Formula of floc nutrients for cultivating bio-flocs and beneficial bacteria as well as preparation and application

A biofloc and nutrient technology, applied in chemical instruments and methods, biological water/sewage treatment, special compound water treatment, etc., can solve problems such as the survival of beneficial bacteria in unsuitable breeding environments, the lack of nutrients, and the lack of beneficial bacteria species. , to achieve the effect of improving health and breeding survival rate, broad market promotion prospects, and high application value

Active Publication Date: 2016-05-04
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the current shrimp farming model mostly uses filtered or sterilized water for farming, most of the beneficial bacteria are also removed, resulting in a shortage of beneficial bacteria. , become the limiting factor for the proliferation of beneficial bacteria, so it is difficult to cultivate benefici

Method used

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  • Formula of floc nutrients for cultivating bio-flocs and beneficial bacteria as well as preparation and application
  • Formula of floc nutrients for cultivating bio-flocs and beneficial bacteria as well as preparation and application
  • Formula of floc nutrients for cultivating bio-flocs and beneficial bacteria as well as preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The nutrient composition of Example 1 flocculation is (composition 1): expanded corn powder 2kg, rice husk powder 0.5kg, humic acid 1kg, molasses powder 5.5kg, total weight of Bacillus cereus, Bacillus licheniformis and Bacillus subtilis powder 1kg (the ratio of three bacteria is 1:1:1, the total bacteria concentration is 1×10 10 cell / g). The farmed animal is Litopenaeus vannamei.

[0023] 1 material

[0024] 1.1 Experimental shrimp and culture management

[0025] The average body length of Litopenaeus vannamei (Litopenaeus vannamei) was (1.52±0.36) cm, and the average weight was (0.045±0.003) g. Temporarily raise for 1 week before the experiment. The breeding experiment lasts for 51 days. The experimental water is natural seawater after precipitation. The water is not changed during the entire breeding process. During the breeding process, it is continuously aerated and fed 4 times a day (8:00, 12:00, 16:: 00, 20:00), the feeding amount is calculated according to 3% of the...

Embodiment 2

[0047] The nutrient composition of the flocculation is (composition 2): 3.5kg of expanded corn flour, 0.9kg of rice husk powder, 0.6kg of humic acid, 4.0kg of molasses powder, 1kg of total weight of Bacillus licheniformis and Bacillus subtilis powder (the ratio of two bacteria 1:1, total bacteria concentration 1×10 8 cell / gram). The farmed animal is sea cucumber.

[0048] 1 Experimental sea cucumbers and breeding management

[0049] The average weight of sea cucumbers is (10.5±0.6)g, and the breeding test lasts for 51 days. The experimental water is natural seawater after precipitation. The water is not changed during the whole breeding process, and the artificial bait is fed twice a day. Calculated based on 6% of the body weight.

[0050] 2 Test method

[0051] 2.1 Experiment grouping: The experiment set up A group (blank control group), B group (adding flocculant nutrient), each group has three parallels, each group has 3×30 sea cucumbers. The experimental bucket is a 10 liters f...

Embodiment 3

[0069] The nutrient composition of the flocculation is (Compound 3): 3kg of puffed corn powder, 0.7kg of rice husk powder, 0.7kg of humic acid, 4.4kg of molasses powder, 0.4kg of Bacillus cereus powder, 0.4kg of Lactobacillus powder, Lactobacillus acidophilus 0.4kg of powder. The experimental animal was tilapia.

[0070] 1 Tilapia for trial use and breeding management

[0071] The average weight of tilapia is (15.5±1.1)g, and the breeding experiment lasts for 51 days. The experiment water is ground fresh water after aeration. The water is not changed during the whole breeding process, and the air is continuously aerated during the breeding process. Artificial bait is fed twice a day. The amount is calculated as 3% of tilapia body weight.

[0072] 2 Test method

[0073] 2.1 Experiment grouping: The experiment set up A group (blank control group), B group (addition of flocculant nutrient), each group has three parallels, each group has 3×15 tilapia. The experiment bucket is a finishi...

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Abstract

The invention provides a formula of floc nutrients for cultivating bio-flocs and beneficial bacteria as well as a preparation and an application. The formula is characterized in that the formula comprises the following components in percentage by weight: 20-40% of puffed corn flour, 5-10% of rice husk powder, 5-10% of humic acid, 40-60% of molasses powder and 10-20% of beneficial bacteria powder; wherein the beneficial bacteria is 1x10<8>-1x10<10> cell/g, and comprises Bacillus cereus, Bacillus licheniformis, Bacillus subtilis, Lactobacillus, and Lactobacillus acidophilus. The floc nutrients are widely applied to water bodies for cultivating prawns, sea cucumbers and fishes, so that formation of bio-flocs in the water bodies is accelerated, ammonia nitrogen and nitrous nitrogen and other harmful substances are rapidly reduced, and directed breeding of beneficial bacteria in the water bodies are improved. The floc nutrients are green and environmentally friendly, and have the advantages of substantially improved production benefits and reduced production cost, wide market prospects, usage convenience; only water is needed for dilution of the floc nutrients, and the diluted floc nutrients are sprayed into cultivation water once a day.

Description

Technical field [0001] The invention belongs to the healthy breeding technology of marine organisms, and specifically relates to a floc nutrient formula for cultivating biological flocs and beneficial bacteria, and a preparation method and application thereof. Background technique [0002] Shrimp is one of the important aquaculture species in my country. In 2012, the national shrimp production reached 1.69 million tons. Shrimp farming has become an important pillar of my country's fishery economy. In recent years, with the rapid development of industry, land and water resources for aquaculture have become increasingly scarce. Intensive shrimp farming under limited farming space conditions has become the development trend of future farming. In the intensive and high-density shrimp culture water, the accumulation of residual bait, feces and excrement will produce a large amount of toxic substances such as ammonia nitrogen and nitros nitrogen, which will seriously affect the normal ...

Claims

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Application Information

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IPC IPC(8): C02F3/34
CPCC02F3/341C02F3/348C02F2305/06
Inventor 王秀华张欢欢黄倢杨冰宋晓玲刘莉
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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