Tractate Bekhorot - Chapter 2 - Mishnah 2

All consecrated animals whose permanent physical blemish preceded their consecration and were then redeemed:Are subject to the law of the firstling and to the priestly gifts, And when they become like hullin [by being redeemed] they may be shorn and may be put to work. And their young and their milk are permitted after they have been redeemed. And he who slaughtered them outside the sanctuary is not liable. And they do not render what is substituted for them [holy]. And if they died they may be redeemed, except for the firstling and the tithe of cattle.