Bao's bait cultivation

In the whole process of abalone breeding, Bao's bait resources are one of the keys to the success or failure of abalone breeding. Bao's bait is divided into two major categories: one is the bait used in seed production, mainly benthic diatoms and photosynthetic bacteria; the other is the artificial compound feed and natural macro algae in the process of bait farming Wait. This issue will introduce Bao’s bait cultivation and use methods. The benthic diatom is the basic bait of the larval and hatchery of the abalone. The photosynthetic bacteria serve as an excellent supplementary feed and water purification agent. The quality and culture level not only affect the collection rate of the planktonic larvae and the metamorphosis rate of the larvae. It also affects the breeding rate of young abalone, which directly affects the economic efficiency of abalone breeding. Therefore, the bait culture technology is also a key part of the aquaculture process of abalone and should attract the attention of the farmers. First, the benthic diatom bait cultivation 1. Inoculation time; benthic diatom culture time is too long or too short are not conducive to the collection and adhesion metamorphosis of planktonic larvae. The long time of cultivation of benthic diatoms can make the bait density high, but at the same time, it is also easy to age, which is not conducive to the collection of planktonic larvae. If the time of benthic diatom culture is too short, its density cannot meet the growth and development of carp larvae and young abalone, which will lead to a decrease in production and seriously affect the growth rate. In general, the start time of benthic diatom inoculation culture should be 1 month to 2.5 months before harvesting. According to the specific circumstances of flexible control. 2. Picking the seedling plate The picking plate is purchased as a special polyethylene corrugated plate. Seedlings and picking equipment are washed, degreasing, and disinfected before they are put into benthic diatoms and algae. The solution can be soaked in 0.05% to 0.1% sodium hydroxide solution for 1 to 2 days, and then washed repeatedly with a detergent, and soaked and disinfected with a 5 mg/l sodium hypochlorite. 3. Selection of algae species for benthic diatoms The choice of algae species in the exponential growth stage is good, and the selected algae species should be pure breeds, which can be cultivated by themselves or through the following species. Methods To obtain algae species: (1) Natural growth method; Incorporation of seawater, increase of water exchange in the pool, application of nutrient salts, and cultivation of natural algae species. (2) Brushing method The adhered diatoms attached to the wall of the pool, the gutters along the drain, the seashore reef, and the net cages in the sea area may be artificially wiped with foam, etc., as algae, and cultivated in the same manner as in (1). (3) Collecting in the sea area; preliminarily suspending the sources of the natural sea area back to the pool by hanging polyethylene nets, plastics, etc. on floating rafts in the sea, and then cultivating it with the method (1). 4. Inoculate the seedling plate 20 to 40 pieces as a group of pool bottom, the water injection did not pass the upper seedling plate. The algae seed liquid was evenly spilled in the pool. After 24 hours, the seedling plate was inverted and inoculated on the other side. Then, the seedling plate was erected and fertilized for 24 hours. 5. Fertilizer should be supplemented with a certain amount of nutrient after each change of water to promote the proliferation of diatoms. The formula is: applying sodium nitrate 10 mg to 25 mg + potassium dihydrogen phosphate 1 mg to 2.5 mg + sodium silicate 1 mg + iron citrate 0.1 mg + vitamin B 120.25 mg per 1000 ml of seawater. 6. Management 1) It is better to keep the water temperature at about 10°C to 18°C. (2) Change the water 1 to 2 times a week and add nutrients in time. (3) The micro-aeration culture is conducive to the propagation of diatoms and the salvage bubbles on the water surface are salvaged in time. (4) The lighting control is better at 1500 lux. (5) Kill copepods in time. Second, the cultivation of photosynthetic bacteria Photosynthetic bacteria can use under the condition of oxygen, hydrogen sulfide, ammonia nitrogen and other organic substances in the water as its nutrient source for growth and reproduction, can play a role in the decomposition of harmful substances in the pool, purify water quality. Photosynthetic bacteria as a bait resource is also very rich in nutrients, and it is a high-quality supplementary feed for Bao Miao. The method for cultivating photosynthetic bacteria is to use the soup remaining in the processed shellfish, fermented, boiled, filtered and used after adding potassium hydrogen phosphate 0.05%, sodium acetate 0.2%, ammonium chloride 0.2%, and protein moon east 0.2% With a small amount of B vitamins, this solution can be used as a culture solution for photosynthetic bacteria. A small amount of photosynthetic bacteria can be purchased and put into it, which can reach a certain density after a period of time. When photosynthetic bacteria are used as bait, the feeding density is generally 1108 cells/ml water body to 2108 cells/ml water body.

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Appearance

1) Color: Red or deep red. 
2)Taste & Odor: Fresh Goji Berry Juice concentrate taste and smell, no peculiar smell. 
3) Histomorphology: Turbid liquid with pulp, allowing the pulp precipitation phenomenon after completely standing.
4) Impurity: No visible foreign impurities 


Physics & Chemical Specification

1) Brix(%): ≥24.0 
2) Total Acid(g/100mLas Citric Acid): ≥0.8 
3) pH: 3.5-4.1 


Microorganism  Specification
1) TPC (CFU/mL): ≤100 
2) Yeast (CFU/mL): ≤100 
3) Mould (CFU/mL): ≤10  
4) Coliform (CFU/mL): ≤10 


Additive

NO


Country of Origin

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Package

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Storage

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