Black Tea belongs to full-fermented tea, which is a kind of tea refined by a series of technological processes, such as withering, rolling (cutting), fermentation and drying, with suitable new tooth leaves of tea trees as raw materials. Black tea gets its name from the soups and red undersides of its dried tea leaves.
The main effect of black tea is: refreshing fatigue, quenching thirst and relieving heat, diuresis, anti-inflammatory bactericidal, detoxification, strong bones, anti-aging, stomach, vasodilator and so on.
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First, commodity meat duck breeding
1. Young duck breeding:
(1) 4-5 weeks old Lesser Muscovy duck is called young Muscovy duck, brooding is the key, artificial temperature or temperature is generally used, the ambient temperature requirements are as follows: 1 week old 27 °C, 2 weeks old 24 °C, 3 weeks Age 22°C, 4 weeks old 20°C, 5 weeks old 18°C-20°C, specific temperature should be adjusted according to the behavior and distribution of Muscovy ducks.
(2) The feed requires the preparation (or purchase) of full-priced granule feed. The particle diameter of 0-3 weeks old is not more than 1.5 mm, the metabolic energy is 2900-3000 kcal/kg, and the crude protein is 19.5%-22%; 4 After weeks of age, the full feed pellet diameter is 1.5 mm, or 3.5-4 mm, the metabolic energy is 2800-3000 kcal/kg, and the crude protein is 17%-19%.
(3) The hatched ducklings should be eaten after drinking water first, and the time should not exceed 18-24 hours. The drinking water should be treated with 0.1% potassium permanganate water or drinking water for 100 days and then drinking water for 1-2 days. Then add appropriate amount of water in drinking water. Supplements with drugs such as norfloxacin or doxycycline to enhance physical fitness and prevent disease. Open the food by placing it on a platter or on a sackcloth to allow it to feed freely.
(4) Young mussel ducks, whether on the ground or on the web, are made of straw or linen mats, and the grass and linen are replaced. The duck house should be adequately lighted and artificially illuminated at night and fully natural lighted after 4 weeks of age.
2. Feeding in the duck period: refers to 4-5 weeks old to 10 weeks old Muscovy ducks, this stage has enhanced digestive ability, large feed intake, resistance to crude feed, in addition to increasing the daily full amount of feed, it should also add green grass, green vegetables and other green Feed, fattening to 10 weeks of age when the public Muscovy duck weight up to 3.5-4 kg, female Muscovy Duck 1.5-2 kg can be listed. Management should be separated from the male and female and group rearing, each group of 100-300 is appropriate, 5-8 per square can be raised, due to moulting at this stage, prone to defects, should pay attention to broken and shade. Muscovy ducks are said to have dry ducks, and a large group of breeders can use only a small amount of man-made pools or basins for drinking. However, they must pay attention to drinking water to cleanliness and can not stop drinking water.
Second, reserve species of duck breeding
1. 9-24 weeks old Muscovy ducks should be reserved. Large and strong male and female Muscovy ducks should be selected. The ratio of male to female parent must be selected as 1: 4-5. After selection, all kinds of ducks should be restricted to feed and reduce feed nutrient levels. Weight control. The weight of the female muscovy duck before laying can be controlled between 2.3-2.8 kg, while that of the same-sex muscovy duck is between 4-5 kg, the metabolic energy of the diet is 2700-2800 kcal/kg, and the crude protein is 14%-16%. The average daily feed of each duck is 100-150 grams. Generally, 25-50 grams of green material can be fed every day. When the production is started, the crude protein and metabolic energy levels of the diet can be appropriately increased to gradually transition to the nutrition during the production period. Level, to ensure a higher egg production period.
2. Manage the duck house to be ventilated, raise 3 eggs per square meter, prepare enough egg boxes, pad the rice straw to reduce broken eggs, and raise a large group to surround the corner of the duck house. Put the straw directly on the ground and become a flat ground. "Egg Nest" for egg production. Note that Muscovy ducklings are the most effective way to convert the ducklings into ducklings. Each fenced house stays for two days and nights. The transfer must be done in the evening.
3. Pay attention to the cleanliness of duck houses and disease prevention. The litter is generally changed once a week. Don't forget to sprinkle lime powder on the ground when paving new litter. Pay attention to the dryness, ventilation, and disinfection of duck houses. Large groups of aquaculture, especially Muscovy duck, should pay attention to the regular inoculation of Muscovy duck parvovirus disease, duck gizzards, viral ducklings and other vaccines. All localities should, as appropriate, formulate immunization procedures and disease prevention measures in accordance with the specific epidemics of the epidemic.
Muscovy duck breeding technology experience
Muscovy is a bird skeleton, wild geese, genus duck, also known as the head of the duck, commonly known as "red duck", "wood duck", "musk duck", is now spread in the society "meat" is the Muscovy duck. The domesticated Muscovy duck body is more powerful than the domestic duck, the body length and width are slightly flat, and is horizontal with the ground. There are red or red-black skin tumors around the base of the head and around the eyes. The duck skin is more developed than the female duck. Duck feather color is pure black, pure white and black and white variegated, domestic domestic duck (wooden duck) mostly pure black feather, France imported Barbary Muscovy duck mostly pure white feather. Muscovy ducks differ greatly in sex, body size and body weight are significantly different. Muscovy ducks typically have 30-32 weeks of age in their mature maturing ducks, 28-30 weeks of age in female ducks, 80-120 eggs per year, and egg weight of 70-80 grams. Incubation period 35 days. The adult public Muscovy duck weighs 3-5 kilograms, the female Muscovy duck 1.8-2.25 kilograms, the Muscovy duck grows fast, and the black plumage Muscovy duck has an average body weight of 2 kilograms for 70 days. Muscovy duck resistant to crude food, less material consumption, high feed remuneration, feed meat ratio of 2.7-3:1, French white duck Muscovy duck production performance, Muscovy duck lean meat, black feather Muscovy meat taste delicious, with a special fragrance , Very wild bird flavor, practice has proved that black plumage Muscovy duck is more welcomed by the market. Muscovy ducks produce more fatty liver. Muscovy ducks can be raised in water, raised in land, raised in captivity, and bred, with simple production equipment and convenient feeding and management. After the brooding period, grassland grazing or local grazing is carried out, and most of the grazing is carried out in combination with grazing and feeding. Muscovy duck adaptability, able to endure high temperature; Muscovy duck disease less survival rate, the general brooding survival rate of 95% -98%. The Muscovy duck breeding technology experience is introduced as follows for reference.