Chabad.org — English translation + Rashi
Torah Temimah: “ועצם לא ישברו בו” — the bone-breaking prohibition is likewise transferred.
English: “And they shall not break a bone in it” — as with the first.
Integrity of the korban — the second offering must remain whole in the same way.
The physical completeness of the Pesach is required whether offered in Nisan or in Iyar.