When winter arrives, the weather becomes colder and the duration of light shortens, which is the lowest season for laying ducks. If the husbandry and management are done well, it will be possible to keep the laying ducks at an egg production rate of over 80%; if the management is unsatisfactory, the laying rate will be significantly reduced. Winter management of laying ducks focuses on insulation and maintaining a certain amount of light. First, insulation. Repair the doors and windows, plug the caverns and north windows, strictly prevent the intrusion of thieves, keep the grasses dry and replace them in time, and maintain the temperature in the sheds to reach 5°C or more at night. When the temperature is high, pay attention to ventilation and ventilation. Second, the scientific preparation of diet. Duck winter must not only protect the cold but also produce eggs. Its energy consumption is relatively large. It is necessary to appropriately increase the proportion of corn and other energy feeds in the feed formulation, increase the amount of feed by 10% to 15%, and provide sufficient green feed or regular supplements. Vitamin A, vitamin D, vitamin E, etc. If 2 grams of lard is fed to each duck and duck every day, supplementing the energy consumption of the duck will help increase the egg production rate. Third, often "dry duck." The ducks were originally used for stocking animals. When they were raised, they should artificially increase their activity. They must circle the ducks in a circle every day to make circle movements to prevent the ducks from becoming fat, enhance their ability to keep out the cold, and promote their prolific eggs. Bigger. When going to dry ducks, walk slowly to prevent the ducks from being frightened. When the weather is too cold, ducks should be sent out from the shed in the morning to prevent sudden cooling and the ducks catch cold. Fourth, increase the lighting time. In winter, natural light is less likely to cause a decrease in the egg production rate. A 60-watt light bulb can be installed every 30 square meters in the duck canopy, so that the total daily lighting time can be maintained at about 16 hours, which can promote the maturation of eggs and increase the egg production rate. Fifth, keep hot feed warm drink. In winter, the energy consumption of the ducks is relatively large. The spices must be fed with hot water and warmed (about 38°C). Drinking water should provide warm water. Do not drink frozen water to the duck. Six, normal play. Duck late in the morning and duck early in the evening to reduce the number of launches and shorten the time to launch. In severe climate, when the temperature is below -5°C, there is no strong shouting in the ducks and no swimming is allowed. Seventh, increase the density appropriately. It is possible to increase the breeding density per unit area and raise 8-9 ducks per square meter to facilitate mutual heating and maintain a high temperature. Eight, timely feeding night food. The winter nights are long and short and can be fed with warm feed at night, which is good for ducks to keep warm and can increase the egg production rate by more than 10%. Night feeding should pay attention to two points: one is to provide warm drinking water; the other is that night food is mainly corn and other energy feed, supplemented by protein feed. Nine, regular immunization disinfection. Before the winter, various types of immunization such as bird flu and duck plague should be done. The duck shed should be regularly cleaned and disinfected, and the insects should be dewormed regularly. Once the diseased duck is found, it is treated in isolation and the duck house is sterilized. Hearing aid manufacturers strive to optimize their wireless hearing aid offerings both in terms of connection reliability as well as power efficiency. Variance across patients and listening conditions can make optimizing wireless hearing aid systems a complex process.
Factors such as connection distance, proximity of reflective surfaces, interference from other wireless devices, and energy loss through body absorption must all be factored into the hearing aid design. For example, indoor wireless performance may be very different from wireless performance experienced outdoors, where the only reflective surface may be the ground on which the hearing aid user is standing. Furthermore, individual differences in body geometry increase the variability that wireless engineers must account for when designing a system that provides each user with a consistent and reliable experience.
As awareness of wireless hearing technology grows, hearing healthcare professionals may notice an uptick in long-term safety concerns. Consumers should be confident knowing that wireless hearing aids are safe and strictly regulated medical devices that meet governmental wireless communication standards in addition to those set forth for medical devices.
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