Hippocampus grows in a natural environment with good environment, and often attaches to seaweed. In the artificial breeding of hippocampus, some people often pay less attention to their ecological requirements, and often have poor water quality in the farm, such as low salinity, large changes; water quality is turbid, there are many biological organisms in the water, and the water quality is not fresh. Sewage impact; The pH value of the water varies greatly, the type of food is monotonous, the supply is not timely, it is not fresh, the light is too strong, and the water temperature is not stable. Now introduce the artificial breeding technology of the hippocampus. The choice and intensive breeding of broodstock The hippocampus can be obtained by self-cultivation, foreign introduction, or natural fishing. When choosing a pro-horse, the individual must be large, healthy and disease-free, active, not floating on the water, strong in feeding power, complete in shape, and beautiful in color; female bloating Large, reproductive hole prominent; male fish nursery bag swelling and long is better. The best age is 1 year to 2 years, and the ratio of male to female is 1:1 to 2:1. For broodstock to be transported to the farm, care should be taken. For short-distance transport or sea transport, buckets, otters, or special containers are generally used to transport water; long-distance ground transportation mostly uses nylon film bags for oxygen transport. Before the arrival of the seahorse breeding season, attention should be paid to the intensive care of the pro-haima horses. General adoption of sparse, stocking 20 fish per cubic meter of water, to ensure the supply of food, can not be interrupted, requiring fresh palatability, quality and quantity enough to normal development of the gonads. In addition, the water quality at this time should be kept fresh. The temperature of the water is constant. Be careful when handling it to prevent the pro-sea horse from being injured. Mating and seedling cultivation The hippocampus has a long breeding season. It breeds from April to October every year. From May to July it is the peak season for hippocampus breeding. It has the best seedling raising effect. Therefore, in the case of determining the seedling raising time, the water temperature reaches 20 in advance. At °C, the male and female progeny of the seahorse were polycultured in 1:1 to allow them to mate with each other. This can be done on its own without the need for artificial insemination. When found to have parental seahorses for child rearing, they should be moved immediately to the rearing ponds. Each pond should be stocked with 2 to 3 tails to avoid affecting the embryos due to crowding. development. At this point, we should continue to raise the animals carefully, and we must be especially careful about the management operations. We must strive to stabilize the relative density and temperature of sea water, fresh water, air circulation, and adequate feed. Pro embryonic development of the pro-hippocampus is perfect, you can produce their own seedlings, usually before dawn, every production and seedling in a few minutes to more than 10 minutes, but also extended to 1 day to 3 days. When the seedlings are produced in a short period of time, the quality of the seedlings is good; the seedlings grow for a long time and the quality of the seedlings is poor. After the seahorse is produced, the pro-horsema can be moved to the intensive culture pool to prevent it from swallowing the small hippocampus. Hippocampus larvae have poor viability and it is very important to keep the water clean. Always change the water and remove dirt from the bottom of the tank. Change the water every 2 days to 3 days. At the same time, the larvae have poor adaptability to water temperature, and require high water temperature. When the water temperature is below 22°C, it will be poorly developed and the survival rate will be reduced. Therefore, the water temperature is required to be constant, and the temperature difference between the front and rear when changing the water is preferably not more than 2°C. Usually in the morning or in the morning. Afternoon water temperature is generally higher, should not change the water. In order to avoid the young seedlings leaving the water for a long time, in the first 3 days to 5 days, it is not necessary to take the method of transfusing the seedlings to change the water. The 1-2/3 old water can be drained every day from the original nursery pond by the siphon method. The dirt at the bottom of the tank is sucked out and added to the precipitated new seawater. Strong hippocampus seedlings can feed on their own shortly after they are produced. Normal output can be fed on the same day. Within 2 days to 3 days after production, copepods are fed to unorganized larvae or six-legged larvae, followed by seedlings. Grows from small to large adult copepods or amphetamines and feeds 3 to 4 times a day. Restocking management Before stocking, wash the culture pond first, and then rinse it with fresh water until it is washed with disinfecting drugs. This is for the purpose of killing the parasites of the enemy's eggs and fish, and then deposit the precipitated seawater into the pond. 1 meter to 1.5 meters, and measure the water temperature and relative density in the pool, adjust it to the appropriate level, and then put a certain amount of bamboo pieces as the attachment of the hippocampus at rest. Choose well-developed hippocampus seedlings with a body length of 2 cm to 4 cm and put them in the pool. The water gates in the pool should be kept closed to prevent pool water loss. After stocking, we must do the following work. Daily management (1) Adjust light and control water temperature. In summer, the water temperature is high and the sunlight is strong. During the day, bamboo curtains should be covered and air should be turned on at night. In winter, the water temperature is low and the sunlight is weak. The film is kept warm at night