The third book of the bible, Vayikra (Leviticus), has an interesting pronouncement. This book (with its ten parshiot- weekly readings, 27 chapters in all) is concerned with priestly duties (hence Leviticus, of the Levi tribe, of which a select portion were the Kohanim- priests), sacrifices, and the laws. And, no, sacrifices are no longer effected. (They stopped with the destruction of the Great Temple.)