After the chickens have been transferred out or eliminated, the houses will be subject to different levels of pollution, and the management of empty houses needs to be strengthened to reduce or kill potential bacteria, viruses and parasites, and to isolate the spread of pathogenic microorganisms between the batches. Turning into the flock and surrounding chickens to provide a safe environment, based on the guarantee of empty time (at least 20 days), we must focus on the management of key links such as house cleaning, washing, and disinfection.
First, the chicken house cleaning management
The cleaning time of the chicken house should be as early as possible. Generally, it should be started within 1-2 days after the last batch of chickens are transferred out or eliminated: 1 Clean the feed tower, feed storage room and feed tank to avoid feed wastage; 2 The chicken manure in the chicken house Clearance and cleaning outside to ensure flushing effect; 3 Clean the dust, cobwebs on the roof, trusses, beams, walls, fans, air inlets, vents, etc. in accordance with the principle of top-down; 4 pairs of drinking water systems (e.g. drinking water pipes, pressure reducing valves), power supply systems (distribution boxes, switches, wires), cages and other equipment and facilities for cleaning; 5 the package of fans, electrical equipment control switches, lock boxes, etc. .
Do not remove the facilities and articles outside the house when finishing the house, and arrange, rinse, and disinfect the house. If facilities or items must be removed, strict cleaning and disinfection should be performed before removal to prevent bacteria or viruses from contaminating other areas.
Second, chicken house irrigation management
The house can be washed 2 to 3 days after finishing the house. According to the principles of first up, down, first in and out, the flushing effect and working efficiency can be guaranteed, and the cost can also be saved. The order of flushing is: ceiling, cage, feed chute, dung sheet, air inlet, wall, ground , storage rooms, restrooms, operation rooms, ditch, to prevent the already washed area was re-contamination, corners, ditch and other corners are the focus of washing, to avoid the formation of "dead ends"; rinse wastewater discharged through the back of the house Leave home and clean up or ferment in time to prevent it from polluting the area and the environment of the house.
Clean the area where the drinking water pipe and cage contact, trunking, feed trough, motor, fan, etc. are not washed or difficult to flush. Workers entering the coop must wear clean work clothes and work shoes; use clean water sources and clean rags during scrubbing; timely clean the rags; sewage from the rags cannot be discharged or splashed in the house, and should be discharged outside the house.
After the flushing is finished, the work effect shall be inspected. Check the storage room, chicken cage, fecal board, ditch, equipment control switch, brake box, exhaust outlet, etc. (at least 5 for each part) Above), to ensure that there is no residual feed, chicken manure and chicken feathers and other dirt. For unqualified flushes, immediately re-rinse and recheck until they meet the requirements.
Third, the shed disinfection management
1. Drinking water pipe disinfection. The chicken house is washed on the same day and is soaked in 0.04% Anfu disinfectant for at least 30 minutes. It is best to complete the fumigation after the chicken house is opened and rinse with clean water.
2. Flame disinfection. After the chicken house is washed and dried, it is mainly applied to high temperature parts such as cages and grounds to kill various microorganisms and eggs.
3. Spray disinfection. On the day of the flame disinfection or on the second day, the exterior wall was sprayed with white ash and disinfected. The roofs, floors, cages and equipment inside the house were sprayed and disinfected with quaternary ammonium salts, complex aldehydes and other disinfectants. Under special circumstances, insecticides can be sprayed to destroy the parasites and eggs that remain in the house.
4. Fumigation. On the same day of spraying and disinfection, the required objects and tools are moved into the house before disinfection, and the inlet, outlet, doors, windows, and fans of the house are sealed, and 21 g/m3 bleach and 42 ml/m3 formaldehyde solution are fumigated. The fumigation time is more than 24 hours, and 1 to 3 days before entering the chicken, ventilation and ventilation can be performed, and the fumigated residual medicine can be cleaned and rinsed.
5. Microbiological monitoring. In order to confirm the disinfection effect, microbiological monitoring can be conducted. If the requirements cannot be met, the chicken house needs to be sterilized again. The details are shown in the following table.
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