CATDOLL : CATDOLL: Why is there a large-scale death of crayfish in the pond even though the water quality is good?

1. Why is there a large-scale death of crayfish even though the water quality of the pond is very good?

How do you judge that the water quality is very good? What indicators have been tested? There are two reasons for large-scale deaths: water quality problems or serious infectious diseases.

2. Lobster mortality is serious. Is there any way to treat it?

Crayfish are sick and die for unknown reasons. This is a headache for many farmers. Some people use a lot of medicine and the more they use, the more they die, while some people just use a little medicine. In fact, there is a certain pattern in the disease of lobsters: large lobsters begin to die in early May, and then the crayfish begin to die after the water quality deteriorates. After picking up the lobsters, it was found that 70% of the dead lobsters had a layer of soft red shells formed in the cephalothorax, and there was black carapace ulceration on the body, mainly due to malnutrition and bacterial infection. Treatment method: First use terilis calcium + enzymatic polysaccharide (1+2 uses 4 acres) to supplement nutrition and promote shelling. After 2 days, use Biosafe + Nano Oxygen (2+1 uses 4 acres, and the situation is serious. Biosafe uses 1.5 acres). The situation is basically improved on the 3rd day. After that, you must pay attention to detoxification and bacterial and algae cultivation, and keep up with oral administration. Only in this way can the root be eradicated.

The new concept of "maintenance" is to focus on the healthy maintenance of the pond aquaculture environment and the microecological environment in the aquaculture objects based on the scientific concept of "prevention first, prevention is more important than treatment". Its main content is to cultivate and maintain good algae, good water quality, and good bottom quality with stable and healthy dissolved oxygen in water as the core; maintain the healthy liver, intestines, stomach, and gills of the aquaculture objects, and promote the healthy circulation of the microecology in the aquaculture objects, so as to achieve the sustainable development of ecology, healthy, and efficient aquaculture goals.

3. Why do adult crayfish die?

High temperature, low air pressure, and high-density breeding will cause lack of oxygen in the water. Lobsters breathe through gills, and the above factors will cause lobsters to die.

4. Why do lobsters die in large numbers after being placed in the pond for 3 to 5 days?

According to my many years of experience in seedling production, first, there is something wrong with the seedling (drug-treated, wild seedling, rice field, etc.) because its constitution or damage by drugs, second, transportation problem (also very important), third, your water quality is not good! You can chat privately...