In cattle, what is the typical injection site for most vaccines and antibiotics?

• A. Subcutaneous injection
• B. Intravenous
• C. Intramuscular
• D. Intra-arterial

Answer: (A)

Subcutaneous administration is the typical injection site for most vaccines and antibiotics in cattle. Delivering medicine into the loose tissue under the skin provides reliable absorption while minimizing tissue damage to muscle, which helps protect meat quality and reduces carcass blemishes. In large animals, the neck region is usually chosen so injections are away from valuable muscle areas and easy to administer. Intravenous or intra-arterial routes require direct access to blood vessels and are not practical for routine vaccination, and intramuscular injections can cause more muscle damage and carcass concerns, making subcutaneous the preferred, safer option in most cases.