and to describe products that have met all the specific requirements of such classifications.

(b) Products produced under the Plan shall lose their identity under Plan terminology when they are purchased for resale by, or consigned to, non-participants.

(c) Participating flocks and the eggs and poults produced from them may be designated by their strain or trade name.

(1) A breeder's strain name may be used only when the flock is composed of (i) birds which were hatched from eggs produced under the direct supervision of the breeder or (ii) stock multiplied by persons designated and so reported by the breeder to each Official State Agency concerned.

game

(d) Domesticated waterfowl, birds and guineas meeting the requirements for participation for any of the classifications specified in § 146.10 may be designated as coming within such classification.

[23 F.R. 10096, Dec. 23, 1958, as amended at 29 F.R. 15896, Nov. 28, 1964; 32 F.R. 781, Jan. 24, 1967]

§ 146.9 Terminology and classification;

hatcheries and dealers.

Participating hatcheries and dealers producing or selling products described in § 146.10 shall be designated as 'National Plan Hatchery" and 'National Plan Dealer', respectively. Each such participating hatchery or dealer may be assigned a permanent approval number by the AH Division. This number may appear on each invoice and shipping label for each separate sale of poults or eggs. The approval number shall be withdrawn when the hatchery or dealer no longer qualifies for participation in the Plan. All Official State Agencies shall be notified by the AH Division of additions, withdrawals and changes in classification.

[25 F.R. 10126, Oct. 25, 1960, as amended at 29 F.R. 15896, Nov. 28, 1964]

§ 146.10 Terminology and classification; flocks and products.

Participating flocks, and the eggs and poults produced from them, which have met the respective requirements specified in this § 146.10 may be designated by the following terms or illustrative designs:

(a) U.S. Approved. All males and females selected by Authorized Agents according to standards prescribed by the

Official State Agency or the State College

of Agriculture.

U.S.

APPROVED

INTIP

FIGURE 10.

Clean.

(b) U.S. Pullorum-Typhoid Flocks meeting one of the following specifications:

(1) Flocks in which no pullorum or typhoid reactors were found on the first official blood test provided for in § 146.5 (c) (1): Provided, That if a reactor or reactors are found on the first test the flock may qualify with two consecutive official negative tests;

(2) Flocks maintained under the conditions prescribed in § 146.5(c) (2); or

(3) Flocks maintained under the conditions prescribed in § 146.5 (c) (3).

U.S. Pullorum-Typhoid CLEAN

NTIP

FIGURE 11.

(c) U.S. M. Gallisepticum Tested. (1) Flocks maintained in accordance with the conditions and procedures described in § 147.36 of this chapter, and in which no reactors are found when tested in accordance with the following procedures:

(i) A random sample of at least 10 percent of the birds in the flock shall be tested when more than 4 months of age;

(ii) The blood samples shall be drawn by an Authorized Agent or State Inspector and shall be tested by an authorized laboratory, using either the serum plate agglutination test, the tube agglutination test, the hemagglutination inhibition test, or a combination of two or more of these tests. The HI test shall be used

to confirm the results of other serological tests;

(iii) The tests shall be conducted using M. gallisepticum antigen approved by the Department and shall be performed in accordance with the recommendations of the producer of the antigen.

(2) When reactors are submitted to a laboratory as prescribed by the Official State Agency, the following criteria shall be used to determine if the flock is negative for M. gallisepticum: (i) Active air sac lesions; (ii) recovery of M. gallisepticum; and (iii) supplemental serological tests. If all of the above tests are negative, the flock shall be deemed to have had no M. gallisepticum reactors. If M. gallisepticum organisms are recovered, the flock shall be considered infected. If any of the other tests (subdivision (i) or (iii) of this subparagraph) is positive, the flock shall be considered suspicious and additional laboratory tests shall be conducted before the final disposition of the flock is determined.

(3) A flock qualified as U.S. M. Gallisepticum Tested may retain the classification for 1 year, provided it is maintained in isolation and no evidence of M. gallisepticum infection is revealed. Each flock and premises shall be inspected at least once during the laying period by an Authorized Agent of the Official State Agency. If a flock proves to be infected with M. gallisepticum, it shall be eliminated as a breeding flock under the supervision of the Official State Agency.

