The difference between goose down and duck down lies in four aspects: visual difference, bulkiness difference, smell difference and yield difference. The specific analysis is as follows:
1. Visual difference
(1) Mature goose down has larger velvet and longer velvet and is of higher quality.
(2) The brushed duck down has shorter velvets and smaller pods, which are of slightly lower quality.
2. Difference in bulkiness.
(1) The growth period to maturity of goose with plump velvet flowers is at least about 100 days.
(2) The fullness of duck down feathers is low. The growth period of ducks to maturity is at least about 40 days.
3. Differences in sense of smell:
(1) The feed of goose down is mainly plants. General weeds and aquatic plants can be eaten by geese, so goose down has low fat content and almost no odor.
(2) Eider ducks are omnivorous animals. Whether it is feed, insects, earthworms, fish, shrimp, etc., they can be used as duck food, so they will have a duck smell.
4. Differences in output:
(1) Goose down is only produced once a year and the amount of down produced by each goose is small.
(2) Duck down can produce up to three seasons a year, and ducks produce a large amount of down.
Extended information:
1. Goose down is often used to fill certain things to keep warm, such as goose down quilts, goose down jackets, etc. Among all kinds of thermal insulation materials, there is no denying that down is the most superior because of its soft structure and its ability to be folded into extremely small pieces.
2. Duck down is a reed-flower-shaped fluff that grows on the duck’s abdomen. The pieces are called feathers. Since down is an animal protein fiber, the spherical fiber is densely covered with tens of millions of tiny triangular pores, which can shrink and expand with changes in temperature to produce a temperature-regulating function. It can absorb the flowing hot air emitted by the human body and isolate the invasion of cold air from the outside.
Baidu Encyclopedia - Goose Down
Baidu Encyclopedia - Duck Down