At present, China's chicken industry is more and more developed, from the original ground breeding, network raising, to the current cage. Now, the author will focus on the management of the brooding period in caged chickens as well as the early stage of entry and exit.
First of all, the site should be completely disinfected 4 days before the start of the brood. After the disinfection is completed, the site will be closed and all personnel are prohibited from coming and going.
Prepare before entering young
Controller commissioning, data input and equipment commissioning ensure that the equipment is safe and accurate.
Pre-heating and pre-wetting: Before entering the chicks, after the animal husbandry and veterinarians set the parameters for the equipment operation, the boiler maker should follow the boiler's operating procedures and must keep the space of the poultry house at 35°C. The greenhouse humidity meter is used to measure the humidity inside the chicken house. For 55%-70%, the humidifier is turned on with insufficient humidity, and the ventilation system is opened when the humidity is too high.
Water preparation 1 day before hatching: Place two open food trays in each cage, add 500 grams of feed to each open dish, and wait until all the feed in the open tray has been eaten, then withdraw. According to the material line, the material line must be kept to the minimum and it should not be left unconnected. Open the feed line switch and inject material into the feed line. Add water, first adjust the water line straight, in the water line full of water, the water line nipple from the bottom of the cage 12 cm, while the water line pressure adjustment. Two hours before hatching, the brooder fills up all waterline sinks.
temperature
If the temperature in the house is too high, the chicks will be far away from the power supply and pant. They will perform quietly and their wings will open and droop. If the temperature inside the home is too low, the chicks will gather around the heat source, get together and behave uneasy and noisy. The chicks are evenly distributed at the right temperature and exhibit a variety of behaviors (eating, drinking, resting, and playing).
humidity
Into the house to observe and measure (before and after the various points), view the controller display and history. Humidity requirements: 60% before 20 days, 65% for slaughter from 21 days, and 5% for actual humidity and target humidity. In the case of insufficient humidity, an automatic humidification system must be turned on to maintain the humidity, and it must be ensured that the droplets do not fall on the chicken. If the humidity is higher than 5% of the target, reduce the humidity by increasing ventilation.
illumination
The darkest place in the brooding house is not less than 20 lux. When lighting program is controlled, it is necessary to fix the lamp off time. Adjust the lighting time to adjust the lighting time.
ventilation
The aim is to maintain good air quality, generally not less than 19.6% for oxygen, less than 3000 mg/l for carbon dioxide, less than 10 mg/l for carbon monoxide, less than 10 mg/l for ammonia, and less than 3.4 mg/m3 for respirable dust. The ventilation requirement for chicks of different ages: Before 14 days of age, the wind speed through the back of the chicken should be as small as possible, less than 0.2 m/s, and the wind speed at 15 days and 21 days should not exceed 0.51 m/s. The wind speed of 22 days to 28 days should not exceed 1.02 meters/second. The wind speed after 29 days of age must not exceed 6 m/s.
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