(4) In order to sell hatching eggs or poults of this classification, all hatching eggs and poults handled by the participant must be of this classification.

murium as provided in § 146.14 and no reactors were found on the last test;

(ii) The flock is maintained in compliance with the provisions of § 147.31 of this chapter and the hatching eggs are handled in compliance with the provisions of § 147.32 of this chapter in a manner satisfactory to the Official State Agency;

(iii) Hatching eggs are collected from the nests at frequent intervals throughout the day and fumigated in accordance with 147.35 (a) of this chapter as soon as possible and no later than 8 hours after collection. Eggs laid at night are collected early each morning and fumigated immediately.

(2) In order to sell hatching eggs or poults of this classification, all hatching eggs and poults handled must meet the requirements for this classification.

(3) Hatcheries producing products of this classification shall be maintained in compliance with the provisions of §§ 147.33, 147.34, and 147.35 of this chapter in a manner satisfactory to the Official State Agency.

(a) The Official State Agency may designate qualified persons as Authorized Agents to do the selecting and blood collecting provided for in §§ 146.5, 146.10, 146.14, and 146.31.

(b) The Official State Agency shall employ or authorize qualified persons as State Inspectors to perform, or supervise the performance of the selecting and testing of participating flocks and to perform the official inspections necessary to verify compliance with the requirements of the Plan.

[23 F.R. 10096, Dec. 23, 1958, as amended at 29 F.R. 15896, Nov. 28, 1964]

(a) Each participating hatchery shall be inspected a sufficient number of times each year to satisfy the Official State Agency that the operations of the hatchery are in compliance with the provisions of the Plan.

(b) Each year at least 15 percent of the flocks selected and tested by Authorized Agents shall be inspected by a State Inspector. This must include the inspection of some flocks of each hatchery. Each flock inspection shall include the examination of a sufficient number of males and females to determine whether the work of the Authorized Agent was satisfactory and that the flock is qualified for participation.

[23 F.R. 10096, Dec. 23, 1958]

§ 146.13 Debarment from participation.

Non-compliance with the provisions of the Plan, or regulations of the Official State Agency under § 146.2, not corrected within the time specified by the Official State Agency, shall be grounds for the Official State Agency to bar a participant from further participation for a period to be determined in each case by the Official State Agency. Such action shall not be taken until a thorough investigation has been made by the Official State Agency and the participant has been given an opportunity for a hearing. [23 F.R. 10097, Dec. 23, 1958]

§ 146.14 Blood testing.

(a) In the official blood tests for Salmonella organisms, the blood shall be drawn by an Authorized Agent or State Inspector and tested by an authorized laboratory, using the procedures described in § 147.1 or § 147.2 of this chapter for pullorum-typhoid, and the procedures described in § 147.4 of this chapter for typhimurium. If the following conditions are fulfilled, the tests for pullorum-typhoid and typhimurium may be combined:

(1) The flock is located in a State where an adequate surveillance program for pullorum-typhoid and typhimurium exists;

(2) A single combination antigen composed of equal quantities of pullorum antigen and typhimurium antigen are used in a screening test. The procedures described in § 147.1 of this chapter shall be followed;

(3) All serums showing suspicious and positive reactions to the combination antigen are reset with individual anti

gens. Final determination of the status of each flock shall be determined by bacteriological examination of representative birds showing suspicious or positive reactions;

(4) If the flock is found to be infected with S. pullorum, S. gallinarum, or S. typhimurium on the basis of bacteriological examinations, retests of the flock shall be done with individual antigens (pullorum and typhimurium antigens) until the flock is qualified or eliminated.

(b) There shall be an interval of at least 21 days between any official blood test and any previous test with Salmonella antigen.

(c) All turkeys to be used as breeders must be tested when more than four months of age.

(d) All domesticated fowl, except waterfowl, on the farm of the participant shall either be properly tested to meet the same standards as the participating flock or these birds and their eggs shall be separated from the participating flock and its eggs.

