Artificial propagation technique of bamboo shoot shell fish

Bamboo shoot shell fish is a kind of carnivorous fish, which is rich in nutrients, and its nutritional value is relatively high. It has a wide range of culture areas in China, Guangzhou and other areas. In recent years, it often appears on people's dinner table and is welcomed by many people. When raising bamboo shoot shell fish, the most important thing is to do a good job in breeding. So the editor today brings you the artificial breeding technology of bamboo shoot shell fish, let's take a look at it!

1. Parent fish selection

The selection of parent fish is very important for the reproduction of bamboo shoot shell fish, parent fish should be mature enough, the age is about two years old. Then the proportion is controlled at about 1:1. We can feel whether it is mature by touching it. Mature females are lighter in color, have a certain amount of mucus, and are not very smooth, and their ovaries can be felt in the abdomen. Males, on the other hand, are darker and have obvious markings, have more mucus than females, and feel smoother. So we can use these aspects to determine the mature state of parent fish and make choices.

2. Induce oviposition

After the selection of parent fish, it is necessary to do a good job in inducing labor, mainly chorionic gonadotropin and other agents to control the dose. Control the proportion after injection, put it in the spawning and burrow dwelling, and build the nest. The width of the nest should be kept at about 30cm and the height should be kept at about 20cm. Then the water level in the spawning pond is controlled around 40cm. To ensure that the water quality is clean enough, it is best to do a good job of disinfection. Parent fish injected with oxytocin will carry out self-breeding in the spawning pond and lay eggs in about 1-2 days.

3. Incubation management

After spawning, the fish eggs are placed in a clear pool for hatching, and the density is controlled according to the conditions, breeding methods and other actual conditions. When the water temperature is about 30 degrees, the hatching time is about 100 hours, and the hatching rate can reach 80%. The length of the newly hatched young fish is about 2.5mm, and the length of the next day is about 1mm. At this time, the digestive tract of juvenile fish began to develop, and various organs such as intestine and anus appeared. It takes about 28 days to grow fish fry to 1cm, but the survival rate during this period is relatively low. When it grows to about two centimeters, put it into a cement pool for cultivation and do a good job of shading.

4. Seedling cultivation

The survival rate of fish fry has a lot to do with feed. After about three days of hatching, fish fry will begin to eat. Because the opening of the young fish is very small at this time, the bait is mainly raw eggs, first stir raw eggs, then rinse well with hot water, filter and feed. The first feeding should be about four times, and then from the next day, the eggs and plankton should be fed alternately, and the feeding times should be reduced once. It lasted for half a month. When raising seedlings, we also need to do a good job in the regulation and control of water quality, do a good job in sewage discharge and water exchange, and improve the survival rate of seedlings.

The above is a brief introduction to the artificial propagation technology of bamboo shoot shell fish. The artificial reproduction of bamboo shoot shell fish is more troublesome and needs some technical support, so we must pay more attention to it. That's all for today's introduction. This article is for reference only. Thank you for your reading and support.