Autumn is the most suitable season for growing shrimp. Through six measures including water quality, bait, aquatic weeds, patrol ponds, disease prevention, and floating prevention, we can strengthen the management of aquaculture and enable the rapid growth of shrimps to meet the specifications of commercial shrimps, thereby increasing the economy. benefit.
Strengthen the management of water quality
Generally change the water once a week, each time changing the water 1/3 to 1/4, pay attention to the temperature difference should not exceed 2 degrees, generally once every 10 days to 15 days use quicklime, can also be applied such as yeast, nitrifying bacteria, photosynthetic bacteria , Bacillus, Bdellovibrio, Bifidobacteria and other micro ecological agents to improve water quality, so that the water quality in the "fat, live, tender, cool" state.
Intensified management of bait feed
To properly feed the food, the number and number of feedings can be increased in the early autumn, 2 times to 3 times a day. In the later period, the number of feedings and feeding amount should be appropriately reduced and high-quality feed should be used for feeding. If there is no special feed for shrimp, it can be replaced by Macrobrachium rosenbergii. It should be thrown in the deep water of the pond during the day and in the shallow water of the pond in the evening. When bait feeding, it depends on the weather, water color, water quality, crab activity, and flexible control. It should also follow the “Four Sets†principle of “timing, positioning, qualitative, quantitativeâ€. Make sure the shrimp eat well.
Strengthen the management of aquatic weeds: Manage the plants in the pool, keep the plants in the shrimp ponds well, and benefit the covert clams of the shrimps. The tender grasses can also provide shrimp bait. Therefore, the plants in the shrimp ponds need to maintain 30 % ~ 40%, the excess part of the plants need to be removed in time with artificial, can not use herbicides to remove drugs, so as not to destroy the rotting water plants, seriously damaged the water quality, affect the normal growth of shrimp, the lack of water plants in the upper layer of water supplement peanuts, water Cucumber.
Strengthen patrol management
Adhere to the morning and evening, especially during the second half of the night. Pay attention to observe the situation of shrimp eating and the changes in water quality, remove the rotten plants floating on the surface in time, and find solutions to the problems in time.
Strengthen the management of disease prevention and control
Autumn is the second peak season of the disease epidemic in a year. Active measures such as “no disease prevention, disease prevention, and early disease management†are adopted, and red and black shank diseases that damage green prawn can be based on water color, water quality, etc. Apply lime, etc. to adjust the pH of the water and disinfect it regularly with a disinfectant. In the feed should be properly added photosynthetic bacteria, feed yeast, a variety of enzyme products and other micro-ecological preparations of antibiotics, fed with oral drug mix to improve the disease resistance of the shrimp.
Strengthen the management of floating heads
Make full use of aerators and oxygen-enhanced tablets to create a good breeding environment. The use of aerators should be open at noon on sunny days and not open in the evening; open in the early morning on cloudy days and not open during the day; floating heads should be open before rainy days in the middle of the night. the rules. Prepare oxygen-enhanced tablets, such as oxygen and oxygen tablets, so that the oxygen-free floating head can be used as an emergency.