Biogas is used to incubate chickens

Biogas incubation has the advantages of simple operation, safety and reliability, high hatching rate, reducing cost and so on. Due to the small capacity of household biogas digester, this technology is very suitable for small-scale (less than 1000) farmers. The relevant technical parameters are listed later for reference: 1 cubic meter of biogas can hatch 475 eggs, the biogas incubator consumes 300.40 litres of gas per hour, the hatching rate of fertilized eggs is more than 90%, and the hatching rate of biogas is 5% 15% higher than that of electricity and oil. and there is no worry of power outage, saving 3 kilograms of fuel for every 100 eggs hatched.

First, prepare before hatching

1. Build a hatchery

The hatchery should be ventilated, sunny, warm, moderately wide and narrow, easy to operate, clean and sterilized with quicklime. Existing housing is also available for incubators. The room temperature during the incubation period should be raised to 20: 24 ℃.

two。 Make an incubator

The incubator is made of wood or fibreboard, and the clearance size is 60 cm × 60 cm × 110 cm. It is best to make a sandwich, which is filled with sawdust and other thermal insulation materials. The door of the box is required to be flat, sealed and flexible to open, and the heat preservation measures are the same as those of the box. The box can also be made into a single layer and wrapped with thermal insulation materials such as old cotton wool. The box is broken by 18cm to make a 6-layer egg plate; the egg plate is made of wood, and the bottom is nailed with iron mesh, which can also be worn with iron wire, and the mesh should not leak eggs; there is a small hole in the upper, middle and lower parts of the box, and three temperature and humidity meters are inserted.

3. Incubator stove

Build a biogas stove, the stove should be smooth, strong and safe, equipped with a 57 cm diameter iron pot, a biogas stove under the pot, the biogas gas pipeline is standardized and reasonable, the switch is flexible and airtight.

II. Management of incubation period

1. Egg breeding treatment

Select fresh, smooth, oval-shaped clean eggs, rinse with clean water, and soak in 0.1% potassium permanganate solution for 35-40 ℃ for 10 minutes.

two。 Loading plate

Drain the sterilized eggs, put them on a plate, tilt them upwards, and pour them into the 20-24 ℃ hatchery half a day ahead of time, and then put them into the incubator. Pay attention to the fact that the eggs are not loaded on the chassis.

3. Heating

Light the biogas stove, heat the pot, raise the temperature of the pot and raise the temperature of the incubator. After heating, the incubator should be monitored and managed 24 hours a day, and the temperature of the incubator should be controlled according to the following time: 38.5 ℃ in the early stage (1-10 days), 38-38.5 ℃ in the middle stage (11-16 days), and 37-38 ℃ in the later stage (17-21 days).

4. Turn the plate and turn the eggs

At the beginning of hatching, the box temperature is high, high and low, so the eggs should be turned every 4-6 hours. The method is to change each plate up and down, and the position of each plate of eggs back and forth. In short, by turning the plate, the breeding eggs are consistent in temperature, hatching and shell.

5. Master humidity

Air humidity has a great influence on embryonic development, too much humidity will hinder the outward evaporation of water in eggs and affect embryonic development, and the abdomen of chicks will expand after coming out of the shell; if the humidity is too low, the moisture in eggs will evaporate too fast, and the embryo will develop too fast. the chicken is thin and weak after coming out of the shell, and it is not easy for the chicks to survive in these two cases. In general, the humidity during the incubation period should be controlled at about 60% in the early stage, 55% in the middle stage and 70% in the later stage. If the humidity is not enough, the water plate can be added at the bottom of the box to ensure the temperature and humidity to ensure that the shell is neat and easy to shell.

6. According to the egg

Egg management is a part of incubation period management. Its purpose is to find out whether the breeding eggs are fertilized, whether the embryonic development is normal and whether the temperature is appropriate, so as to find out the existing problems and improve the methods. Incubation period generally according to the egg 3 times, the first time (5-6 days), you can clearly see the eye point, no explanation is abnormal, you can pick it out; the second time (10-11 days), you can see blood vessels distributed in the whole egg; the third time (17 days), at this time, except the air chamber, the egg is all black, which is called "sealing the door". If you "seal the door" in advance, the temperature is on the high side and the temperature should be lowered, and vice versa.

Matters needing attention

From the ignition to the 13th day, the biogas stove must be burned continuously and must not be interrupted. if the biogas is insufficient, other energy sources must be used as a supplement.

After coming out of the shell, the chicks should be reared at a constant temperature of 32 ℃ for 3 days to improve the stress resistance and survival rate of chicks.