Any person who, by himself or another or as agent for another, shall knowingly sell or exchange any horse or mule subject to the disease or affection known as “choking,” or affected with glanders or some other fatal, contagious or infectious disease must, on conviction, be fined not less than $100.00 nor more than $500.00 and may also be sentenced to hard labor for the county for not less than three nor more than six months. One half of the fine shall go to the party injured. For each conviction under this section, the district attorney shall be entitled to a fee of $50.00.