The key to the pre-emergence is to implement the inspection of the preparation of thebroiler chicken cage: cleaning and disinfection during the empty period. Then seal and then ventilate. Check the operation of the feeding equipment to meet the needs of providing a comfortable growing environment for broilers, such as heating, ventilation, water supply, feeding line and other equipment, especially the warm water for the first week.

Eliminate weak chicks. 1% to 3% can be forcibly eliminated within the first week. If the price of the chicks is low, you can eliminate more. If the price is too high, you can eliminate 0.7% to 1%. Be sure to pay attention to immunity and stress. Pay attention to the focus of feeding management during the immunization period. It is necessary to reduce stress, but not to create stress, such as raising the temperature of the house andautomatic poultry farming equipmentbefore immunization.

The key to 8 to 14 days of age, at this time gradually increase the amount of ventilation, pay attention to the contradiction between ventilation and temperature, pay attention to the control of Newcastle disease after immunization. The temperature inside the house is gradually reduced according to the constitution and season. Let the humidity strive to reach the standard. Increase the ventilation according to the season and pay attention to the ventilation position. Time and light intensity adjustment to reduce sudden death. Adjust the density according to the season.

The key to 15 to 21 days of age, after 15 days, the key is the ventilation problem, which many farmers will ignore. For example, how to change the ventilation mode, we must pay attention to the body temperature of the chicken body; the front end, the middle end, and the rear end of the chicken house. The temperature, the wind speed of the chicken back, the direction of the wind, and the humidity are all recorded. Ventilation is not good, cold and hot, more than 3 days of respiratory symptoms will appear; super 3 days airbag turbid; super 10 days to prepare to eliminate it. Newcastle disease in broilers is 10 to 15 days old, and bird flu is 21 to 28 days old. So the key is how to protect the immune gap, and this determines whether the body is healthy in the fourth week. At the same time, this time period should focus on the immune response of infectious bursal disease, reducing immune stress as much as possible.

The focus of 22 to 28 days of age, the core work of the fourth week is the mastery of ventilation and temperature checkpoints, and this period is also the immune blank period of bird flu, so we must adjust the contradiction between ventilation and temperature to achieve stability. Filtration, reducing ups and downs, even the temperature difference of 5 °C will become the tipping point of the disease.

The key to 29 to 35 days of age, if the previous management is not good, the loss will break out during this period. Some large-scale chicken farms can achieve a survival rate of 99% in the first 21 days, but if there is a problem at this time, it will cause a very large loss. Many times the flock is ill because it creates opportunities for the pathogen. The key to this week is the avian flu, Newcastle disease and chicken body temperature, and prevent overfeeding and diarrhoea. The most important thing before 35 days is ventilation, and it focuses on the control of the body temperature of the chicken formed by temperature, humidity and wind speed at the back of the chicken. In order to raise chickens in winter, it is necessary to consider the direction of the wind. The problem of many farms is that the wind speed is too high or the wind direction is wrong, and it is directly blown to the chicken body to cause cold stress. At the same time, if the temperature changes after ventilation, it should be adjusted accordingly.

At 35 days of age, I will pay attention to the prevention and control of diseases in the intestinal tract. On the other hand, it is necessary to prevent emergencies. Standardized farms are most afraid of power outages, and power outages will cause considerable casualties.