Section 105.130 Requirements for Establishing and Maintaining a Herd Under the Voluntary Porcine Reproductive and Respiratory Disease (PRRS) Monitored Herd Program

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Illinois Administrative Code › Title 8 › › Part 1050 › Section 105.130 Requirements for Establishing and Maintaining a Herd Under the Voluntary Porcine Reproductive and Respiratory Disease (PRRS) Monitored Herd Program

This text was captured on Aug 14, 2026. It is a snapshot, not a live feed, so check the official code before relying on it.

Text

Section 105

TITLE 8: AGRICULTURE AND ANIMALS

CHAPTER I: DEPARTMENT OF AGRICULTURE

SUBCHAPTER b: ANIMALS AND ANIMAL PRODUCTS (EXCEPT MEAT AND POULTRY INSPECTION ACT REGULATIONS)

PART 105 SWINE DISEASE CONTROL AND ERADICATION ACT

SECTION 105.130 REQUIREMENTS FOR ESTABLISHING AND MAINTAINING A HERD UNDER THE VOLUNTARY PORCINE REPRODUCTIVE AND RESPIRATORY DISEASE (PRRS) MONITORED HERD PROGRAM

Section 105.130 Requirements

for Establishing and Maintaining a Herd Under the Voluntary Porcine

Reproductive and Respiratory Disease (PRRS) Monitored Herd Program

a) The

following definitions shall be applicable to this Section:

"Accredited

laboratory" means a laboratory operated by the Illinois Department of

Agriculture or the University of Illinois College of Veterinary Medicine, or a

laboratory approved by the Director (on the basis that it is using USDA

approved methods).

"Herd"

or "premises" means all animals under common ownership or supervision

on a specific geographic area. The herd or premises is defined by the owner and

veterinarian, and may include all or a portion of pork production under their

control. A premises describes a physical space that is dedicated for use by

the producer when entering the PRRS monitored herd program. For an entire

production system to be monitored, all phases of production must be sampled and

participate in the program. Producers can select the production group they wish

to monitor. All phases of production up to and including the

"selected" group must participate in the program. If multiple

locations input swine into the proposed PRRS monitored production herd or

premises, all sites must be sampled separately to validate the final PRRS

monitoring herd defined premises.

"PRRS"

means porcine reproductive and respiratory syndrome.

b) Criteria for herd to enter into or to remain in the voluntary

monitoring herd program:

1) Participation in this program is voluntary and the

producer/owner is responsible for the cost of testing

ction herd or

premises, all sites must be sampled separately to validate the final PRRS

monitoring herd defined premises.

"PRRS"

means porcine reproductive and respiratory syndrome.

b) Criteria for herd to enter into or to remain in the voluntary

monitoring herd program:

1) Participation in this program is voluntary and the

producer/owner is responsible for the cost of testing.

2) All breeding swine that have been tested must have permanent

identification such as registry association approved individual tattoo, ear

notch, registration number or approved ear tags. "Approved ear tags"

means any ear tag that is tamper resistant and has been approved for use by the

USDA. Information concerning manufacturers of approved ear tags may be

obtained from the Department.

3) The owner annually signs a producer agreement form verifying

that the producer or manager:

A) understands the clinical signs of PRRS;

B) identifies a herd veterinarian;

C) agrees to work with that veterinarian in the event clinical

signs of PRRS develop;

D) identifies the premises and animal production groups that will

be monitored and the average number of animals per premises or production

group; and

E) outlines the testing procedure employed to verify PRRS testing

qualifications.

