.6-4.0 mm in diameter in the palate of host. Mature spores are obovate in frontal view(More)
During the parasite fauna investigation within 2004 and 2005, the freshwater fish trypanosomes were isolated from the blood of dark sleeper (Odontobutis obscura Temminck and Schlegel) and snakehead fish (Ophiocephalus argus Cantor) from Niushan Lake, Hubei Province, China. Blood trypomastigotes were used for light microscopy investigations. The detailed(More)
Redescription of Balantidium ctenopharyngodoni “Chen (Acta Hydrobiol Sin 1:123–164, 1955)”, collected from the hindgut of grass carp (Ctenopharyngodon idella), especially the segment of 6–10 cm upstream from the anus, from Honghu Lake, Hubei Province, central China in November 2005, is presented in this paper to complete Chen’s description at both light and(More)