In autumn, the temperature is low and the temperature difference between day and night is relatively large. Therefore, the younger the chick is, the higher the temperature stability is. The temperature difference in the initial day should be controlled within 3°C, and the temperature difference should be controlled within 6°C in the later period of brooding, so as to avoid significant loss of production due to temperature instability. To judge whether the temperature is appropriate, you can't just look at the display of the thermometer. You should observe the performance temperature of the chicks. When appropriate, the chicks are evenly spread in the brooding room. The spirit is lively, the appetite is good, the drinking water is moderate, and when the temperature is low, it is near the heat source. Sound; chicks away from heat when overheated, stretch their wings and wheezing, squeaking.
In addition, temperature control should be flexibly controlled based on changes in the flock and the weather:
1, can be slightly lower for some healthy chickens, in the appropriate temperature range, the lower the temperature is more effective than the higher temperature, then the chicks feed intake, exercise, fast growth.
2. At night, because of the small amount of chick activity, the temperature should be 1°C~2°C higher than during the day.
3, when the autumn cold current hits, the temperature should be properly increased.
4. When severe stimulants are caused by deafness and vaccination, it is also necessary to increase brooding temperature to reduce losses.
5. When the chick population is in poor condition and is in a state of illness or illness, the temperature should be raised appropriately.
Most blood collection tubes contain an additive that either accelerates clotting of the blood (clot activator) or prevents the blood from clotting (anticoagulant). A tube that contains a clot activator will produce a serum sample when the blood is separated by centrifugation and a tube that contains an anticoagulant will produce a plasma sample after centrifugation. Some tests require the use of serum, some require plasma, and other tests require anticoagulated whole blood.
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