It is unlawful for a person who impounds or confines, in any place, an animal, excluding livestock, to fail to supply the animal during confinement with a sufficient quantity of food or water, or to fail to provide a confined dog or cat with adequate shelter, or to torture, deprive of necessary sustenance, mutilate, beat, or kill such animal by any means which causes unjustified pain, distress or suffering.
(Code of Iowa, Sec. 717B.3)