Look at my combination of boxing to knock down "sub-salt" and not rebound yet.

2021-10-09

Qingdao Zhongren Animal Medicine Co., Ltd

Chinese aquatic products

Look at my combination of boxing to knock down "sub-salt" and not rebound yet.

Look at my combination of boxing to knock down "sub-salt" and not rebound yet.

 

Causes of 1. formation

Nitrite is an intermediate product in the process of converting ammonia into nitrate. In the middle and late stages of aquaculture, a large number of baits will cause the accumulation of residual baits and excreta in the water body. In addition, the regular use of disinfectants will destroy the balance of bacteria in the water body, resulting in insufficient supply of oxygen, hindering the nitrification process of nitrogen accumulated in the water body, resulting in the increase of ammonia nitrogen and nitrite content in the aquaculture water body, the problem of nitrite is the most prominent.

2. causes harm

Nitrite can enter the blood by gill filaments, affecting the oxygen carrying capacity of blood, tissue hypoxia, at this time fish, shrimp food intake decreased, gill tissue lesions, breathing difficulties, restless. Serious, can make fish and shrimp poisoning, leading to fish and shrimp some metabolic organ dysfunction, physical decline, at this time the fish and shrimp are prone to disease and death.

3. Solution

1. At noon on sunny days, more aerators will be opened to break the water stratification, promote the photosynthesis of algae in the water, and make the pool water have sufficient dissolved oxygen to promote the conversion of nitrite to nitrate.

2. Use chemical bottom modificationBeautiful bottomChange the bottom, oxidize the black mud and feces at the bottom of the pool, and reduce the oxygen consumption at the bottom of the pool.

3. Use fertilizer bacteriaprobiotic bolusWith phosphate fertilizer (balanced water nitrogen and phosphorus ratio),Diatom WangWater transfer fertilizer water increases the oxygen production of pond algae.

 

1. Case details

Time: August 12, 2019

Venue: Xintan Salt Field, Yancheng, Jiangsu

Breed varieties: carp set of Penaeus vannamei

Farming area: 200 mu, water depth 1.6 meters

Water index: ammonia nitrogen 0, nitrite 0.7,pH8.1

Description of the situation: Affected by the typhoon, the rainy weather for several days made the pond water turbid and thin, the shrimp had floating head in the morning, and the carp feed was significantly reduced. After measuring the rise of nitrite to 0.6, the preliminary diagnosis was that the water body was lean after the rain and the hypoxic reaction of fish and shrimp caused by the rise of sub salt.

 

2. Treatment scheme

1. Use the first morningBishui Jiedu Ann(40 mu/bottle) detoxification andBeautiful bottom(40 mu/barrel) change the bottom and soak in the evening.probiotic bolusandDiatom WangSpare.

The next day, it was sprinkled and soaked first.probiotic bolusandDiatom WangFertilizer water, then use phosphate fertilizer to maintain the balance of nitrogen and phosphorus ratio in water, and promote fertilizer water.

 

3. Effect feedback

After two days of fertilizer and water, the color of the pond water changed from turbid to tender green. In the morning, the floating head of fish and shrimp disappeared, and the food intake of carp improved significantly. The sub-salt was measured to decrease from 0.6 to 0.2 and the pH rose to 8.5. After four days the sub-salt was reduced to 0.1.

 

 

4. Case analysis
In the middle and late stages of freshwater fish culture, the amount of feed increased significantly, feces and residual bait began to accumulate, the oxygen consumption at the bottom of the pool increased, coupled with the decline in water fertility in rainy weather, the lack of bottom oxygen caused by the increase in sub-salt, affecting the normal growth of fish and shrimp.Bishui Jiedu AnnIt can directly reduce the toxicity of ammonia nitrogen and salt in water, break the stratification of water, and promote the dissolved oxygen in the atmosphere into the water.probiotic bolusContains a variety of beneficial active bacteria, can directly absorb and transform ammonia nitrogen, sub salt and promote the reproduction of algae. The use of phosphate fertilizer can balance the proportion of nitrogen and phosphorus in the water body and prevent the excess of nitrogen. When the water body is thin, you can useDiatom WangFat water quickly, provide sufficient dissolved oxygen for the pond, and matchprobiotic bolusCan make the fertilizer more lasting.

 

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