A fair feeding The moderate temperature during the early autumn is the second time for the growth of fish. It can adapt to the number and number of feedings, and it can be fed 2-3 times a day. The daily feeding amount is 3-5% of the weight of the fish and the feed is at the same time. The quality must also be relatively progressive. After entering in October, as the water temperature gradually declining, it can be used as the number of feeding out and feeding amount, feeding once a day, feeding amount of 1%-3% of the fish's weight, feeding can be continued until mid-November, Special exceptions are some species of fish ponds, and late-freezing is an aspect that should be exaggerated in late autumn. Feeding quantity control is appropriate for fish "eight full". Normal fish feeding should improve the quality of feed; crabs should increase the proportion of fodder feeds, feed animal feed should account for 65%, and daily feed should be 10% of total crab weight. Since the beginning of October, as the water temperature has accelerated, the amount of feed has gradually decreased, and the daily feed volume has dropped to 3%, 4%, and 4-5% of the total weight of fish, shrimp, and crab respectively. In the autumn season, the pond fish breeding should be based on water quality regulation. The water quality is good. The food intake of the group fish can be improved. At the same time, the quality of the feed should be ensured. It is in line with the demand of the fish for egg white and fat, and it is less than 20% of the fresh fish. Fish or high-quality chilled fish slurry feeding, can greatly enhance the feeding intensity of the group of fish, and improve their growth rate and fullness; when properly added to the prevention of enteritis drugs when feeding, such as Andrographis, garlic, etc., use a few days, the result is more it is good. Second, catch round After the growth of pool fish in the last six months, most of them have reached the market specifications, which can be arrested in due course. When the fish arrives at the commodity specifications, they must be sold as soon as possible. Stagger the time-to-market and the exceptionally high density of culture ponds. In a more costly environment, don’t hesitate to sell. You can sell a department first, reduce the density, and promote the growth of the remaining fish. , Eliminating pond pressures, catching the density of fishes, and relieving the fish's susceptibility to food habits, living habits, and living space. Dealing with the limitations of excessive population density on the growth of the group is conducive to enriching the productive potential of the pond, but In order not to increase the weight of the listed fish, it was not possible to feed a large amount of feed on the day before the arrest, and to prevent the fish from eating too much and died in transit. Can also be based on the market price of the environment to meet the market, the wrong time, postponed to New Year's Day or the Spring Festival and then listed again in order to obtain the best economic benefits. After the arrest, some fish species should be added in real time to prepare for the next year's fish farming. At this time, the benefit of supplementary fish species is that the fish species will have a longer life after the pond and can increase the size of the fish species; second, the fish species can be adapted to the pond environment in advance, and the fish pond can be contracted to conform to the conditions after releasing the fish. Extending the life of the fish. If the pond fish, which has not yet reached the market requirement through autumn fattening, will be prepared for winter. Over-winter fishponds should be sterilized in clear ponds so that the fish in the ponds can have an excellent water environment; ponds are 2 to 3 meters deep, and the deeper the water, the more they can keep warm. Third, prevent the lack of oxygen floating pond head In the autumn, with the growth of fish, the density of fish in the pond reaches the maximum value in a year. Due to the large amount of fertilization and organic matter content in the feeding, the frequency of fish movement, and the large temperature difference between day and night, the pool water convection is fierce, and it is easy to appear "Turning water," intensive culture ponds easily produce signs of hypoxic floating head. Encountered rainy weather, the invention of fish to eat out, extended eating time, increased residual bait in the pond, exceptionally grass grass swimming full pond grass without signs of eating, it is clear that the water began to lack of oxygen. In the early morning, fish ponds were patrolled to inspect the water quality in the ponds, fish movements and feeding environment. If the quail before the sunrise, the squid gathered in the middle of the water, people into the pond into the water, so that the "floating head" is a slight floating head, no need for relief. If the grass carp "floats", the body becomes yellow and not clustered, and it is not afraid of people. Therefore, early morning and evening, especially at