The "three control" and "three degrees" management points of broiler brooding period

The management of chicks directly affects the survival rate and future production performance of chicks. Therefore, in order to obtain the ideal brooding effect, in addition to the management of the early feeding period of the mild chicks in production, it is necessary to do the "three control" and "three degrees" work.

1 Three controls refer to the control of ventilation, light and disease in the house.

In the process of attaching importance to heat preservation, it is important not to neglect the ventilation of the brooding house. Although the chicks are small but the metabolism is strong, the chicks are polluted by high-humidity, high-density feeding conditions, and the air in the brooding house emits a lot of harmful gases such as ammonia and carbon dioxide due to breathing, feces and moisture. If the polluted air is not discharged in time, these harmful gases will continue to increase. When the concentration of harmful gases is large and stays in the house for a long time, it will affect the weight gain of the chicks and reduce the feed conversion rate of the chicks. It can cause respiratory diseases and other diseases, which can cause death. The purpose of ventilating the house is to remove harmful gases from the house and replace the fresh air, and the relative humidity in the house is not gradually increased. Therefore, the chick house should be ventilated at regular intervals. The correct way is: every day at 12 o'clock in the brooding period, the window on the sunny side is properly opened to allow the air to convect, and the window leaves are half-opened to prevent the cold wind from blowing the chicks. The window opening time is generally 0.5-1 hour.

In order to prevent the temperature from lowering, the room temperature can be increased by 1-2oC before ventilation, and the ventilation is completed and then lowered to the original room temperature. The purpose of controlling light is to promote chicks to eat and drink water, increase exercise, promote muscle and bone development, prevent diseases, and improve production performance. In order to promote the feeding and growth of chicks, generally use the 24 hours of light throughout the first three days, 20-7 hours of light in 4-7 days, and a 13-watt energy-saving light bulb for each 15 square meter brooding house is suspended 1.5 meters above the grid. The position can be stopped at night, and the light can be stopped for 1-4 hours at an irregular time to exercise the chick's ability to adapt to the darkness, avoiding the stress caused by the power outage and affecting the chick's sleep. Controlling the occurrence of diseases is an important guarantee for breeding chicks. Young chicks are small and have poor disease resistance. Once an epidemic occurs, the infection is fast, the mortality rate is high, and the loss is large.

After the chicks enter the brooding house, they should first use 0.01% potassium permanganate solution as the drinking water for the chicks to disinfect the gastrointestinal tract. In the pre-brooding period, the high-sensitivity drugs are generally administered according to the instructions and veterinary prescription according to the egg-based 19-year-old susceptibility test provided by the Ministry of Technology. In short, it is necessary to formulate strict anti-epidemic measures, rinse the utensils after feeding every day, and disinfect with disinfectant; pay attention to the hygiene of the brooding house and its surrounding environment; wet newspapers should be diligently changed to keep the air fresh; Feeds and drugs should be fed strictly according to the standard. It is strictly forbidden to feed the moldy and spoiled feed to prevent poisoning of the feed. If there is a diseased dead chicken, you should promptly find the veterinarian to dissect, diagnose, prevent and cure, and cure the disease, prevent disease, prevent disease, and die. The chicken is buried or burned, strictly disinfected, and the source of infection is completely eliminated.

2 Third degree means to grasp the temperature, humidity and density.

First of all, the appropriate temperature is the key to raising chickens. The temperature requirements for chicks are: 33-35oC for 1-3 days, 30-32oC for 4-7 days, and 2-3oC for weekly after 7 days. Until it drops to 22oC. In actual production, whether the temperature is suitable, use as little as possible to measure with a thermometer, it is best to watch the performance of the chicks. When the temperature is too high, the chicks are scattered, the mouth is gasping, the appetite is reduced, and the amount of drinking water is increased. When the temperature is too low, the chicks are uneasy to sleep, and they make a "squeaky" sound. They are often crowded together and even piled up. A little longer time causes a large number of chicks to die. When the temperature is right, the chicks are scattered in the form of a star, which is comfortable and lively, with a normal diet and good spirits. Practice has proved that maintaining proper brooding temperature has obvious effects on controlling chick white rickets, promoting the absorption and utilization of yolk sac, and improving the survival rate of brooding.

Second, maintain proper humidity in the chick house. The humidity of the brooding house should be indicated by a dry hygrometer. The ideal humidity is: the relative humidity of the first week is 65%-70%. If the humidity is too high, the harmful gas increases, which is beneficial to the survival and parasitism of pathogenic microorganisms. The development of eggs, induced coccidiosis, aspergillosis, etc., make chicks susceptible to various diseases. If the humidity is too low, the house is dry, the dust and feathers are flying, the water in the chicken body is lost, the chick's hair is crisp, the toes are dry, the appetite is weak, the chicks are vulnerable to cold, and the respiratory diseases and feathers are poorly developed. The correct way is to spray a small amount of water on the walls and walkways around the house, or put a water basin on the stove to evaporate water to achieve the purpose of adjusting humidity.

In addition, attention should be paid to the density of the chicks. Reasonable stocking density is an important condition for ensuring the healthy growth and development of the flocks, because the density is directly related to the occurrence of air, humidity, sanitation and nausea in the brooding house. When the density of chicks is too large, the air in the brooding house is dirty, the smell of ammonia is large, the humidity is high, the sanitation environment is poor, the food is crowded, the water is grabbed, the hunger is uneven, the number of chicks is increased, the cockroaches are serious, and it is extremely easy. Onset. The low density of chicks is low, although it is beneficial to the growth and development of chicks, it is not conducive to the full utilization of equipment and the rational use of labor, resulting in higher feeding costs.

Therefore, it should be adjusted in time when the chicks are not properly stocked. In general, it is 28/m2 in the first week. Broiler brooding is a three-point technique and a seven-point management. If there is no management success, the failure of the farming results is destined. Some breeding professional households only know the medication, but they don’t know the management points. The medicine can't replace the feeding management. Only careful and meticulous management of feeding can effectively improve the survival rate of chicks, thus ensuring the survival rate of the slaughter and increasing the income of farming.