Useful life of breeding flockram should not surpass 4 years according to inbreeding increment.
从近交系数增量考虑，育种群公羊使用年限最多不应超过4年。
2
And he shall bring his trespass offering unto the LORD, a ram without blemish out of the flock, with thy estimation, for a trespass offering, unto the priest.
也要照你所估定的价，把赎愆祭牲就是羊群中一只没有残疾的公绵羊牵到耶和华面前，给祭司为赎愆祭。
3
And when thou shalt have made an end of the expiation thereof, thou shalt offer a calf of the herd without blemish, and a ram of the flock without blemish.