§520.2123b. Spectinomycin powder.
21 C.F.R. § 520.2123b
Specifications. Each gram (g) of powder contains spectinomycin dihydrochloride pentahydrate equivalent to 0.5 g spectinomycin.
Sponsor. See No. 061133 in § 510.600(c) of this chapter.
Related tolerances. See § 556.600 of this chapter.
Conditions of use in chickens. It is administered in the drinking water of growing chickens as follows:
Indications for use and amounts.
As an aid in controlling infectious synovitis due to Mycoplasma synoviae in broiler chickens, administer 1 g per gallon of water as the only source of drinking water for the first 3 to 5 days of life.
As an aid in the prevention or control of losses due to CRD associated with <I>M. gallisepticum (PPLO) in growing chickens, administer 2 g per gallon of water as the only source of drinking water for the first 3 days of life and for 1 day following each vaccination.
Limitations. Do not administer to laying chickens. Do not administer within 5 days of slaughter. Federal law restricts this drug to use by or on the order of a licensed veterinarian.
Notes, amendments, and revision history
Amendments
[73 FR 6607, Feb. 5, 2008, as amended at 81 FR 94990, Dec. 27, 2016; 84 FR 8973, Mar. 13, 2019]
Authority
Authority: 21 U.S.C. 360b.
Source
Source: 40 FR 13838, Mar. 27, 1975, unless otherwise noted.
Amendments
[73 FR 6607, Feb. 5, 2008, as amended at 81 FR 94990, Dec. 27, 2016; 84 FR 8973, Mar. 13, 2019]