CATDOLL : CATDOLL: How many kilograms of hairy crabs can be produced per acre?

If crabs are raised in rice fields, the amount is usually between 260 and 300 jin per mu; if shrimps and crabs are raised in rice fields, the amount is usually between 150 and 220 jin per mu; if loaches and crabs are raised in rice fields, the amount is usually between 200 and 260 jin per mu; if eels and crabs are raised in rice fields, the amount is usually between 180 and 250 jin per mu; if it is intensively raised in a single field, the amount is usually between 300 and 380 jin per mu; if it is rough raised in a single field, the amount is usually between 180 and 230 jin. Suitable crab breeding sites should have good water quality, sufficient water sources, and convenient drainage. To ensure good air permeability, sandy or sandy loam land should be used as the main land. The water depth in the pond should be controlled at about 1m, and the shallowest place should not be less than 10cm. In the built pond, leave a few mounds and plant aquatic plants such as reeds and wild rice stems; on the one hand, these aquatic plants are a good source of nutrients for crabs to eat. On the other hand, it is conducive to consolidating the river bank and avoiding water leakage caused by digging holes. Extended information: Management measures for crab farming: Feeding management of crabs: River crabs like to eat fresh ingredients. For this reason, daily feeding management prohibits those feeds that have been stored for a long time and deteriorated. At this stage, it is still necessary to mainly feed meat feed, and use some nutritious vegetarian food in moderation, especially more plant feed, so as to ensure good water quality in the pond. Disinfection management of crabs: Remove pathogens and bacteria in the pond to create a good breeding environment for healthy breeding of river crabs. Pond disinfection management should be done well before and after breeding. Before the young crabs enter the pond, disinfection should be done in advance, and the silt in the pond should be cleaned in time in winter. During the breeding management process, the disinfectant selected requires: low toxicity and fast volatility to avoid environmental damage caused by disinfection. Crab breeding management: Strengthen daily feeding management and implement daily inspections. Patrol at least 1 to 2 times a day, once in the morning and once in the evening, and pay attention to the foraging of river crabs. When abnormal situations occur, we should immediately check whether there is any disease, and actively use symptomatic medication to avoid the spread of infectious diseases and affect breeding benefits.

The yield per mu is generally about 150 to 300 kilograms, but because of different factors such as breeding technology, the specific yield per mu of crabs needs to be determined based on actual conditions. In order to increase the yield per mu of crabs, it is necessary to provide them with sufficient protein feed and do a good job of disease prevention, disinfect them regularly, and when the oxygen supply is insufficient, it is necessary to increase oxygen in time to ensure a suitable growth environment, so as to ensure the yield of crabs.

One acre of excellent crab field can produce about 300 jin of commercial crabs. About 1,200 crab seedlings are released (fewer crabs are released if you want big crabs, and more crabs are released if you want more crabs with smaller yields), and the survival rate is about 70%. The general yield per acre is about 200 jin. If it is not raised well, the yield may be only more than 100 jin. What are the technical points of raising crabs in rice fields? 1. Selection and transformation of fields The rice fields for raising crabs require the selection of medium-ripening late-maturing or mixed-maturing fields with sufficient water sources, good water quality, convenient drainage and irrigation, strong water retention, and fertile soil, or fermented fields that are not dehydrated all year round. Fence anti-escape facilities: Fence anti-escape facilities need to use materials with strong antioxidant capacity. The fence panels around the fields are buried 10-20 cm underground and about 50 cm above the ground. The anti-escape wall made of materials with strong antioxidant capacity has the characteristics of convenient transportation and installation, low cost, good effect, and long service life.

The yield per mu is generally about 150 to 300 kilograms, but because of different factors such as breeding technology, the specific yield per mu of crabs needs to be determined based on actual conditions. In order to increase the yield per mu of crabs, it is necessary to provide them with sufficient protein feed and do a good job of disease prevention, disinfect them regularly, and when the oxygen supply is insufficient, it is necessary to increase oxygen in time to ensure a suitable growth environment, so as to ensure the yield of crabs.