CATDOLL : CATDOLL: What do rice field crabs eat and how to raise them

What do rice field crabs eat and how to raise them

Rice field crabs eat weeds in the fields and insects that harm rice. To breed rice field crabs, the crab seedlings must first be cultivated in a greenhouse and then placed in the rice fields after May to shorten the breeding cycle. They should be fed 1-2 times a day, usually in the morning and evening. In order to prevent the rice field crabs from escaping, a circle of polyethylene mesh should be placed around the rice fields, and filters should also be installed at the inlets and outlets.

What do rice field crabs eat? Rice field crabs eat weeds in the fields and insects that harm rice. Their excrement can also be used as fertilizer to provide certain nutrients for rice. However, when there are a large number of rice field crabs, they will eat rice if there is not enough food. At this time, they need to be fed in time to prevent the crabs from harming the crops.

Breeding method of rice field crab: Rice field crab seedlings need to undergo intensive cultivation in the greenhouse first, and then be placed in the rice field after May to shorten the breeding cycle. Feed them 1-2 times a day, usually in the morning and evening, and the water depth of the rice field should be maintained at 6-10 cm. In order to maintain water quality, water needs to be changed frequently, and quicklime should be applied every 10 days.

The benefits of raising crabs in rice fields Raising crabs in rice fields has changed the traditional farming methods, improved the productivity of rice fields, combined planting and breeding industries, and promoted the development of the agricultural ecosystem. Rice field crabs eat weeds and insects as feed, and their excrement can be used as fertilizer to improve nutrition. Rice can provide rice field crabs with a place to hide, shed their shells safely, and avoid natural enemies, thus achieving a virtuous ecological cycle.

Precautions for rice field crab farming: In order to prevent rice field crabs from escaping, a polyethylene mesh needs to be placed around the rice field, and filter nets need to be installed at the water inlet and outlet. Crabs have the habit of digging holes. When feeding crabs, pay attention to whether there are crab holes on the edge of the field. If they appear, they need to be blocked as soon as possible, and rotten and spoiled food residues should be removed in time.

How many crabs should be placed per acre in rice fields to cultivate river crabs?

About 600 crabs per mu are raised early and carefully. Conventional crab farming is to release the crabs after the rice seedlings are planted and before the seedlings are raised. The crabs are released one and a half months earlier on average. The growth cycle of crabs is about 6 months. In this way, the size of rice field crabs will increase by 20-30 grams, and their value and popularity will be significantly different. In addition to eating microorganisms in the rice fields, river crabs are fed with full-price bait containing a variety of trace elements and more than 30% protein.