MANAGEMENT

Detailed explanation-1: -Ear-notching helps identify a pig’s litter and which one of the litter it is, giving each pig a unique identity number. Notches are placed in one of five locations in the pig’s right ear-to show the litter number-and in one of three locations in the left ear-to show the individual pig number.

Detailed explanation-2: -There are five designated zones (1, 3, 9, 27, and 81) in the Litter Ear and three designated zones (1, 3, and 9) in the Individual Pig Ear. In zones 1, 3, 9, and 27, there can only be two notches, thus if there are two notches in all 4 zones, that would represent Litter 80.

Detailed explanation-3: -Litter Mark: The right ear is used for the litter mark, and all pigs in the same litter must have the same notches in this ear. The right ear is on the pig’s own right. The litter mark ear is divided into five sections, and each section has a numerical value, either 1, 3, 9, 27, or 81 (Figure 2).