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The role of aerators in shrimp farming

2021-10-08 08:09:30
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In order to obtain high yield and high efficiency in shrimp farming, whether it is a high-position water storage method or an intensive culture mode, a basic and important condition is inseparable from the application of aerators. There are many types of aerators. The impeller type aerator is practical in shrimp farming. Its role in shrimp farming can be roughly summarized as follows:


1. The savior of prawns:


When the aerator is working, the impeller stirs the water to dissolve the oxygen in the air into the water and increase the oxygen content in the water. According to calculations, each kilowatt of the impeller aerator can add more than 1.8 kg of oxygen to the water per hour, so when When the prawns in the shrimp pond appear hypoxia and floating heads, start the aerator. The above-mentioned adverse symptoms can be quickly resolved.


2. The effect of promoting the growth of prawns and increasing production:


The impeller of the aerator stirs the water body, which can convection the two to three meters of the lower layer water and the upper layer water in the shrimp pond, and evenly mix the nutrients at the bottom of the pond with the water containing high oxygen on the surface of the pond. Especially in rainy days, the phenomenon of pool water layer can be broken, and the physical and chemical indexes of pool water can be consistent.


Turning on the aerator can increase the intensity of photosynthesis and promote the rapid growth of plankton in the whole pond. The water quality is fatter and the primary productivity of the shrimp pond is increased. The water color of the pond remains normal, the growth rate of prawns is accelerated, and the weight gain of shrimp is obvious. Thereby increasing the production and efficiency of prawns.


3. Detoxification function:


As we all know, the bottom of the pond is blackened due to long-term bait feeding and the new generation shoot products of the shrimp itself, coupled with the proliferation of anaerobic bacteria, the bottom of the pond emits ammonia nitrogen, hydrogen sulfide, carbon monoxide, carbon dioxide, etc. Toxic Chemicals.


By increasing oxygen, aerobic bacteria multiply, and the oxygen at the bottom of the pond is increased, so that toxic substances are continuously oxidized and decomposed into non-toxic substances, so that the water quality of the pond is improved. Even in the high temperature season of July and August, the bottom of the shrimp pond is not easy. Produce toxic substances to harm pond shrimps.


4. the utilization rate of bait is high:


Due to the high oxygen consumption of prawns, the use of aerators to increase the oxygen in the water will keep the prawns vigorously new and shoot, so that the bait can be fully utilized, the coefficient of the bait is low, the growth rate and weight of the shrimp are increased. Faster.


5. Remove body surface dirt and facilitate the distribution of pond shrimp:


The shrimp pond uses an aerator to make the originally static pool water agitated by the impeller of the aerator to form a water flow. The water in the pond changes from static and the shrimp body is continuously washed by the water flow. On the one hand, it plays a cleaning role. Body surface dirt, on the other hand, prevents toxic bacteria and parasites from easily infecting the body surface.


Traditional non-aerated pond prawns mostly cluster on the side of the pool or in a small area in the pond, while the aerated pond prawns are more widely distributed than non-aerated, relatively uniformly distributed, convenient for feeding, and have a high feeding rate of prawns.

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