§ 556.113. Ceftiofur.
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/us/cfr/t21/s§ 556.113·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
(a)Acceptable daily intake and acute reference dose—(1) Acceptable daily intake (ADI). The ADI for total residue of ceftiofur is 30 µg/kg of body weight per day.
(2)Acute reference dose (ARfD). The ARfD for total residue of ceftiofur is 0.830 mg/kg of body weight.
(b)Tolerances. The tolerances for desfuroylceftiofur (marker residue) are:
(1)Cattle.
(i)Kidney (target tissue): 0.4 ppm.
(ii)Liver: 2 ppm.
(iii)Muscle: 1 ppm.
(iv)Milk: 0.1 ppm.
(2)Chickens and turkeys. Edible tissues (excluding eggs): Not required.
(3)Goats.
(i)Kidney (target tissue): 8 ppm.
(ii)Liver: 2 ppm.
(iii)Muscle: 1 ppm.
(iv)Milk: 0.1 ppm.
(4)Sheep. Edible tissues (excluding milk): Not required.
(5)Swine.
(i)Kidney (target tissue): 0.25 ppm.
(ii)Liver: 3 ppm.
(iii)Muscle: 2 ppm.
(c)Related conditions of use. See §§ 522.313a, 522.313b, 522.313c, and 526.313 of this chapter.
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§ 556.113
Ceftiofur.
Fed. Reg.×1
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