Water fish is also called soft-shelled turtle, in the process of water fish farming, farmers need to pay attention to many aspects, including breeding environment, breeding technology, feed selection, etc. The following will introduce some methods and techniques of aquatic fish farming to help farmers increase their production and profitability.
First, the breeding environment.
Fish farming requires a good environment, which includes the selection of soft-shelled turtle ponds and water sources. The soft-shelled turtle pond should be built in a place with ventilation and sunshine, sufficient water sources, good water quality and no pollution. The shape of the soft-shelled turtle pond should be rectangular, with a length-to-width ratio of about 2:1 and a depth of about 1 meter. In the construction of soft-shelled turtle ponds, measures should be taken to prevent escape, heatstroke, cold and wind.
Second, breeding technology.
1.Seedling selection.
The selection of high-quality seed is the key to the success of soft-shelled turtle farming. High-quality seedlings should have bright body color, strong physique, no disease and no injury, and strong resistance to stress. When selecting seedlings, the selection should be made according to the local breeding environment and market demand.
2.Breeding density.
The culture density of soft-shelled turtles has a great impact on both yield and quality. In general, the stocking density of soft-shelled turtles should be adjusted according to the size of the individual and the water quality. In the early stage of aquaculture, the soft-shelled turtle is smaller and the water quality is better, so the breeding density can be increased appropriately. As the individual soft-shelled turtle increases, the water quality will gradually deteriorate, and the breeding density should be reduced in time.
3.Feed selection.
The main feed of soft-shelled turtle includes fresh bait and compound feed. Fresh bait can choose small trash fish, earthworms, snails, etc., and compound feed can choose special feed for soft-shelled turtle with protein content of 40%-65%. When choosing a feed, it should be selected according to the growth stage of the soft-shelled turtle and the market demand.
4.Water quality management.
Water quality management is an important part of soft-shelled turtle farming. During the breeding process, the water quality should be regularly tested, including pH value, ammonia nitrogen, nitrite and other indicators. If there is a problem with the water quality, measures should be taken to deal with it in time. In addition, the water should be changed regularly to keep the water clean and stable.
3. Feed selection.
1.Live bait.
Fresh bait is one of the main foods of aquatic fish, and you can choose small trash fish, earthworms, snails, etc. These fresh baits are rich in protein and fat, which can meet the growth needs of soft-shelled turtles. However, there are a few things to keep in mind when choosing a live bait:
1) Freshness: Fresh bait should be fresh and odorless, and avoid using dead or spoiled bait.
2) Species: Different types of fresh bait have different nutrients, and should be selected according to the growth stage of soft-shelled turtle and market demand.
3) Treatment method: When using fresh bait, appropriate treatment should be carried out, such as cleaning, disinfection, etc., to avoid the infection of germs and parasites.
2.Compound feed.
Compound feed is an important nutrient in water fish farming**, you can choose a protein content of 40%-65% of the soft-shelled turtle special feed. The advantages of compound feed are comprehensive nutrition, easy to use, easy to store, etc. When choosing compound feed, you need to pay attention to the following:
1) Reputation: Choose a reputable feed manufacturer to ensure the quality and safety of feed.
2) Nutrient composition: pay attention to the nutrient content list of the feed and choose the feed suitable for the growth of soft-shelled turtles.
3) How to use: Feed according to the recommended use method and dosage of feed manufacturers to ensure the healthy growth of soft-shelled turtles.
Fourth, daily management.
1.Patrol the pool for inspection.
At least twice a day, the soft-shelled turtle pond is inspected to observe the growth of soft-shelled turtles and changes in water quality. If the problem is found, deal with it in time, such as finding a dead soft-shelled turtle to fish out and check it in time**.
2.Timely pooling.
With the increase of fish individuals, it is necessary to divide the pond in time to avoid problems such as growth retardation and cannibalism caused by excessive density. When dividing the pool, it should be reasonably distributed according to the individual size and health status of the soft-shelled turtles.