Code of Federal Regulations (alpha)

CFR /  Title 21  /  Part 558  /  Sec. 558.274 Hygromycin B.

(a) Approvals. See sponsor numbers in Sec. 510.600(c) of this chapter for Type A medicated articles as follow:

(1) No. 000986: 2.4 and 8 grams per pound (g/lb).

(2) No. 054771: 0.6 and 1.6 g/lb.

(b) Related tolerances. See Sec. 556.330 of this chapter.

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

(1) Chickens-- ----------------------------------------------------------------------------------------------------------------

Combination in grams

(i) 8 to 12....................... ..................... Chickens: For Withdraw 3 days 000986

control of before slaughter. 054771

infestation of

large roundworms

(Ascaris galli),

cecal worms

(Heterakis

gallinae), and

capillary worms

(Capillaria

obsignata).(ii) 8 to 12...................... Tylosin 4 to 50...... Chickens: For Withdraw 3 days 000986

control of before slaughter.

infestations of Tylosin as tylosin

large roundworms phosphate as

(Ascaris galli), provided by No.

cecal worms 000986 in Sec.

(Heterakis 510.600 of this

gallinae), and chapter.

capillary worms

(Capillaria

obsignata); growth

promotion and feed

efficiency.----------------------------------------------------------------------------------------------------------------

(2) Swine-- ----------------------------------------------------------------------------------------------------------------

Combination in grams

(i) 12............................ ..................... Swine: For control Withdraw 15 days 000986

of infestation of before slaughter. 054771

large roundworms

(Ascaris suis),

nodular worms

(Oesophagostomum

dentatum), and

whipworms

(Trichuris suis).(ii) 12........................... Tylosin 10 to 100.... Swine: For control Feed continuously as 000986

of infestations of follows: Animal

large roundworms weight (lbs.):

(Ascaris suis), Up to 40 . . . 20

nodular worms to 100 \1\.

(Oesophagostomum 41 to 100 . . . 20

dentatum), and to 40 \1\.

whipworms 101 to market

(Trichuris suis); weight . . . 10 to

growth promotion 20 \1\.

and feed efficiency. Withdraw 15 days

before slaughter.

Tylosin as tylosin

phosphate as

provided by No.

000986 in Sec.

510.600 of this

chapter.----------------------------------------------------------------------------------------------------------------\1\ Amount of Tylosin (g/t). [79 FR 10982, Feb. 27, 2014, as amended at 79 FR 19815, Apr. 10, 2014]