Classification of disinfectants:

Disinfectant may be broadly classified into two groups:

a. Non chemical

(A) Sunlight (B) Direct flame (C) Heat from different sources: most heat obtained from boiling and steam (D) Free air access

b. Chemical disinfectant are of three type

• Gaseous
• Sulphur dioxide gas
• Chlorine gas
• Formaldehyde gas
• Liquids
• Phenol
• Formalin
• Cresol
• Phenyl
• Solid
• Bleaching powder
• Quick lime

Following are the some disinfectant used in animal shed:

1. Hot water: If infective material such as clothing, instrument etc. are kept emerged in boiling water most of the germs are get killed in about 10 minutes.
2. Sodium carbonate: It is mainly dissolve in boiling water and used as an effective cleaning agent
3. Chloride of lime: It is available in white powder form in market. 1kg of lime mixed with 25 liter of water makes a very good deodorant.
4. Potassium permanganate: It is used dissolved in water and has little action as a disinfectant.
5. Mercuric chloride: In a solution of one thousand parts of water acts as strong gas disinfectant. It should be used with great precaution
6. Lysol, Cresol or Phenol: In a 5 % solution, it is a good disinfectant
7. Formalin (Formaldehyde 40 %) As a 5 % solution in water, it is a good disinfectants chemical, which help to clean the shed easily
8. Bleaching powder: It is also another good disinfectants chemical, which help to clean the shed easily.