In the pond culture process, pond fish poisoning or flooding accidents often occur due to management negligence. In severe cases, a large number of fish will die. Therefore, accurately discriminating pond fish poisoning and flooding ponds and taking corresponding rescue measures in time can reduce economic losses.
I. From the time of occurrence, pond fish poisoning is generally distinguished from seasonality and weather. It has little to do with pond water quality, thin ponds, pond ponds and ponds. It mostly cleans medicine equipment in ponds when toxic sewage enters ponds and farm fields. The prevention of fish diseases is caused by overdosing or inappropriate methods of application and individual illegal fish poisoning. Dead fish can occur during the day and at night. Pantang occurs mostly in the summer and hot seasons, especially in the continuous low-pressure hot weather, continuous rainy weather is most likely to cause flooding pond accidents, and most of the time during the midnight to midnight, pond water quality more fertilizer, pond fish The greater the density of the pond, the greater the likelihood of sudden flooding.
Second, from the pond fish performance to distinguish the occurrence of pond fish poisoning, the phenomenon of fish floating head is generally not obvious, and its symptoms are also different due to different poisons: some manifestations of migration, trembling, jumping and struggling, until coma and death; Some manifested themselves as sluggish, paralyzed, darkened in color, and eventually lost their ability to move. Pan Pond is characterized by a serious lack of oxygen floating fish ponds, scattered throughout the pond, mouth one by one, calmly and directly from the air to draw oxygen, when serious floating head in the shallow water, the belly slowly upturned, and struggled to maintain balance, So repeated several times will belly up and die.
Third, from the type of dead fish pond poisoning accidents are generally divided regardless of the type and size, even the bottom of the carp, carp, loach and other fish will die, in serious cases when the whole pond fish can die. Pan-throat dead fish are commonly found in silver carp, carp, carp, carp, carp, etc. Other fish are less likely to die.
4. The first-aid measures to distinguish pantans from rescue measures are timely flooding of new water and aeration of aerators. For ponds with inconvenient water sources and irrigation and no aeration facilities, aerobic oxygen can be used for oxygenation, or yellow mud, alum, and other coagulants. The first-aid measure for pond fish poisoning is that any pond with good water conditions should immediately flush with fresh water, release the old water in the pool, and drain it side by side until the fish return to calm. Wherever conditions permit, net fishing can be carried out immediately, poisoned fish can be quickly transferred to non-toxic water bodies and then returned to the original pond after being properly handled. For poisoning caused by methamidophos, phoxim, and pyrethroid pesticides, generally, the amount of lime of 15 to 20 kilograms of lime slurry per acre is used to reduce the toxicity of the whole pool. For poisoning caused by drugs such as toxaphene and sodium pentachlorophenol, 200 to 300 kg of urine is sprayed on the surface of the whole pond to reduce the toxicity.
I. From the time of occurrence, pond fish poisoning is generally distinguished from seasonality and weather. It has little to do with pond water quality, thin ponds, pond ponds and ponds. It mostly cleans medicine equipment in ponds when toxic sewage enters ponds and farm fields. The prevention of fish diseases is caused by overdosing or inappropriate methods of application and individual illegal fish poisoning. Dead fish can occur during the day and at night. Pantang occurs mostly in the summer and hot seasons, especially in the continuous low-pressure hot weather, continuous rainy weather is most likely to cause flooding pond accidents, and most of the time during the midnight to midnight, pond water quality more fertilizer, pond fish The greater the density of the pond, the greater the likelihood of sudden flooding.
Second, from the pond fish performance to distinguish the occurrence of pond fish poisoning, the phenomenon of fish floating head is generally not obvious, and its symptoms are also different due to different poisons: some manifestations of migration, trembling, jumping and struggling, until coma and death; Some manifested themselves as sluggish, paralyzed, darkened in color, and eventually lost their ability to move. Pan Pond is characterized by a serious lack of oxygen floating fish ponds, scattered throughout the pond, mouth one by one, calmly and directly from the air to draw oxygen, when serious floating head in the shallow water, the belly slowly upturned, and struggled to maintain balance, So repeated several times will belly up and die.
Third, from the type of dead fish pond poisoning accidents are generally divided regardless of the type and size, even the bottom of the carp, carp, loach and other fish will die, in serious cases when the whole pond fish can die. Pan-throat dead fish are commonly found in silver carp, carp, carp, carp, carp, etc. Other fish are less likely to die.
4. The first-aid measures to distinguish pantans from rescue measures are timely flooding of new water and aeration of aerators. For ponds with inconvenient water sources and irrigation and no aeration facilities, aerobic oxygen can be used for oxygenation, or yellow mud, alum, and other coagulants. The first-aid measure for pond fish poisoning is that any pond with good water conditions should immediately flush with fresh water, release the old water in the pool, and drain it side by side until the fish return to calm. Wherever conditions permit, net fishing can be carried out immediately, poisoned fish can be quickly transferred to non-toxic water bodies and then returned to the original pond after being properly handled. For poisoning caused by methamidophos, phoxim, and pyrethroid pesticides, generally, the amount of lime of 15 to 20 kilograms of lime slurry per acre is used to reduce the toxicity of the whole pool. For poisoning caused by drugs such as toxaphene and sodium pentachlorophenol, 200 to 300 kg of urine is sprayed on the surface of the whole pond to reduce the toxicity.
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