Spectinomycin.

(a) Acceptable daily intake (ADI). The ADI for total residue of spectinomycin is 25 µg/kg of body weight per day. (b) Tolerances. The tolerances for spectinomycin are: (1) Cattle. (i) Kidney (target tissue): 4 ppm spectinomycin (marker residue). (ii) Muscle: 0.25 ppm. (2) Chickens and turkeys. Edible tissues (excluding eggs): 0.1 ppm. (3) Swine. Edible tissues: Not required. (c) Related conditions of use. See §§ 520.1265, 520.2123b, 520.2123c, 522.2120, and 522.2121 of this chapter.