Common method for swine identification?

• A. Ear notching
• B. Ear tagging
• C. Tattooing
• D. Branding

Answer: (A)

Ear notching is the standard method used for identifying pigs. It provides a permanent, highly visible mark that can be read from a distance, which is crucial for tracking animals through birth, growth, and breeding records. The practice uses a specialized tool to remove small, coded wedges from specific parts of the piglet’s ears, with the notch pattern conveying litter information and individual pig identity. This permanence and ease of recognition make it more reliable than other methods. Ear tagging can be lost or damaged as pigs move and rub against pens or each other, tattooing requires close inspection and can fade or become unreadable, and branding is invasive, painful, and impractical in modern swine operations.