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 Code of Federal Regulations (Last Updated: November 8, 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

  § 558.62 - Arsanilic acid.  

Latest version.

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

    (a) Approvals. Type A medicated articles to sponsors in §510.600(c) of this chapter as follows:

    (1)-(2) [Reserved]

    (3) To 061133: 90 grams per pound arsanilic acid and 4.6 grams per pound erythromycin equivalents as erythromycin thiocyanate for use as in paragraph (c)(1), entry (iii); 90 grams per pound arsanilic acid and 9.25 grams per pound erythromycin equivalents as erythromycin thiocyanate for use as in paragraph (c)(1), entry (v).

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

    (c) Conditions of use. (1) It is used as follows:

    Arsanilic acid in grams per tonCombination in grams per tonIndications for useLimitationsSponsor
    (i)—(ii) [Reserved]
    (iii) 90Erythromycin 4.6Chickens; growth promotion and feed efficiency; improving pigmentation.As erythromycin thiocyanate; withdraw 5 days before slaughter; as sole source of organic arsenic.012487
    (iv) 90Erythromycin 4.6 to 18.5Chickens; growth promotion and feed efficiency; improving pigmentationAs erythromycin thiocyanate; withdraw 5 days before slaughter; as sole source of organic arsenic15565
    (v) 90Erythromycin 9.25Chickens; growth promotion and feed efficiency; improving pigmentation.As erythromycin thiocyanate; withdraw 5 days before slaughter; as sole source of organic arsenic.012487
    (vi) 90Erythromycin 92.51. Chickens; as an aid in the prevention of chronic respiratory disease during periods of stress; growth promotion and feed efficiency; improving pigmentationAs erythromycin thiocyanate; feed for 2 days before stress and 3 to 6 days after stress; withdraw 5 days before slaughter; as sole source of organic arsenic015565
       2. Chickens; as an aid in the prevention of infectious coryza; growth promotion and feed efficiency; improving pigmentationAs erythromycin thiocyanate; feed for 7 to 14 days; withdraw 5 days before slaughter; as sole source of organic arsenic015565
    (vii) 90Erythromycin 185Chickens; as an aid in the prevention and reduction of lesions and in lowering severity of chronic respiratory disease; growth promotion and feed efficiency; improving pigmentationAs erythromycin thiocyanate; feed for 5 to 8 days; do not use in birds producing eggs for food purposes; withdraw 5 days before slaughter; as sole source of organic arsenic15565

    (2) Arsanilic acid may be used in accordance with the provisions of this section in the combinations provided as follows:

    (i) Amprolium in accordance with §558.55.

    (ii) Amprolium and ethopabate in accordance with §558.58.

    (iii) Bacitracin zinc in accordance with §558.78.

    (iv) Bacitracin and zoalene in accordance with §558.680.

    (v) Zoalene in accordance with §558.680.

    [41 FR 10992, Mar. 15, 1976, as amended at 42 FR 18617, Apr. 8, 1977; 51 FR 7395, Mar. 3, 1986; 51 FR 33897, Sept. 24, 1986; 54 FR 18281, Apr. 28, 1989; 56 FR 19268, Apr. 26, 1991; 60 FR 39847, Aug. 4, 1995; 66 FR 14074, Mar. 9, 2001; 66 FR 57873, Nov. 19, 2001; 78 FR 70496, Nov. 26, 2013]