558.300—Ivermectin.
| Ivermectin in g/ton of feed | Combination in g/ton of feed | Indications for use | Limitations | Sponsor |
|---|---|---|---|---|
| (1) 1.8 (to provide 0.1 milligram per kilogram (mg/kg) of body weight per day) | Weaned, growing-finishing swine: For treatment and control of gastrointestinal roundworms (Ascaris suum, adults and fourth-stage larvae; Ascarops strongylina, adults; Hyostrongylus rubidus, adults and fourth-stage larvae; Oesophagostomum spp., adults and fourth-stage larvae); kidneyworms (Stephanurus dentatus, adults and fourth-stage larvae); lungworms (Metastrongylus spp., adults); threadworms (Strongyloides ransomi, adults and somatic larvae); lice (Haematopinus suis); and mange mites (Sarcoptes scabiei var. suis). | Feed as the only feed for 7 consecutive days. Withdraw 5 days before slaughter. | 050604 | |
| (2) 1.8 (to provide 0.1 mg/kg of body weight per day) | Bacitracin methylene disalicylate, 10 to 30 | Weaned, growing-finishing swine: As in paragraph (e)(1) of this section; and for increased rate of weight gain and improved feed efficiency. | For use in swine feed only. Feed as the only feed for 7 consecutive days. Withdraw 5 days before slaughter. | 050604 |
| (3) 1.8 (to provide 0.1 mg/kg of body weight per day) | Bacitracin methylene disalicylate, 250 | Weaned, growing-finishing swine: As in paragraph (e)(1) of this section; and for control of swine dysentery associated with Treponema hyodysenteriae on premises with a history of swine dysentery, but where symptoms have not yet occurred, or following an approved treatment of disease condition. | For use in swine feed only. Feed as the only feed for 7 consecutive days. Withdraw 5 days before slaughter. | 050604 |
| (4) 1.8 (to provide 0.1 mg/kg of body weight per day) | Lincomycin, 20 | Weaned, growing-finishing swine: For treatment and control of gastrointestinal roundworms (Ascaris suum, adults and fourth-stage larvae; Ascarops strongylina, adults; Hyostrongylus rubidus, adults and fourth-stage larvae; Oesophagostomum spp., adults and fourth-stage larvae); kidneyworms (Stephanurus dentatus, adults and fourth-stage larvae); lungworms (Metastrongylus spp., adults); lice (Haematopinus suis); and mange mites (Sarcoptes scabiei var. suis); and for increased rate of weight gain. | Feed as the only feed for 7 consecutive days. Not to be fed to swine that weigh more than 250 lbs. Withdraw 5 days before slaughter. Also see paragraphs (c)(1) and (c)(2) in § 558.325 of this chapter. | 050604 |
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Code of Federal Regulations
439
|
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| (5) 1.8 (to provide 0.1 mg/kg of body weight per day) | Lincomycin, 40 | Weaned, growing-finishing swine: As in paragraph (e)(4) of this section; and for control of swine dysentery on premises with a history of swine dysentery, but where symptoms have not yet occurred. | Feed as the only feed for 7 consecutive days. Not to be fed to swine that weigh more than 250 lbs. Also see paragraphs (c)(1) and (c)(2) in § 558.325 of this chapter. Withdraw 5 days before slaughter. A separate feed containing 40 g/ton lincomycin may be continued to complete the lincomycin treatment. | 050604 |
| (6) 1.8 (to provide 0.1 mg/kg of body weight per day) | Lincomycin, 100 | Weaned, growing-finishing swine: As in paragraph (e)(4) of this section; and for treatment of swine dysentery. | Feed as the only feed for 7 consecutive days followed by a separate feed containing 100 g/ton lincomycin for an additional 14 days to complete the lincomycin treatment. Withdraw 6 days before slaughter. Not to be fed to swine that weigh more than 250 lbs. Also see paragraphs (c)(1) and (c)(2) in § 558.325 of this chapter. | 050604 |
| (7) 1.8 (to provide 0.1 mg/kg of body weight per day) | Lincomycin, 200 | Weaned, growing-finishing swine: As in paragraph (e)(4) of this section; and for reduction in severity of swine mycoplasmal pneumonia caused by Mycoplasma hyopneumoniae. | Feed as the only feed for 7 consecutive days followed by a separate feed containing 200 g/ton lincomycin for an additional 14 days to complete the lincomycin treatment. Withdraw 6 days before slaughter. Not to be fed to swine that weigh more than 250 lbs. Also see paragraphs (c)(1) and (c)(2) in § 558.325 of this chapter. | 050604 |
| (8) 1.8 to 11.8 (to provide 0.1 mg/kg of body weight per day) | Adult and breeding swine: For treatment and control of gastrointestinal roundworms (Ascaris suum, adults and fourth-stage larvae; Ascarops strongylina, adults; Hyostrongylus rubidus, adults and fourth-stage larvae; Oesophagostomum spp., adults and fourth-stage larvae); kidneyworms (Stephanurus dentatus, adults and fourth-stage larvae); lungworms (Metastrongylus spp., adults); threadworms (Strongyloides ransomi, adults and somatic larvae, and prevention of transmission of infective larvae to piglets, via the colostrum or milk, when fed during gestation); lice (Haematopinus suis); and mange mites (Sarcoptes scabiei var. suis). | Feed as the only feed for 7 consecutive days. Withdraw 5 days before slaughter. | 050604 | |
|
Code of Federal Regulations
440
|
||||
| (9) 1.8 to 11.8 (to provide 0.1 mg/kg of body weight per day) | Bacitracin methylene disalicylate, 250 | Pregnant sows: As in paragraph (e)(8) of this section; and for control of clostridial enteritis caused by Clostridium perfringens in suckling piglets. | Feed as the only feed for 7 consecutive days. Withdraw 5 days before slaughter. Feed bacitracin methylene disalicylate Type C medicated feed to sows from 14 days before through 21 days after farrowing on premises with a history of clostridial scours. | 050604 |
| (10) 18.2 to 120 (to provide 0.1 mg/kg of body weight per day) | Adult and breeding swine: As in paragraph (e)(8) of this section. | Top dress on daily ration for individual treatment for 7 consecutive days. Withdraw 5 days before slaughter. | 050604 | |