Tex. Agriculture Code § 163.086: SALE OF INFECTED CATTLE.

(a) A person commits an offense if the person sells or otherwise disposes of an animal for purposes other than slaughter that the person knows to be infected with brucellosis.

(b) An offense under this section is a Class B misdemeanor.

(c) The sale or disposal of an animal with the letter "B" branded on the left jaw is prima facie evidence that the person knew the cow was infected with brucellosis.

Acts 1981, 67th Leg., p. 1418, ch. 388, Sec. 1, eff. Sept. 1, 1981. Amended by Acts 1983, 68th Leg., 1st C.S., p. 23, ch. 3, Sec. 15, eff. June 27, 1983; Acts 1989, 71st Leg., ch. 836, Sec. 42, eff. Sept. 1, 1989.