CATDOLL : CATDOLL: What do artificially cultivated loaches eat?

1. What do artificially cultured loaches eat?

When feeding, you can feed wheat bran, rice bran, peanut cake, bean cake, vegetable cake and duckweed and other plant feeds, and appropriately mix a small amount of fish meal, silkworm pupae, etc. In addition, you can also promote the reproduction of aquatic biological bait by applying manure and green manure. Loach and other fish can be mixed.

2. How to raise loaches at home?

Artificial breeding of loach is the same as that of domestic fish. The type and dosage of oxytocin used are calculated for each female loach, which are: 0.5-1 carp pituitary, or 2-3 frog pituitary, 100-150 international units of chorionic gonadotropin, or 5-10 micrograms of analogs (LRH-A). The dosage for male loach is halved. The injection volume of solvent is 0.1-0.2 ml, and it is injected with a 1 ml syringe and a No. 4 needle. The injection site is between the pectoral and pelvic fins on the midline of the abdomen, and the dorsal muscle can also be injected. Because loach likes to drill, it can be wrapped with warm gauze during injection (exposing the injection site). After injection, it is placed in the spawning pond, and the subsequent work is the same as natural breeding. The water temperature is 20-25℃, and it will estrus and lay eggs after 10-20 hours.

If artificial insemination is adopted, the male and female loaches injected with oxytocin can be temporarily raised in small ponds or cages respectively. When the water temperature is 18-25℃, after 10-15 hours, the female loach's abdomen is gently pressed and eggs flow out, and dry artificial insemination can be used. The operation method and precautions are the same as those of domestic fish. The eggs are immediately put into the nest after artificial insemination. The method is to take a bucket of clean water, spread the fish nest on the bottom of the bucket, and then one person gently shakes the fish nest and stirs the water at the same time, and the other slowly pours the eggs into the bucket so that the eggs are evenly put into the nest. After putting them into the nest, they are transferred to the hatching pond for incubation. The fertilized eggs of loach can hatch normally in the water temperature range of 20-30℃, and fry can generally be hatched in about 2 days. Use small containers with still water and change the water frequently (twice a day) for a good hatching effect. It is appropriate to put 400-600 eggs per liter of water. Avoid shaking during incubation. During incubation, 0.1×10-6 malachite green solution can be used for disinfection to prevent parasitic water mold.

The newly hatched loach fry cannot move freely, and they use their heads to attach to the fish nest or other objects, and use the yolk for nutrition. The fry hatched in the pond are generally kept in the original pond for cultivation, and the water depth is maintained at 20-30 cm. The density is preferably 500-1500 per square meter. If it is too dense, some fry should be removed and raised in another pond.

The loach fry start to eat 3 days after hatching. At this time, they should be fed with boiled and ground egg yolk or fish meal suspension several times a day, and the feeding amount should be limited to one hour. After 2-3 days, they can be fed with water fleas, rotifers, crushed silkworms or silkworm pupae. After about 10 days of cultivation. After about one month, when the fry grows to about 3 cm, they can be transferred to the fish pond, or they can be directly placed in rice fields, ponds or pits for adult fish breeding.

The area of ​​the fish pond should be 30 to 50 square meters. Before stocking, the pond should be cleaned and disinfected, and basal fertilizer should be applied to cultivate bait organisms. The stocking amount is about 30 grams per square meter (800 to 1,000 fish). Feed the fish with plant feed within half a month after stocking, twice a day, and the amount is 3% to 5% of the fish body weight. In summer, the water in the fish pond is shallow and the water temperature is high. Pay attention to water quality changes at any time and change the water frequently. When the fish grows to 8 to 10 cm, it enters the adult fish breeding stage.

3. Is there any difference in nutritional value between artificially cultivated loaches and natural loaches?

No difference. Perhaps farmed ones are better.

【Nutritional ingredients】

Loach is rich in protein, fat, carbohydrates, mineral elements such as calcium, phosphorus, iron, and a large amount of vitamins. The content of vitamin B1 is 3 to 4 times higher than that of anchovy, yellow croaker and shrimp, and the content of vitamin A, vitamin C and iron is also higher than that of other fish.

【Medicinal properties and effects】

Loach is mild in nature and sweet in taste. It has the effects of warming the spleen and stomach, removing dampness, curing hemorrhoids, strengthening yang, stopping sweating, replenishing qi, strengthening essence and blood. It is an excellent auxiliary product for treating acute and chronic liver diseases, impotence, hemorrhoids, etc. In addition, the mucus secreted from the skin of loach, the so-called "loach slippery fluid", has good antibacterial and anti-inflammatory effects, and can treat urinary obstruction, hot stranguria, bloody stool, carbuncle, and otitis media.

【Eatable】

It is suitable for people with weak body, spleen and stomach deficiency, malnutrition, night sweats, cancer patients after radiotherapy and chemotherapy, acute icteric hepatitis, impotence, hemorrhoids, skin scabies and itching. In addition, loach is rich in vitamin B1, has a unique flavor, tender and soft meat, and is easy to digest and absorb. It is an ideal anti-cancer food for cancer patients; it contains low fat content and less cholesterol, and is a high-protein and low-fat food. It also contains an unsaturated fatty acid, which is beneficial to the elderly and cardiovascular patients; at the same time, loach can sober up and reduce the damage of alcohol to the liver. Therefore, people who often drink should eat more loach.

4. Artificial propagation technology of loach

Is it fully artificial or semi-artificial? Fully artificial means that after injecting oxytocin (HCG, A2, DOM), the male spermatozoa are ground and the female eggs are squeezed artificially for full artificial fertilization. Semi-artificial means that after injecting oxytocin, the parent loaches mate and lay eggs naturally, and then hatch and raise the seedlings. The main breeding technology of loach is the seedling raising technology from splashes to inch pieces.