Winter science ducks can reduce the incidence of infectious diseases, poisoning and accidents. The rearing ducks in the pens should provide a variety of nutrients that are adequate and complete, especially the nutrients necessary for the growth of bones and feathers. Feed formulation of bred ducks should be formulated according to the growth and development rules, and according to different breeds and feeding purposes, appropriate restrictions should be adopted for feeding, increasing the ratio of green and rough feeds, and adding appropriate amount of animal feed to promote feed digestion and absorption. In the rearing period, each duck needs about 3 kilograms of feed, feeding 6 times per day and night. The interval between feedings should be as equal as possible. Concentrates are mostly fed with powdered ingredients and are supplied with clean water. When keeping a pen home, management should pay attention to the reasonable density according to the season and the individual size of the duck. In addition, attention should be paid to strengthening exercises to promote the growth of bones and muscles, prevent over-fertilization, and enhance physical fitness. The method is to drive around the house every day to make a circular motion every day for 23 minutes, exercise 4 times a day, but also can drive away in the playground or nearby places. Light during the breeding period needs to be guaranteed for 3 hours a day and should always be kept low light at night. The intensity of 3 watt meters is appropriate. In case of power outage, the candle light should be added in time. Sand Lance Sand Lance,Pacific Sand Lance,Sand Lance Fish,Frozen Sand Lance ZHEJIANG EVERNEW SEAFOOD CO.,LTD , https://www.evernewseafood.com