4) Quarter sample size for initial monitoring for all production

systems and for monitoring phase for farrow-weaning sites (Table A):

Population size: Breeding

females

or maximum G-F

Breeding

herd

females

G-F Swine

(Grow-Finisher)

10 and under

11-20

21-30

31-40

41-50

51-100

101-200

201-1000

1001 and above

5) Quarter sample size for monitoring phase for farrow-finish and

farrow-feeder pig herds (Table B):

Population size: Breeding

females

or maximum G-F

Breeding

herd

females

G-F Swine

(Grow-Finisher)

10 and under

11-20

21-30

31-40

41-50

51-200

201 and above

6) Upon completio

51-100

101-200

201-1000

1001 and above

5) Quarter sample size for monitoring phase for farrow-finish and

farrow-feeder pig herds (Table B):

Population size: Breeding

females

or maximum G-F

Breeding

herd

females

G-F Swine

(Grow-Finisher)

10 and under

11-20

21-30

31-40

41-50

51-200

201 and above

6) Upon completion of the four qualifying tests, the Director

shall issue a certificate of PRRS monitoring for the herd. A new certificate

will be issued annually upon completion of the required monitoring test and the

receipt of the annual producer agreement form.

c) Procedure

for monitoring farrow-finish and seedstock producer herds:

1) Initial herd monitoring:

A) Test the required number of swine (Table A) in the

grow-finisher herd at 90-day intervals (+ or - 15 days) for a period of 12

months (4 tests total).

B) Blood test the required number of breeding stock (Table A) at

90-day intervals (+ or - 15 days) for a period of 12 months (4 tests total).

No sow shall be sampled twice with 101 sows or more in the breeding herd.

Individual identification is required.

C) External additions must be held in isolation and either tested

prior to or within 10 days after arrival and identified and tested 40-60 days

after arrival. Only after the retest can the animal be released from

isolation. If a positive animal is detected, all co-mingled animals must be

retested 30-40 days after the positive is disclosed. Any PRRS positive animal

must be promptly removed from the monitored premises.

D) All internal replacements (gilts, boars, teaser boars) must be

PRRS test negative prior to entry into the breeding herd.

2) Maintenance of monitored herd status:

A) Test animals in the grow-finisher according to Table B on

90-day intervals (+ or - 15 days). Pigs must weigh at least 90 pounds.

B) Test breeding herd according to Table B on 90-day intervals (+

or - 15 days)

All internal replacements (gilts, boars, teaser boars) must be

PRRS test negative prior to entry into the breeding herd.

2) Maintenance of monitored herd status:

A) Test animals in the grow-finisher according to Table B on

90-day intervals (+ or - 15 days). Pigs must weigh at least 90 pounds.

B) Test breeding herd according to Table B on 90-day intervals (+

or - 15 days). Sows must be of all parities and from each production phase

(gestation, post-weaning, lactation, and off-premises gestation). Individual

identification is required.

C) Additions to the herd shall be as prescribed in subsection

(c)(1)(C).

d) Procedure

for monitoring farrow-feeder pig premises:

1) Initial herd monitoring:

A) Test the required number of feeder pigs (Table A) at 90-day

intervals (+ or - 15 days) for a period of 12 months (4 tests). The sample

should represent the oldest pigs in the nursery. Pigs must be present in the

nursery at least two weeks prior to the sampling to be eligible for testing.

No identification is required. Multiple pens and litters must be sampled.

B) Test the required number of breeding swine (Table A) at 90-day

intervals (+ or - 15 days) for a period of 12 months (4 tests). No sow will be

sampled twice in herds of 101 or more sows during the year. Individual

identification is required.

C) External additions must be held in isolation and either tested

prior to or within 10 days after arrival and identified and tested 40-60 days

after arrival. Only after the test can the animal be released from isolation.

If a positive animal is detected, all in-contact animals must be retested 30-40

days after the positive is disclosed. Any PRRS positive animal must be

promptly removed from the monitored premises.

D) All internal replacements (gilts, boars, teaser boars) must be

PRRS test negative prior to entry into the breeding herd

val. Only after the test can the animal be released from isolation.

If a positive animal is detected, all in-contact animals must be retested 30-40

days after the positive is disclosed. Any PRRS positive animal must be

promptly removed from the monitored premises.

