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Field application of several management chemicals in shrimp rearing ponds
Johnson, S.K.; Holcomb, H.W. (1975). Field application of several management chemicals in shrimp rearing ponds. Fish disease diagnostic Laboratory reports, 5. Fish disease diagnostic Laboratory - Texas Agricultural Extension Service. Department of Wildlife and fisheries sciences: Texas. 3 pp.
Part of: Fish disease diagnostic Laboratory reports. Fish disease diagnostic Laboratory - Texas Agricultural Extension Service. Department of Wildlife and fisheries sciences, more

Available in Authors 
    VLIZ: Non-open access 284585

Keywords
    Chemical compounds; Chemical control; Disease control; Lethal limits; Shellfish culture; Survival; Water quality; Fresh water

Authors  Top 
  • Johnson, S.K.
  • Holcomb, H.W.

Abstract
    The following chemicals were tested as management tools in penaeid shrimp ponds: formalin, potassium permanganate, copper sulfate, and malachite green. The work concentrated on demonstrating that these chemicals could be used at effective levels without causing mortality to a shrimp crop. A single pond was used for the testing of each chemical and a shrimp mortality observation period followed each application. The shrimp crop treated at a 20 ppm level with formalin survived. Formalin was effective in eliminating stalked ciliates on the gills. All shrimp survived application of the oxidizing agent, potassium permanganate, at a rate of 3 ppm with no noticeable precipitate on the shrimp gills. Malachite green applied at 0.1 ppm was tolerated by the shrimp but it was not effective against the protozoan fauna on the gills. Copper sulfate at 1 ppm was tolerated by the shrimp but not effective as a parasiticide nor molluscacide.

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