21 C.F.R. § 558.274 Hygromycin B.
Title 21 - Food and Drugs
(a) Approvals. (1) Type A medicated articles: 2.4 and 8 grams per pound to 000986 in §510.600(c) of this chapter for use as in paragraph (c) of this section. (2) 2.4 grams per pound to Nos. 043733 and 051311 in §510.600(c) of this chapter for use in swine feed as in paragraph (c)(1)(ii) of this section. (3) [Reserved] (4) 0.6 gram per pound to 017790 and 043733 in §510.600(c) of this chapter for use in chickens as in paragraph (c)(1)(i) of this section and in swine as in paragraph (c)(1)(ii) of this section. (5)–(6) [Reserved] (7) 2.4 grams per pound to 017519 in §510.600(c) of this chapter for use in chickens as in paragraph (c)(1)(i) and in swine as in paragraph (c)(1)(ii) of this section. (8) 0.6 and 1.6 grams per pound granted to 046573 in §510.600(c) of this chapter for use in chickens as in paragraph (c)(1)(i) and in swine as in paragraph (c)(1)(ii) of this section. (b) Related tolerances. See §556.330 of this chapter. (c) Conditions of use. (1) It may be used as follows: (2) Hygromycin B may also be used in combination with: (i) Amprolium in accordance with §558.55. (ii) Zoalene in accordance with §558.680. [41 FR 11000, Mar. 15, 1976] Editorial Note: For
Title 21: Food and Drugs
PART 558—NEW ANIMAL DRUGS FOR USE IN ANIMAL FEEDS
Subpart B—Specific New Animal Drugs for Use in Animal Feeds
§ 558.274 Hygromycin B.
---------------------------------------------------------------------------------------------------------------- Combination in grams Hygromycin B in grams per ton per ton Indications for use Limitations Sponsor----------------------------------------------------------------------------------------------------------------(i) 8 to 12...................... .................... Chickens: control of Withdraw 3 days 000986, infestation of large before slaughter. 017519, roundworms (Ascaris 017790, galli), cecal worms 043733, (Heterakis gallinae), 046573 and capillary worms (Capillaria obsignata). Bacitracin 100...... Chickens; control of As bacitracin infestation of large methylene roundworms (Ascaris disalicylate or galli), cecal worms zinc bacitracin; (Heterakis gallinae), withdraw 3 days and capillary worms before slaughter. (Capillaria obsignata); treatment of chronic respiratory disease (airsac infection), blue comb (nonspecific infectious enteritis). Bacitracin plus 1. Chickens; control of Feed containing not penicillin (100 to infestation of large less than 25% of 200 of combination). roundworms (Ascaris penicillin plus galli), cecal worms not less than 50% (Heterakis gallinae), of bacitracin; as and capillary worms procaine (Capillaria penicillin plus obsignata); treatment bacitracin of chronic respiratory methylene disease (airsac disalicylate; infection), blue comb withdraw 3 days (nonspecific before slaughter. infectious enteritis). 2. Chickens; control of Combination infestation of large containing not roundworms (Ascaris less than 50% nor galli), cecal worms more than 75% of (Heterakis gallinae), bacitracin, except and capillary worms that it contains (Capillaria not more than 125 obsignata); treatment g of penicillin; of chronic respiratory as procaine disease (airsac penicillin plus infection), blue comb zinc bacitracin; (nonspecific withdraw 3 days infectious enteritis). before slaughter. 3. Chickens, control of Combination infestation of large containing 50% to roundworms (Ascaris 75% bacitracin, galli), cecal worms but not more than (Heterakis gallinae), 125 g of and capillary worms penicillin, as (Capillaria procaine obsignata); treatment penicillin; of chronic respiratory withdraw 3 days disease (airsac before slaughter.. infection), blue comb (nonspecific infectious enteritis). Chlortetracycline Chickens; control of Do not feed to 100 to 200. infestation of large chickens producing roundworms (Ascaris eggs for human galli), cecal worms consumption; feed (Heterakis gallinae), for 7 to 14 days; and capillary worms withdraw 3 days (Capillaria before slaughter. obsignata); control of infectious synovitis caused by Mycoplasma synoviae susceptible to chlortetracycline. Chlortetracycline Chickens; control of ......do........... 200 to 400. infestation of large roundworms (Ascaris galli), cecal worms (H. Gallinae), and capillary worms (Capillaria obsignata); control of chronic respiratory disease (CRD) and air sac infection caused by Mycoplasma gallisepticum and Escherichia coli susceptible to chlortetracycline. Penicillin 100...... Chickens; control of As procaine infestation of large penicillin; roundworms (Ascaris withdraw 3 days galli), cecal worms before slaughter. (Heterakis gallinae), and capillary worms (Capillaria obsignata); treatment of chronic respiratory disease (airsac infection), blue comb (nonspecific infectious enteritis). Tylosin 4 to 50..... Chickens: Control of As tylosin 000986 infestations of large phosphate; roundworms (Ascaris withdraw 3 days galli), cecal worms before slaughter. (Heterakis gallinae), and capillary worms (Capillaria obsignata); growth promotion and feed efficiency.(ii) 12.......................... .................... Swine: control of Withdraw 15 days 000986, infestation of large before slaughter. 017519, roundworms (Ascaris 017790, suis), nodular worms 043733, (Oesophagostomum 046573, dentatum), and 051311 whipworms (Trichuris suis). Chlortetracycline Swine; control of Withdraw 15 d 400.. infestation of large before slaughter.. roundworms (Ascaris suis), nodular worms (Oesophagostomum dentatum) and whipworms (Trichuris suis); treatment of bacterial enteritis caused by E. coli and Salmonella choleraesuis and bacterial pneumonia caused by P. multocida susceptible to chlortetracycline.. Tylosin 10 to 100... Swine: Control of As tylosin 000986 infestations of large phosphate; roundworms (Ascaris withdraw 15 days suis), nodular worms prior to (Oesophagostomum slaughter; feed dentatum), and continuously as whipworms (Trichuris follows:. suis); growth Animal wt.(lbs.):.. promotion and feed Up to 40........20 efficiency. to 100\1\. 41 to 100........20 to 40\1\. 101 to market wt........10 to 20\1\.----------------------------------------------------------------------------------------------------------------\1\ Amount of Tylosin (g/t).
