World Aquaculture Society Meetings

facebook

Your browser does not support the most current secure communications protocol. The World Aquaculture Society is committed to the security of your private information. In order to accept credit card data on this site we are recquired to be in compliance with Payment Card Industry (PCI) standards. Current PCI standards will not allow us to accept traffic from browsers that do not support TLS 1.2 after June 30, 2018. We are alerting you to the important need to update your browser. Changes to our web server made on or before June 30, 2018 will make was.org unavailable with the browser you are currently using. [More..]

Add To Calendar 28/04/2016 11:40:0028/04/2016 12:00:00Africa/JohannesburgAsian-Pacific Aquaculture 2016TREATMEN OF SHRIMP FARM SOURCE  WATER TO ELIMINATE CRUSTACEAN VECTOR OF VIRAL  DISEASES WITH DICHLORVOS Diamond 5The World Aquaculture Societyjohnc@was.orgfalseanrl65yqlzh3g1q0dme13067DD/MM/YYYY

TREATMEN OF SHRIMP FARM SOURCE  WATER TO ELIMINATE CRUSTACEAN VECTOR OF VIRAL  DISEASES WITH DICHLORVOS

Bambang Widigdo,
Department of Aquatic Resources Management,
Faculty of Fisheries and Marine Science,
Bogor Agricultural University,
Bogor, Jawa Barat, Indonesia;
Email: bbg_widigdo@yahoo.co.id

 

Of the several methods for eliminating crustacean vectors of shrimp disease from shrimp ponds, treatment with Dichlorvos appears to be the most effective and economical. This compound degrades quickly, and there is no detectable residue in water 5 to 7 days after application at 3 mg/L. Shrimp from ponds subjected to the standard Dichlorvos treatment used at shrimp farmers (in Lampung, Indonesia), did not contain Dichlorvos residue after 90-106 days of culture, 10-14 days days before the normal time of harvest. No residue also found in ponds water and the mud (bottom substrate). The production rate is also considered to be normal, with the SR varies from 64.3% - 79.7%. Having   ADG of about 0.16 - 0.22g/day the shrimp  could reach the MBW of 15.53 - 24.92 g/indv, and the production reach 3,779 kg - 8,247 kg/5000 m2 (depend on its stoking density). There does not appear to be any reason for food safety concerns related to Dichlorvos use at the farms, for a residue of this compound does not occur in shrimp. Dichlorvos degrades completely after 7 days at treatment rates used at farms. Thus, there is no opportunity for discharge of Dichlorvos via pond effluent into natural waters. The compound is toxic to hum ans, for that workers should follow instruct tions as provi ded, such as protective clot hing, and proper equipment to allow safe us.




Copyright © 2001-2018 World Aquaculture Society All Rights Reserved.