From November to December, females with a significant growth rate were selected and weighed between 40 and 50/kg. They were placed in pro-Bob cultivation ponds for specialized breeding, and stocking densities were 10 to 11 per cage. Each group of 8 cages, each stocking a male abalone, has the effect of promoting female gonad development. Change the amount of water 5 to 6 times a day, and regularly sprinkling 10 grams of anti-virus medicine (3 parts of Sanhuang, 1.5 parts of Guanzhong, 2 parts of Isatidis, and 3.5 parts of other parts) and immerse for 4 hours. Parents to feed fresh Jiang Lei, Shi Jie, conditional tide every month, you can feed fresh kelp once, in order to ensure the nutrition of the pro-Bao comprehensive, thereby promoting the well-developed gonadal. After 4 to 5 months of intensive cultivation, the sexually mature pro-Bao can generally be selected at the end of April of the following year.
Identification of mature pro-Baud: female, full gonads, obvious separation of gonad and visceral mass, clear visible ovum, color purple or dark red. In males, the gonads and visceral masses are distinct and plump, with a milky white or yellowish milky color.
Second, nursery preparation before the spring nursery to prepare 30 days in advance nursery work, the fall nursery 15 days in advance to prepare.
1. Culture of benthic diatoms and ovoid-shaped algae: Put a thin film (1m 1m) of attached base material into a algae pool (6m in size, 3m in 1m in size), and then enter fresh filtered seawater. Immersion film tip is appropriate. Apply nitrogen:phosphorus:silicon:iron 10:1:1:0.1 and sprinkle EM bacteria 20 g/m3, cultivate in still water, and start running water on the 3rd day. There are generally oval-shaped algae and boat type on the attachment base for 10 to 15 days. Algae, Oriental Bay, Streptophyta, Ammonium and so on. 400 eggs can be used to filter ovoid and algae, and the algae is poured into the prepared algae pond for secondary purification and cultivation. Fertilization and EM bacteria are used. After 10 days, the ovoid or algae in the algae pool is The dominant population can now be expanded, re-cultivated or entered production.
2. Cultivation of algae in nursery pond The above-mentioned ovoid or algae was filtered through a 400-mesh sieve and inserted into a nursery pond (6m 3m 1m). Nitrogen:phosphorus:silicon:iron was applied at 5:0.5. : 0.5:0.1, after 3 to 5 days, algae color is visible on the edge of the attachment base, and oxytocin can be produced at this time.
Third, oxytocin and fertilization and cloth
1. Induction spawning 9 to 10 points from the pro-batch pool to select mature pro-Bao, regardless of the number of female abalone, male abalone 15 to 20 can be. The selected pro-Bao was first placed in a small concrete tank of 1.1-meter-one-meter-meter and soaked with 5 g/m3 povidone iodine for 1 hour to kill pathogenic bacteria that may be present on the pro-bodily surface. Then the pro-Bao was transferred to nursery pond (6m, 3m, 1m) for raising.
From 16 to 17 o'clock, start oxytocin production. Specific steps: the pro-abdominal dry 1 to 1.5 hours, male and female separate, into the urine production barrels, males first spawning 6 production, the rest of the temporary support, every 3 hours into a male abalone. At intervals of 2 hours, filtered seawater that has been previously sterilized with ultraviolet radiation (220 volts, 40 watts, 4 UV lamps irradiating 400 litres of seawater for 6 hours) was used until spawning, and natural seawater was filtered again. Usually at 22 to 23 o'clock in the evening, males produce sperm first. At about the same time, female abalones begin to lay eggs. If females do not lay eggs at this time, they can add a little semen to promote spawning. In addition, some production also uses strong light irradiation for oxytocin production. Specific steps: Place a 100-watt electric lamp 5 to 10 cm beside the spatula barrel. There is a strong light and warming stimulant effect. The oxytocin effect is better, but it should be noted that the irradiation time can not be too long, so as not to damage the pro-Bau. When the water temperature in the nursery is high in the fall, the temperature should be reduced.
