Carrot, yam, Shanghai green, Codonopsis pilosula, American ginseng, corn, Chinese cabbage, Flammulina velutipes, tomatoes, mushrooms, lotus seeds, tremella, longan, chestnuts, mung beans, white radish, white gourd, Agrocybe aegerita, red dates, medlar, red beans, dried tangerine peel, gastrodia elata, bean sprouts, cucumbers, kelp and so on. Old duck soup is a kind of meat You can add some vegetables to stew the soup together, which can reduce the greasiness of the old duck soup, and you can also mix meat and vegetables to balance the nutrition, such as yam, carrot, Shanghai green, Chinese cabbage, Flammulina velutipes, tomatoes and so on. But be careful not to put vegetables with high oxalic acid content such as spinach, which will affect the taste and reduce nutrition. When stewing old duck soup, adding some dry goods can increase the nutrition of the soup and make it more delicious, such as mushrooms, lotus seeds, tremella, longan, chestnut and mung beans.

All real ducks, except duck and sea duck, are sexually mature in the first year, and they are paired in the breeding season, unlike swans and geese, which are paired for life. According to the unique behavior of ducks, ducks can be divided into three categories: drilling ducks, diving ducks and perching ducks. The mallard duck is a typical duck and the ancestor of most domestic ducks. Habitat ducks, such as Moscow ducks, have long claws and are favorite arboreal ducks. There are the most kinds of diving ducks (including the ocean). The mallard flies from the south to the north to lay eggs in spring, and then flies to the south for winter in autumn. After they were domesticated by humans, they lost their frivolous migration. In order to get more duck eggs, they were not allowed to stop production and hatch. Over time, domestic ducks lose the ability to hatch eggs. Duck's eyes have a 360-degree field of vision, and you can see behind you without turning your head.