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(a)Approvals. Type A articles and Type B feeds approved for sponsors in 510.600(c) of this chapter for specific uses as in paragraph (d) of this section as follows:

(c)Special considerations --(1) Labeling of Type A medicated articles and Type B and Type C medicated feeds containing lincomycin shall bear the following directions: "CAUTION: Do not allow rabbits, hamsters, guinea pigs, horses, or ruminants access to feeds containing lincomycin. Ingestion by these species may result in severe gastrointestinal effects."

(2) Labeling of Type A medicated articles and Type B and Type C medicated feeds containing lincomycin intended for use in swine shall bear the following directions: "CAUTION: Occasionally, swine fed lincomycin may within the first 2 days after the onset of treatment develop diarrhea and/or swelling of the anus. On rare occasions, some pigs may show reddening of the skin and irritable behavior. These conditions have been self-correcting within 5 to 8 days without discontinuing the lincomycin treatment."

(3) Labeling of Type A medicated articles and single-ingredient Type B and Type C medicated feeds containing lincomycin intended for use in swine shall bear the following directions:

(i) No. 000009: "CAUTION: The effects of lincomycin on swine reproductive performance, pregnancy, and lactation have not been determined. Not for use in swine intended for breeding when lincomycin is fed at 20 grams per ton of complete feed."

(ii) Nos. 043733 and 051311: "CAUTION: Not to be fed to swine that weigh more than 250 lb."

Lincomycin grams/ton	Indications for use	Limitations	Sponsor
(i) 2	Broilers: For control of necrotic enteritis caused byClostridiumspp. or other susceptible organisms.	As lincomycin hydrochloride monohydrate.	000009
(ii) 2 to 4	Broilers: For increased rate of weight gain and improved feed efficiency.	As lincomycin hydrochloride monohydrate.	000009

Lincomycin grams/ton	Indications for use	Limitations	Sponsor
(i) 20	Growing-finishing swine: For increased rate of weight gain.	Feed as sole ration.	000009
(ii) 40	1. For control of swine dysentery.	Feed as sole ration; for use in swine on premises with a history of swine dysentery but where symptoms have not yet occurred, or following use of lincomycin at 100 grams (g)/ton for treatment of swine dysentery.	000009043733051311
	2. For control of porcine proliferative enteropathies (ileitis) caused byLawsonia intracellularis.	Feed as sole ration, or following use of lincomycin at 100 g/ton for control of porcine proliferative enteropathies (ileitis).	000009
(iii) 100	1. For treatment of swine dysentery.	Feed as sole ration for 3 weeks or until signs of disease disappear.	000009043733051311
	2. For control of porcine proliferative enteropathies (ileitis) caused byLawsonia intracellularis.	Feed as sole ration for 3 weeks or until signs of disease disappear.	000009
(iv) 200	For reduction in the severity of swine mycoplasmal pneumonia caused byMycoplasma hyopneumoniae.	Feed as sole ration for 3 weeks.	000009051311

(i) Amprolium and ethopabate or amprolium and ethopabate with roxarsone in accordance with 558.58.

ForFederal Registercitations affecting 558.325, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and on GPO Access.