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Federal Register / Vol. 86, No. 200 / Wednesday, October 20, 2021 / Rules and Regulations Chlortetracycline amount
Combination in grams/
ton
xxiv to provide 350 mg/
head/day.

Beef cattle: For control of bacterial pneumonia associated with shipping fever complex caused by Pasteurella spp. susceptible to chlortetracycline.

xxv to provide 350 mg/
head/day.

Beef cattle under 700 lb: For control of active infection of anaplasmosis caused by Anaplasma marginale susceptible to chlortetracycline.

xxvi 50 to 350 g/ton to provide 350 mg/head/
day.

Melengestrol acetate, 0.5 to 2 g/ton to provide 0.5 mg melengestrol acetate per head per day.

Replacement beef heifers under 700
lb: For control of active infection of anaplasmosis caused by Anaplasma marginale susceptible to chlortetracycline and for suppression of estrus heat.

xxvii 20 to 350 g/ton

Beef cattle and replacement dairy heifers: For control of bacterial pneumonia associated with shipping fever complex caused by Pasteurella spp. susceptible to chlortetracycline.

xxviii 20 to 350 g/ton to provide 350 mg/head/
day.

Melengestrol acetate, 0.25 to 2 g/ton to provide 0.25 to 0.5 mg melengestrol acetate per head per day.

Growing beef heifers fed in confinement for slaughter: For control of bacterial pneumonia associated with shipping fever complex caused by Pasteurella spp. susceptible to chlortetracycline, increased rate of weight gain, improved feed efficiency, and suppression of estrus heat.

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Limitations Feed to provide chlortetracycline at the rate of 350 mg per animal daily. A withdrawal period has not been established for this product in pre-ruminating calves. Do not use in calves to be processed for veal.
Withdrawal periods: To sponsor No. 054771 under NADAs 046
699 and 049287, No. 066104
under NADA 092286, and No.
069254 under NADA 048480:
Withdraw 48 hours prior to slaughter. To sponsor No. 054771 under NADA 048761 and No. 069254
under NADA 138935 and ANADA
200510: Zero withdrawal period.
Feed to provide chlortetracycline at the rate of 350 mg per animal daily. A withdrawal period has not been established for this product in pre-ruminating calves. Do not use in calves to be processed for veal.
Withdrawal periods: To sponsor No. 054771 under NADAs 046
699 and 049287, No. 066104
under NADA 092286, and No.
069254 under NADA 048480:
Withdraw 48 hours prior to slaughter. To sponsor No. 054771 under NADA 048761 and No. 069254
under NADA 138935 and ANADA
200510: Zero withdrawal period.
Melengestrol acetate Type C topdress medicated feed must be top dressed or mixed at feeding with the Type C medicated feed containing 50 to 350 g/ton chlortetracycline for up to 24 days of feeding. Do not exceed 24 days of feeding. Chlortetracycline and melengestrol as provided by No.
054771 in 510.600c of this chapter.
Feed to provide chlortetracycline at the rate of 350 mg per head per day. This drug is not approved for use in female dairy cattle 20
months of age or older, including dry dairy cows. Use in these cattle may cause drug residues in milk and/or in calves born to these cows. A withdrawal period has not been established for this product in pre-ruminating calves. Do not use in calves to be processed for veal.
To sponsor No. 054771 under NADA 048761 and No. 069254
under ANADA 200510: Zero withdrawal period.
Melengestrol acetate Type C topdress medicated feed must be top dressed onto or mixed at feeding with the Type C medicated feed containing 20 to 350 g/ton chlortetracycline. Chlortetracycline and melengestrol as provided by No.
054771 in 510.600c of this chapter.

E:FRFM20OCR1.SGM

20OCR1

58005
Sponsor 054771
066104
069254

054771
066104
069254

054771

054771
069254

054771