What are the correct methods for disinfection with chickens present in the coop?

In the process of chicken production and farming, disinfection is a very important part of the environment. Many farmers are still unfamiliar with the concept of chicken coop disinfection. Today this article provides a detailed introduction to chicken coop disinfection procedures, as follows.

Cleaning and disinfection inside the chicken coop

Cleaning and disinfection inside the chicken coop is carried out in four steps: "one sweep, two rinses, three sprays, four empty the coop."

1. The first step, "one sweep." Thoroughly remove and clean up all debris, chicken manure, spider webs, feathers and so on inside the chicken coop.

2. The second step, "two rinses." Use a clean water pump or high-pressure pump to draw clean water and thoroughly rinse the chicken coop from top to bottom and side to side (including walls, brick columns, windows and floor) until clean.

3. The third step, "three sprays." Use a clean water pump to draw disinfectant water and thoroughly spray the chicken coop from top to bottom and side to side until water drips, generally spraying at least 300 jin of water per 100 sq m of chicken coop.

4. The fourth step, "four empty the coop." After spraying the disinfectant, the chicken coop must be left empty for 3—5 days to let it dry naturally, then switch to another disinfectant solution for spraying, or use potassium permanganate and formalin for fumigation.

Note: If the chicken coop has had infectious bursal disease, use 5% formalin spray instead (repeat the third step).

The general disinfection procedure for a chicken coop is arranged as follows: after cleaning up the chicken manure, rinse with water until clean, and after drying, sprinkle the ground and the wall up to 1 m high with 2%-3% caustic soda. After 1—2 days, rinse with water and after drying, spray with 0.3% disinfectant solution. After 1—2 days, spray with 0.1% diquaternary ammonium iodine (or 2.8 disinfectant diluted in 300 jin of water). After 1—2 days, sprinkle the ground and the wall up to 1 m high with 20% quicklime water. After leaving it empty for 3—5 days, bring in the chicks.

Disinfection of the brooding room

After the disinfection procedure specified in item 1 is completed, and before the chicken coop has dried, use formalin (formaldehyde) and potassium permanganate fumigation:

1. Formalin : potassium permanganate = 2:1.

2. Per cubic meter of space: 25 milliliters of formalin, 12.5 grams of potassium permanganate (method for calculating cubic space: length * width * height, unit: m).

3. Use 2—3 porcelain bowls per brooding room. Put the potassium permanganate into the porcelain bowl, then immediately pour in twice the amount of formalin.

4. Close the doors and windows of the brooding room tightly and seal it. After 24 hours, open the doors and windows for ventilation.

5. Precautions

① The container holding the formalin can only be a porcelain bowl or an earthenware bowl; wooden or plastic products must not be used.

② When pouring in the formalin, be sure to keep your head, face and hands as far away from the porcelain bowl as possible to prevent the liquid from splashing out and injuring people.

③ After pouring in the formalin, people should leave the brooding room immediately and close the doors and windows properly.

④ A brooding room that has undergone fumigation disinfection must be left empty for 2—3 days before chicks can be brought in.

Disinfection outside the chicken coop

First remove the weeds and chicken manure around the chicken coop. After the chickens are buried in a central pit or burned, on a sunny day sprinkle with 2—3% caustic soda water or 20% quicklime water.

Disinfection of tools

First wash the tools clean with water, then soak them in disinfectant water for more than half an hour. After drying in the sun (or air-drying), move them into the disinfected chicken coop.

Disinfection of the workroom

The workroom is the place where feed, rice husks and miscellaneous items are stored, and pathogens can easily survive in such a place. After raising a batch of chickens, move the miscellaneous items out, sweep it clean, and spray it with disinfectant for disinfection.

Disinfection of equipment used for vaccination (disinfectant water must not be used for disinfection)

Syringes, eye-drop bottles, wing-web vaccination needles and so on: first wash them clean with water, then boil for 30 minutes, and air-dry for later use.

Disinfection with chickens present

Disinfection with chickens present means disinfecting the air in the chicken coop while chickens are inside, using a low-concentration, non-irritating or mildly irritating disinfectant solution for spray disinfection. Benefits of disinfection with chickens present: it can kill pathogenic microorganisms in the air or attached to chicken feathers. In addition, spray disinfection can also increase the air humidity in the chicken coop, reduce dust, and lower the temperature on hot summer days. The operating methods and precautions for disinfection with chickens present:

1. Spray disinfection with chickens present (summer: when the temperature is high at noon, carry it out once every 1 to 2 days)

① The sprayer must be washed clean; it is best to use a dedicated sprayer.

② In cold weather, use warm water, which can reduce stress in the flock.

③ Choose a disinfectant with relatively low irritation.

④ The concentration of the solution must be sufficient.

⑤ Disinfection with chickens present is to disinfect the air, so the nozzle must be at least one meter above the chickens, and the nozzle must point upward.

2. Vinegar essence fumigation method

For every one thousand chickens, prepare 4—6 small iron cans and a certain amount of vinegar essence. Method: mix 1 liang of vinegar essence with 1 kg of water, put it in an easy-open can, place it on a coal stove, and distribute it evenly throughout the chicken coop so that the vinegar essence water naturally evaporates.