Federal Register - March 19, 2021
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Source: Federal Register
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Federal Register / Vol. 86, No. 52 / Friday, March 19, 2021 / Rules and Regulations Lincomycin grams/ton
Combination in grams/ton
ix 2
Salinomycin, 40
to 60.
Indications for use
Limitations
Broiler chickens: For the control of necrotic enteritis caused or complicated by Clostridium spp. or other organisms susceptible to lincomycin, and for the prevention of coccidiosis caused by Eimeria tenella, E. necatrix, E.
acervulina, E
maxima, E.
brunetti, and E. mivati.
Feed as the sole ration to broiler chickens. Do not feed to laying hens producing eggs for human consumption. Not approved for use with pellet binders. May be fatal if accidentally fed to adult turkeys or horses. Not for use in laying hens, breeding chickens, or turkeys. 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. Salinomycin as provided by No. 054771 in 510.600 of this chapter.
82. In 558.342, revise paragraph b to read as follows:
558.342
Melengestrol.
b Sponsor. See sponsors in 510.600c of this chapter for use as in paragraph e of this section.
83. In 558.355, revise paragraphs b introductory text, d9i and ii, and d10i and ii to read as follows:
558.355
Monensin.
b Sponsors. See sponsors in 510.600c of this chapter as follows:
d
9
Narasin and nicarbazin grams/ton
Combination in grams/ton
ii 27 to 45 of each drug.
Bacitracin methylenedisalicylate, 4 to 50.
jbell on DSKJLSW7X2PROD with RULES
Oxytetracycline amount
iv 3.75 g/100 lb of fish/day.
VerDate Sep<11>2014
558.363
Narasin.
a Specifications. Type A medicated articles containing 36, 45, 54, 72, or 90
grams narasin per pound.
85. In 558.364, revise paragraph d1ii to read as follows:
558.364
Naracin and nicarbazin.
d
1
Feed continuously as sole ration. Do not feed to laying hens. Do not allow turkeys, horses, or other equines access to formulations containing narasin. Ingestion of narasin by these species has been fatal.
For No. 054771: Withdraw 5 days before slaughter. For No. 069254:
Zero withdrawal period. Bacitracin methylenedisalicylate as provided by Nos. 054771 and 069254 in 510.600c of this chapter.
Nicarbazin.
section. See paragraphs d6 and d7i, vii, viii, and ix of this section. Paragraph d7vii of this section does not apply to free-choice Type C medicated feeds as defined in 510.455 of this chapter.
84. In 558.363, revise paragraph a to read as follows:
Broiler chickens: For the prevention of coccidiosis caused by Eimeria necatrix, E.
tenella, E.
acervulina, E. brunetti, E. mivati, and E. maxima, and for increased rate of weight gain and improved feed efficiency.
Sponsor
b Sponsors. See Nos. 058198, 060728, and 066104 in 510.600c of this chapter.
87. In 558.450, revise paragraph e5iv to read as follows:
558.450
Oxytetracycline.
e
5
Limitations
1. Freshwater-reared salmonids: For control of mortality due to coldwater disease associated with Flavobacterium psychrophilum.
Administer in mixed ration for 10 days. Do not liberate fish or slaughter fish for food for 21 days following the last administration of medicated feed..
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058198
069254
Indications for use
16:22 Mar 18, 2021
05477
Limitations
86. In 558.366, revise paragraph b to read as follows:
Indications for use
558.366
i Cattle as described in paragraphs f3i through iii, vi, and vii and f4i through vi of this section. See paragraphs d6 and d7i through v, vii, and viii of this section.
ii Dairy cows as described in paragraphs f3iv and v of this section. See paragraphs d6 and d7i through iv, vii, viii, and ix of this section.
10
i Cattle as described in paragraphs f3i through iii, vi, and vii and f4i through vi of this section. See paragraphs d6 and d7i, v, vii, and viii of this section. Paragraph d7vii of this section does not apply to free-choice Type C medicated feeds as defined in 510.455 of this chapter.
ii Dairy cows as described in paragraphs f3iv and v of this
Sponsors
Sponsor
19MRR1
066104
