Blooming Tea is also known as art tea, special craft tea. It takes tea and edible flowers as raw material, through shaping, banding and other processes to make the appearance of different shapes. when brewing, they can open in water with different forms and shape scented tea. Blooming tea not only still have the function of tea, but the flower also has a good pharmacological action. Mainly function is beauty skin care, body slimming, detoxification and deodorization.
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First, the conditions of the fish pond Rainbow trout is cold water fish, the normal growth of water temperature is 1 °C -24 °C, the optimum water temperature is 14 °C -16 °C; requirements of water oxygen 5 mg / l or more; PH value of 7-8. Rainbow trout farms can be built wherever these requirements are met. It can be cultured in ponds and is more suitable for aquaculture, groundwater, reservoir bottom water and cold spring water aquaculture. The construction site requires a certain slope to facilitate drainage, and the water drop is conducive to natural oxygenation. Each aquarium area of ​​100-200 square meters, cement structure, rectangular, favorable feeding, management and control of fish diseases, and can make the water flow evenly around the pool, in order to meet the characteristics of rainbow trout hi reverse. If the fish pond can be built on the mountain, it is more ideal.
Second, artificial breeding rainbow trout broodstock generally mature 2-3 years old, spawning once a year, each spawning 1000-3000 tablets. The beginning of reproduction begins every year in December.
1. Progeny fish breeding broodstock requires bottoms grit, water depth 1.5 meters, flow of 0.05 flow (100 liters per second 5 liters). The stocking density is 1-3 tails per square meter, and the ratio of male to female is 1:1. Rainbow trout is afraid of light, and light control is less than 12 hours per day. In the annual cultivation, the feed formula changes 20-30% of the total animal feed with the gonadal development stage, and increases to 50%-60% before egg collection and after egg collection. The feed amount is 0.5% to 2.0% of body weight.
2. Egg-inoculated females use caudal fins to dig pits in slow-flowing shallow water to build nests, and their body color is darker, the vents are red and prominent, and the abdomen is large and soft. At this time, if there is a feeling of free egg, light The ooze out of the egg shows that the female has matured. Males have darker body color, rougher surface, and soft surrounding excretory holes. White sperm can be seen on the light pressure fish abdomen. Generally, water temperature starts to be collected at 1°C-11°C, and 5°C-9°C is the period of egg harvest. Extrusion method. Specific approach: One person catches the female with its head up and its abdomen down, aligned with the ovary. One person cleans the basin with his hands and gently presses the ovary in the direction of the genital hole. The eggs flow into the basin. Then, using the same method, male sperm were squeezed into the pot, stirred with feathers for 30 seconds, and the two were brought into contact with each other. Then, a small amount of fresh water was added. After a little stirring, the mixture was allowed to stand for 2 minutes, then a large amount of fresh water was added, and the mixture was allowed to stand for 4 hours. The fertilized egg can be poured into the dish for hatching, and the whole process must be shaded.
3. Incubation Method A 2004037 cubic centimeter tank was made of wood, cement or plastic. The size of the hatchery tray was 33331.6 cubic centimeters. The hatching trays for the eggs were stacked in a sink. The upper hatching tray covers an empty plate and presses a weight to prevent drifting. Shade in the hatchery. Incubation suitable water temperature 7 °C -13 °C, the optimum water temperature 8 °C -10 °C, water flow rate of 10-20 liters per minute. Note that the bad hatches should be removed promptly throughout the incubation process, and the eggs should be sterilized once a week for 30 minutes with 1% formalin or 2% saline to help increase the hatching rate.
Rainbow trout artificial breeding technology
Rainbow trout has a brown-red vertical pattern along its lateral line and is named after a rainbow. Rainbow trout has the characteristics of delicious meat, rich nutrition, less thorn meat, simple artificial breeding, etc. It has now become one of the top four freshwater aquaculture species promoted by the UN Food and Agriculture Organization of the United Nations, and is listed as a high-grade fish. Large areas of practice have proved that feeding in running water, annual output of fresh fish 3-5 million kilograms per acre, the economic benefits is extremely significant. Therefore, it is tempting to actively develop artificial breeding of rainbow trout. Huairou, Beijing and Gansu, Fujian and China have successfully farmed.