Why don t farmers let ducks hatch ducklings? Is it true that domestic ducks don t hatch eggs?

In the past, it was not farmers who did not let ducks hold their nests, mainly because there were very few ducks. It's not that ducks can't hatch eggs, it's that there are very few ducks. Therefore, in the countryside, most of the time is spent letting the old hen hatch duck eggs.

Not every hen lays eggs, and the hatching hens are all old hens for many years.

Domestic ducks really don't hatch eggs. They only know how to lay eggs each year. Even if they don't lay eggs, they don't hatch like hens.

However, there is no need to worry that they cannot reproduce, as long as the female duck is fertilized with the male, they can hatch ducklings. In the past, it was generally done to let the hens hatch. After all, duck eggs are about the same size as eggs, and they won't recognize them if you put them in a hatching nest.

After hatching, the hens do not hate them and will take care of them like a mother. Later, with the popularization of electricity, ducklings are basically hatched with electricity, and the hatching rate will be higher.

The reason why domestic ducks do not lay eggs like wild ducks is mainly because of artificial selection. Because humans raise ducks mainly to eat eggs and meat, and do not want ducks to hatch duck eggs, so in ancient times, they constantly selected wild ducks that lay more eggs, and slowly after several generations of breeding, these wild ducks have also become a domestic duck, has lost the instinct to lay eggs. All domestic ducks are domesticated from wild ducks.

The nature of wild ducks is to hatch duck eggs, but the purpose of domesticating wild ducks is only to eat meat. Ducks like to live in places with water, so ducks can't be fenced like chickens and need more space. We can often see duck farmers in the countryside who will take the ducks to some fields and let them find food on their own.

On the one hand, it can improve the lean meat rate of duck meat, improve the quality of duck meat, and on the other hand, it can reduce the cost of breeding.

Domestic ducks have lost their wild and maternal nature, and even lay eggs in the process of foraging. In the past, duck eggs were often seen in the fields because duck farmers missed them. Ducks are raised to eat meat.

Generally speaking, ducks can ** before they are fully developed, so these ducks gradually lose their ability to hatch.

Domestic ducks really don't hatch eggs, they only know how to lay eggs all year round, and even if they don't, they don't hatch eggs like hens. But there is no need to worry that they will not be able to reproduce offspring, only the female duck is mated and fertilized with the male duck, and the ducklings can hatch.

Because ducks do not hatch, the hatching function of ducks has deteriorated, and they cannot hatch eggs, and the success rate of domestic duck hatching is very low.

Summary. 1. First of all, the duck eggs should be fertilized.

2. Build a comfortable nest for the female duck with bran or dry straw and put the duck eggs inside.

3. Then let the female duck who wants to hatch the ducklings hatch, and when the time is up, the ducklings will come out.

It is usually 21 to 30 days old, and the ducklings will come out.

Excuse me, but please go into more detail?

Excuse me, but please go into more detail?

It is usually 21 to 30 days old, and the ducklings will come out. 3. Then let the female duck who wants to hatch the ducklings hatch, and when the time is up, the ducklings will come out.

2. Build a comfortable nest for the female duck with bran or dry straw and put the duck eggs inside.

1. First of all, the duck eggs should be fertilized.

Excuse me, but please go into more detail?

It is usually 21 to 30 days old, and the ducklings will come out. 3. Then let the female duck who wants to hatch the ducklings hatch, and when the time is up, the ducklings will come out.

2. Build a comfortable nest for the female duck with bran or dry straw and put the duck eggs inside.

1. First of all, the duck eggs should be fertilized.

Excuse me, but please go into more detail?

It is usually 21 to 30 days old, and the ducklings will come out. 3. Then let the female duck who wants to hatch the ducklings hatch, and when the time is up, the ducklings will come out.

2. Build a comfortable nest for the female duck with bran or dry straw and put the duck eggs inside.

1. First of all, the duck eggs should be fertilized.

Excuse me, but please go into more detail?

It is usually 21 to 30 days old, and the ducklings will come out. 3. Then let the female duck who wants to hatch the ducklings hatch, and when the time is up, the ducklings will come out.

2. Build a comfortable nest for the female duck with bran or dry straw and put the duck eggs inside.

1. First of all, the duck eggs should be fertilized.

Ducks will hatch their eggs.

Ducks are generally not allowed to hatch eggs. Because in the process of duck hatching duck eggs, it takes a long time to lift and lose, generally 28 days, so that the mother duck will stop laying eggs during the incubation period, and the weight will also be reduced, so that it will affect people to eat duck eggs and duck meat.

