Problems in Ecological Crab Breeding
2024-10-24 02:01:00
First, the water quality management Crab field water depth is best to maintain more than 15 cm, the minimum must not be less than 10 cm. Change the water as much as possible, it is best to change the water once a week. Due to the current widespread pollution of the water line, it is recommended to use well water, but the well water must be exposed after 2-3 days of exposure. In addition, due to the high ammonium nitrogen, it is best not to disinfect the lime and bleach, and it can be used properly. Some water purifiers or water line drugs. Second, the bait feed the current juvenile crab bait should be based on plant-based bait shake, with pellet feed, appropriate to add a small amount of animal bait. Daily feeding 1-2 times, the amount of daily feeding control in the estimated crab body weight of 5% -10%. Water plants can be fed 3 to 4 times a week. III. Transplanting aquatic weeds is very important. Keeping a certain amount of water grass coverage (about 60%) in the crab field is very beneficial to the growth of juvenile crabs. This is one of the important factors related to the ability to produce high yields. IV. Disease prevention and control At present, according to our survey, some farmers have found out that they are sick. The methods of preventing and treating this disease can be increased by changing the amount of water and adding dehulling substances to the dipping material to promote shelling and drug control of juvenile crabs. law. Drugs have a good net effect of 100 poisons.
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