INC = total income, INCP = income per 1 kg of cold carcass weight
2
Teeth = no. of permanent teeth (0 = temporary teeth, 1 = a pair, 2 = 2 pairs, 3 = 3 pairs of permanent teeth)
3
MBS = marbling scores (1 = devoid, 2 = traces, 3 = slight, 4 = moderate, 5 = abundant)