Why do fish have red bellies when they die It s the fish in their own pond that have been dying late

There are several reasons why a fish's belly turns red after death:

1.After the fish dies, bacteria multiply on the surface of the fish, causing the surface of the fish to turn red, which is often referred to as "erythema".

2.Insufficient oxygen levels in the water can cause fish to die and turn their bodies red.

3.If the water quality of the fish pond is poor, the fish will face many health problems that may lead to death and red bodies.

4.Hot weather may cause the water temperature in the fish pond to increase and the oxygen content in the water to decrease, which can cause the fish to breathe hard, which eventually leads to death and a red body.

5.Poor feeding conditions, such as inadequate feed, malnutrition, overfishing, etc., can also lead to the death of fish and the reddening of the body.

To prevent the belly of the fish in the pond from turning red after death, the following measures are recommended:

1.Infuse with fresh water.

2.Improve water quality.

3.The whole pond is sprinkled with bromochlorohydantoin for aquatic products according to the instructions for use.

4.Feed with traditional Chinese medicine three yellow and white loose powder without mixing.

Redness is congestion!

The presence of harmful microorganisms in the water in which fish are raised can cause the fish to develop an inflammatory response, including blood cells.

Efflux from the blood vessels, resulting in **congestion, so the white belly will be "red".

For water quality problems, it is recommended to change the water or disinfect and purify the water in the pond.

What is the reason for the redness of the dead fish caught in the fish pond, Hello, According to what you said about the redness of the fish after the death of the fish, we cannot tell what the cause is, because there are many diseases that cause the redness of the fish after the death of the fish balls. Here are two types for you: 1. Red skin disease:

Symptoms: redness or even bleeding on the surface of the body, congestion and terminal erosion at the base of the fins, and destruction of inter-fin tissues. ②**：

The fish body is injured and infected, and the water quality and bottom quality are poor. Prevention: During the harvesting and transportation, handle with care to avoid mechanical damage.

Tangerine**: Soak in 1ppm bleach solution for 5-10 minutes, and then inject 2-50,000 units of penicillin per fish for several days in a row. 2. **Ulcer disease:

Symptoms: In the early stage of infection, the body color is patchy and faded, the appetite is lost, and it slowly floats to the surface; In the middle stage of infection, the base of the fins, trunk, etc., are red or speckled hemorrhage; In the later stages of infection, the snout or fin membrane erodes, and the affected tissues infiltrate and appear hemorrhagic ulcers. ②**：

The bait deteriorates and the water deteriorates. Prevention: Do not feed spoiled bait, feed antimicrobial bait regularly, change water frequently, and use disinfectant regularly.

**: Bleaching powder 1ppm or strong chlorine, sprinkled on the whole pool, once a day, for several days, can control the progression of the disease. In the process of fish disease prevention and control, we should pay attention to the policy of "prevention first, prevention and control combined, prevention and treatment more important than cure".

Prevention methods: mainly maintain a good water quality environment, feed an appropriate amount of fresh bait, regularly clean and disinfect, and regularly disinfect water with quicklime, bleaching powder, and strong chlorine. Attention should also be paid to the following:

1. The feeding bait should be gradually transitioned to artificial compound feed. In this way, it is easy to transport, nutritious and cheap, and reduces the pollution of water quality by residual bait. 2. Symptomatic medication, and can not use the same drug for a long time, to alternate use, the larger drug should be used as little as possible, the toxic should be used with caution, there is no understanding of more than two drugs can not be mixed, I hope my answer will help you, Finally, I wish you good health and a happy mood!

A red dot on a fish indicates a hemorrhagic disease. This disease is caused by the herpes virus, and the body of the affected fish will be black, and at the same time, the luster, muscles and fins will be congested, and the gill cover and head will also be congested, and the gill filaments will have bright red spots. The disease is more common in June-September and has a higher mortality rate.

