(a) Specifications. Type A medicated article containing 25 percent zoalene.

(b) Approvals. See No. 054771 in §510.600(c) of this chapter.

(c) Related tolerances. See §556.770 of this chapter.

(d) Conditions of use—(1) Chickens

Open Table
Zoalene in grams/ton Combination in grams per ton Indications for use Limitations Sponsor
(i) 36.3 to 113.5 Replacement chickens: For development of active immunity to coccidiosis Grower ration not to be fed to birds over 14 weeks of age; as follows: 054771
Open Table
Growing conditions Starter ration
Grams per ton
Grower ration
Grams per ton
Severe exposure 113.5 (0.0125%) 75.4-113.5
(0.0083%-0.0125%)
Light to moderate exposure 75.4-113.5
(0.0083%-0.0125%)
36.3-75.4
(0.004%-0.0083%)
Open Table
Zoalene in grams/ton Combination in grams per ton Indications for use Limitations Sponsor
(ii) 36.3-113.5 Bacitracin methylenedisalicylate 4 to 50 Replacement chickens: For development of active immunity to coccidiosis; and for increased rate of weight gain and improved feed efficiency Feed continuously as sole ration as in subtable in item (i). Grower ration not to be fed to birds over 14 weeks of age. Bacitracin methylenedisalicylate as provided by No. 054771 in §510.600(c) of this chapter 054771
(iii) 36.3-113.5 Bacitracin methylenedisalicylate 50 Replacement chickens: For development of active immunity to coccidiosis; and 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 as in subtable in item (i). Grower ration not to be fed to birds over 14 weeks of age. Bacitracin methylenedisalicylate as provided by No. 054771 in §510.600(c) of this chapter 054771
(iv) 36.3-113.5 Bacitracin methylenedisalicylate 100 to 200 Replacement chickens: For development of active immunity to coccidiosis; and as an aid in the control of necrotic enteritis caused or complicated by Clostridium spp. or other organisms susceptible to bacitracin Feed continuously as sole ration as in subtable in item (i). To control necrotic enteritis, start medication at first clinical signs of disease; vary bacitracin dosage based on the severity of infection; administer continuously for 5 to 7 days or as long as clinical signs persist, then reduce bacitracin to prevention level (50 g/ton). Bacitracin methylenedisalicylate as provided by No. 054771 in §510.600(c) of this chapter 054771
(v) 113.5 Broiler chickens: For prevention and control of coccidiosis Feed continuously as sole ration 054771
(vi) 113.5 Bacitracin methylenedisalicylate 4 to 50 Broiler chickens: As an aid in the prevention and control of coccidiosis; and for increased rate of weight gain and improved feed efficiency Feed continuously as sole ration. Bacitracin methylenedisalicylate as provided by No. 054771 in §510.600(c) of this chapter 054771
(vii) 113.5 Bacitracin methylenedisalicylate 50 Broiler chickens: For prevention and control of coccidiosis; and 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. Bacitracin methylenedisalicylate as provided by No. 054771 in §510.600(c) of this chapter 054771
(viii) 113.5 Bacitracin methylenedisalicylate 100 to 200 Broiler chickens: For prevention and control of coccidiosis; and as an aid in the control of necrotic enteritis caused or complicated by Clostridium spp. or other organisms susceptible to bacitracin Feed continuously as sole ration. To control necrotic enteritis, start medication at first clinical signs of disease; vary bacitracin dosage based on the severity of infection; administer continuously for 5 to 7 days or as long as clinical signs persist, then reduce bacitracin to prevention level (50 g/ton)
Bacitracin methylenedisalicylate as provided by No. 054771 in §510.600(c) of this chapter
054771
(ix) 113.5 Bambermycins 1 Broiler chickens: As an aid in the prevention and control of coccidiosis; and for increased rate of weight gain and improved feed efficiency Feed continuously as sole ration. Do not feed to chickens over 14 weeks of age. Bambermycins as provided by No. 016592 in §510.600(c) of this chapter 016592

(2) Turkeys

Open Table
Zoalene in grams/ton Combination in grams per ton Indications for use Limitations Sponsor
(i) 113.5 to 170.3 Growing turkeys: For prevention and control of coccidiosis Feed continuously as sole ration. For turkeys grown for meat purposes only. Do not feed to laying birds 054771
(ii) 113.5 to 170.3 Bacitracin methylenedisalicylate 4 to 50 Growing turkeys: For prevention and control of coccidiosis; and for increased rate of weight gain and improved feed efficiency Feed continuously as sole ration until 14 to 16 weeks of age. For turkeys grown for meat purposes only. Do not feed to laying birds 054771

(3) Zoalene may also be used in combination with:

(i)-(ii) [Reserved]

(iii) Lincomycin as in §558.325.

[41 FR 11005, Mar. 15, 1976, as amended at 42 FR 18618, Apr. 8, 1977; 42 FR 20817, Apr. 22, 1977; 42 FR 36995, July 19, 1977; 51 FR 7401, Mar. 3, 1986; 52 FR 2686, Jan. 26, 1987; 55 FR 8461, Mar. 8, 1990; 57 FR 8403, Mar. 10, 1992; 57 FR 8578, Mar. 11, 1992; 61 FR 35957, July 9, 1996; 63 FR 38750, July 20, 1998; 67 FR 6868, Feb. 14, 2002; 71 FR 16223, Mar. 31, 2006; 71 FR 27958, May 15, 2006; 76 FR 17027, Mar. 28, 2011; 79 FR 10983, Feb. 27, 2014; 79 FR 13546, Mar. 11, 2014; 81 FR 17610, Mar. 30, 2016; 81 FR 95025, Dec. 27, 2016; 82 FR 21693, May 10, 2017]


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