How to preserve flying crabs
If it is fresh flying crabs, you can tie up your feet and large pliers, then put them in the freezer and cover them with wet towels, or in a bucket filled with water, but be careful not to stack them, and the water can not pass through them. If you have cooked flying crabs, it is recommended that you finish eating on the same day and do not spend the night.
Daily management of flying crab culture:
1. Water quality management
In July, the water should be changed once every 2 murals every 3 days; from August to September, the water should be changed every 2 days, and in October, the water should be changed every 5 days. The specific amount of water and the interval between water changes should be changed according to the weather, water temperature and other environmental factors.
two。 Throw and feed
Portunus trituberculatus is an omnivorous shellfish, which takes fresh low-value fish, shrimp, shellfish and crabs as the main food. The daily feeding amount varies according to the size of the crab. It is generally fed at about 8% of the total body weight of the crab in the early stage, 12% in the middle stage and 5% in the later stage. When the water temperature drops to 10: 15 ℃ in autumn, the daily feeding amount should be 3% of the total body weight. It should be fed according to the principle of feeding once in the morning and evening, less in the morning and more in the evening. When the average water temperature is below 10 ℃, there is no need to feed.
3. Pool patrol management
The pond should be inspected once in the morning and evening. During the inspection, the feeding and activity of swimming crab should be carefully observed, the change of pond water should be paid attention to, the residual bait in the pond should be checked, and the amount of feeding and water exchange should be adjusted in time. Pay attention to weather changes at any time and make preparations for flood control and typhoon prevention. Always check the barrier and dam of the gate to see if there are any breakages and loopholes, and repair them as soon as possible if problems are found.
Flying crab meat is delicate, rich in protein, rich and a variety of minerals, whether fried or pickled, is a rare delicacy on the table.
- Prev
What does Xanthium sibirica rely on to spread seeds?
Xanthium sibiricum mainly depends on the thorns of the body to spread seeds. Because there are many thorns on the surface of Xanthium sibiricum, there are a large number of seeds in the thorns. Seeds are highly adsorptive and stick to animals or humans in this way. What are the functions of Xanthium sibiricum 1. Treatment of rhinitis Xanthium sibiricum
- Next
Is crocodile viviparous or oviparous?
Crocodiles are egg-laying animals. And its eggs hatch using the heat of the sun and the heat of wet fermentation of weeds. Some crocodile species: 1. Nile crocodile: different populations of Nile crocodile are listed as endangered and vulnerable. two。 African alligator: African long kiss
Related
- A course of planting techniques and methods on how to grow carrots
- How to plant the latest tulips?
- Is it better to pick tea in the morning or in the afternoon? When is the best time for tea to be picked? what is the third or fifth tea?
- Launch Yuanxiao Happy combination Haocha + Tea Yuan healthy Taste
- Penghu Tourism "Fireworks 20 Parade with You"
- 2022 West Lake Happiness holds "Digital Revitalization Voucher" and draws iphone13 and laptop.
- Banqiao Fuzhou social houses are designed to change start-up combined with police elimination to create a safe and livable environment
- The convenient measure of "mechanical weeding" in Xinbei has been abused and the Agriculture Bureau has imposed heavy penalties on the illegal land consolidation.
- Changgeng University Joins Hands with Four Memory Factories to Rescue Memory Talent Shortage
- The list of Taiwan's top 100 MVP managers is listed by the Director-General of the Farmers' Association of Sanxia District.