Swine producers have a Universal Ear Notching System to aid in individual pig identification. Many of your county, regional, state, or national shows rely on this system as a method to identify pigs on entry forms.

In this universal system, the pig's RIGHT EAR is used to identify the LITTER NUMBER. All pigs born in the same litter must have the same notches. The pig's LEFT EAR is used for the INDIVIDUAL NUMBER, so each pig in a litter will have a different set of notches.

The Rules: Only 2 notches per section (except for the tip indicating #81)

Can you identify the following ear notches? Hint: Highlight the "Answer" region to view the correct answer.