CATDOLL : CATDOLL: What kind of precious aquatic animal is the golden apple snail used as feed?

What kind of precious aquatic animal is the golden apple snail used as feed?

The golden apple snail is a mollusk of the family Physalis. It is very similar to field snails in appearance. It is large, has a wide range of diets, is highly adaptable, grows and reproduces quickly, and has a high yield. Eating insufficiently heated golden apple snails may cause parasites such as Angiostrongylus cantonensis to infect humans. It was introduced to China in 1981 and has now been listed as one of China's first invasive alien species.

Its meat is edible, but the taste is not good and it is not popular among people. In addition, it is also feed for some precious aquatic animals. Golden apple snails are large, have a wide range of diets, are highly adaptable, grow and reproduce quickly, and have high yields. They are farmed throughout China. Eating golden apple snails that are not fully heated may cause parasites such as Guangzhou roundworms to infect the human body. Eating raw or incompletely heated golden apple snails can cause infection, which can cause symptoms such as headaches, fever, and stiff neck. In severe cases, it can cause dementia or even death. Therefore, when eating golden apple snails, be sure to heat them thoroughly.

What are the benefits of raising snails and feeding soft-shelled turtles with green feed?

Using green feed to raise snails and feed soft-shelled turtles has low feed investment costs and considerable benefits, and is of great value for promotion in rural areas.

The benefits of green feed for snail farming and turtle feeding

Raising snails with green feed and then raising turtles with snails can convert green feed into animal feed, thus meeting the feeding requirements of fish. The snails commonly used are golden apple snails, which have high nutritional value, fast reproduction and high yield. They can provide turtles with sufficient feed for a long time and promote their growth. According to observations, a golden apple snail weighing 28 grams can lay 5,000 eggs in one mating, and the hatching rate can reach 90%. According to measurements, 2,000 snails per mu can breed 10 million small snails a year, and an average of 28,000 small snails are available for turtles to eat every day, which can meet the feed needs of 300 young turtles. Turtles like to eat small snails that are 45 days old, weigh about 20 grams, and live on the bottom of the water. Because the adult snails are large and have hard shells, turtles generally do not eat them. Newly hatched young snails mostly live on the water surface and are not easily preyed on. Therefore, there is no danger of extinction, and one-time planting can benefit the whole year.

Second, when using green feed to feed snails and turtles, the following points should be noted:

1. In addition to understanding the basic techniques of raising soft-shelled turtles, you must also master the high-yield breeding techniques of golden apple snails. If the yield of golden apple snails is low, the conversion rate of green feed will be reduced, and the turtle breeding will not be able to achieve high yields.

2. Be sure to choose green feed that the golden apple snail likes to eat. According to feeding observations in various places, the green feed that golden apple snails prefer is duckweed, water hyacinth, water spinach, amaranth, cabbage, eggplant, winter melon, white melon, pumpkin, peanut vine and taro, etc.; concentrated feed includes rice bran, corn flour, bran, peanut cake, etc.

3. Every time snails are put into the turtle pond, other turtle feeds must be fed in the first month because the snails have a process of spawning and hatching.

4. Golden apple snails are not suitable for raising young turtles, because young turtles have low feeding ability and are difficult to use. If you want to raise young turtles, you must fish out the young snails, take out the snail meat, cut it into pieces and put it in a food tray, so that it can be effectively used.

5. Golden apple snails are sensitive to dissolved oxygen in water. The higher the dissolved oxygen in water, the better they grow. When the dissolved oxygen per liter of water is less than 3.5 mg, they will not eat much, and when it drops to 1.5 mg, they will die. Therefore, it is best to have gravity drainage in the breeding pond. If it is a static water pond, the water should be changed frequently, and it is best to install oxygenation equipment. The pH value of water should be neutral. You can also put an appropriate amount of silver carp, bighead carp or tilapia in the breeding pond to let them eat the feces and microorganisms of soft-shelled turtles and golden apple snails to purify the water quality. Another point that farmers should be reminded of is that golden apple snails have been listed as one of the 16 biological invasive species in my country, and they must be careful to prevent them from escaping. In the future, if you don't raise soft-shelled turtles, you should completely kill the farmed snails and snail eggs to avoid harm to economic crops such as rice.

The food of turtles is also divided into very detailed categories. When they are young, they like aquatic insects, earthworms, tadpoles, shrimps and other foods; when they grow up, they like fish, shrimps, snails, and can also be fed some fruits, grains and other foods. The preparation of turtle feed is not a simple mixture, but a scientific preparation based on the characteristics of various feeds and the palatability of turtles.

In this way, materials can be fully utilized, forming a circulation circle, and breeding will be more ecological, green and environmentally friendly.

Raising snails with clean feed can make them grow healthier, and they will not be polluted or eaten badly.