Chad A. Meier Jr., 17, is the last of three Escanaba teens sentenced in Menominee County for the July 2011 attack on three Angus cattle.
Two pregnant heifers were beaten so badly they had to be euthanized.
A 1,400-pound bull recovered but no longer can be used for breeding. It sustained broken bones, welts, and about 20 knife wounds.
Eighteen-year-olds Nicholas Leisner and Peter Sauve are already serving two- to four-year prison sentences for the incident.
The Daily Press of Escanaba reports that defense lawyer Steve Benson says Meier and his friends were "highly intoxicated" during the attack.