Ussuri is a wild economic animal with a high economic value. It is famous for its rich plush and good insulation properties. Pork is a rare and nutritious game food; gallbladder and testis are valuable Chinese herbal medicines; and wolfberry fat is a raw material for advanced cosmetics. It can be said that the body is a treasure and its use is very extensive. In recent years, due to people's killing, coupled with their low fertility in the wild, the number of earthworms is on the verge of extinction. Therefore, the artificial breeding of earthworms is actively carried out, which is conducive to the protection of wildlife resources and to the enrichment of the people. The main points of breeding techniques are described below.
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1. Selection of quality traits. The quality traits (such as coat color, etc.) of quail should be selected on the basis of individual phenotype. The color tends to be yellow and red, and the brewing is more beautiful.
2. The choice of quantitative traits. Quantitative traits of quail (such as body length requirement between 65 cm and 80 cm, hair length of about 6 cm, plush density for the rotation of the body gap is better, the nipple in more than 4 pairs), so that in the breeding of quail Obvious results.
3. The method chosen. For young nymphs, according to the birth date of each litter, the number of larvae development (the body weight can be weighed and the length of the population compared to the average body weight, body length) choose to be born early (male to be born before mid-April, females to Born at the beginning of May), normal development, early blinking, and clear lineage retention.
Second, the good feed off
1. To feed cooked food. Cornmeal 50%, bran 20%, bean flour 10%, fishmeal (small fish, shrimp or slaughtered leftovers can be substituted) 15%, the above types of mix made into a paste, then add 5% of the vegetables, now produced Now feed about 400-700 grams per day.
2. Pregnancy and farrowing stages. At this time, it is necessary to appropriately increase animal feeds with high protein content. Crude protein can account for 25% to 30% of the total energy of the diet at this time.
Third, the good feeding and management Guanyin feeding management period (from early May to late June) should be provided to the adult diet, feeding 2 times a day, bred (July to October) dietary animal feed accounted for 10 %~15%, 300 grams per feeding, 2 times daily, to ensure adequate drinking water.
IV. Rearing and management of adult clams
1. Prepare breeding period. In the early period of breeding (October-November), the principle of dietary supplementation is that the proportion of animal feed should not be lower than 10%, and fat-containing feedstuffs can be appropriately increased. Feeding should be carried out once a day in November, and the body weight should be 5-7. Kilograms, 6 to 8 kilograms for males; prepare for the late period (December to January of the following year) to balance and adjust the body condition, over-fertilize the crop, and lose weight is to halve the diet.
2. Breeding period (from early March to early March). To provide nutritious diets for public funds, part of the eggs can be fed to animal feeds, and the estrus status of the mothers can be checked every day or every two days to facilitate timely breeding. 30 minutes before and after feeding.
3. Feeding and lactation period (from early April to early May). Safeguarding live calving, promoting the development of Aberdeen, ensuring that the mother's bedding is adequately milky, supplementing milk or soy milk with dietary supplements, fine-grained feed processing, thinning mixed feeds, satisfying supply, and adequate drinking water every day.
Fifth, disease prevention and treatment are the main methods, supplemented by treatment, and prevention is more important than treatment. This is the most effective measure to make rickets less sick. In general, crickets have strong resistance to disease. During the breeding period, regular cleaning and disinfection are sufficient. For several common diseases, such as: the occurrence of a cold, the treatment is oral oxytetracycline 80,000 international units, or according to the amount of people 1/4 ~ l/3 oral compound sulfamethoxazole. Gastroenteritis (diarrhea) A small amount of oxytetracycline and furazolidone (at a dose of 30 mg/kg body weight) was added to the diet and fed twice daily.
1. Selection of quality traits. The quality traits (such as coat color, etc.) of quail should be selected on the basis of individual phenotype. The color tends to be yellow and red, and the brewing is more beautiful.
2. The choice of quantitative traits. Quantitative traits of quail (such as body length requirement between 65 cm and 80 cm, hair length of about 6 cm, plush density for the rotation of the body gap is better, the nipple in more than 4 pairs), so that in the breeding of quail Obvious results.
