What is often a primary reason for clipping hair around injection sites in livestock?

Clipping hair around injection sites in livestock is primarily done to prevent infection. When hair is present at the site of an injection, it can trap dirt and bacteria. Removing hair minimizes the risk of microbial contamination, which is crucial for maintaining the health of the animal and ensuring that the vaccination or medication is administered effectively.

While facilitating quicker healing or enhancing product absorption are relevant considerations in veterinary practice, the main focus during initial procedures like injections is on creating a clean environment to prevent complications that could arise from infection. Visibility of the injection site may be improved as a secondary benefit, but the key purpose remains the prevention of infection to safeguard both the animal's health and the efficacy of the treatment administered.