1. (a) Specifications. Type A medicated articles containing 30 grams per pound.
2. (b) Sponsor. See No. 054771 in § 510.600(c) of this chapter.
3. (c) Related tolerances. See § 556.580 of this chapter.
4. (d) Special considerations. Type C feed containing robenidine hydrochloride must be fed within 50 days from the date of manufacture. Do not use in Type B or Type C medicated feeds containing bentonite.

5. (e) Conditions of use. It is used in feed for chickens as follows:

   Robenidine hydrochloride in grams/ton	Combination ingrams/ton	Indications for use	Limitations	Sponsor
   30 (0.0033 pct)		Broiler chickens: As an aid in the prevention of coccidiosis caused by E. mivati, E. brunetti, E. tenella, E. acervulina, E. maxima, and E. necatrix.	Feed continuously as sole ration. Do not feed to chickens producing eggs for food. Withdraw 5 days prior to slaughter.	054771
   	Bacitracin (as bacitracin methylenedisalicylate) 4 to 30	For broiler and fryer chickens: As an aid in the prevention of coccidiosis caused by E. mivati, E. brunetti, E. tenella, E. acervulina, E. maxima, and E. necatrix. For increased rate of weight gain.	Feed continuously as sole ration. Do not feed to laying chickens. Withdraw 5 days prior to slaughter.	054771
   	Bacitracin (as bacitracin methylenedisalicylate) 27 to 50	For broiler and fryer chickens: As an aid in the prevention of coccidiosis caused by E. mivati, E. brunetti, E. tenella, E. acervulina, E. maxima, and E. necatrix. For improved feed efficiency.	Feed continuously as sole ration. Do not feed to laying chickens. Withdraw 5 days prior to slaughter.	054771
   	Bacitracin (as bacitracin methylenedisalicylate) 50	For broiler and fryer chickens: As an aid in the prevention of necrotic enteritis caused or complicated by Clostridium spp. or other organisms susceptible to bacitracin.	Feed continuously as sole ration. Do not feed to laying hens. Withdraw 5 days before slaughter.	054771
   	Bacitracin (as bacitracin methylenedisalicylate) 100 to 200	For broiler and fryer chickens: As an aid in the control of necrotic enteritis caused or complicated by Clostridium spp. or other organisms susceptible to bacitracin.	To control a necrotic enteritis outbreak, start medication at first clinical signs of disease; administer continuously for 5 to 7 days or as long as clinical signs persist, then reduce bacitracin methylenedisalicylate to prevention level (50 g/ton). Do not feed to laying hens. Withdraw 5 days before slaughter.	054771
   	Bacitracin (as bacitracin zinc) 4 to 30	For broiler and fryer chickens: As an aid in the prevention of coccidiosis caused by E. mivati, E. brunetti, E. tenella, E. acervulina, E. maxima, and E. necatrix. For increased rate of weight gain.	Feed continuously as sole ration. Do not feed to laying chickens. Withdraw 5 days prior to slaughter.	054771054771
   	Bacitracin (as bacitracin zinc) 27 to 50	For broiler and fryer chickens: As an aid in the prevention of coccidiosis caused by E. mivati, E. brunetti, E. tenella, E. acervulina, E. maxima, and E. necatrix. For improved feed efficiency.	Feed continuously as sole ration. Do not feed to laying chickens. Withdraw 5 days prior to slaughter.	054771054771

6. (f) Robenidine may also be used in combination with:

   1. (1) Chlortetracycline as in § 558.128.
   2. (2) Lincomycin as in § 558.325.

   3. (3) Oxytetracycline as in § 558.450.

      Editorial Note:For Federal Register citations affecting § 558.515, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.

[40 FR 13959, Mar. 27, 1975]