2. Fertilization and brooding Before each fertilization, check the vigor of the sperm. When fertilized, do not add too much semen. Observe the polar body after 3 to 5 minutes. There are 4 to 5 spermatozoa around the fertilized egg. If it is too much, use a 300-mesh sieve to gently flush the semen; estimate fertilization. rate. When the fertilized egg develops to a 2-cell stage, the fertilized eggs are collected and the fertilized eggs are directly placed into the nursery pool, and the egg density is approximately 30,000 to 40,000 per square meter. When the water temperature is 23～24°C, tandem larvae can be hatched within 8 to 9 hours and enter planktonic stage. At night, the plankton is observed with a flashlight. It is advisable to estimate the density and the density from 30,000 to 35,000 per square meter. .
Fourth, the daily management of water temperature 23 ~ 24 °C, face plate larvae began to attach 4 to 5 days, metamorphosed into pupa larvae, feeding on benthic diatoms attached to the base - oval-shaped algae or boat-type algae, then change the water 10 cm , start running water, daily flow of water 1 to 1.5 times, light intensity is controlled at 700 to 1200 lux. Every morning, 7 to 8 points, 10 cm of water is replaced. After 15 to 20 days of cultivation, the rear visceral mass of the juvenile abalone is obvious, and the body color changes to pale pink or white and transparent, the growth rate is 0.05 to 0.07 mm/day, the shell length is 1.0 to 1.3 mm, and the shell length is 22 to 25 days. From 1.7 to 2.1 mm, the first breathing hole appeared. At this time, the growth rate of the juvenile abalone was 0.162 to 0.217 mm/day, which was obviously improved and the food intake was increased. The growth of the algae on the attachment base should be observed to ensure that there is no fresh spoilage. The benthic diatoms have insufficient algae and can be used to feed algae. Nitrogen, phosphorus, silicon and iron are applied at a ratio of 3:0.5:0.5:0.1. If there are too many corrupt algae on the substrate, increase the amount of water to replace the algae. Algae discharge or inverted pool treatment. In order to prevent diseases, regular osmoticin 0.5 g/m3, white inflammation net 0.5 g/m3, povidone iodine 0.3 g/m3, and beneficial microorganisms such as bacillus, nitrobacteria, etc. may be regularly splashed. Water temperature 23 ~ 26 °C, after 35 days of incubation, the length of the young Bao shell 3.5 ~ 4.5 mm, then brush board, brush plate density control in 3000 ~ 3500 / cubic meters, into the middle of the cultivation.
Spray-drying technique is a drying process of obtaining powder products by the mean of dispersing raw materials into fog droplet in a nebulizer and let it contact with hot air (or other gases) directly. Vaporizing the moisture in materials generally can be classified into constant speed drying phase and decelerating drying phase, and every phase remains a short time for the fog droplet is relatively small.
The following is the producing process of Spray-drying goji powder. The first to press goji fresh fuit or dried fruit into goji emulsion, and then drop the materials into the bactericidal can for pre-sterilization. The second, transport the materials into the nebulizer, on the top of the desiccator, to atomize the materials into fog droplet, and at the same time, transport the fresh air into the top of the desiccator through the filter, air heater and air distributor by the air-blower to contact, mixing with the fog droplet, and let them to take place heat and mass transfer, which is also known as drying. At last, the dried goji powder will be brought out from the bottom of the desiccator, and the waste gas with dust will be exhausted into the atmosphere through the cyclone by the induced draft fan.
Appearance
1) Color: Orange-yellow or orange color powder.
2)Taste & Odor: No Peculiar Smells.
3) Impurity: No visible foreign impurities
Physics & Chemical Specification
1) Moisture(%): ≤8.0
2) Total Sugar(% As glucose): ≥30.0
Microorganism Specification
1) TPC (CFU/g): ≤30000
2) Mould (CFU/g): ≤50
3) Coliform (CFU/g): ≤40
4) Staphylococcus Aureus (CFU/g): ND
5) Salmonella (CFU/g): ND
6) Shigella (CFU/g) (CFU/g): ND
Country of Origin
ZHONGNING, NINGXIA, CHINA
Package
5kg in aseptic bag, and two bags per paper carton.
Storage
Should be stored at room temperature in clean, cool, dry warehouse, prevent sun, rain, and not be stored with corrosive, toxic, and smelly item. With these conditions, product shelf life is 18 months. (suggestion: 5-8℃).
Spray-Drying Goji Berry Powder
Ningxia Qixiang Biologic Foodstuff Co., Ltd. , http://www.qxgoji.com