Regulations last checked for updates: Nov 26, 2024

Title 21 - Food and Drugs last revised: Nov 21, 2024
§ 558.550 - Salinomycin.

(a) Specifications. Type A medicated articles containing 30 or 60 grams of salinomycin sodium activity per pound.

(b) Sponsor. See No. 016592 in § 510.600(c) of this chapter for use as in paragraph (e) of this section.

(c) Related tolerances. See § 556.592 of this chapter.

(d) Special considerations. Not approved for use with pellet binders.

(e) Conditions of use. It is used as follows:

(1) Chickens

Salinomycin in grams/ton Combination in
grams/ton
Indications for use Limitations Sponsor
(i) 40 to 60Broiler, roaster, and replacement (breeder and layer) chickens: For the prevention of coccidiosis caused by Eimeria tenella, E. necatrix, E. acervulina, E. maxima, E. brunetti, and E. mivatiFeed continuously as sole ration. Do not feed to birds producing eggs for human consumption. May be fatal if accidentally fed to adult turkeys or horses016592
(ii) 40 to 60Bacitracin methylenedisalicylate, 4 to 50Broiler, roaster, and replacement (breeder and layer) chickens: For the prevention of coccidiosis caused by Eimeria tenella, E. necatrix, E. acervulina, E. maxima, E. brunetti, and E. mivati, and for increased rate of weight gain and improved feed efficiencyFeed continuously as sole ration. Do not feed to laying chickens. May be fatal if fed to adult turkeys or horses. Salinomycin as provided by No. 016592; bacitracin methylenedisalicylate as provided by No. 054771 in § 510.600(c) of this chapter016592
054771
(iii) 40 to 60Bacitracin methylenedisalicylate, 50Broiler chickens: For the prevention of coccidiosis caused by Eimeria tenella, E. necatrix, E. acervulina, E. maxima, E. brunetti, and E. mivati, and as an aid in the prevention of necrotic enteritis caused or complicated by Clostridium spp. or other organisms susceptible to bacitracinFeed continuously as sole ration. Do not feed to laying chickens. May be fatal if fed to adult turkeys or to horses. Salinomycin as provided by No. 016592; bacitracin methylenedisalicylate as provided by No. 054771 in § 510.600(c) in this chapter054771
(iv) 40 to 60Bacitracin methylenedisalicylate, 100 to 200Broiler chickens: For the prevention of coccidiosis caused by Eimeria tenella, E. necatrix, E. acervulina, E. maxima, E. brunetti, and E. mivati, and as an aid in the control of necrotic enteritis caused or complicated by Clostridium spp. or other organisms susceptible to bacitracinFeed continuously as sole ration. To control necrotic enteritis, start medication at first clinical signs of disease; vary dosage based on the severity of infection; administer continuously for 5 to 7 days or as long as clinical signs persist, then reduce bacitracin to prevention level (50 grams per ton). Do not feed to laying chickens. May be fatal if fed to adult turkeys or to horses. Salinomycin as provided by No. 016592; bacitracin methylenedisalicylate as provided by No. 054771 in § 510.600(c) in this chapter054771
(v) 40 to 60Bacitracin zinc, 10 to 50Broiler chickens: For the prevention of coccidiosis caused by Eimeria tenella, E. necatrix, E. acervulina, E. maxima, E. brunetti, and E. mivati, and for increased rate of weight gainFeed continuously as sole ration. Not approved for use with pellet binders. Do not feed to layers. May be fatal if accidentally fed to adult turkeys or horses. Bacitracin zinc as provided by No. 054771 in § 510.600(c) of this chapter016592
054771
(vi) 40 to 60Bambermycins, 1 to 3Broiler chickens: For the prevention of coccidiosis caused by Eimeria tenella, E. necatrix, E. acervulina, E. maxima, E. brunetti, and E. mivati, and for improved feed efficiencyFeed continuously as sole ration. Do not feed to laying chickens. Not approved for use with pellet binders. May be fatal if accidentally fed to adult turkeys or horses. Salinomycin and bambermycins as provided by No. 016592 in § 510.600(c) in this chapter016592

(2) Game birds

Salinomycin in grams/ton Combination in
grams per ton
Indications for use Limitations Sponsor
(i) 50Quail: For the prevention of coccidiosis caused by Eimeria dispersa and E. lettyaeFeed continuously as sole ration. Do not feed to birds producing eggs for human consumption. May be fatal if accidentally fed to adult turkeys or horses016592
(ii) [Reserved]

(3) Combinations. Salinomycin may also be used in combination with:

(i) Avilamycin as in § 558.68.

(ii) Chlortetracycline as in § 558.128.

(iii) Lincomycin as in § 558.325.

(iv) Oxytetracycline as in § 558.450.

(v) Virginiamycin as in § 558.635.

[48 FR 30616, July 5, 1983] Editorial Note:For Federal Register citations affecting § 558.550, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.
source: 40 FR 13959, Mar. 27, 1975, unless otherwise noted.
cite as: 21 CFR 558.550