BRASILIA, Brazil (AP) — A judge in the Brazilian state of Rondonia has found two beef slaughterhouses guilty of buying cattle from a protected area of former rainforest in the Amazon and ordered them, along with three cattle ranchers, to pay a total of $764,000 for causing environmental damage, according to the decision issued Wednesday. Cattle raising drives Amazon deforestation. The companies Distriboi and Frigon and the ranchers may appeal.

It is the first decision in several dozen lawsuits seeking millions of dollars in environmental damages from the slaughterhouses for allegedly trading in cattle raised illegally in a protected area known as Jaci-Parana, which was rainforest but is now mostly converted to pasture.

Four slaughterhouses are among the many parties charged, including JBS SA, which bills itself as the world’s largest protein producer. The court has not decided on the cases involving JBS.

Brazilian law forbids commercial cattle inside a protected area, yet some 210,000 head are being grazed inside Jaci-Parana, according to the state animal division. With almost 80% of its forest destroyed, it ranks as the most ravaged conservation unit in the Brazilian Amazon. A court filing pegs damages in the reserve at some $1 billion.