Healthy chick fluff is neat and clean, shiny; the abdomen is flat and soft; there is no bleeding trace on the umbilicus, it heals well, and it is covered with fluff on tight and dry; the fluff is sick and filthy, lacking luster; the abdomen is swollen and prominent, and the umbilicus is prominent. There are bleeding marks, poor healing, moist around, and no villus coverage.
Healthy chicks are lively and active, with great eyes and strong feet; the sound is loud and brittle; the touch is sturdy, full, and struggling; the sick chicks shrink their heads, stand still, are afraid of cold; screaming; touch thin Relaxed, struggling.
3, chick weight
The weight of healthy chicks is in line with the standard of the breed. The size of the chicks is different due to the variety and type. Generally, the size of the chicks is about 40 grams, and the laying hens are 36 to 38 grams. The young chicks are too heavy or too light, and the chicks are swollen with yolk. Absorbed poorly overweight, individuals are small and underweight.
4, shelling time
In the case of normal hatching, the time of hatching is relatively consistent and concentrated. Usually, hatching starts at 20 hours to 20 days after hatching, peaks at 12 days and 12 hours, and hatching ends at 21 days. Too early or too late to hatch, the time of hatching dragged very long, and there were some unbroken shells on the 22nd day of hatching.