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Quarantine measures |
| The seed and brood shrimps may sometimes
harbour pathogenic microbes particularly viruses without showing external
clinical manifestations. Transport of such seed and broodstock to other
geographic regions for culture purposes may lead to disease outbreaks.
Hence, it is important to screen the seed and broodstock for pathogenic
microorganisms before they are transported to different geographic regions
for aquaculture purposes.
Use of genetically resistant stock for culture purpose Susceptibility of shrimps to various infectious agents appears to be species specific and is probably genetically aquired trait, eg. the yellow head disease has been reported to be specific to Penaeus monodon. Hence, in the shrimp farming areas endemic to yellow head disease culture of other penaeid species such as Penaeus indicus which is known to be resistant to this disease may be helpful in the prevention of yellow head disease. Similar possibilities may be explored to prevent other such epizootics. |
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