and the sun is exposed during the day to increase the water temperature. (2) Regular observation of hippocampal activity. If you find abnormalities such as loss of appetite, floating head, side recumbency, rapid breathing, or disorder or loss of balance in the hippocampus, find out why. Whether it is water quality, temperature, or disease predators, take timely measures to resolve the problem. (3) Control water quality and change water frequently. Seahorses are sensitive to changes in oxygen content, relative density, and other factors in water. In the rainy season, it is necessary to prevent fresh water from entering people and immersing dirt; usually the seawater that has been pumped is subject to sedimentation before use. When changing the water, the water temperature and relative density must be determined in advance. The water temperature should preferably be between 20°C and 30°C, and the temperature difference should not be too large. Usually when the water temperature is high, the water should be replaced every 1 to 2 days. When the water temperature in winter is lower than 20C, the water is changed every 4 days to 5 days. (4) Adjust stocking density at a proper time. Seahorses are not suitable for polyculture, so they should continue to grow with the seahorses. They should be stocked in batches by individual size, and the stocking density should be constantly adjusted. Usually 6 centimeters in length, sparse to 500 cubic meters of body water; when the body length is 10 centimeters, sparse to 150 cubic meters of water body; the body length of 13 centimeters into the sea horse, then the stocking of 30 bodies per cubic meter of water to 50 tail. The acquisition and delivery of bait Because hippocampus eats fresh live bait, it brings certain difficulties to artificial breeding. Now it is generally based on the feeding habits of different developmental stages of the hippocampus, the combination of natural fishing and artificial breeding, live bait and fresh dead bait mixed feeding methods, such as The copepods required for hippocampus seedlings have been artificially propagated in addition to the estuaries and natural ponds. Hippocampus bait can be used fresh shrimp, dried hair shrimp or frozen shrimp. From the seedling stage to the adult stage, shrimp or artificially propagated shrimp can be used. In actual production, efforts are made to expand the source of bait from three aspects. 1 Make full use of natural feed sources, such as copepods, amphipoda, clams, shrimp, giant shrimp, white shrimp, prawn and krill. Improve fishery tools and methods to improve efficiency and quality. 2 A large area of ​​artificial breeding bait, such as cocklepods pool culture, can first wash the pool with 2ppm fish rattan essence, and then use 80 mesh sieve filter water, introduced copepods into the pool, according to their nutritional needs, preparation A certain amount of chemical fertilizer is applied to promote its reproduction and it can be captured in about 20 days. Breed while catching. The shrimp can also be bred using this method, but it is only necessary to feed solid foods such as fishmeal and bean flour cake. 3 domesticated hippocampus edible frozen baits and processed baits, frozen various shrimp, boneless fish, minced by mincer, pressed into strips, cut a small segment, mixed in fresh bait feed, can supplement the lack of sea-fish bait . Feeding is a meticulous and important task that cannot be performed at will. From the seasons point of view, from July to October, the hippocampus has a strong appetite and the fastest growing period. At this time, it is necessary to achieve quality and precision. Feeding should be carried out during the day, every 3 hours to 6 hours, and in the morning. More money in the morning and less in the afternoon. Small seedlings can be taken in small quantities and multiple feeding methods. Feeding freshwater horns must strictly control the amount of feed. Adult fish can be fed twice a day, and the amount of feed to the very hungry hippocampus should gradually increase. It is not advisable to vote too much at one time, so as to avoid a large number of deaths after hippocampus gluttony. The size of the bait should also be suitable for the hippocampus to swallow, and the action should be light when feeding, so don't disturb the seahorse too much. Winter conservation measures The hippocampus is a tropical and subtropical fish. Its growth season is mainly in summer and autumn. When the water temperature is low in winter, the feeding is reduced and the growth is almost stopped. Doing well in hippocampal cold preservation and wintering conservation is a problem that can not be neglected in artificial breeding of hippocampus. At present, the main cold prevention measures taken in various places are as follows. (1) Nylon film insulation method This method is commonly used in Guangdong Province where the low temperature period is short. The method is: using bamboo or wood on the top of the outdoor cement pool to form a "human" shaped scaffolding, covering the nylon membrane, connecting with the poolside to form a sealed thermal hood, so that the heat in the pool will not be lost, and the sunny part can be opened in the south Films to circulate air. (2) Indoor heating method This method can be used in a cement pool in a glass-reserve room or an ordinary house. A fire tunnel can be set under the pool, and the water temperature can be increased when the furnace door is burning coal or burning wood. If electricity is available, electric heating rods can also be used, and heating pipes can also be used inside the room. (3) Plastic cylinder insulation method When the room temperature is low, the plastic cylinder is used to heat the water and put it in the pool so that the plastic cylinder can be used in the semi-floating pool where the heat slowly diffuses into the pool. Fire Protection Device,Wet Chemical Fire Extinguisher,Co2 Extinguisher,Home Fire Extinguisher DONGGUAN TENYU TECH.INC , https://www.tenyutech.com