(a) Approvals. Type A medicated articles: (1) 2.2 percent to 061623 in Sec. 510.600(c) of this chapter for use as in paragraph (d) of this section.
(2) 5 and 10 percent to 061623 for use in paragraphs (d)(1)(i) and (ii) of this section.
(b) Special considerations. The levels of antibiotic are expressed in terms of erythromycin master standard. One gram of erythromycin thiocyanate is equivalent to 0.925 gram of erythromycin master standard.
(c) Related tolerances. See Sec. 556.230 of this chapter.
(d) Condition of use. (1) It is used as follows: ----------------------------------------------------------------------------------------------------------------Erythromycin thiocyanate in grams Combination in grams
(i) 4.6 to 18.5.................. .................... Chickens; growth ................... ,
promotion and feed 061623
efficiency.(ii) 9.25 to 18.5................ .................... Turkeys; growth For turkeys not ,
promotion and feed over 12 weeks of 061623
efficiency. age.(iii) 9.25 to 64.75.............. .................... Swine; increase in Starter ration for 061623
weight gain, improved animals up to 35
feed efficiency in lb body weight.
starter pigs (9.25 to
64.75) and grower-
finishing pigs (9.25).(iv) 18.5........................ .................... Laying chickens; aids ................... 061623
in increasing egg
production.(v) 92.5......................... .................... 1. Chickens; as an aid Feed for 2 d before 061623
in the prevention of stress and 3 to 6
chronic respiratory d after stress;
disease during periods withdraw 24 h
of stress. before slaughter.
2. Chickens; as an aid Feed for 7 to 14 d;
in the prevention of withdraw 24 h
infectious coryza. before slaughter.
3. Turkeys; as an aid Feed for 2 d before
in the prevention of stress and 3 to 6
chronic respiratory d after stress.
disease during periods
of stress.(vi) 185......................... .................... 1. Chickens; as an aid Feed for 5 to 8 d; 061623
in the prevention and do not use in
reduction of lesions birds producing
and in lowering eggs for food
severity of chronic purposes; withdraw
respiratory disease. 48 h before
slaughter.
2. Turkeys; as an aid Feed for 5 to 8 d; 061623
in the prevention and do not use in
reduction of lesions birds producing
and in lowering eggs for food
severity of chronic purposes.
respiratory disease.----------------------------------------------------------------------------------------------------------------
(2) In feed for feedlot beef cattle at 37 milligrams per head per day as an aid in stimulating growth and improving feed efficiency. [41 FR 10999, Mar. 15, 1976, as amended at 45 FR 56799, Aug. 26, 1980; 49 FR 31281, Aug. 6, 1984; 51 FR 7397, Mar. 3, 1986; 52 FR 2684, Jan. 26, 1987; 54 FR 12189, Mar. 24, 1989; 66 FR 14074, Mar. 9, 2001; 68 FR 4915, Jan. 31, 2003; 79 FR 10982, Feb. 27, 2014]