3. The method chosen. For young nymphs, according to the birth date of each litter, the number of larvae development (the body weight can be weighed and the length of the population compared to the average body weight, body length) choose to be born early (male to be born before mid-April, females to Born at the beginning of May), normal development, early blinking, and clear lineage retention.
Second, the good feed off
1. To feed cooked food. Cornmeal 50%, bran 20%, bean flour 10%, fishmeal (small fish, shrimp or slaughtered leftovers can be substituted) 15%, the above types of mix made into a paste, then add 5% of the vegetables, now produced Now feed about 400-700 grams per day.
2. Pregnancy and farrowing stages. At this time, it is necessary to appropriately increase animal feeds with high protein content. Crude protein can account for 25% to 30% of the total energy of the diet at this time.
Third, the good feeding and management Guanyin feeding management period (from early May to late June) should be provided to the adult diet, feeding 2 times a day, bred (July to October) dietary animal feed accounted for 10 %~15%, 300 grams per feeding, 2 times daily, to ensure adequate drinking water.
IV. Rearing and management of adult clams
1. Prepare breeding period. In the early period of breeding (October-November), the principle of dietary supplementation is that the proportion of animal feed should not be lower than 10%, and fat-containing feedstuffs can be appropriately increased. Feeding should be carried out once a day in November, and the body weight should be 5-7. Kilograms, 6 to 8 kilograms for males; prepare for the late period (December to January of the following year) to balance and adjust the body condition, over-fertilize the crop, and lose weight is to halve the diet.
2. Breeding period (from early March to early March). To provide nutritious diets for public funds, part of the eggs can be fed to animal feeds, and the estrus status of the mothers can be checked every day or every two days to facilitate timely breeding. 30 minutes before and after feeding.
3. Feeding and lactation period (from early April to early May). Safeguarding live calving, promoting the development of Aberdeen, ensuring that the mother's bedding is adequately milky, supplementing milk or soy milk with dietary supplements, fine-grained feed processing, thinning mixed feeds, satisfying supply, and adequate drinking water every day.
Fifth, disease prevention and treatment are the main methods, supplemented by treatment, and prevention is more important than treatment. This is the most effective measure to make rickets less sick. In general, crickets have strong resistance to disease. During the breeding period, regular cleaning and disinfection are sufficient. For several common diseases, such as: the occurrence of a cold, the treatment is oral oxytetracycline 80,000 international units, or according to the amount of people 1/4 ~ l/3 oral compound sulfamethoxazole. Gastroenteritis (diarrhea) A small amount of oxytetracycline and furazolidone (at a dose of 30 mg/kg body weight) was added to the diet and fed twice daily.
An active substance is the main active ingredient in a drug. Take a simple aspirin for example. Acetyl salicylic acid is synthesized through chemical process and purified to a specified purity. The synthesis of acetyl salicylic acid is made by adding various excipients, such as fillers, adhesives, disintegrating agents, etc., and then pressing it into tablets. The production of apis is generally either pure chemical synthesis, biological fermentation, or semi-synthesis, with biological fermentation followed by extraction followed by synthesis. Not all pharmaceutical enterprises make API by themselves, and many manufacturers do not have the scale to produce API. Even if there is large-scale production, the cost of production may be much higher than that of procurement. Therefore, most manufacturers buy bulk drugs, and then make preparations, so that the production of drugs can be completed without a very large scale. At present, China and India have become the two largest API producers in the world. Many European and American pharmaceutical companies, even some of their own original drugs, will give up the production of API as the patent expires and the market matures, and turn to purchase apis from China and India,API production generally go through laboratory, generated through laboratory bottle container canister, taking after successful, pilot magnification, which is to enlarge the quantity of the production, then no problem tends to be faced with a lot of small scale experiment, a very simple example, the heating process, due to the relatively small amount in the laboratory, uneven heating cases is less, But if it is scaled up to a few tons of pot, at this time the heating may be not hot in this place, where the paste pot, at this time you need to stir, but the speed of mixing is appropriate, this process needs to calculate or grope. Finally from the pilot test, and then to the formal production, the volume of further amplification, and will face a lot of new problems. Therefore, although some drugs are generic, the research and development of the whole process from small test, pilot test to the final mass production is indispensable, so even generic drugs have very high research and development costs.
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