Chemical Used for Fumigation of Poultry House

Correct Answer: KMnO₄ & Formalin

The standard fumigant for poultry houses is a combination of Potassium Permanganate (KMnO₄) and Formalin (Formaldehyde solution).

Fumigation Procedure

• The reaction between KMnO₄ and formalin produces formaldehyde gas, which is a potent broad-spectrum disinfectant that destroys bacteria, viruses, fungi, and spores.
• The poultry house is closed and sealed for several hours after fumigation.
• Fumigation is done between flocks to reduce pathogen load before introducing new chicks.

Ratio Used

• Per 2.83 m³ (100 cubic feet) of space: 35 mL formalin + 17.5 g KMnO₄ (or as recommended)
• The formalin is placed in a ceramic/clay container first; KMnO₄ is added second (the reaction is exothermic and releases gas immediately).

Safety Note

Formaldehyde is toxic to humans and birds. The house must be properly ventilated before re-entry and before chick placement (minimum 24–48 hours after fumigation).