The lace duck is a kind of water duck; scientific name is green duck, anciently known as mallard duck, morning duck, etc., mainly living in the reeds of rivers and lakes to eat fish, shrimp and shellfish, so there is the name of the clam duck. Duck meat contains protein, fat, carbohydrate, calcium, iron, phosphorus, thiamin, riboflavin. Eggs contain vitamin A, B1, B2, magnesium, potassium, chlorine, sodium and so on.
Expanded Information
Raising Methods
1, choose a good duckling. Select individual large, umbilical cord clean and dry, lively, soft and glossy fetal hair, eat fast and more, call loud ducklings for breeding ducks.
2, open food. Buy back the ducklings first with 50 grams of Huanglian and licorice 250 grams of decoction intercept 100 ducks to take, and then 0.5 kg of mung beans, 0.1 kg of gypsum mixed into 10 kg of rice, even fed 3 to 5 days. Often give ducklings drinking brown sugar water or glucose water or honey water.
Ducklings 7 days do not rush into the water, do not let the ducks in the temperature of more than 32 ° C place activities, but in the bamboo forest, sleepy gardens, streams and other shade rest, but also can not let its squatting set of piles.
The ducklings are fed with half cooked rice and cool water, 5 to 7 times a day, half full each time, 5 days after the quantitative feeding of light saline; 7 days later, before 10 a.m. and after 18:00 p.m., the ducks will be driven into the field water training and release, 15 minutes each time.
20 days every day, but also to feed some of the green to feed, such as duckweed; 20 days after the ducklings can find their own food should gradually reduce the number of times and number of feed, you can salvage some of the fecal maggots and worms to feed, 30 days after the paddy fields, streams and rivers can be driven into the stocking.
3, additional shade shed. Early fall due to the air temperature, water temperature is still high, should try to make ducks early and late, when it is hot at noon, the ducks will be driven to the shade shed or under the tree to rest and cool off, reduce heat radiation, in order to prevent heatstroke. It is appropriate to set up 1 shade shed for every 100 ducks.
Morphological features
The water duck is one of the smallest river ducks, less than 40 centimeters long, only 2/3 of the common mallard.
The species of males and females heteromorphic and heteromorphic, the male head and neck of the base color of chestnut brown, from the two sides of the eyes until the neck side of the distributor of a green band of color in the form of commas, and the chestnut brown color in stark contrast to the base color.
The "green comma" on the face is also an important feature in identifying the male Green-winged Teal, in addition to the comma, from the base of the beak there is a faint white line extending to the eye; upper back, shoulders, both coats from a distance, gray, and when viewed from a distance, it is a white background densely covered with black fine horizontal lines.
The lower back and loins are brown, the upper tail feathers are black; the wing mirrors are the same emerald green color as the head's "big comma", and the outermost of the primary feathers is white, forming a striking white cross-band between the upper and lower body when the wings are closed, which is an important feature for identifying this species.
The chest and upper abdomen are light brown with dark brown round spots, and the under-tail feathers are cream-colored, forming a cream-colored patch on the rump with a black fluffy border, which is the third most important feature for identifying this species.
The female is a darker version of the male, with a brownish body tone, and does not have the three main features of the male, "large facial comma", "white lines on the side of the body" and "cream buttocks", but the female is a darker version of the male. The female retains the bright green wing mirrors and has a very small stature, all of which are identifying features of females of this species.
Baidu Encyclopedia-Buffalo Duck