There is a big temperature difference between day and night in early Spring Festival Evening, autumn and winter, so we should pay attention to controlling the constant temperature. Too high or too low temperature will affect the weight of the first weekend. The weight of chicks should be 4 times that of 168 hours when they enter the house. If this standard is not reached, it will affect the growth and development of broilers for life. The standard position for measuring the indoor temperature of the henhouse should be between the aisle and the wall, between two heat sources, and the height should be the same as the back of the chicken. It can't be judged only by aisle temperature, but it is not an absolute standard to measure temperature. In the actual feeding process, judging whether the temperature is appropriate depends on the state of the chicken. At the right temperature, the sheep scattered. Generally, there are 20 ~ 30 chicks in a group, and different groups of chicks move with each other, and their calls are crisp. When the temperature is too high, the chicks don't bark, open their mouths and gasp, and their heads and wings droop away from the heat source. When the temperature is too low, the chicks will gather near the heat source and make a piercing cry. Thief wind, uneven lighting and external noise can also cause the phenomenon of getting together, so we should carefully observe and distinguish them. Chickens need different temperatures in different weeks, and the suitable temperature for each week is as follows:
The first week is 65438+33℃ for 0 ~ 3 days and 32 ~ 30℃ for 4 ~ 7 days.
28 ~ 30℃ in the second week
The third week is 25 ~ 27℃
The fourth week is 22 ~ 25℃
After the fifth week, 20 ~ 265438 0℃
If the temperature exceeds 37℃ for more than 3 hours in the first week of brooding, it will affect the growth and development of chicks throughout their lives. The daily cooling rate shall not exceed 0.5℃, and the upper limit temperature shall be adopted at the beginning of each week. After the fifth week, the temperature is about 265438 0℃, which is very beneficial to weight gain and feed conversion rate. In the process of feeding, the relationship between temperature and oxygen supply in the house should be properly handled. The temperature in the house should not be too low when ventilated, and the temperature control cannot be solved without ventilation or less ventilation, which is easy to make the house lack of oxygen. Therefore, when ventilating, it is necessary to raise the temperature and control the constant temperature first to prevent the temperature difference from being large and make the chicken catch a cold. The principle of mastering temperature is: it should be high in the early stage and low in the later stage; Weak chickens should be high and strong chickens should be low; Small groups should be high and large groups should be low; Cloudy days should be high, sunny days should be low; It should be high at night and low during the day; Pay attention to weather change, night management, thief wind and temperature measuring position.