The food additive reserpine (3,4,5-trimethoxybenzoyl methyl reserpate) may be safely used in animal feed in accordance with the following prescribed conditions:

(a) When used in this section:

(1) The term "reserpine" refers to reserpine or feed grade reserpine.

(2) The quantities of the additive prescribed refer to the weight of reserpine as the base, assaying not less than 94 percent C33H40N209.

(3) The antibiotic activities authorized are expressed in terms of the weight of the appropriate antibiotic standard.

(b) Permitted uses of reserpine alone and with certain other additives in medicated feeds are described in tabular form in this section, and the tables are to be read as follows:

(1) Where the principal ingredient is the sole medicament, the required limitations and indications for use are found on the same line entry.

(2) Where the principal ingredient is combined with a secondary ingredient, the required limitations and indications

for use for the secondary ingredient are found on the same line entry. The required limitations and indications for use of the principal ingredient at the designated concentration are found on the line entry for the principal ingredient alone, and both sets of applicable limitations and indications for use shall apply. If duplicate limitations occur, they may be appropriately combined.

(3) Permitted combinations of principal ingredient and secondary ingredient are individually listed. Unless specifically provided by the regulations, the principal ingredient may not be mixed with two or more secondary ingredients.

(4) Where cross-references specify a particular table and item number of another section, use of only the principal ingredient of the numbered item is authorized thereby.

(5) The term "principal ingredient" as used in this section refers to the additive named in the title of this section and is not intended to imply that the ingredient is of greater value than the other additives named in this section. (c) It is used or intended for use as follows:

For turkeys over 4 weeks of age.

For turkeys over 4 weeks
of age; as procaine
penicillin.

For turkeys over 4 weeks
of age; as bacitracin,
manganese bacitracin,
or zinc bacitracin.
For turkeys over 4 weeks
of age; as chlortetracy-
cline hydrochloride.
For turkeys; over 4
weeks of age; § 121.208
(d), table 1, items
1,3,7, 12; as chlortetra-
cycline hydro-
chloride.

3.6-50 For turkeys over 4 weeks of age; as procaine penicillin plus manganese bacitracin.

50-200

For turkeys over 4 weeks of age; feed not to exceed 5 days.

For turkeys over 4 weeks of age; feed not to exceed 5 days; as procaine penicillin. For turkeys over 4 weeks of age; feed not to exceed 5 days; as bacitracin, manganese bacitracin or zinc bacitracin.

For turkeys over 4 weeks of age; feed not to exceed 5 days; as chlortetracycline hydrochloride. For turkeys; over 4 weeks of age; feed not to exceed 5 days; as prescribed in § 121.208 (d), table 1, items 1, 3, 7, 12; as chlortetracycline hydrochloride. For turkeys over 4 weeks of age; feed not to exceed 5 days; as procaine penicillin plus manganese bacitracin.

Prevention of aortic rupture.

Growth promotion and feed efficiency.

Do.

Do.

§121.208(d), table 1, items 1,3,7,12.

Growth promotion and feed efficiency.

Treatment of aortic rupture.

Growth promotion and feed efficiency.

Do.

Do.

$121.208(d), table 1, items 1,3,7,12.

Growth promotion and feed efficiency.

3.6-50

(d) To assure safe use, the label and labeling of the additive, any combination of additives, and any feed additive supplement, feed additive concentrate, feed additive premix, or complete feed prepared therefrom shall bear, in addition to the other information required by the act, the following:

(1) The name of the additive or additives.

(2) A statement of the quantity or quantities contained therein, except that the label of the complete feed need not bear the quantities of the antibiotic drugs added solely for growth promotion.

NOTE: 121.205(d) (2) was amended to read "A statement of the quantity or

quantities contained therein" by an order published in the FEDERAL REGISTER on March 20, 1965, 30 FR. 8707, effective January 1, 1966. The effective date of this amendment was stayed by an order published in the FEDERAL REGISTER on September 28, 1965, 30 F.R. 12353, pending resolution of issues at a public hearing.

(3) Adequate directions and warnings for use.

[30 F.R. 15845, Dec. 23, 1965, as amended at 31 F.R. 7282, May 19, 1966; 31 F.R. 10744, Aug. 12, 1966]

§ 121.206 Condensed, extracted glutamic acid fermentation product. Condensed, extracted glutamic acid fermentation product may be safely used