(a) Breeding 1. Sexual maturation and sexual cycle: The head of a raccoon dog is 2-3 years of age, and usually weighs more than 0.5 kg. The period from July to October was degraded to stage II, from November to early April, stage III, and from April to stage IV, the ovarian maturation coefficient reached a maximum of 23.7% between May and June. In this case, stage V was produced. The ovary begins to degenerate. 2. Male and female identification: During the reproductive season, the male head, pectoral and caudal peduncles have dense stalking stars at the dorsal and ventral rims. The first fins of the pectoral fins are hypertrophic and wavy. This feature will not disappear for the rest of the year. There is milky semen outflow. Except for the tail shank of females, there was almost no star-chasing in the rest; the first fins of the pectoral fins were thin and straight; the abdomen was obviously enlarged and soft; the vents were slightly prominent. 3. Selection and rearing of broodstock: Broodstock can be a type of pond culture, but it is best to choose from wild lake populations and weigh more than 0.5 kg. The broodstock can be polycultured or monocultured, and is usually polycultured in brood, oyster, and grass brood fish ponds. When broodstock is raised, the area of ​​broodstock breeding pond is 1-3 mu, the water depth is 1.2-1.5 meters, and the stocking density is 200-300 tails/mu. Feeding head lice should be based on green feed, but the amount of feed should be increased by 2-3% of the fish weight during the breeding season and postpartum, in order to facilitate gonad development or restore postpartum constitution. Every year in March near the spawning period, the water temperature reaches above 18-20°C, and the male and female broodstock should be divided in order to avoid unnecessary loss caused by sporadic self-production. (B) Oxygen production hatching 1. Natural spawning: After the gonadal glands are mature and mature, when the water temperature rises above 20°C, select sunny and windless weather, and combine the male and female broodstock with the pool, according to the ratio of male to female 1:1～2. Matching groups, given appropriate water stimulation and timely deployment of fish nests, that can naturally spawn and fertilized. 2. Artificial oxytocin production: Currently, artificial oxytocin production methods are commonly used in production so that broodstock can concentrate on spawning. Pituitary glands, chorionic hormones, and release hormone analogues have oxytocinic effects. The oxytocin dose is 6-8 mg/kg in the pituitary gland; the chorionic hormone is 1000-1500 IU/kg; and the hormone analogue is 60-100 μg/kg. Half of the dose of male fish is generally injected once. The best injection time is from 6 to 7 pm, with spawning around the dawn of the following day. The water temperature is 24-26°C and the effect time is 8-9 hours. 3. Incubation: After the broodstock is injected with oxytocculant, it can be hatched with a fry cultivation pond, and 0.25-2.5 million fish eggs can be released per acre. It is more common to place broodstock into the spawning pond or in the hatchery ring, lay out the fish nest, and stimulate it with microfluidic water to allow it to spawn. The eggs of the gurnard head are viscous eggs, but they have poor viscidity. Part of the fertilized eggs may be scattered at the bottom of the pool. Some fertilized eggs may adhere to the wall of the spawning pond or the wall of the hatching ring. Therefore, the artificial insemination and de-bonding hatching is better than natural production. Oviposition and hatching of eggs are effective. The method of artificial insemination and de-sticking of boletegrass is similar to that of squid. Since the proportion of eggs is larger after de-bonding, the water flow during hatching should be appropriately larger to prevent the eggs from sinking and suffocating.
Cassia, also known as "pupil", cassia contains a variety of vitamins and rich amino acids, fat, carbohydrates, etc., and its health care functions are increasingly valued by people. Cassia has clear anger, rheumatism, kidney eyesight and other functions, often drink Cassia Tea, can make blood pressure normal, stool smooth, the old eye does not flower. Clinical experiments show that drinking Cassia tea can clear eyesight, prevent blurred vision, lower blood pressure, lowering blood pressure, reduce cholesterol, etc., for the prevention and treatment of coronary heart disease, hypertension has a good effect; and Cassia is rich in vitamin A and zinc, Prevention and treatment of night blindness and zinc deficiency in children. In addition, Cassia tea laxative function can also solve the gastrointestinal and constipation problems of modern people, you can treat dry stool, to help smooth bowel movement. Cassia tea bubble method is very simple, as long as 15 to 20 grams of cassia seed with hot boiled water can also be based on personal preferences into the amount of sugar, when the tea drink, several times a day, if coupled with medlar and chrysanthemum , The effect is better. However, cassia seed slightly cold, diarrhea, stomach pain, should not drink this tea.
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