First, we must organize and coordinate the diet properly. Diet composition is diversified and palatability is good. Perennial supply of high-quality green roughage, especially for legumes. Roughage accounts for 1-1.5% of body weight. Choose digestible, fermented feed. Seed-type barley is more easily digested, followed by maize sorghum, and the green coarse material is rich in nutrients and easy to ferment. Feed diets must have a certain volume and nutrient concentration, both crude material and a certain amount of fine material. At the same time there is a certain degree of diarrhea, and to improve the feed processing modulation technology, it is best to use a fully mixed diet. Second, the appropriate method of feeding. To regular quantitative, less feeding Tim. Change the feed gradually and the transition period should be around 10 days. The feed should be sieved to prevent foreign matter from entering the rumen. The number of feedings should be fixed. It is best to feed three times a day. Concentrates and coarse materials should be mixed with a full-mixer and then fed. Ensure drinking water and make salt bricks. About 100 liters of water per cow per day. Third, regular exercise and brushing. Must ensure that there are 2-3 hours of exercise and 2-3 brushstrokes a day. Dry brush in winter and summer scrub are the main factors, which not only help skin hygiene, but also prevent heat and heat, which is beneficial to the increase of milk production. Fourth, we must milk on time. Three milkings are performed every morning, evening and evening. Milking with a milking machine can improve milk quality. Wash the breasts with warm water before milking. Disinfect the nipples with iodine after milking to prevent mastitis.
Chinese herbal medicine chemistry refers to the science of using modern chemical theories and methods to study the chemical composition of Chinese herbal medicine. The object of Chinese herbal medicine chemistry research is the chemical composition of Chinese herbal medicine. The chemical composition of Chinese herbal medicine is very complex, usually sugar, Amino Acid, protein, oil, wax , enzymes, pigments, vitamins, organic acids, tannins, inorganic salts, volatile oils, alkaloids, glycosides, etc. Every Chinese herbal medicine may contain multiple ingredients. Among these ingredients, some of them have obvious biological activity and play a medical role, and are often called active ingredients, such as alkaloids, glycosides, volatile oils, amino acids, etc. The reason why Chinese herbal medicine has medical effects is mainly due to the active ingredients it contains. In addition to many active ingredients of Chinese herbal medicines that have been studied in the past and have been widely used, such as berberine (berberine), which is Antibacterial and anti-inflammatory in Coptis chinensis, ephedrine, which is antiasthmatic in Ephedra, and reserpentine, an antihypertensive ingredient in Rauwolfia, In recent years, more active ingredients of Chinese herbal medicines have been discovered one after another at home and abroad, especially in terms of biological active ingredients for anti-tumor, treatment of cardiovascular diseases and chronic bronchitis. Other ingredients are commonly found in Chinese herbal medicine, but usually have no biological activity and no medical effect, and are called "ineffective ingredients", such as sugars, proteins, pigments, resins, inorganic salts, etc.
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