After the chicken and duck mate, the egg is fertilized, which will give birth to a new life.
eggs refer to eggs laid by some land animals, and the embryos are covered with waterproof shells. Birds, reptiles, mammals, platypus and echidna all lay eggs. At a proper temperature, the eggs will hatch at a certain time, and the larvae will break through the eggshell with the horniness above the mouth. Eggs are rich in nutrition, low in price, and can be made into stewed eggs, tea eggs, cakes and other various delicacies, so they have been regarded as the best source of nutritional supplements since ancient times.
Egg refers to the egg laid by some land animals. The embryo is covered with a waterproof shell, and the surface of this shell has many pores. If the egg is washed with water, it will not hatch. Birds, reptiles and mammals all lay eggs, and so do insects.
An egg is an egg without a shell, and the outer layer of the egg is covered with a gelatinous substance, such as frog eggs or toad eggs. Generally, mammalian eggs are not excreted for fertilization, so they are called eggs. At a proper temperature, the fertilized egg will hatch at a certain time, and the larvae will break through the eggshell with the horniness above the mouth. Most birds' eggs are pear-shaped, that is to say, one end is sharp and the other end is large. This is to make the whole egg heat evenly when the parent bird hatches the eggs, so as not to let the eggs roll out of the nest and evolve into the shape, but to roll towards the sharp end.
The egg has an air chamber at the end of the big head, which is used for oxygen exchange to facilitate breathing. Therefore, there are countless pores on the surface of eggs. Protein is as protective and stable as amniotic fluid, while yolk provides nutrients for embryo growth.
Eggs are rich in protein, fat and vitamins, and are one of the important foods. Often eat eggs, duck eggs, pigeon eggs, quail eggs and so on.
it can be made into steamed eggs, baked eggs, fried eggs and preserved eggs.
The finished food products include egg tart, tempura, double skin milk, preserved egg crisp, cake, egg drop soup, four-color eggs, preserved eggs, salted duck eggs, tea eggs and so on.
Eggs are one of the most important foods for human beings. Common eggs, including eggs, duck eggs, goose eggs and quail eggs, have almost the same nutritional composition and structure, among which eggs are the most common. Eggs are composed of eggshell, yolk, protein and egg laces, which have the following nutritional values:
Eggshell
Eggshell is rich in calcium carbonate, which is very easy to digest and absorb, and is the best source of calcium supplement. Under normal circumstances, about 2 grams of eggshells are ground into powder every day to eat, which can prevent backache, easy fracture or osteoporosis caused by calcium deficiency and bone loss.
Egg yolk
Egg yolk is rich in nutrients such as protein, fat, calcium, lecithin and iron. Lecithin can promote the elimination of cholesterol in blood vessels after being absorbed by the stomach and intestines, and has the function of preventing atherosclerosis. Moreover, after being digested and absorbed, lecithin can generate choline, which is related to the nerve transmission function of the brain and can promote the ability of learning and memory, thus achieving the effect of preventing senile dementia. Choline can also prevent liver from accumulating excessive fat, avoid fatty liver and improve liver function. The iron contained in egg yolk has the highest utilization rate and is the most blood-enriching natural food.
protein
protein contains a protein called albumin, which has the function of scavenging active oxygen, enhancing human immunity and achieving the effect of preventing cancer. Moreover, after the egg albumin in the protein is decomposed by digestive enzymes, it can produce a lysozyme, which can activate macrophages, resist the invasion of foreign germs and improve the body's immunity.
egg lacing
There are two white cords around the yolk, which is the egg lacing. It is a part of protein and a source of high-quality protein. It also contains a component also found in bird's nest, called sialic acid, which has antioxidant effect, can be combined with viruses invading human body, thus eliminating viruses, preventing infection and preventing cancer.
In addition, Compendium of Materia Medica, an ancient Chinese medicine book, records that an egg is sweet and flat, which can calm the five internal organs and calm the mind; It can prevent convulsion and prevent miscarriage, and has the functions of nourishing yin, strengthening spleen, tonifying lung, etc., and it can tonify dryness. If eaten often, it can eliminate illness and prolong life. It is most suitable for growing children, teenagers and pregnant women as a nutritional supplement.