A commercial feed shall be deemed to be misbranded:

(1) If its labeling is false or misleading in any particular;

(2) If it is distributed under the name of another commercial feed;

(3) If it is not labeled as required in section 266.170, and the rules promulgated thereunder;

(4) If it purports to be or is represented as a commercial feed, or if it purports to contain or is represented as containing a commercial feed ingredient, unless such commercial feed or feed ingredient conforms to the definition, if any, prescribed by rules by the director;

(5) If it is not appropriate for its intended or purported use;

(6) If any word, statement, or other information required by or under authority of sections 266.152 to 266.220 to appear on the label or labeling is not prominently placed thereon with such conspicuousness as compared with other words, statements, designs, or devices in the labeling and in such terms as to render it likely to be read and understood by the ordinary individual under customary conditions of purchase and use.