Will the crayfish die in the sun pond?
Crayfish don't die in the pond. Moreover, the process of sunbathing can increase the oxidation capacity of the sludge at the bottom of the pond, reduce the content of organic matter so as to reduce the oxygen consumption in the future culture process, and at the same time kill a large number of bacteria and bacteria in the sludge.
How to bask in the pond for crayfish farming?
1. Lower the water in the pond, or if the lobster has been caught out, you can drain the pond directly. Bask in the pond for at least 10-15 days. The standard is that the pond mud is dried and cracked by 2-3 cm, with a depth of at least 10 cm, and people stand on it without sinking.
two。 Sunbathing time should be carried out as soon as possible. Because the water level is low when draining the pond, the lower water level will force the crayfish to make holes at the low water level, and the female after mating will enter the cave to lay eggs, so the crayfish can be forced to make holes to mate by lowering the water level.
3. Generally, the pond drying time is scheduled to be completed before the middle of 8-9, which is also the peak time for crayfish to mate and lay eggs. Lowering the water level allows crayfish to dig holes and lay eggs at low water levels, and after they lay eggs and hatch shrimp, they can be forced to come out of the hole by raising the water level after overwintering or after the beginning of spring, so that the young shrimp can grow and develop earlier.
- Prev
The difference between mixed turtles and grass turtles
Flower and grass turtle is a hybrid between Chinese flower turtle and Chinese grass turtle, which is the most common and a few hybrid turtles raised on a small scale, while grass turtle is a native turtle species native to China, which has a good meaning and blessing. Both of them have great differences in appearance and habits.
- Next
Introduction to the difference between temple turtles and grass turtles!
The temple tortoise generally refers to the yellow-headed temple tortoise, which is an endangered species in the world and a second-class protected animal in China. Its head is black and there are irregular yellow transverse stripes on the side and orbit. The toenail is black and the tortoise is oval as a whole. On the other hand, the back armour of the grass tortoise is relatively flat, with three lengths.
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.