NRS 574.150: Poisoning or attempting to poison animals unlawful; penalties; exception.

1. A person who unjustifiably administers any poisonous or noxious drug or substance to a horse, mule or domestic cattle, or unjustifiably exposes any such drug or substance with the intent that it be taken by a horse, mule or domestic cattle, whether the horse, mule or domestic cattle are the property of the person or another, is guilty of a category C felony and shall be punished as provided in NRS 193.130. In addition to any other penalty, the court shall order the person to pay restitution.

2. A person who unjustifiably administers any poisonous or noxious drug or substance to any animal other than a horse, mule or domestic cattle, or unjustifiably exposes any such drug or substance with the intent that it be taken by an animal other than a horse, mule or domestic cattle, whether the animal is the property of the person or another, is guilty of a gross misdemeanor. In addition to any other penalty, the court shall order the person to pay restitution.

3. This section does not prohibit the destruction of noxious animals.