Pick eggs and don't be "good-looking."

eggs mainly white and brown shell color, as well as powder, green two series, these four colors can basically cover all shell colors. Eggshells have color because they contain pigment.in the

, scientists analyzed the pigment composition of eggshells of
108,
eggs and found that there were only
3
pigments in eggshells, which functioned like three primary colors, forming eggs of different colors through different combinations of three pigments. The
three
pigments are
protoporphyrin
),
biliverdin
), and the metal chelate of bilirin. The original moths mainly produce yellow, pink and brown eggshells, while biligrel produces blue and green eggshells. In general, an egg will not have only one pigment, radon compounds, biligrel and bile chlorosteroid metal chelates mixed in different proportions, will produce a variety of different colors of eggshells, which also formed the different colors we see eggs.the formation of eggs how do these pigments are processed into eggshells? When did you add it? It also starts with the process of forming eggs. The first is that the hen's ovaries produce ovaries, each with the potential to form an egg yolk. When the egg cells mature (form egg yolks), they enter the fallopian tubes; Then it leaves the puff and enters the gorge, forming inside and outside? Eggshell membrane, this time, egg yolks and proteins have been presented, is a no eggshell "soft egg." The next destination is the uterus, where the infiltration of uterine fluid increases the weight of the egg and rounds in shape, and then calcium is deposited on the eggshell membrane to form the eggshell, which is coated with a thin, horny layer of protective film on the outside of the eggshell, while the pigment deposits secreted by the pigment cells in the lower wall of the fallopian tube "brush" a layer of color. At this point, a complete egg is formed. From the whole process, we can see that the eggshell formed in the final process of the entire process, before the color of the eggshell formed, the substance inside the egg is formed. Therefore, in chronological terms, the color of the eggshell can not directly affect the nutritional content of eggs.fact, eggshell pigment is not directly related to the food or feed it eats, mainly to genes. Chickens of different gene linees produce eggs of different colors under the control of two gene bits on the normal chromosome. Eggs of different colors have no difference in quality or quantity in nutrition. Foreign studies of eggs of different colors of eggshells found that some yellow eggshells in the
n-3
fatty acid content may be more, but, eggs of different colors eggshells, nutritional value differences are generally very small, almost negligible. There are also scientists in China to different colors of eggshell analysis, the results found that different eggshell color of egg nutrition is not significantly different.,choose eggs or don't value the color of eggshells too much, just by color is difficult to judge which eggs are more nutritious.preference for eggshells is more about consumers and the market's pursuit of the appearance of food. Eggs are a good source of protein, and health guidelines around the world generally recommend eating one egg a day in a balanced diet, with no emphasis on which color to choose.