Catechism of the Catholic Church §2417 — excerpt
God entrusted animals to the stewardship of those whom he created in his own image. Hence it is legitimate to use animals for food and clothing.
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.