Section 556.600 - Spectinomycin(a)Acceptable daily intake (ADI). The ADI for total residue of spectinomycin is 25 [MICRO]g/kg of body weight per day.(b)Tolerances. The tolerances for spectinomycin are: (1)Cattle.(i) Kidney (target tissue): 4 ppm spectinomycin (marker residue).(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.