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 Code of Federal Regulations (Last Updated: May 6, 2024)
 Title 21 - Food and Drugs
 Chapter I - Food and Drug Administration, Department of Health and Human Services
 SubChapter E - Animal Drugs, Feeds, and Related Products
 Part 558 - New Animal Drugs for Use in Animal Feeds
 Subpart B - Specific New Animal Drugs for Use in Animal Feeds

  § 558.120 - Carbarsone (not U.S.P.).  

Latest version.

  • Link to an amendment published at 79 FR 10982, February 27, 2014.

    (a) Approvals. Type A medicated articles: (1) [Reserved]

    (2) 25 percent carbarsone and 5 grams per pound bacitracin (as bacitracin methylene disalicylate) to 046573 in §510.600(c) of this chapter.

    (b) Related tolerances. See §556.60 of this chapter.

    (c) [Reserved]

    (d) Conditions of use. (1) It is used for turkeys as follows:

    (i) [Reserved]

    (b) Limitations. Feed continuously beginning 2 weeks before blackhead is expected and continue as long as prevention is needed; withdraw 5 days before slaughter; as sole source of organic arsenic.

    (ii) Grams per ton. 227 to 340.5 (0.025 to 0.0375 percent) carbarsone plus 10 grams per ton bacitracin from bacitracin methylene disalicylate.

    (a) Indications for use. As an aid in the prevention of blackhead; for increased rate of weight gain.

    (b) Limitations. Feed continuously beginning 2 weeks before blackhead is expected and continue as long as prevention is needed; withdraw 5 days before slaughter; as sole source of organic arsenic.

    (iii) Grams per ton. 227 to 340.5 (0.025 to 0.0375 percent) carbarsone plus 4 to 45 grams per ton bacitracin from bacitracin zinc.

    (a) Indications for use. As an aid in the prevention of blackhead, increased rate of weight gain, and improved feed efficiency.

    (b) Limitations. Feed continuously as sole ration. Withdraw 5 days before slaughter. As sole source of organic arsenic; as bacitracin zinc provided by No. 046573 in §510.600(c) of this chapter.

    (iv) Grams per ton. 227 carbarsone, plus 1 or 4 grams per ton bambermycins.

    (a) Indications for use. As an aid in the prevention of blackhead; and for increased rate of weight gain (4 grams per ton bambermycins) or improved feed efficiency (1 gram per ton bambermycins).

    (b) Limitations. Feed continuously 2 weeks before blackhead is expected and continue as long as prevention is needed. Withdraw 5 days before slaughter. As sole source of organic arsenic. Bambermycins provided by No. 046573 in §510.600(c) of this chapter.

    (2) Carbarsone (not U.S.P.) may be used in accordance with the provisions of this section in the combinations provided as follows:

    (i) Zoalene in accordance with §558.680.

    (ii) Amprolium as in §558.55.

    [41 FR 10995, Mar. 15, 1976, as amended at 42 FR 18617, Apr. 8, 1977; 46 FR 46797, Sept. 22, 1981; 48 FR 2758, Jan. 21, 1983; 51 FR 7396, Mar. 3, 1986; 52 FR 2687, Jan. 26, 1987; 53 FR 20843, June 7, 1988; 57 FR 7652, Mar. 4, 1992; 61 FR 515, Jan. 8, 1996; 61 FR 18082, Apr. 24, 1996; 62 FR 61011, Nov. 14, 1997; 63 FR 27845, May 21, 1998; 66 FR 46706, Sept. 7, 2001; 71 FR 27956, May 15, 2006; 78 FR 69993, Nov. 22, 2013]