Captive ducks, if they have a small amount of activity, plus artificially provided excessive amounts of high-quality feed, can easily cause ducks to overweight and reduce egg production. If the ducklings develop too early in the early stage, it will cause early production, shorten the peak period of egg production, and will directly affect the egg production rate. Therefore, in order to make ducks produce more eggs, it is necessary to start feeding restrictions on young ducks. General requirements for laying duck weight 1.4 to 1.5 kg. The nutritional level of prenatal feeds need not be too high, as long as the diet contains 14% crude protein and 10.8 to 11.3 megacalories of metabolic energy per kilogram; the concentrate can not be fed too much but must be fed with more green feed to make the duck Have a sense of fullness. The feed supply of ducks after they are put into production should be adjusted according to their egg production rate and weight change. It is best to sample ducks once a month, so that the weight of laying ducks entering the egg production period will be constant at 1.4-1.5 kg. After that, depending on the egg production rate and weight changes, the feed nutrient content and feeding amount will be adjusted appropriately. Even if there is a slight change in the weight of the duck, it must not exceed 1.5 kg until it is eliminated. COVID-19 Coronavirus Rapid Test Kit Anesthesia Medical Co., Ltd. , http://www.sinoanesthesia.com