Feeding method of mullet
Ponds or potholes where domestic fish can be raised at ordinary times can be properly transformed to breed mullet into fish. The pond area is about 1 mu, and the water depth is1-1.5m. Around the pond, a fence 50-60 cm high should be built with brick, bamboo fence or polyethylene net to prevent mullet from jumping up and running away. According to the habit that mullet likes hiding and is afraid of exposure to the sun, some aquatic plants, such as water plants, water lilies and lotus roots, can be planted in the pond, and the planting area is one-fifth of the water surface of the pond. This not only provides a suitable environment for mullet, but also creates necessary breeding conditions for fish that produce sticky eggs, such as crucian carp, thus adding natural live bait for mullet. The pH value of the pool water should be neutral or slightly alkaline, and the transparency should be about 50 cm. If there is enough water, try to raise it in the form of running water, or inject fresh water frequently to keep the water fresh.
The stocking time is May-June. Clean the pond with quicklime before stocking, and the method and dosage are the same as those of the nursery pond. The stocking specifications should be neat and must be screened and kept in the pond according to the size specifications. The stocking quantity depends on the stocking specifications. Generally, the fish with a total length of 3 cm can be stocked10.5 million per mu. 8,000 fish species with a total length of 5 cm per mu; Full-length 10 cm fish, 0.5-0.6 million fish per mu; The total length is 15 cm, and it is appropriate to put 0.25-0.3 million tails per mu. If the water quality is good, the feed is sufficient and the feeding experience is rich, the stocking density can be appropriately increased; On the contrary, we should reduce the stock.
In order to prevent individual differences from killing each other in the breeding process, grading breeding can be adopted, which is generally divided into three grades of breeding. See Table 7 for the specifications and density of graded culture.
Specification and density of grading and monoculture of mullet
Graded feed specification (g/tail) Density (tail/mu)
10.25 to 1- 1.59000
2 1- 1.5 to 504500
350 to 4002200
Feed should be delicious and abundant. Animal feed mainly includes small fish, shrimp, insects, maggots, earthworms, frogs, tadpoles, mosquito larvae, chopped fish or livestock and poultry meat, and plant feed includes cakes, rice bran, corn flour and wheat bran. If the source of fresh feed is convenient and the price is low, it can be raised by feeding fresh bait. Take chopped chilled fish pieces as an example, the feed coefficient is about 6-7. If the animal feed is not rich, it can be fed with artificial compound feed. Compound feed can be mainly made of fish meal, cake meal, rice bran, corn flour and other raw materials. Granular feed is processed into granular feed, and its crude protein content needs to be above 40%.
Feeding feed should be timed, quantitative and fixed. Granular feed can be put on the feed table, or it can be hung in the water in a bamboo basket for mullet to eat. Fresh water is often injected during feeding, so that the water body can maintain sufficient dissolved oxygen and fresh water quality. The water injection port of the pond should be located more than 30 cm away from the dike, so as to avoid snakehead jumping and running away when the pool water is added. During the period, if there are obvious differences among mullet individuals, pull the net and sieve them in time, and move the super-long individuals into other ponds to avoid intraspecific killing.
Single culture of mullet is often restricted by factors such as poor source of live bait and high cost. In Taiwan Province Province, China, the artificial bait for mullet consists of 80% chopped low-quality fish and 20% eel feed. Thailand feeds 80% marine fish, 65,438+00% rice bran, 65,438+00% broken rice and vitamins. After stirring evenly, make balls on the bait table. Monoculture requires more investment. Therefore, it is necessary not only to develop cheap and palatable artificial compound feed, but also to domesticate it at seedling stage. Domestication method can be used to feed Daphnia with appropriate artificial compound feed, gradually increase the proportion of compound feed, reduce the number of live bait, and finally feed all the compound feed. In the process of domestication, live bait such as small fish should not be mixed, otherwise the mullet will chase the small fish and abandon the compound feed, resulting in a large amount of feed piled up at the bottom of the pool without being eaten, which will worsen the water quality and affect the growth of the mullet in Xiaoshan.
Because the market of mullet is good, in recent years, it is more common to raise mullet alone in Zhongshan, Panyu, Xiaoshan, Shaoxing and Hangzhou suburbs of Guangdong Province. In Guangdong, the yield per mu can reach more than 500 kilograms, and the economic benefit is several times that of the four major fish. The Chen brothers in Zuodong Village, Nanyang Town, Xiaoshan City, Zhejiang Province, each dug a pond with an area of 300 square meters and a depth of 2 meters, and put 4,000 and 4,600 mullet respectively. After 18 months of breeding, each household produced more than 3,500 kilograms of adult fish, with an output value of more than 80,000 yuan and a net profit of more than 40,000 yuan.
Medicinal efficacy of mullet
Cuttlefish is sweet and cold in nature, and has the effects of invigorating spleen and benefiting qi, diuresis and detumescence. For lying-in women and patients who have undergone surgery, using more than 500g mullet 1 piece, scraping scales, removing fins and intestines, adding a little water and salt, and stewing in soup can promote the healing of uterus and wounds, expel silt and regenerate. People who are weak after illness often eat mullet stew, which has the effects of nourishing the heart, eliminating dampness and reducing swelling. In addition, when there is no milk or a small amount of milk after delivery, use more than 500g mullet 1 piece, add water, yellow wine, salt, monosodium glutamate and stew after frying. When soup is as white as milk, even soup can be eaten. Its prolactin effect is far better than crucian carp soup and chicken soup.
For the treatment of chronic nephrotic syndrome, if the edema persists, you can cut and wash mullet with more than 500g, fill the belly with garlic and adzuki beans, wrap several layers with thick paper, soak in water, simmer with grey fire, eat lightly or dip in sweet and sour, and eat for several times a day for several days. It can be used for treating edema caused by nephropathy, heart disease, malnutrition, edema of pregnant women, beriberi edema, etc. 500 grams of mullet and 200 grams of wax gourd (cut into pieces) are cooked together, with onion 10 grams and a little salt. Use a tail of mullet, remove intestinal impurities, fill the leaves of Xanthium sibiricum into the abdomen, put 60 grams of Xanthium sibiricum in the pot, put mullet on the leaves of Xanthium sibiricum, add appropriate amount of water, simmer with slow fire, and eat lightly, which has the effects of expelling wind and detoxifying, tonifying deficiency and strengthening the body resistance.
Fishing method of mullet
The snakehead is a benthic fish, which usually lives at the bottom of the water. When frightened, it will get into the mud and hide, so it is difficult to catch it. However, in natural waters, during the spawning period of mullet, it is more convenient to catch because the parent fish has the habit of protecting seedlings. As long as you wait patiently near the fish nest with a harpoon in your hand, you can quickly insert the harpoon and catch it when you find a parent fish. Or put bait such as fish, shrimp or frog on the hook of ordinary fishing rod and send it into the water from the upper end of the fish nest. At this time, the parent fish guarding the nest mistakenly thought that the enemy was coming, and they would rise up and attack, swallowing bait and hitting the hook.