21 C.F.R. § 558.274

Current through November 30, 2024

Section 558.274 - Hygromycin B

(a)Specifications. Type A medicated articles containing 2.4 or 8 grams hygromycin B per pound (g/lb).

(b)Sponsor. See No. 058198 in § 510.600(c) of this chapter for as follows:

(c)Related tolerances. See § 556.330 of this chapter.

(d)Special considerations.

(1) Federal law restricts medicated feed containing this veterinary feed directive (VFD) drug to use by or on the order of a licensed veterinarian. See § 558.6 for additional requirements.

(2) The expiration date of VFDs for hygromycin B medicated feeds must not exceed 6 months from the date of issuance. VFDs for hygromycin B shall not be refilled.

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

(1)Chickens -

Hygromycin B grams/ton	Combination in grams/ton	Indications for use	Limitations	Sponsor
(i) 8 to 12		Chickens: For control of infections of large roundworms (Ascaris galli), cecal worms (Heterakis gallinae), and capillary worms (Capillaria obsignata)	Use in complete feed. Withdraw 3 days before slaughter	058198
(ii) [Reserved]

(2)Swine -

Hygromycin B grams/ton	Combination in grams/ton	Indications for use	Limitations	Sponsor
(i) 12		Swine: For control of infections of large roundworms (A. suis), nodular worms (O. dentatum), and whipworms (Trichuris suis)	In market hogs, use in complete feed for 8 weeks during the growing period. Withdraw 15 days before slaughter	058198
(ii) [Reserved]

21 C.F.R. §558.274

81 FR 95005 , Dec. 27, 2016

81 FR 48703 , 7/26/2016; 81 FR 59135 , 9/8/2016; 81 FR 95005 , 12/27/2016