Medical High-polymer Tube Products Nebuliser Mask,Nebulizer Mask ,Laryngeal Mask Airway,Nebulizer Mask And Tubing Surgimed Medical Supplies Co.,Ltd , https://www.surgimedcn.com
Mallard duck rearing density
Mallards like to live in groups and can meet the management requirements of homes, land farms, and water farms. They can calculate 4 to 5 wild ducks per square meter according to the size of their homes and land farms. The proportion of 4 groups, the maximum can not exceed 1: 10, the group can be from 200 to 1000 sizes. Female mallard ducks are used to laying eggs on plunged mud on the ground. By the age of 140 days, some nests can be made on the ground and some hay can be placed on the ground so that the laid eggs are cleaner. Or place a nest box in the house. Every 4 to 5 female mallard ducks should be assigned to a nest box. Place hay or straw or dry wood shavings in the box. Set eggs once a day and set eggs once in the afternoon.