One scared. Ducks startled at a low rate will reduce the egg production rate of 5%, frightened assembly reduced by more than 30%, and produce soft shell eggs for several days. For this reason, the wild grazing should not rush to rush and squeak, to avoid the flock. In addition, we must pay attention to not polyculture of new and old ducks, because the new ducks love to call and make ducks have no peace and affect the production of eggs. Two afraid of heat. Ducks have no sweat glands and high temperatures are extremely detrimental to ducks. In the evening, when the Sheweng temperature exceeds 37°C, the ducks should be allowed to leave and let the ducks cool off in the open air. During the day, do not grazing at high temperatures. Three afraid of disease. The most serious disease that currently harms ducks is duck plague and duck cholera. In order to control the harm of these two kinds of diseases, we must promptly inject duck plague vaccine and fowl cholera vaccine to ducks. Four afraid of the old. Ducks generally start production around the age of 120 days. After they start production, they have the highest egg production in the first year and decline year by year in the second and third years. The general life of a duck is 2 years to 3 years. Fear of widowhood. Healthy ducks have strong lust. For this reason, 25 females and 1 male duck should be used in ducks to facilitate the adjustment of female ducks' sexual life, promote the growth and development of the female reproductive system, and increase egg production. Six afraid of no night food. The duck has a strong metabolic function and must supply water and feed at night to ensure that the ducks are not hungry, thirsty, and not called for their eggs overnight.