Let the eggs step on the water to see if there are chickens in it.

Every spring when I was a child, my father used a bucket filled with warm water, and then took out the eggs hatched by hens for about 18 days and watched them step on the water.

When the egg steps on the water, there is a chicken's egg in it, because the chicken will swing in the eggshell after being stimulated by hot water, which will cause the whole egg to float up and down on the water, or even swing left and right.

What widowed eggs without chickens, those eggs with dead chickens in eggshells, sank directly to the bottom of the basin.

Farmers let eggs step on the water during the incubation period of hens. Mainly because the chickens in the market are not expensive and the survival rate is high. When a hen hatches a chick, everything is troublesome. The birth rate caused by egg hatching is not high, and the survival rate of chicks is not as high as that of chicks. Therefore, many farms are gradually eliminating the way hens hatch eggs.

Choose to use a strong flashlight to observe whether the selected eggs are fertilized successfully before hatching. Eggs are usually illuminated by flashlights. If the eggs are well polished, the embryos will become black spots. If you are an experienced farmer, you can basically tell. When a hen hatches a chick, it usually takes out the hatched egg within 5 to 7 days and re-irradiates it with a bright flashlight. The purpose of this operation is to ensure that the hatched eggs and the embryos in them are developing and surviving. If the eggs hatch between 16 and 18 days, farmers will take back the hatched eggs and climb to the surface. The task is to ensure that the chicks trying to hatch are still alive.

The water used for treading water at ordinary times is warm. You can't check it when it's cold. If it is too hot, the chicken will get hot. Usually, the temperature of this water is about 45 degrees. Do the experiment yourself, and then put your hands in warm water. If it is higher than 80 degrees, the chicken will get hot. After discovering the "bad guys", please replace the new eggs in time and re-hatch. Hens are very concerned about holding eggs, so if there are more eggs, the chances of hatching chicks will be reduced, not completely hatched. If you miss it, you have to wait at least three months. When a hen hatches a chick, if the hatched eggs are not evenly heated due to the size, it is difficult for the lowest eggs to reach the temperature of the hen, which will affect the hatching process. Heating eggs by treading water helps to speed up the incubation process.

Therefore, the role of farmers in letting eggs tread water when hatching hens is to see if there are live chickens inside.