Put the duck eggs in the hen hatching eggs for incubation together, so that not only can save the time of the hen duck incubation but also increase the egg production of the hen, and the hen can not distinguish between the egg and the duck egg, and the hatched duckling hen will lead the growth, so that the hen hatching duck eggs has become a good thing to kill two birds with one stone, and it has formed the habit of letting the hen hatch duck eggs.

How duck eggs are hatched is as follows. How to hatch duck eggs is as follows:

1. Constant temperature incubation: pay attention to the staggered placement of new and old eggs. Normally, the temperature in the incubator should be controlled, but attention should be paid to the temperature difference between the front and back, up and down, and left and right in the incubator.

Otherwise, the hatchability will be reduced. This incubation method is a method in which different batches are carried out at the same time and are operated in an assembly line.

2. Variable temperature incubation: this incubation method is used when the eggs are insufficient. Because duck eggs are large and have high fat content, after 13 days of incubation, metabolic heat is generated. Recommended temperature: 1st day, 2nd day, 3rd day.

3. Egg shower: From the fourteenth day of incubation, spray the embryo eggs once a day with warm water of 25 °C to 30 °C, and incubate until the twenty-fifth day, and the number of spraying can be increased to 2 times a day.

Method of artificial incubation of duck eggs:

1. Make a simple incubator, use the electric heating treasure at home as the heat source, use four pieces of pure cotton thermal clothing to overlap together to cast a thick bottom, and then use a few pieces of thermal clothing in the shape of the bird's nest in the surrounding city, which is easy to store the hot treasure and keep warm;

2. Clean duck eggs, there is a layer of dry mucous membrane on the surface of duck eggs, pay attention to protection, but the bacteria in the feces will affect the hatching rate, briefly put in warm water, and gently wash off;

3. Dry the duck eggs, put them in a simple incubator and incubate them for 27 days, the initial incubation temperature is about 38 degrees Celsius, and the mid-term incubation temperature should be slightly adjusted, the temperature should be kept at 37.5 degrees Celsius, and the later temperature can be kept at 37 degrees Celsius.

1. Constant temperature incubation: pay attention to the staggered placement of new and old eggs. Normally, the temperature in the incubator should be controlled, but attention should be paid to the temperature difference between the front and back, up and down, and left and right in the incubator.

3. Egg shower: From the fourteenth day of incubation, spray the embryo egg once a day with warm water of 25 -30.

Extended information: The three-dimensional incubator has a fan device, fast air flow speed, high fat content, low water content, high metabolic heat, and easy evaporation of water in the egg. If the humidity is too low, the water in the egg evaporates quickly, and the embryo is easy to adhere to the shell membrane, which affects the normal shelling.

The general principle of humidity change is "high at both ends and low in the middle".

At the beginning of incubation, the embryo produces amniotic fluid and allantoic fluid, and inhales some water vapor from the air, and the relative humidity is controlled at about 70. In the middle of incubation, the embryo should discharge amniotic fluid and allantoic fluid, and the relative humidity should be controlled at 70.

In the later stage of incubation, in order to produce carbonic acid by the interaction of appropriate moisture and carbon dioxide in the air, the calcium carbonate in the eggshell turns into calcium bicarbonate and becomes brittle, which is conducive to the beginning of Pei Taipo Cole, and can prevent the fluff of the ducklings from occupying the shell, and the relative humidity should be controlled at 65 -70. If the humidity is not enough in the later stage of duck egg incubation, you can spray water directly on the surface of the eggshell to increase the humidity.

Incubation points of duck eggs 1 After the eggs are taken out of the storage room, they should be naturally preheated in the incubation room for 5-6 hours, and the code tray will be incubated after the egg surface temperature reaches room temperature, and the position of the code plate is consistent with the storage. The incubator should be cleaned, disinfected, debugged and preheated in advance. 2.

Incubation temperature and humidity requirements The ambient temperature of the hatchery room is less than 16 mastery, and the incubator space temperature is the degree on the 1st to 7th day after incubation, the 8th-21st day is the degree, the 22nd-25th day is the degree, and the 26th-28th day is the degree; After incubation, the incubation humidity is 60-65% on days 1-14, 55-60% on days 15-25, and 70-75% on days 26-28. 3.On the 1st to 26th day after incubation, the egg should be turned every 2-3 hours, 8-12 times a day, and the turning angle is ·110 degrees, so that all parts of the embryo are heated evenly and prevent the embryo from sticking to the shell.

Incubation to 19 days old, that is, the upper and lower egg trays are reversed, and the egg trays are switched around with the best eggs to make up for the impact of the temperature difference. 4.The first egg inspection is carried out on the 7th day after hatching, and the infertile eggs and dead embryos are picked out by taking the eggs.