D) All internal replacements (gilts, boars, teaser boars) must be

PRRS test negative prior to entry into the breeding herd.

2) Maintenance of monitored herd status:

A) Test the feeder pigs according to Table B on 90-day intervals

(+ or - 15 days). The sample should represent the oldest pigs in the nursery.

Pigs must be present in the nursery at least two weeks prior to the sampling to

be eligible for testing. No identification is required. Multiple pens and

litters must be sampled.

B) Test breeding herd according to Table B on 90-day intervals (+

or - 15 days). Sows must be of all parities and from each production phase

(gestation, post-weaning, lactation, and off-premises gestation). Individual

identification is required.

C) Additions to the herd shall be as prescribed in subsection

(d)(1)(C).

e) Procedure

for monitoring farrow-weaning pig premises:

1) Initial herd monitoring:

A) No piglet sampling is required.

B) Test the required number of breeding swine (Table A) at 90-day

intervals (+ or - 15 days) for a period of 12 months (4 tests). No sow will be

sampled twice in herds of 101 or more sows during the year. Individual

identification is required.

C) External additions must be held in isolation and either tested

prior to or within 10 days after arrival and identified and tested 40-60 days

after arrival. Only after the retest can the animal be released from

isolation. If a positive animal is detected, all in-contact animals must be

retested 30-40 days after the positive is disclosed. Any PRRS positive animal

must be promptly removed from the monitored premises

be held in isolation and either tested

prior to or within 10 days after arrival and identified and tested 40-60 days

after arrival. Only after the retest can the animal be released from

isolation. If a positive animal is detected, all in-contact animals must be

retested 30-40 days after the positive is disclosed. Any PRRS positive animal

must be promptly removed from the monitored premises.

D) All internal replacements (gilts, boars, teaser boars) must be

PRRS test negative prior to entry into the breeding herd.

2) Maintenance of monitored herd status:

A) No piglet sampling is required.

B) Test breeding herd according to Table B on 90-day intervals (+

or - 15 days). Sows must be of all parities and from each production phase

(gestation, post-weaning, lactation and off-premises gestation). Individual

identification is required.

C) Additions to the herd shall be as prescribed in subsection

(e)(1)(C).

f) Procedure for monitoring boar stud premises where only

seronegative boars can reside:

1) Initial herd monitoring:

A) All boars must be tested every six months (+ or - 15 days) for

a period of 12 months (two tests).

B) All incoming boars must be tested prior to arrival or within 10

days after arrival and again 40-60 days after arrival. Boars must originate

from a farm where there has been no evidence of PRRS for at least one year.

The herd of origin must not be using PRRS vaccine.

2) Maintenance of monitored herd status:

A) Test the required number of boars (Table B) every 90 days (+ or

- 15 days).

B) All incoming boars must be tested prior to arrival or within 10

days after arrival and again 40-60 days after arrival. Boars must originate

from a farm where there has been no evidence of PRRS for at least one year.

The herd of origin must not be using PRRS vaccine

enance of monitored herd status:

A) Test the required number of boars (Table B) every 90 days (+ or

- 15 days).

B) All incoming boars must be tested prior to arrival or within 10

days after arrival and again 40-60 days after arrival. Boars must originate

from a farm where there has been no evidence of PRRS for at least one year.

The herd of origin must not be using PRRS vaccine.

g) Suspension

or revocation of monitored herd status:

1) If a positive animal is detected during a monitoring test, the

monitored herd status shall be suspended until all in-contact animals have been

retested 30-40 days after the positive is disclosed. Any PRRS positive animals

must be promptly removed from the monitored premises. If subsequent positives

are revealed, the monitored herd status shall be revoked.

2) Failure to conduct the required testing shall result in the

revocation of the monitored herd status.

This is a copy of a public record, reproduced as it was published. It is not legal advice, and it may not be the version a court would rely on. Check the official source before you cite it.