CATDOLL : CATDOLL: What can you eat when you eat crabs?

Crabs are an animal with many species. They like to live in the sea or in the water. At present, the distribution range of crabs in my country is very wide, and they can be seen in many places. There are also many people who raise crabs now, but many people do not know what to feed crabs during the breeding process. Let's take a look!

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What foods do crabs eat?

All kinds of organisms that crabs like to eat and grow naturally in water or on land are called natural bait. Natural bait mainly includes phytoplankton, aquatic plants, benthic animals and terrestrial animals and plants.

1. Phytoplankton: including diatoms, golden algae, dinoflagellates, naked algae, green algae, etc., which are feed for early juvenile crabs and zooplankton.

2. Zooplankton: Rotifers, cladocerans, copepods, etc. are good feed for it.

3. Aquatic plants: including Vallisneria, Hydrilla verticillata, Water Chestnut, Potamogeton, Duckweed, Lemna, Water Lettuce, Water Peanut, Golden Grass, etc., are its main natural bait.

4. Benthic animals: Snails, clams, river clams, earthworms, etc. in the water are its best feed.

5. Terrestrial plants and animals: including mealworms, earthworms, ryegrass, pennisetum, and comfrey.

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How to keep crabs alive

1. When raising crabs at home, you need to use a basin. You can put some fine sand in the basin to form a small platform. The water for raising crabs should not be too deep. The best water depth is that the water steel can immerse the crab shell. You can use tap water for raising crabs, but you have to dry it for a day before you can use it.

2. Crabs can be exposed to the sun appropriately, but not for too long.

3. Crabs are omnivorous animals. If conditions permit, you can feed them red nematodes and egg yolks. Of course, crabs can also eat chicken and duck viscera or small fish and shrimp. At the same time, you should feed them some grass food. Pay attention to the amount of food you eat. You should finish eating within half an hour, otherwise the remaining food will pollute the water for breeding.

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4. The feeding intensity of crabs increases or decreases with the change of seasons and water temperature. In summer and autumn, when the water temperature rises above 15℃, the feeding ability of crabs increases, and they should be fed once a day. When the water temperature drops below 15℃, the feeding ability of crabs decreases, and they can be fed every other day or every few days. The best time to feed is around dusk, because crabs are aquatic animals that hide during the day and come out at night.

5. Crabs are social animals. It is best to raise several crabs together, so that the survival rate is higher.

6. Clean the crabs. When cleaning the crabs, hold them with your hands, and then use a toothbrush with some shower gel or soap to clean them, especially in the corners, and hold their feet (don't use too much force) to brush. After the bath, rinse them with water, clean the fish tank, and occasionally sprinkle some salt, mainly to prevent infectious diseases.

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What are the common methods of breeding crabs?

1. Pond crab farming: Crabs are raised in ponds. The entire farming process can be controlled artificially, and the recapture rate is high, but the pond specifications and meat quality are inferior to those of crabs raised in large water bodies.

2. Raising crabs in grass marshes and reed beaches Grass marshes and reed beaches are suitable for the ecological requirements for the growth of river crabs, with low production costs, large market sizes and good quality, but their recapture rate is low.

3. Raising crabs in rice fields Raising adult crabs in rice fields is a new aquaculture industry that has developed in recent years. This method can reduce the amount of fertilizer used in rice fields, kill pests, remove weeds, and increase the thousand-grain weight of rice. The rice field environment can also be adapted to the growth of adult crabs with a slight modification.

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Do a good job in crab disease prevention and control

Crab disease prevention and control should adhere to prevention as the priority, achieve early detection and early treatment, prevent diseases first when they are disease-free, and treat diseases early when they are diseased. Different methods should be adopted for prevention at different growth stages. Select photosynthetic bacteria, EM bacteria and other microbial preparations to adjust water quality. Use quicklime, dibromohydantoin and other prevention methods regularly in high temperature seasons. Use carapace net or ciliate net to kill insects once every 15-20 days during the high incidence period of ciliates. To avoid drug resistance, drugs should be used alternately. Shaking disease is a microorganism between bacteria and viruses. Using diazinon to clean the pool is an effective method for preventing and controlling shaking disease.

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Crabs generally eat aquatic organisms or water plants. If you raise crabs at home, you need to let them bask in the sun from time to time, and the number of feedings also needs to be controlled. In addition to the first time, crabs can also be raised in ponds, rice fields and other places. During the breeding process, it is also necessary to prevent diseases in a timely manner.