what do ear notches in a pigs left ear indicate? piglet number litter number pen number sow number

what do ear notches in a pigs left ear indicate? piglet number litter number pen number sow number
Answer
Brief Explanations:
In pig farming, ear notching is a common identification method. The left ear notches are typically used to indicate the litter number (the group of piglets born from the same sow at the same time), while the right ear is often for piglet number. So the correct option related to left ear notches is litter number.
Answer:
B. litter number