(e) All tests with Salmonella antigens of flocks participating in or candidates for participation in the Plan shall be reported to the Official State Agency within 10 days following the completion of such tests. All reactors shall be considered in determining the classification of the flock.

(f) Reactors may be submitted to a laboratory for autopsy and bacteriological examination. The laboratory and the number of reactors to be submitted shall be designated by the Official State Agency. The recommended minimum procedure for bacteriological examination is described in Subpart B, Part 147 of this chapter. When reactors are submitted within 10 days from date of reading the test and the bacteriological examination fails to demonstrate infection of the serotype for which the test was conducted, the flock shall be deemed to have had no reactors to the specified test. If other members of the Salmonella group or paracolons are isolated, the Official State Agency may disqualify the flock for participation, or require such other action as is deemed necessary witn respect to the infection.

(g) When evidence indicates that poults produced by participating hatcheries are infected with organisms for which the parent flocks were tested, the Official State Agency may, at its discretion, require additional testing of the flocks involved. If infection is found in

the parent flock, its classification shall be suspended until the flock is requalified under the requirements for the classification. Furthermore, the Official State Agency may require that the hatching eggs from such flocks be removed from the incubator and destroyed prior to hatching. When Salmonella or Arizona organisms are isolated from a specimen which originated in a participating hatchery, the Official State Agency shall attempt to locate and eliminate the source of the infection. The results of the investigation shall be reported by the Official State Agency to the AH Division.

(h) Any drug, for which there is scientific evidence of masking the test reaction or hindering the bacteriological recovery of Salmonella organisms, shall not be fed or administered to turkeys within three weeks prior to a test or bacteriological examination upon which a Salmonella classification is based.

[23 F.R. 10097, Dec. 23, 1958, as amended at 28 F.R. 70, Jan. 3, 1963; 29 F.R. 15896, Nov. 28, 1964; 32 F.R. 782, Jan. 24, 1967]

§ 146.15 Pullorum-Typhoid Clean State. (a) A State may be deemed to be a Pullorum-Typhoid Clean State when it is determined by the AH Division that:

(1) All chicken and turkey hatcheries within the State are qualified as "National Plan Hatcheries" or have met equivalent requirements for pullorumtyphoid control under official supervision;

(2) All chicken and turkey hatchery supply flocks within the State are qualified as U.S. Pullorum-Typhoid Clean or have met equivalent requirements for blood testing under official supervision;

(3) All shipments of products other than U.S. Pullorum-Typhoid Clean, or equivalent, into the State are prohibited;

(4) All diagnostic laboratories within the State are required to report to the Official State Agency within 48 hours the source of all poultry specimens from which S. pullorum or S. gallinarum is isolated;

(5) All reports of S. pullorum or S. gallinarum isolation are promptly followed by an Official State Agency investigation to determine the origin of the infection;

(6) All flocks found to be infected with pullorum or typhoid (i) are quarantined until marketed under the supervision of the Official State Agency, or (ii) have been subsequently blood tested and all birds in such flocks failed to demonstrate

pullorum or typhoid infection. (The use of eggs produced by a quarantined flock for hatching purposes is prohibited. The quarantined flock or any other flock on the same premises during the next 2 years may qualify as a U.S. PullorumTyphoid Clean flock only on the basis of official blood tests conducted by or directly supervised by a State Inspector on all birds in the flock); and

(7) All chickens and turkeys going to public exhibition come from U.S. Pullorum-Typhoid Clean or equivalent flocks, or have a negative pullorum-typhoid test within the past 90 days.

(b) To retain the designation Pullorum-Typhoid Clean State, a monitoring program, including official blood tests of at least 25 percent of the birds in the hatchery supply flocks in the State, must be systematically conducted each year. The samples tested must be selected to be representative of all hatchery supply flocks in the State. The minimum requirement as to the percentage of birds tested in the monitoring program may be reduced by 5 percent following each year in which no infected birds are detected.

[32 F.R. 782, Jan. 24, 1967] § 146.16

Turkey reproduction test.

