According to the clamshell situation at the time of dropping, sum up and lay down the time for laying eggs. Under the premise of normal hatchery technology, the uniformity of hatching will be affected due to the difference in the age of laying eggs and the storage period of eggs. In order to improve the uniformity of hatching, under normal circumstances, the eggs in the early and late stages of laying, and the eggs that have been stored for more than 7 days should be hatched 6 hours in advance. When the incubation temperature rises to the set value after the egg is laid. Fumigate with 28mL/m3 formaldehyde and 14mL/m3 potassium permanganate for 20min (or turn on the sterilizing lamp for 30 seconds). (Escape embryonic eggs that have hatched 24-96 hours of embryonic age.)
Incubate whole batches, after hatching the eggs in the incubator (with eggs) dump 28mL/m3 of formaldehyde and 14mL/m3 of potassium permanganate fumigation for 20min.
Settled: Settling on the 19th day of hatching and picking out stillbirth. Put the embryo eggs in the upper and lower positions of the hatching machine and transfer them to the lower and upper front positions of the hatching machine. After dishing, the incubator was cleaned in time and fumigated with 46 mL/n3 formic acid for 20 min.
Smoked chicken: Observe the hatching machine. When starting the chicken, use 25mL/min of formaldehyde in the hatcher to allow it to naturally evaporate and sterilize.
Chicken: After most of the chickens hatched, 5% of the chickens began to have chickens after the hairs were dry, and the count was good. Detailed records, picking chickens in time after picking chickens. Clear healthy chicks and weak chicks.
Storage: After the end of the selection, the chicks were placed in a well-ventilated environment with a temperature of 25°C and a temperature of 50%. The chickens were sprayed with water according to the dehydration conditions.
Sweeping the stalls: When the hatching is over, take out the eggs, count the number and record them in detail, and then thoroughly clean the hatchers. In the above several operating points, the actions should be light, steady and fast.
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