WEB
He shall not alter it, nor change it, a good for a bad, or a bad for a good: and if he shall at all change animal for animal, then both it and that for which it is changed shall be holy.
YLT
he doth not change it nor exchange it, a good for a bad, or a bad for a good; and if he really change beast for beast,—then it hath been—it and its exchange is holy.