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Dennis K. Gomez,Casiano H. Choresca Jr,Ji Hyung Kim,Se Chang Park 한국실험동물학회 2007 Laboratory Animal Research Vol.23 No.1
Sensitivity of diagnostic methods for detection HPV infection at earlier stages of shrimp is very important for the prevention of widespread and losses in shrimp hatcheries. The earliest postlarval stage detected with HPV infection was 3 days old (PL₃ The presence of hypertrophied nucleus in the hepatopancreas tubule epithelial cell diagnostic of HPV intranuclear inclusion body is indicative of HPV infection. Histological method (H&E) was significantly (P < 0.01) sensitive than impression smear in the diagnosis of HPV infection in Penaeus monodon postlarvae (PL₃ to PL₂₉) reared at two stocking densities (25 and 50 PL/liter). This study showed low diagnostic suitability of Giemsa impression smear and advantage of histological method when HPV infection prevalence is low. There was no significant increase in the detection rate of HPV infection in postlarval stages at two rearing densities.
Isolation of Serratia fonticola from pirarucu Arapaima gigas
Choresca Jr, Casiano H.,Kim, Ji-Hyung,Gomez, Dennis K.,Jang, Hwan,Joh, Seong Joon,Park, Se Chang The Korean Society of Veterinary Science 2008 大韓獸醫學會誌 Vol.48 No.1
The pirarucu, Arapaima gigas (body weight = 18.3 kg and total length = 102 cm) which had been reared in one of the private commercial aquaria for exhibition was found dead and submitted for diagnostic examination. A pure bacterial culture was isolated from the kidney, which was enlarged, and contained fluids. Result of the bacterial identification yielded Serratia fonticola. This paper describes the first isolation of S. fonticola from pirarucu.
Choresca, Casiano H. Jr.,Gomez, Dennis K.,Han, Jee-Eun,Shin, Sang-Phil,Kim, Ji-Hyung,Jun, Jin-Woo,Park, Se-Chang The Korean Society of Veterinary Science 2010 大韓獸醫學會誌 Vol.50 No.4
Moribund albino catfish, Clarias sp., displayed from an indoor private commercial aquarium were submitted in the laboratory for diagnostic examination. Dense culture of bacteria was recovered from the kidney and was characterized using Vitek System 2 and showed 98% probability to Aeromonas (A.) hydrophila. PCR result showed positive using A. hydrophila extracellular hemolysin gene ahh1 (130 bp) and aerolysin gene aerA (309 bp). The 16S rRNA gene was identical and exhibited 97% sequence similarity with the other known isolates of A. hydrophila available in the GenBank. In this paper, we reported the isolation and molecular detection of A. hydrophila from an albino catfish.
Occurrence of Goiter in Flowerhorn Cichlid (Family : Cichlidae) and Its Effect on Liver
신상필,지향,김지형,Dennis K. Gomez,Casiano H. Choresca Jr,한지은,김대용,박세창 한국임상수의학회 2010 한국임상수의학회지 Vol.27 No.2
A flowerhorn fish with a subopercular mass, which had been reared in one of the private commercial aquaria was sent to the laboratory just before death. This fish began to show symptoms such as lethargy, anorexia, depression and dyspnea, and eventually died. The mass and intestinal organs were examined histopathologically. Thyroid showed variably sized follicles that contained abundant colloid and liver revealed steatosis. This report presents a case of goiter in the flowerhorn cichlid and its effect on the liver.