Specifications. Type A medicated articles containing:
35 grams (g) per pound (/lb) each, chlortetracycline and sulfamethazine.
40 g/lb each, chlortetracycline and sulfamethazine.
Sponsors. See sponsors numbers in § 510.600(c) of this chapter as follow:
Nos. 054771 and 069254 for use of product described in paragraph (a)(1) as in paragraph (e)(1) of this section.
Nos. 054771 and 069254 for use of product described in paragraph (a)(2) as in paragraph (e)(2) of this section.
Related tolerances. See §§ 556.150 and 556.670 of this chapter.
Special considerations. (1) Federal law restricts medicated feed containing this veterinary feed directive (VFD) drug to use by or on the order of a licensed veterinarian. See § 558.6 for additional requirements.
The expiration date of VFDs for chlortetracycline and sulfamethazine medicated feeds must not exceed 6 months from the date of issuance. VFDs for chlortetracycline and sulfamethazine shall not be refilled.
Conditions of use—(1) Cattle. It is used in feed for beef cattle as follows:
Amount. 350 milligrams per head per day each, chlortetracycline and sulfamethazine.
Indications for use. Aid in the maintenance of weight gains in the presence of respiratory disease such as shipping fever.
Limitations. Feed for 28 days; withdraw 7 days prior to slaughter. A withdrawal period has not been established for this product in pre-ruminating calves. Do not use in calves to be processed for veal.
Swine. It is used in swine feed as follows:
Amount. 100 g/ton each, chlortetracycline and sulfamethazine.
Indications for use. For reduction of the incidence of cervical abscesses; treatment of bacterial swine enteritis (salmonellosis or necrotic enteritis caused by Salmonella choleraesuis and vibrionic dysentery); prevention of these diseases during times of stress; and maintenance of weight gains in the presence of atrophic rhinitis.
Limitations. Feed as the sole ration. Withdraw 15 days prior to slaughter.
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