This article illustrates how important it is to check the fish health, treat or quarantine new fishes before introducing to your tank.
| Aquaculture |
| Volume 379, Number 7 (February 2013) |
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Naturally infected channel catfish (Ictalurus punctatus) concurrently transmit Ichthyophthirius multifiliisand Edwardsiella ictalurito naïve channel catfish |
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Authors: |
De-Hai Xu, Craig A. Shoemaker, Qizhong Zhang, Phillip H. Klesius |
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Author Affiliations: |
| no affiliations available |
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Source: |
Aquaculture, Volume 379, Number 7 (February 2013) |
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Page Numbers: |
133 – 136 |
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Available Full Text: |
| Full Text: |
Subscription Required to view full text |
| Format: |
PDF |
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Unknown |
| Location: |
Publisher’s Site |
| Authentication: |
Publisher’s Site |
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Abstract: |
There is no information available whether fish naturally coinfected with Ichthyophthirius multifiliis(Ich) and Edwardsiella ictalurican concurrently transmit both pathogens to naïve fish. The objective of this study was to expose naïve channel catfish (Ictalurus punctatus) to naturally infected fish that carried Ich and E. ictalurito provide clinical evidence for transmission of both pathogens. Three tanks of fish were exposed to naturally coinfected fish and two tanks were utilized as mock-infected controls in each of two trials. In trial I, 34 out of 60 fish (56.7%) exposed to two infected fish per tank died at day one. All remaining fish died two days post exposure. Of the dead fish, all showed heavy Ich infection and E. ictaluriwas isolated from the kidney of 60% of the dead catfish. In trial II, the cumulative mortality in fish exposed to 2 coinfected fish per tank was less than 20% during days 1–7 post exposure. Most of the fish died from 8 to 14days post exposure to the coinfected fish. Ninety-six percent of fish were positive for both Ich and E. ictaluriin trial II. The results demonstrated that fish naturally coinfected with Ich and E. ictaluricould concomitantly transmit both pathogens to naïve fish. In aquaculture management, precaution is needed to thoroughly examine fish prior to shipment or purchase to prevent the spread of aquatic animal pathogens. |
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Citation: |
De-Hai Xu, Craig A. Shoemaker, Qizhong Zhang, Phillip H. Klesius . Naturally infected channel catfish (Ictalurus punctatus) concurrently transmit Ichthyophthirius multifiliisand Edwardsiella ictalurito naïve channel catfish. Aquaculture, Volume 379, Number 7 (February 2013), pp. 133-136, <http://ejournals.ebsco.com/direct.asp?ArticleID=4443A314A0E5EB1B9A39> |
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URL: |
http://ejournals.ebsco.com/direct.asp?ArticleID=4443A314A0E5EB1B9A39 |
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