Explanation

Certain poisonous substances in the body can delay the process of putrefaction. They include:

• Carbolic acid (Phenol)
• Arsenic and antimony
• Strychnine
• Nux vomica (plant)
• Zinc chloride, ZnCl2
• Morphine
• Aconitine

Putrefaction is referred the breaking down of the body of an animal post-mortem