Summary. Hello dear, I'm glad to answer for you, what's going on with the redness of the dead fish caught in the fish pond? We can't tell what caused the redness of the fish after the death of the fish, because there are many diseases that cause the redness of the fish after the death of the fish.

Here are two kinds for you: 1. Red skin disease: Symptoms:

The body surface is red and even bleeding, the base of the fin bars is congested and the end is eroded, and the inter-fin tissue is destroyed. The fish body is injured and infected, and the water quality and bottom quality are poor.

Prevention: During the harvesting and transportation, handle with care to avoid mechanical damage. ④**：

Soak in 1ppm bleach solution for 5-10 minutes, and then inject 2-50,000 units of penicillin per fish for several days. 2. **Ulcer disease: Symptoms:

In the early stage of infection, the body color is patchy and faded, the appetite is lost, and it slowly floats to the surface; In the middle stage of infection, the base of the fins, trunk, etc., are red or speckled hemorrhage; In the later stages of infection, the snout or fin membrane erodes, and the affected tissues infiltrate and appear hemorrhagic ulcers. The bait deteriorates and the water deteriorates.

Hello dear, I'm glad to answer for you, what's going on with the redness of the dead fish caught in the fish pond? According to what you said, we can't tell what the cause is because there are many diseases that cause redness after the death of the fish. Here are the two types next to the paragraph:

1. Erythroderma: Symptoms: redness or even bleeding on the surface of the body, congestion at the base of the fin bars, erosion at the end, and destruction of the inter-fin tissues.

The fish body is injured and infected, and the water quality and bottom quality are poor. Prevention:

During the harvesting and transportation, care should be taken to avoid mechanical damage. Soak in 1ppm bleach solution for 5-10 minutes, and then inject 2-50,000 units of penicillin per fish for several days.

2. **Ulcer disease: Symptoms: In the early stage of infection, the body color is patchy and faded, the appetite is lost, and it slowly floats on the surface of the water; In the middle stage of infection, the base of the fins, trunk, etc., are red or speckled hemorrhage; In the later stage of infection, the snout burns the bright end or the fin membrane erodes, and the affected tissues infiltrate and appear hemorrhagic ulcers.

The bait deteriorates and the water deteriorates. Prevention:

In this case, it may be fish erythroderma. It is suggested that new water should be injected to improve the water quality, and the whole pond should be sprinkled with bromochlorohydantoin for aquatic products according to the instructions for use, and fed with the unmixed mixture of three yellow and white loose powder of the Chinese medicine of guessing the void. Spike mill.

Dear you, the redness of the dead fish caught in the fish pond may be caused by a bacterial infection inside the fish. When the fish dies, the bacteria will multiply in the fish's body, causing the fish to rot and produce red pigment, causing red spots or red coatings to appear on the fish. In addition, water quality problems can also be one of the causes of fish death and redness.

If the water quality of the fish pond is not good and the oxygen content in the water is low, the fish will die due to lack of oxygen, and it is also easy to breed bacteria. Therefore, keeping the water quality of the fish pond clean and sufficient oxygen** is an important measure to prevent fish death and redness. If fish death and redness are found, the fish pond should be cleaned and the water source should be replaced in time to avoid the spread of bacterial infection.

Categories: Education, Science, >> Science & Technology.

Analysis: When the fish dies, the body loses control and cannot maintain a state of balance.

The swim bladder is on the abdomen and naturally rolls up.

There is an organ in the body of the fish that regulates the specific gravity of the body called the swim bladder. It can deflate or inhale at different depths to adjust the specific gravity of the body, so that the specific gravity of the surrounding water is the same, so that the fish can stay in the water effortlessly, after the fish dies, it loses its ability to adjust, and the swim bladder is full of gas, and the specific gravity of the body is reduced. The back of the fish is mostly a place with more vertebrae and muscles, and the specific gravity is larger, while the abdomen is mostly internal organs, with a large cavity and a small specific gravity, so after the fish dies, the abdomen with a small specific gravity will face upward.