(a) Except as provided by Subsection (b) of this section, a person distributing customer-formula feed in this state shall furnish to the purchaser at the time of delivery a label showing:
(1) the name and address of the mixer, miller, or processor;
(2) the name and address of the purchaser;
(3) the date of sale;
(4) the name or brand and the number of pounds of each registered commercial feed used in the mixture; and
(5) the name and number of pounds of each other ingredient added to the mixture, including any ingredient supplied by the purchaser.
(b) If all ingredients for a customer-formula feed are furnished by the mixer, miller, or processor, the service may permit a customer-formula feed to be identified by means of an identifying name, number, or similar designation rather than by listing the ingredients under Subsections (a)(4) and (a)(5) of this section. The service may adopt rules and prescribe forms for identification of a customer-formula feed under this subsection.