[First-line Case] Elimination of Heavy Metal Toxicity in Aquaculture Water
2021-08-06
Qingdao Zhongren Animal Medicine Co., Ltd
Chinese aquatic products
[First-line Case] Elimination of Heavy Metal Toxicity in Aquaculture Water
1. Case Details
Time: July 14, 2021
Location: Caofeidian District, Tangshan City
Breeding species: Penaeus vannamei
Cultivation area: 100 mu of land
Water quality index: pH:8.3 ammonia nitrogen: 0 nitrite: 0
Description of the situation: The farmers' response has been turning around one after another for more than a month. It has not improved. Vibrio detection is normal and other indicators are normal. Only the copper content of the three ponds detected by heavy metals exceeds the standard (copper ion content is 152 micrograms/liter, 264 micrograms/liter and 285 micrograms/liter respectively), and the farmers said that the fourth pond "turned around" is the earliest and the most serious (285 micrograms/liter).
3. effect feedback
The next day, there was an obvious effect. The heavy metal copper obviously dropped to the safe range. The farmers used it again. After two days of water testing, the "U-turn" was indeed less, and the food was getting faster. (The content of copper ions were 41 micrograms/liter, 98 micrograms/liter, 89 micrograms/liter), and the most serious pond dropped from 285 to 89 micrograms/liter.
4. case analysis
According to China's fishery water quality standards, excessive heavy metals can cause chronic poisoning and acute poisoning. Copper ion concentration should be less than or equal to 0.01mg/L, exceeding this standard will have a great impact on the hepatopancreas, gill filaments and blood of Penaeus vannamei.
Quick solution: compound organic acid salt, detoxification active substances, etc., this product can quickly chelate heavy metals, reduce the concentration of copper, zinc and cadmium in heavy metals and degrade the toxicity of heavy metals to Penaeus vannamei.
This article contribution: Liu Changming Liu Xianjun
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