Title 21
SECTION 558.555
558.555 Semduramicin.
§ 558.555 Semduramicin.(a) Specifications. Type A medicated article containing:
(1) 22.7 grams (g) per pound (lb) (50 g/kilogram (kg)) semduramicin (as semduramicin sodium).
(2) 22.7 g/lb (50 g/kg) semduramicin (as semduramicin sodium biomass).
(b) Approvals. See No. 066104 in § 510.600(c) of this chapter for use of product described in paragraph (a)(1) as in paragraph (d) of this section; for use of product described in paragraph (a)(2) as in paragraph (e) of this section.
(c) Related tolerances. See § 556.597 of this chapter.
(d) Conditions of use in chickens. It is used in chicken feed as follows:
| Semduramicin in grams per ton | Combinations in grams per ton | Indications for use | Limitations | Sponsor |
|---|---|---|---|---|
| (1) 22.7 (25 ppm) | Broiler chickens: For the prevention of coccidiosis caused by Eimeria acervulina, E. brunetti, E. maxima, E. mivati/E. mitis, E. necatrix, and E. tenella. | Do not feed to laying hens. | 066104 | |
| (2) 22.7 | Bacitracin methylenedisalicylate 10 to 50 | Broiler chickens: As in paragraph (d)(1) of this section; for improved feed efficiency. | Feed continuously as sole ration. Do not feed to laying hens. Bacitracin methylenedisalicylate as provided by No. 054771 in § 510.600(c) of this chapter. | 066104 |
(e) Conditions of use in chickens. It is used in chicken feed as follows:
| Semduramicin in grams per ton | Combination in grams per ton | Indications for use | Limitations | Sponsor |
|---|---|---|---|---|
| (1) 22.7 (25 ppm) | Broiler chickens: For the prevention of coccidiosis caused by Eimeria tenella, E. acervulina, E. maxima, E. brunetti, E. necatrix, and E. mitis. | Do not feed to laying hens. | 066104 | |
| (2) [Reserved] |
(f) Semduramycin may also be used in combination with virginiamycin as in § 558.635.
[59 FR 17477, Apr. 13, 1994, as amended at 60 FR 57928, Nov. 24, 1995; 61 FR 29481, June 11, 1996; 61 FR 43451, Aug. 23, 1996; 61 FR 66584, Dec. 18, 1996; 62 FR 66985, Dec. 23, 1997; 64 FR 48296, Sept. 3, 1999; 66 FR 47964, Sept. 17, 2001; 69 FR 13221, Mar. 22, 2004; 70 FR 41961, July 21, 2005; 73 FR 812, Jan. 4, 2008; 74 FR 41631, Aug. 18, 2009; 79 FR 10983, Feb. 27, 2014; 79 FR 13546, Mar. 11, 2014; 81 FR 17609, Mar. 30, 2016; 81 FR 95013, Dec. 27, 2016]