How are crayfish farmed, and are they really easy to raise?
When it comes to crayfish, the word that probably comes to most people's minds is “delicious.” Indeed, spicy crayfish really do taste very good. So the demand for crayfish in the market keeps rising, and more and more people are starting to farm crayfish. So what feeding methods and precautions are there when we farm crayfish? Next, the editor will explain some little common knowledge about raising crayfish for everyone.
How are crayfish farmed
1. This is the most scientific type of farming, with specially built ponds, and a complete system for breeding, propagation and sales alike. It mainly centers on refined management of self-built ponds to raise yields from a scientific angle. It is the most common method for large-scale farming in our country at present, with high economic returns, stable yields and extremely stable sales channels; however, daily management is time-consuming, it places certain demands on crayfish farming technique, and the investment cost is high.
2. This is a mixed farming model, more suitable for areas with abundant paddy fields. Its advantage lies in double returns, and the two can also complement each other, each supplying nutrients to the other. Generally, large-scale paddy fields connected together give better yields; after planting crops such as rice, crayfish are then stocked, relying on the natural environment combined with artificial feeding to achieve a fattening effect, so the crayfish are healthy and lively with delicious meat.
Are crayfish really easy to raise
Crayfish are relatively easy to raise. Crayfish live in wetlands, lakes and ditches with shallow water and abundant aquatic plants. Because they are omnivorous, grow fast and adapt strongly, they form an absolute competitive advantage in the local ecological environment. Their feeding range includes aquatic plants, algae, aquatic insects, animal carcasses and so on, and when food is scarce they even cannibalize each other. In commercial farming, escape must be strictly prevented, especially escape into pristine waters rarely visited by people, otherwise they will outcompete local species ecologically and cause destructive harm.
Precautions for crayfish farming
1. The water for crayfish farming must be neither too deep nor too shallow. If the water is too deep it affects their breathing, and they occasionally need to surface for air, so it should not be too deep. Second, it should not be too shallow because the weather temperature affects the water temperature, especially in summer, which causes great harm to crayfish. So when farming, if there can be a slope, this better guarantees the crayfish's requirements for water. Next is water quality: change the water frequently, and at the same time plant an appropriate amount of aquatic plants in the pond. Aquatic plants can both purify the pond water and ensure water quality, and also provide them with a place to rest and play.
2. Crayfish especially love to burrow holes, so during farming you must pay special attention to protective measures, otherwise the crayfish you raise will be very few by harvest time. The usual protective measure is to set up anti-escape nets around the pond and on the bottom of the pond before stocking.
How much does a jin of crayfish fry cost
The market price of crayfish fry is about 15 to 30 yuan per jin. It is worth noting that the crayfish referred to at present are all one species, and there is no “hybrid variety”, because the cost is too high and natural fry are currently abundant and cheap while artificial fry are still at the laboratory stage. Also, do not be misled into buying crayfish breeding stock from other places at high prices because you believe it is a new variety that has been domesticated and shows less cannibalism. At the same time, many people think that after investing in breeding crayfish the first year, they can keep breeding on their own and reap good returns year after year. In fact, crayfish farming has its highest yield in the first year of stocking, then declines year by year, because the crayfish life cycle is 16 to 18 months, and combined with inbreeding, functional degeneration and reduced disease resistance, after 3 years the yield will drop sharply or even fail completely.
In the article above, the editor also explained some crayfish raising methods for everyone. In fact, summer is also the peak breeding season for crayfish. Moreover, crayfish are relatively easy to raise, and the cost of raising them is relatively low, which is also the reason many people like to raise crayfish.