Chlortetracycline.

(a) Acceptable daily intake (ADI). The ADI for total residue of tetracyclines including chlortetracycline, oxytetracycline, and tetracycline is 25 µg/kg of body weight per day. (b) Tolerances. The tolerances for the sum of tetracycline residues are: (1) Cattle. (i) Liver: 6 ppm. (ii) Kidney and fat: 12 ppm. (iii) Muscle: 2 ppm. (2) Chickens, turkeys, and ducks. (i) Liver: 6 ppm. (ii) Kidney and fat: 12 ppm. (iii) Muscle: 2 ppm. (iv) Eggs: 0.4 ppm for chlortetracycline only. (3) Sheep. (i) Liver: 6 ppm. (ii) Kidney and fat: 12 ppm. (iii) Muscle: 2 ppm. (4) Swine. (i) Liver: 6 ppm. (ii) Kidney and fat: 12 ppm. (iii) Muscle: 2 ppm. (c) Related conditions of use. See §§ 520.441, 520.443, 520.445, 558.128, and 558.140 of this chapter.