The duck kidney is the duck stomach, usually called duck gizzard.
The duck belongs to the birds, duck kidney and duck stomach is the same organ on its body, duck gizzard is the duck's muscle stomach, duck kidney shape flat round, the meat is tight, tough and chewy, taste long, no greasiness, duck gizzard main nutrients are carbohydrates, proteins, fats, niacin, vitamins and minerals such as calcium, magnesium and so on.
The stomach of birds is divided into glandular stomach and muscle stomach. Glandular stomach thin wall, wall cells secrete gastric acid and a variety of digestive enzymes, used to soak, digesting food; myogastric developed muscle wall, the inner wall is covered with a layer of hard horny membrane, the inner cavity contains a number of small grains of sand (swallowed by birds), similar to the role of the teeth, used to grind the food.
Expanded
Buy gizzard notes:
Fresh gizzard appearance is purplish-red or red, the surface of the elasticity and luster, the texture is thick; not fresh gizzard for the black and red, the surface of the surface of the inelastic and glossy, the meat is flaccid.
Family to buy frozen gizzards, can be placed directly in the refrigerator freezer freezer storage, if the fresh gizzards are not suitable for long-term preservation, it is best to eat as soon as possible. If you need to keep fresh for a few days, you can clean up the gizzards, add cooking wine and a little salt and mix well, wrap it in a plastic bag and put it in the refrigerator freezer to keep it cold.
Baidu Encyclopedia - Duck Gizzard
Baidu Encyclopedia - Duck Gizzard Effects and Roles