The cost of raising an acre of crabs is about 481 yuan for crab seedlings, about 1,211 yuan for renting land, about 1,211 yuan for concentrated feed, and about 3,781 yuan for aquatic plants, river snails, crab medicine and utilities. The market price of 611 crabs is about 11,811 yuan, and the profit rate is about 7,121 yuan per mu. But there will be some differences in prices across the country, and everyone takes the local as the standard.

1. Cost and profit

1. Cost of input

If an acre of crabs is cultivated, the total number of crab seedlings to be invested is similar to 611, and the price of a crab seedling is similar to that in 1.8 yuan, so the cost of crab seedlings to be invested is similar to that in 481 yuan. The rental price of an acre of land is similar to around 1,211 yuan. In the whole process of breeding, the cost of intensive feed for one acre of crabs is similar to 1,211 yuan, and some aquatic plants and snails need to be promoted in it, and the price of this part is similar to that in 711 yuan. In the whole process of breeding, crab medicine and water and electricity charges are also needed, and the cost of this part is similar to that in 211 yuan. The accumulated cost of project investment is 3,781 yuan.

2. Profit

When an acre of crabs is profitable, the price of a crab leaving the pond is likely to be around 18 yuan, so the market price of 611 crabs is similar to 11811 yuan, and its profit is similar to 7121 yuan except the cost. In the case of feeding, it is also very likely that some small crabs will be bred, and this part of the profit will be ignored.

However, there are likely to be some differences in the price quotations in each region. Therefore, in the case of forecast, we should either take the local price as the standard and go to the local sales market for more information.

2. Techniques of crab breeding

1. Pond capital construction

In the capital construction of ponds, it is necessary to select clean areas for breeding. In the case of aquaculture, it is best to transplant some aquatic plants in it, which will be more conducive to its growth and development and ensure the water body. Before seeding, sprinkle appropriate lime powder into it and carry out disinfection and sterilization. It is best to carry out this work about 21 days in advance. Until its toxic side effects disappear, put the crab seedlings again.

2. Feeding crabs

In the case of breeding, it is necessary to do a good job of feeding crabs. It is a better way to feed crabs three times a day. In the case of feeding, some fresh ingredients such as fish and shrimp can be selected for feeding.

3. Management methods

Usually, we should do a good job in its management and increase the inspection range. If we find something wrong with it, we should carry out prevention in time. Crabs are also likely to escape, so the countermeasures for ordinary people to escape need to be done well to prevent themselves from suffering losses.