night, we must strengthen the patrol pond. When the invention of fish shows signs of floating heads, we need to immediately start the aeration machine to increase oxygen, or add new water into the pond, and properly discharge a part of old water to grow the pond. The amount of dissolved oxygen in the fish is protected against hypoxia. For ponds that are not equipped with aerators and cannot refill with fresh water, the ponds invented in the absence of oxygen can receive pumping water from the original pool of the pump and then drop the water from a high place. A wooden board can be arranged at the sink to make the water fall on the wooden planks. Splashes of water, even if the growth area of ​​water and atmosphere and the duration of snoring, increase the amount of dissolved oxygen in the water; or splash "oxidizer" and other chemical agents; also can be used to mix yellow mud 10kg water slurry and 8kg salt solution The pool is splashed with sprinkling, or can be dissolved and sprayed with 5 kg of alum or 20 kg of salt water per acre, and the rot grass and residual baits are removed in real time to disinfect and clear the food market. For crabs, fish and other easy-to-escape aquaculture species, meticulous prosecution against escape settings and pool defects, check the balance of water outlets to prevent escape. Strengthen anti-theft inspections at night. Fourth, do a good job of prevention and treatment of fish diseases As the saying goes: “Blooming outcrops, the death of fish does not stop.†Looking at the history and practice of fish farming in ponds, fish diseases will enter another prevailing peak period after the beginning of autumn. Before and after white dew, it is the onset of diseases such as grass carp enteritis. We must strengthen feeding management, do a good job of feeding and prevent the pollution of water quality due to overfeeding. We must also stop feeding constitutions that do not meet low-fat fish; if necessary, we must regularly add new water to improve pond water quality; Maneuvering to prevent fish injuries and stop bacteria and parasites from getting infected. Therefore, mastering the discipline of the occurrence of fish in the autumn and accepting the positive steps of “prevention without disease, early treatment with diseaseâ€, talents received the results of prevention and control with twice the effort. We must adopt the principle of combining external consumption with internal medicine to prevent diseases. Usually every half a month with 250 grams of bleaching powder dissolved in water, sprinkled around the food market, spilled for three days in a row, can also participate in the guess to participate in garlic seeds (per 100 kg feed plus 0.5 kg), salt (per 100 kg feed plus 1 kg) Prevention of bacterial fish disease. After dissolving copper sulphate and ferrous sulphate mixture in water, Quanchiposa (0.5 g of copper sulfate and 0.2 g of ferrous sulfate per cubic meter of water) was used to prevent parasites. In shrimp and crab ponds, chlorine dioxide and shrimp and crabs are used for disinfection and disinfection once every 20 days. Disinfection is usually done in a fine climate. At the same time, detoxification, calcium, and other drugs are added to the feed. , once a month. V. Strengthen water quality management Ponds for breeding adult fish, especially intensive culture ponds, tend to cause deterioration of water quality due to more fish stocks, large amounts of fertilizers for feeding and more organic matter in water. Autumn ponds should be linked to higher water levels to improve the amount of fish in the water body and slow down the water temperature drop. Therefore, before the water temperature has not drastically decreased before this time, we must certainly do a good job in water quality management, and often inspect the changes in water quality and water quality. We must collect the leftover baits and debris every day, and we must rely on climate change and fish. In the sports environment, new water is added in real time to prevent deterioration of water quality. Water-convenient ponds should be connected to micro-flowing water or flushed with water for 10 days or so, each time adding 10-20 cm of water. Before the temperature is lowered, the pool water can be added to the highest water level to provide maximum exercise space for pond fish; ponds lacking water sources. Every 15 days to 30 days, the average depth of water is 1 meter per acre, and 15kg -20kg of quicklime is stacked in the waters around the pond; 1kg of water per acre is also used with 10kg of quicklime. After adding water, the whole pool is splashed with water. To clarify the pond water. The aerator pond is set to catch every good day. The aerator is used to send the upper dissolved oxygen layer to the grassroots to eliminate nighttime oxygen deficiency and create an excellent living environment for the pond fish. Hypoxia pan panic disorder. Medical Consumables,Consumable Medical,Healthcare Consumables,Medical Device Consumables Shandong Zhushi Pharmaceutical Group Co.,LTD , https://www.sdzs-medical.com