Bekhorot 14A

מתני׳ כל הקדשים שקדם מום קבוע להקדשן ונפדו ⁠— חייבין בבכורה ובמתנות, ויוצאין לחולין ליגזז וליעבד, ולדן וחלבן מותר לאחר פדיונן.

Mishnah: All sacrificial animals in which a permanent blemish preceded their consecration do not assume inherent sanctity and only their value is consecrated, and once they were redeemed, they are obligated in the mitzva of a firstborn, i.e., their offspring are subject to being counted a firstborn, and in the priestly gifts of the foreleg, the jaw, and the maw, and they can emerge from their sacred status and assume complete non-sacred status in order to be shorn and to be utilized for labor. And their offspring and their milk are permitted after their redemption.

והשוחטן בחוץ פטור, ואין עושין תמורה, ואם מתו ⁠— יפדו, חוץ מן הבכור ומן המעשר.

And one who slaughters them outside the Temple courtyard is exempt from karet, and those animals do not render an animal that was a substitute for them consecrated. And if these animals died before they were redeemed, they may be redeemed and fed to dogs, and they do not require burial, except for the firstborn and the animal tithe. With regard to these two types of offerings, even if they were blemished before they became consecrated they assume inherent sanctity, like other offerings that were consecrated and subsequently became blemished.

וכל שקדם הקדשן את מומן, או מום עובר להקדשן, ולאחר מכאן נולד להן מום קבוע להקדשן ונפדו ⁠— פטורין מן הבכורה ומן המתנות, ואינן יוצאין לחולין ליגזז וליעבד.

And all sacrificial animals whose consecration preceded their blemish, or who had a temporary blemish prior to their consecration and afterward developed a permanent blemish and they were redeemed, they are exempt from, i.e., their offspring are not counted, a firstborn, and from the gifts of the foreleg, the jaw, and the maw, and they do not completely emerge from their sacred status and assume non-sacred status in order to be shorn and to be utilized for labor.