Freshly hatched chicks are small in size and have few villi. They are sensitive to temperature and cannot regulate their own body temperature. They are cold and heat-fighting. Without proper temperature, they cannot grow well or even die. Therefore, in the brooding work, it is important to grasp the necessary temperature control technology for brooding. 1 Brooding room The brooding room's thermal insulation performance is directly related to the temperature control effect. It requires the brooding room to be located in the south and facing the south, and the terrain is high and dry, with good sealing performance, and no thief wind invasion. The population has a buffer room, the door is installed with insulation curtains, the north wall windows are tall and small, the south wall windows are low and large, the roof is equipped with a vent hole, the wall head is equipped with a ventilation fan, the walls are provided with air intake holes, and the air intake holes are equipped with a wind screen and Gates allow gentle air flow and easy flow control. 2 Brooding methods 2.1 Brooding methods include ground level raising, high bed raising and cage breeding. The high-bed-type temperature-control effect is the most ideal. It can avoid cold and humid surfaces on the ground, and can avoid the temperature differences between different levels when caged. The activity of chickens is clear at a glance and the operation is convenient. Generally, the height of the bed is 60-80 cm from the ground, the width is 2.5 meters, and the length is 4-5 meters as a unit. 2.2 heating methods Heating equipment heating stoves, insulation umbrellas, infrared lights, electric heating plate and many other. The most economical and ideal method of warming is to use a heating stove to control the overall temperature and use a temperature-controlled umbrella or infrared lamp to control the local temperature. This method warms up quickly, controls temperature accurately, and has a good effect. Pay attention to the better sealing of heating pipes to prevent gas poisoning. 3 temperature test and into the young 3.1 test temperature into the young before the test temperature, check whether the amount of heating equipment is adequate, whether the placement is ideal, whether the temperature meets the requirements. It is common to have a suitable temperature gradient for the feeding level of the chicks. The room temperature can reach above 30°C, the temperature measurement point is on the four corners of the high bed, and the height is 5 cm away from the bed bottom, which is equivalent to the height of the head of the chick while standing. The temperature in the insulation umbrella can reach 35°C or more, the temperature measurement point is in the middle of the insulation umbrella, and the height is the same as the temperature measurement point at room temperature. Can only be used for brooding when the test temperature reaches the requirements. 3.2 Incubation When the time for hatching is determined, the brooding room should be warmed up and warmed up in advance to ensure that the temperature of the brooding room is between 30°C and 32°C and the brooding temperature is 35°C. When the chicks enter the room, they should Adjust in time according to the chick's adaptation. 4 Temperature control during brooding The brooding process refers to the chicks getting out of the shell until they are warmed up, usually about one month. In theory, the temperature control starts at 32°C to 35°C for 3 days, and then decreases by 1°C to 2°C per week until it reaches room temperature. However, due to the influence of various factors such as chicken breed, climate, and feeding and management level, the basis for providing the optimum temperature is mainly to look at the temperature of the chicken and generally grasp four aspects. 4.1 The activities are flexible, lively and lively. The sounds are pleasant, rhythmical and suitable for the temperature; the neck shrugs and the activities are not loved as low temperatures. 4.2 rest chicken rest, open mouth breathing, gasping, wings, neck extension, leg extension, away from the heat source is high temperature; uniform, orderly, quiet, part of the stretching wings for the appropriate temperature; get together, stand up to sleep, there is scream for temperature low. 4.3 Eating and eating materials are fast and positive. Gradually increasing feed intake is suitable for the temperature; eating slow and dull, feed intake is not increased or decreased to low temperature; drinking water is significantly increased to high. 4.4. Normal excrement of feces is in strips, in a stacked form, with no sticky feces; at low temperatures, the chicks will become soft and even diarrhea. 5 Ventilation and ventilation Insulation Ventilation and insulation are contradictory, and ventilation and air exchange must not be overlooked while emphasizing insulation. The chicks have fast growth, strong metabolism, high respiratory rate, high oxygen consumption, and many excretions. Only adequate ventilation can maintain indoor air fresh. 5.1 Natural ventilation Through the air intake holes provided in the wall and the air outlet holes installed in the roof, the intake air can regulate the gas flow, so that the room temperature and air quality can be balanced. Generally speaking, the natural ventilation air has a slow flow velocity, a small ventilation volume and a small influence on the temperature, and is a conventional ventilation method. 5.2 Forced ventilation The use of a ventilation fan installed on the wall to force external exhaust is an assault ventilation method used when the air quality in the brood room deteriorates. It has a large influence on the temperature, and should be increased at room temperature when used. The changes in room temperature can be grasped, can use short-term, multiple interrupted exhaust, to minimize the effect of ventilation on temperature. 5.3 Ensure indoor air quality When people enter the room from a fresh air environment outside, they can judge the air quality by feeling. If no abnormal feeling is normal, there is a sultry feeling that the oxygen content is low, and there is a high concentration of harmful gas such as an odor and a pungent odor such as ammonia gas. If the ventilation effect is not good, you should first remove the chicken manure, replace the litter, blindly increase the amount of ventilation will affect the temperature. In addition, the stocking density should be adjusted in time according to the growth and development of the chicken to ensure the dynamic balance of indoor temperature and air quality.