The commercial value of black eggs is higher than that of ordinary eggs, and because of the low yield, the price is also more expensive than ordinary eggs. In addition to white and red eggshells, there is also a layer of green eggshells, which ordinary eggs do not have.

Black-bone eggs contain 274.2μg of selenium per 100g, which is 20 times that of ordinary eggs. The protein content is 13.4g, which is 8.2% higher than that of ordinary eggs, while the cholesterol is only 129.5mg and the fat is 2.8mg, which is 81.4 lower than that of ordinary eggs.

Zinc, selenium, iodine, calcium and other trace elements beneficial to human health are higher than ordinary eggs. 15 kinds of amino acids and vitamins are higher than those of ordinary domestic chickens and ordinary black-bone chickens; It also embodies the characteristics of low fat, low blood lipid and low cholesterol.