Select eggs. Try to use the preserved eggs within two weeks. The eggs are normal, moderate in size, uniform in thickness, uniform in color, and bright in color. The shorter the preservation time, the higher the hatching rate.

Disinfection is disinfection. Before flocking, it is generally sterilized by fumigation, that is, 15 g of potassium permanganate per cubic meter of space, 30 ml of formalin, and fumigation at 25°C to 30°C for 20 minutes to kill the eggs. Virus. Disinfection is generally performed in a sterilizer.

Temperature is the temperature. Temperature is the primary condition for hatching. Incubation temperature should be based on the development of the embryo to take a higher temperature in the early stage, the middle level, slightly lower in the later period, and a slightly higher temperature during the hatching period. Temperatures were: preheating eggs 6-8 hours before hatching, egg temperature 36°C-38°C, 1-7 days 38.8°C-39.2°C, 8-14 days 38.5°C-38.8°C, 15-20 days 38°C- 38.5°C, 21-24 days (ie shelling) 38.5°C-39°C

Wet or humidity. Humidity also plays an important role in the entire incubation process. If the humidity is insufficient, it will cause the embryo to stick to the shell, and it will cause difficulty in hatching. If the humidity is too high, it will easily cause poor absorption of yellow eggs in the chicks, resulting in poor physical quality and death. Suitable humidity should master the principle of two high and middle level, namely, the relative humidity in the early period is 60%-65%, the middle period is 55%-60%, the later period is 60%-68%, and the hatching period is 70%-75%.

Turn over eggs. In order to make the eggs heated evenly, the eggs must be turned manually or naturally. From the second day of hatching, the eggs are turned once every 2-4 hours, the angle of turning eggs is 180 degrees, and the turning is stopped on the 21st day. egg.

Let the air dry. Eggs should be air-dried at 38.8°C during the latter part of the incubation period. Normally, they should be dried once a day for 16 days. They should be washed twice a day for 21-24 days. The time to air the eggs can be controlled flexibly according to the situation. When the temperature drops to 35°C, the incubation continues.

Spray water. Spraying water is one of the key measures to increase the hatching rate. The water spray can make the eggshell crisp, the pheasant has a thick film on the egg shell, and the eggshell is firm. Therefore, it needs to spray water once a day for 21-24 days. The water temperature is about 35°C. After the water is dry, it will continue to hatch. Under the action of repeatedly confining the eggs and spraying water, the eggshells will be hard and crisp, which will help the chicks break through the shells.

Photo

That is, according to the egg. The first time the eggs are hatched 6-8 days, the main inspection eggs fertilization rate, according to the normal eggs can be found on the embryo's eye, red and blood color within the egg, no egg but no change, complete egg yolk The egg white is transparent, and it is necessary to remove the lean egg in time. The number of eggs depends on the specific circumstances, mainly to check the development of embryos and detect dead fetus eggs.

Blood Products

Blood Plasma Products,Blood Products,Human Rabies Immunoglobulin,Viral Infection

Sichuan Yuanda Shuyang Pharmaceutical Co., Ltd. , https://www.syimmunoglobulin.com