-
1, breeding site: yellow eel to the environment adaptability is strong, to the water body, water quality requirements are not very high, can be used both general ponds can also be used cement pond breeding, yellow eel has burrowing, like dark, like warm and good escape habits, so the choice of breeding site should choose the hole head warm, summer shade, good soil quality, convenient drainage and irrigation place, and can maintain a perennial micro flow, the surrounding pollution-free environment.
2. Eel seedlings: There are two kinds of yellow eels in domestic breeding, one is the ligament yellow eel of Thailand and Vietnam, this kind of yellow eel has strong fecundity, omnivorous and fast growth, but the meat taste is not good, the market price is low, the other is China's native temperate yellow eel, on the one hand, it can be directly collected from the natural environment and small specifications are also yellow eel seedlings, on the other hand, it can also be bred from the Huangshan breeding farm for this strain of eel seedlings, the taste is good, but the first is high, so the yellow eel seedlings are mainly three, directly from the wild catch, market procurement, Artificially propagated seed breeding.
3. Feed: The feed used in the artificial breeding of yellow eel in China is mainly divided into three categories, animal fresh bait, animal scraps, and artificial compound feed. Natural insects can also be used as eel feed, among which animal feed is the best choice for eel feed, because of its high protein content and high conversion.
4, adult eel breeding technology: to create a suitable environment, aquatic weeds play a key role in the process of re-breeding, strict control of the selection of seeds, the quality of seedlings directly affects the cost and quality of breeding in the later stage, scientific feeding work, the nutritional value required by the eel for the growth of the eel and disease prevention and control has a very important role, regular prevention of disease Strengthen daily management, keep the water fresh, the temperature is not stopped, the prevention and control of the eel escape, the prevention and control of floating head.
5. Disease: Yellow eel in the natural environment long-term evolution and adaptation, disease resistance is strong, the probability of infection is also small, the same artificial breeding process is also rarely diseased, but under the high-density feeding, squid poor management, leech deterioration will also lead to the occurrence of disease, caused by the main cause of eel disease, external causes, improper use and cleaning of eel ponds, poor water quality, internal causes, eel itself physique, imperfect breeding conditions, high density, improper bait, harmful substances into the country and other factors.
-
1. Select a place to build a pool.
The feeding pond of yellow eel should have a certain wind resistance, sufficient light, and high-quality water source. According to the number of breeding to control the size of the breeding pond, and then lay drainage and irrigation measures, in the inlet and outlet to set up barbed wire to prevent the eel escape. After the establishment of the breeding pond, do a good job of disinfection of the pond, first fill the pond with water to see if there is any leakage.
Then soak it for 3 days, soaking about 4 times. After soaking, put soil and farm manure at the bottom of the pond, and then plant an appropriate amount of aquatic plants. It can not only regulate the temperature of the pond, but also allow the eel to rest, and its water level is kept at about 15 cm.
2. Stocking fish fry.
About a week before stocking the fry, the pond should be disinfected and the whole pond should be evenly sprinkled with quicklime. After disinfection, the pond is filled with water, and the temperature of the pond water should not be too different from the water temperature of the fry before stocking. To ensure the high quality of yellow eel seedlings, have a strong growth ability, and be able to adapt to the breeding environment as soon as possible, all yellow eel seedlings should ensure that the size difference is not large, otherwise it is easy to eat too little.
Then it is necessary to control the breeding density according to the number of breeding and breeding conditions. It is best to polyculture with a small amount of loach, which can effectively increase the amount of dissolved oxygen in the water.
3. Breeding management.
The feed requirements of the eel will change as its growth stage changes. Therefore, in order to ensure that the nutritional needs of yellow eels are met, the feed should be adjusted reasonably. For example, during the week, the main feed of yellow eel seedlings is plankton, so we need to improve the fertility of the water body and cultivate plankton.
Yellow eels have the habit of eating at night, so we need to feed properly every evening in the early stage of breeding. Then, as the growth age of the eel increases, the feeding time can be appropriately advanced. After about two weeks, it is fed about three times a day to ensure that there is sufficient nutrition for the growth of the eel.
4. Water quality regulation.
Water quality is a point that we need to pay attention to in the breeding process. Due to weather conditions, feeding of bait and yellow eel droppings, etc., the water quality will be polluted, so we need to adjust the water quality regularly. After each feeding, it is necessary to pay attention to the uneaten bait of the yellow eel in time.
It is necessary not only to prevent water pollution from polluting, but also to avoid the deterioration of bait and the accidental ingestion of yellow eel. We need to adjust the frequency of water change according to the change of season, for example, in the spring, the water needs to be changed about once a week, and in the summer, the water needs to be changed about once every 4 days. In addition, new water should be injected frequently to ensure the quality of water at all times.
Li Bai's "Jingting Mountain", "Difficult to Walk", a small poem by Wang Wei, "Over the Probation Temple, Tanxing Shangren Mountain Courtyard", "Mountain Dwelling Autumn Twilight").
One peng, one zang, four zuan, four sounds.
2。Staring, and two as one, absent-minded. >>>More
At a glance, you know that you are afraid of fouls, and when the summer comes, you can go to a basketball camp, and you will quickly improve your basketball skills, and the rules are not a problem!
<> I can't determine the specific context of your question and therefore can't provide a detailed answer. Generally speaking, the commission fee when applying for and registering a technology introduction contract depends on the specific details agreed in the contract. You can refer to the content of the contract to fill in, or consult with the relevant authorities to confirm the filling method.
The first fish tank, fishing gear, and goldfish are simply sterilized with salt or potassium permanganate before feeding. >>>More