The embryo of the fertilized egg is developed normally, the blood vessels are radially distributed, and the color is bright and red; The dead embryo egg is light in color, with irregular blood rings and blood arcs, and no radial blood vessels; The infertile egg is shiny and has no blood vessels, and only the shadow of the yolk can be seen. The second irradiation is performed on day 25-26 after setter to remove dead eggs and move viable normal eggs into hatcher trays and hatchers. The live embryonic eggs are black-red, the air chamber is sloping, the border is curved, and there are coarse blood vessels around it; Dark red blood vessels are not visible around the air chamber of the dead embryo, the edges are blurred, and some eggs are lighter in color and have small hairs.

During the incubation process, embryos are sampled from time to time in order to grasp the development of the embryo and take corresponding measures. 5.After hatchling with duckling eggs up to 26 days, live eggs should be placed on a plate.

After the tray is put on the plate, the temperature and humidity should be controlled according to the temperature and humidity requirements of the egg incubation, that is, the temperature should be appropriately reduced compared with the previous incubation stage

Hatching duck eggs is a patient but fun thing to do.

Method steps.

1 7 step by step reading.

Plan ahead, duck eggs usually take up to 28 days to hatch, but some breeds take up to 35 days.

Allow the incubator to stabilize before putting in the eggs, set the temperature to 55% Celsius, and let the incubator stabilize for a day or two before putting in the eggs.

Choose your duck eggs carefully, these eggs must be kept in good condition for smooth hatching, avoid cracking, double yellow, misshapen, oversized, short stature, or particularly dirty.

Check the incubator four times a day, after putting the duck eggs in the incubator, check them at least four times a day, and when you check them, turn them over so they can receive all the calories, and on the first day, you should check the duck eggs every hour.

After the first week, unsuitable duck eggs are removed, such as abnormal color of the shell, no change in the inside, etc.

After 25 days the eggs are moved to the hatching tray, you can move them to a separate incubator or change the settings of the incubator to accommodate the eggs at this point of incubation, the temperature should be at 65% Celsius and humidity. When the eggs start to sharpen or change significantly, increase the humidity to 80% and the vents by 50%.

When hatching is complete, remove the hatchling ducklings from the incubator.

Quality requirements for eggs.

1. The first thing to pay attention to is the quality of the breeding ducks, and to select those duck eggs with stable genetic performance, excellent production performance, high reproductive ability and good health status.

2. Ensure the freshness of the eggs, the shorter the storage time of the eggs, the better, to store 7 days is appropriate, 3 5 days of egg storage time, 3 days for the best storage period. Eggs within two weeks can maintain a certain hatching rate; If it exceeds two weeks, the incubation period is delayed, the hatching rate is reduced, and there are more weak ducklings. The freshness of eggs is not only related to the storage time, but also related to the temperature, humidity, and method of preservation.

3. The shape of the duck egg, the egg shape should be normal, oval, too long and round, the two ends are not suitable for the use of eggs, the egg weight should meet the requirements of the variety, too large and too small are not good, the egg weight is too small to hatch the ducklings are smaller, the egg weight is too large and the hatching rate is low. Large meat duck eggs generally weigh 85 to 95 grams.

4. The structure of the eggshell is dense and uniform, the surface is normal, and the thickness is moderate. The thickness of the eggshell is generally millimeters. When the eggshell is too thick and too hard, the heating is slow during incubation, the water is not easy to evaporate, the gas exchange is poor, and it is difficult to break the shell; When it is too thin, the water evaporates too quickly and the hatchability is reduced.

The eggshell structure is uneven, and the surface is rough, so it is not suitable for egg.

5. The cleanliness of the eggshell surface, there should be no feces, soil and other dirt on the eggshell surface, otherwise, the pathogenic microorganisms in the dirt will invade the egg, causing the egg to deteriorate and rot. Or because the dirt clogs the pores, hinders the gas exchange of the eggs, affects the hatchability, and also contaminates the machine during the incubation process, if a few eggs are slightly contaminated, they can be incubated after the necessary treatment before hatching. (2) The selection method of eggs 1, the sensory method, is one of the methods commonly used in the selection of eggs in hatcheries.

The quality of eggs can be identified by human senses such as looking, touching, hearing, and smelling, which can be roughly judged, and its identification speed is relatively fast. (1) Observe the appearance of the egg, the structure of the eggshell, whether the egg shape is normal, whether the size is moderate, and how clean the surface is; (2) Feel the smoothness or roughness of the eggshell by touching it, and feel the weight of the egg;