1, Bird's Nest: It is made of clay, hay and a little saliva in the mouth.

2, bird's nest: mainly using saliva, nesting and raising young is extremely tenacious, naturally condensing saliva.

Second, the appearance is different.

1, domestic bird's nest: mostly gray-black, rough inside the nest, like a loofah.

2. Bird's Nest: Bird's Nest is big and plump. Due to the influence of minerals, there are three colors: yellow, white and red. The nest is clean and translucent.

Extended data:

Nutritional components of bird's nest:

1. Bird's nest contains a variety of amino acids, including phenylalanine, valine, leucine, tyrosine and arginine. The content of hydrolyzed amino acids in bird's nest is 42.272%, and the content of essential amino acids accounts for 42% of the total amino acids. At the same time, the contents of umami amino acids (aspartic acid and glutamic acid) and aromatic amino acids (tyrosine and phenylalanine) are higher.

2. The protein content of bird's nest is very high.

3. Sialic acid, also known as bird's nest acid, is the main bioactive component of bird's nest, mainly in the form of N- acetylneuraminic acid.

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