BACTERIOLOGICAL STUDY OF GRASS CARP (CTENOPHARYNGODON IDELLA) MORTALITY IN KHUZESTAN PROVINCE

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ALISHAHI M.; SOLTANI MAHDI; ZARGAR A.

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Journal: SCIENTIFIC-RESEARCH IRANIAN VETERINARY JOURNAL Year:2009 | Volume:4 | Issue:5 (22) Page(s): 25-34

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Title

BACTERIOLOGICAL STUDY OF GRASS CARP (CTENOPHARYNGODON IDELLA) MORTALITY IN KHUZESTAN PROVINCE

Author(s)

ALISHAHI M. | SOLTANI MAHDI | ZARGAR A. | Issue Writer Certificate

Keywords

GRASS CARP (CTENOPHARYNGODON IDELLA)Q2

MORTALITYQ3

AEROMONADSQ2

KHOUZESTANQ2

Abstract

The presumptive interfere of bacterial agents in Grass carp (Ctenophmyngodon idella) MORTALITY in Khuzestan province were investigated. Three hundred Moribund fish from 20 farms with highest grass carp MORTALITY in the last few years were taken for bacteriological study. After transferring to the lab, fish were dissected and bacteriological samples of some internal organs (kidney, liver and spleen) were taken using Triptic Soy Agar (TSA) media. Isolated bacteria were identified using standard bacteriological methods. Bacterial infection was seen only in 53 fish. The bacterial species include Aeromonas hvdrophila (33), Aeromonas veroni (12) and Aeromonas sohria (8). LD50 of representative of each bacteria were calculated according to Reed and Muench to determine their pathogenicity in grass carp. Results show that A.veroni and A.sohria are not pathogenic to grass carp but A.hyvdrophila was slightly pathogenic with LD50 = 1.1 * 107 . Regarding the results of this study, the sever MORTALITY in grass carp can't be caused by these bacterial agents primarily. Although some aero monads were isolated from moribund fish. Low proportion of infected fish to these bacteria and lack of bacterial virulence shows that the bacteria are secondary infection and more investigation should be conducted to find the real cause of MORTALITY. Meanwhile, this is the first report of Aeromonas sohria's isolation in Iran.

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APA: Copy

ALISHAHI, M., SOLTANI, MAHDI, & ZARGAR, A.. (2009). BACTERIOLOGICAL STUDY OF GRASS CARP (CTENOPHARYNGODON IDELLA) MORTALITY IN KHUZESTAN PROVINCE. SCIENTIFIC-RESEARCH IRANIAN VETERINARY JOURNAL, 4(5 (22)), 25-34. SID. https://sid.ir/paper/97444/en

Vancouver: Copy

ALISHAHI M., SOLTANI MAHDI, ZARGAR A.. BACTERIOLOGICAL STUDY OF GRASS CARP (CTENOPHARYNGODON IDELLA) MORTALITY IN KHUZESTAN PROVINCE. SCIENTIFIC-RESEARCH IRANIAN VETERINARY JOURNAL[Internet]. 2009;4(5 (22)):25-34. Available from: https://sid.ir/paper/97444/en

IEEE: Copy

M. ALISHAHI, MAHDI SOLTANI, and A. ZARGAR, “BACTERIOLOGICAL STUDY OF GRASS CARP (CTENOPHARYNGODON IDELLA) MORTALITY IN KHUZESTAN PROVINCE,” SCIENTIFIC-RESEARCH IRANIAN VETERINARY JOURNAL, vol. 4, no. 5 (22), pp. 25–34, 2009, [Online]. Available: https://sid.ir/paper/97444/en

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