1. Increase insulation and cold-proof measures
A plastic greenhouse can be built in connection with the duck shelter. This is an important and practical measure for keeping warm and protecting against cold. If the duck house has a thick insulating layer, good sealing performance, a large lighting area in the plastic greenhouse, and a timely combination of daily coverage and uncovering the grasshopper, even in the cold January, when the outdoor temperature reaches -10 °C at night, the duck house and The temperature inside the plastic greenhouse can still be maintained above 10°C. This creates a more suitable temperature environment for the high yield of ducks in winter. The construction method for plastic greenhouses is basically the same as the method for building greenhouses. The plastic greenhouse and the duck house should be closely connected, and the interior should be open, which is conducive to feeding ducks, drinking water and exercise. The area of ​​plastic greenhouses should be more than two-thirds of the area of ​​ducks. In the plastic shed, a sink is located on the south side, and the trough is set next to it. The rest is the sports ground. As plastic greenhouses and duck houses are only well sealed, they can have good insulation effect, which will cause certain difficulties for the ducks to provide fresh air. Therefore, you must open doors, windows, and vents at noon every few hours to drain all the dirty gas in your home. After catching the ducks before the evening, all doors and windows must be closed.
2. Scientifically formulated diet
High-yield ducks in winter must be prepared in accordance with high protein, high energy standards. The specific standards are: crude protein 18%, energy 11.76 ~ 12.18 MJ / kg, methionine 0.4%, lysine 0.9%, effective calcium 2.5%, available phosphorus 0.6%, duck and duck with a large number of multidimensional and trace elements. For a long time, there are only a few manufacturers that produce duck and duck feed. Most duck farmers use duck feed to feed ducks. This is an important factor that restricts the high and stable yield and economic efficiency of ducks. Therefore, when formulating duck and duck feed, it must be rationally formulated according to the above-mentioned nutritional standards. Feed ingredients need to be of high quality and variety in order to meet the needs of ducks for various nutrients.
3. Appropriately increase lighting time
The winter nights are long and short, and the natural lighting time alone can not meet the demand of high-production laying ducks. It is necessary to artificially increase the lighting time. It is better to artificially increase the illumination to 60 watt fluorescent lamps. The lamp is 2 meters from the ground and 5 watts per square meter (including the area inside the plastic greenhouse). The specific increase in lighting time is from the evening to 10 o'clock in the evening and from 6 o'clock in the morning to dawn. It is not advisable to increase the light of the duck population for a long period of time. It is advisable to increase the daylight by more than half an hour compared with the natural light. Gradually the transition to evening light at 10:00 pm, the time for increasing the light in the morning may not change. If you increase the light too quickly, it is easy to cause the duck to recoil. When a large group of ducks are extinguished when the light with increasing light is extinguished, some lights with a low light level must be left unobstructed to allow the ducks and ducks to walk and drink water in order to avoid causing frightening groups and causing stress and reduce egg production.
4. Pay attention to exercise
High-yielding ducks in winter only rely on a small amount of exercise in the plastic canopy of the duck house. It is not enough to build a playground outside the plastic duck can that is more than twice the size of the duck house. When the weather is warm, ducks can be kept outside. Sports field activities. Ducks are waterfowl animals, especially like water, ducks can only play its full function after entering the water. Ducks drill in the water and are particularly active. Ducks and ducks also love to be clean and have slight pollution on their bodies. They must wash them clean in the water. The duck hair is bright and fluffy after washing. The insulation is better. Ducks rarely get sick and their production performance is strong. Artificial pool is because of the extraction of groundwater, compared with the natural rivers and ponds have the following advantages: First, no pollution, good water quality; Second, cool in winter and summer, suitable for long-term high-yield ducks; Third, water and drainage are completely controlled by the artificial, water level stable.
5. To prevent duck diseases
The low outside temperature in winter, although not conducive to the spread of disease, is more suitable for the breeding of pathogens in the microclimate created artificially in duck houses and plastic greenhouses. To this end, we must pay attention to doing a good job in environmental sanitation and adopting regular disinfection. While washing sinks and troughs on a daily basis, we must also attach importance to regular anti-disease work. The prevalence of winter ducks is mainly colds and diarrhoea. At least one full course (2 to 3 days) of antibiotics and other drugs are used each month to ensure the health of the duck population and improve the laying performance of the female duck.
API Powder (Active Pharmaceutical Ingredient)
Active Pharmaceutical Ingredients refer to the raw materials used in the production of various preparations. They are the effective ingredients in the preparations. They are various powders, crystals, extracts, etc., prepared by chemical synthesis, plant extraction or biotechnology, but Substances that the patient cannot take directly.
According to its source,Active Pharmaceutical Ingredients are divided into two categories: synthetic chemical drugs and natural chemical drugs.Chemical synthetic drugs can be divided into inorganic synthetic drugs and organic synthetic drugs. Inorganic synthetic drugs are inorganic compounds (extremely elements), such as aluminum hydroxide and magnesium trisilicate used to treat gastric and duodenal ulcers; organic synthetic drugs are mainly composed of basic organic chemical raw materials, through a series of organic Drugs made by chemical reactions (such as aspirin, chloramphenicol, caffeine, etc.).
Natural chemical drugs can also be divided into biochemical drugs and phytochemical drugs according to their sources.Antibiotics are generally made by microbial fermentation, which belongs to the category of biochemistry.In recent years, many semisynthetic antibiotics are the combination of biosynthesis and chemosynthesis.Among APIs, organic synthetic drugs account for the largest proportion in variety, yield and output value, which is the main pillar of chemical pharmaceutical industry.The quality of API determines the quality of preparation, so its quality standards are very strict. All countries in the world have formulated strict national pharmacopoeia standards and quality control methods for its widely used API
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