A turkey reproduction test is a test of the reproductive (combination of egg production and hatchability) qualities of a representative sample of the entrant's stock conducted under the supervision of the Official State Agency, in accordance with the following provisions:

(a) The test shall be available to any participant.

(b) The entry shall consist of at least 200 hens, penned separately, which are representative of the entrant's supply flocks or his breeder replacement flocks.

(c) All eggs produced by the entry during a period of at least eight consecutive weeks designated in advance by the entrant, shall be incubated and complete records kept on the number of eggs produced, eggs set and salable poults hatched.

(d) The Official State Agency shall furnish the AH Division, for publication, the following information for each entry:

(1) Kind of stock (variety, strain, or cross; primary breeding flock or multiplier breeding flock);

(2) Mating procedure: (Natural mating, artificial insemination or both);

A central turkey meat production test is a test of a representative sample of the stock of two or more entrants, to fryerroaster or mature marketing age, conducted under official supervision at a neutral location, in accordance with the following provisions:

(a) The test shall be available to any participant.

(b) The entry shall consist of at least 100 poults, 50 percent of each sex.

(c) A sufficient number of eggs, determined by the entrant, to produce the poults required for the entry shall be selected by a representative of the Offcial State Agency in accordance with the following procedure:

(1) Determine from Official State Agency records the flocks, and the number of birds in each, supplying eggs of the grade to be tested.

(2) The sample shall be taken from at least 50 percent of the flocks supplying eggs of the grade to be tested. These flocks shall be selected at random and shall comprise at least 50 percent of the birds in all such flocks. The sample shall be taken at random from eggs held in the hatchery egg room or in the egg rooms of the individual supply flocks; provided, that if the egg room contains eggs from more than one flock, all eggs must be identified as to flock source.

(3) The sample shall be taken in proportion to the number of birds in each sampled flock.

(4) The sample shall not include eggs which, in the opinion of the sample taker, are unsuitable for hatching.

(5) Each egg shall be identified with a stamp furnished by the test management and placed in an appropriate container for shipment to the test.

(6) The sample taker shall furnish the Official State Agency and the test supervisor with a detailed report of the procedure followed in obtaining each sample.

(d) The sample of eggs shall be taken at random from the entrant's supply

flocks or from his breeder replacement flocks.

(e) The eggs from all entrants shall be incubated in one hatchery at the same time.

(f) Poults shall be banded in each wing with a sealed and numbered band for identification.

(g) Poults shall be brooded and reared either intermingled or separated by entries, at the option of the test management, provided that varieties of different size or color shall be separated.

(h) The duration of the test shall be determined by the test management.

(i) The following data shall be obtained and reported by the Official State Agency for each entry:

(1) Kind of stock (variety, strain, or cross; primary breeding flock or multiplier breeding flock);

(2) Mating procedure: (Natural mating, artificial insemination or both);

(3) Number of breeder hens in the flock or flocks from which egg sample was drawn;

(4) Mortality to two weeks of age; to eight weeks of age; and to the end of the test.

(5) Average live weight (i) of fryerroaster entry at the end of test; and (ii) of mature marketing entry at 12 weeks of age; and at close of test (such average weight shall be based on individual weights and separated by sexes);

(6) Average eviscerated weight, including neck and giblets, of all birds completing the test, by sexes. (If neck or giblets are not included this shall be explained in all reports);

(The

(7) Average breast width, body dept and keel length of live or New York dressed birds, by sexes. The report shall show whether the measurements were taken on live or dressed birds. breast width shall be measured at the widest point 13⁄4 inches above the keel. The body depth shall be measured at the deepest point. These measurements shall be taken while the birds are suspended by the legs. The keel length shall be measured by the chord from the anterior to the posterior end of the keel.)

(8) The percentage of birds with the following defects: Pendulous crop, roach back, leg weakness, and breast blisters.

(9) Other items of economic importance, such as dressing percentage and feed conversion, at the option of the Official State Agency and the AH Division. (Feed conversion ratio, when reported, shall be computed by two methods: (i)