Chick body temperature regulation ability is poor, lower than adult chicken body temperature 3 °C, chicks thin villi, thin skin, less subcutaneous fat, poor insulation capacity, body temperature regulation function to be gradually improved after 2 weeks of age, so maintain proper temperature in the fall brooding It is essential for the health and normal development of chicks.
It is directly related to the appropriate temperature of the environment for the chicks to feed on the amount of drinking water, various physiological activities in the body, whether the digestion and absorption of feed is normal, and the resistance to diseases. When the temperature is too low, the chicks are chilly and intensive, affecting the absorption of yolk, affecting the ability to resist disease, and in some cases the occurrence of cold diarrhoea. In severe cases, they are squeezed together to cause massive injuries and death. If the temperature is too high, it will affect the normal metabolism of the chicks, loss of appetite, weak constitution, developmental delay, causing spasms, but also susceptible to colds and respiratory diseases.
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 thermometer's display. You should pay attention to the chick's performance temperature. When appropriate, the chicks are evenly spread in the brooding room, lively spirits, good appetite, moderate drinking water, gathering near the heat source when the temperature is low, and buzzing; if the chicks are overheated, keep them away from heat, spread their wings and wheezing. .
In addition, the temperature control should be flexibly controlled according to the changes of the flock and the weather. For the strong chicks, the temperature can be slightly lowered. Within the proper temperature range, the temperature is lower and the temperature is higher, and the chicks have a large feed intake. Big, fast growing. Because of the small amount of chick activity at night, the temperature should be 1°C-2°C higher than during the day. The temperature in the fall of the cold spell should be appropriately increased.
When severe irritations are caused by scorpions, vaccinations, etc., brooding temperatures need to be increased to reduce losses. When the chick population is in poor condition and is in a state of illness or illness, the temperature should be raised appropriately.
The heating time in autumn should be longer. In order to welcome the coming winter, the temperature should be appropriately lowered to improve the chicken's adaptability to temperature. It is generally reduced by 0.3°C-0.7°C per day, or it can be reduced by about 3°C ​​per week. When the temperature of brooding is reduced to the lowest temperature during the day, the heating during the day can be stopped. When the temperature of the brooding at night falls to the minimum temperature at night, the night heating can be stopped.
At present, the ideal heating method is the use of mantle, fire pit or ground flue. Because the brick absorbs more heat and the heat dissipation is relatively stable, the coal-fired port should generally be built outside the wall.
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