(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] |
[81 FR 95005, Dec. 27, 2016]
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