Form VS 21-200 VS 21-200 2020 NAHMS Swine Large Enterprise Survey - Site Selectio

According to the Paperwork Reduction Act of 1995, an agency may not conduct or sponsor, and a person is not required to respond to
a collection of information unless it displays a valid OMB control number. The valid OMB control number for this information collection
is 0579-0315. The time required to complete this information collection is estimated to average 1 hour per response, including the
time to review instructions, search existing data resources, gather the data needed, and complete and review the information
collected.
UNITED STATES DEPARTMENT OF AGRICULTURE
ANIMAL AND PLANT HEALTH INSPECTION SERVICE
VETERINARY SERVICES
NATIONAL ANIMAL HEALTH MONITORING SYSTEM
2150 CENTRE AVE, BLDG B
FORT COLLINS, CO 80526

OMB Approved
0579-0315
EXP: XX/20XX

2020 NAHMS Swine Large Enterprise
Survey - Site Selection Form

Project Code: ? NAHMS ?
QID: 121858 SMetaKey: ?

Operation Identification
EPAID
___ ___ 0 0 0 0 ___ ___ ___ ___

Line Number
000
Office Use Only

0001

BEGINNING TIME [MILITARY]……………………………………………………………………………………….

0002
___ ___ ___ ___

INTRODUCTION
We would like to ask you some questions about the swine on the land you operate. USDA has collaborated with the National
Pork Board, National Pork Producers Council and American Association of Swine Veterinarians to design this study to
understand important issues in the hog industry. This questionnaire asks about the health status of the hogs on your land
and also about productivity and management practices.
Under Title 7 of the U.S. Code and CIPSEA (Public Law 107-347), facts about your operation are kept confidential and
used only for statistical purposes. Response is voluntary. However, your report is needed to make regional and national
estimates as accurate as possible.

VS Form 21-200
June 2020

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SECTION 1 – OPERATION SWINE INVENTORY
1. Had the respondent heard of the NAHMS 2020 Swine study prior to contact by NASS?............1000

1

YES

3

NO

2. Did this operation own any swine on June 1, 2020, including those raised by someone else 1001
for you on contract, regardless of location?.................................................................................

1

YES

3

NO

[If Item 2 = NO, SKIP to Section 4, Item 4.]
3. Of the total swine on hand for this operation June 1, 2020, how many were: (Enter Zero if None)
a. Sows, unmated replacement gilts and bred gilts in the breeding herd?........................................
b. Unmated replacement gilts for breeding not yet in the breeding herd, such as those in a Gilt
Development Unit? ....................................................................................................................... +
c.

Nursing pigs? ................................................................................................................................ +

d. Boars and young males for breeding, including teaser boars?..................................................... +
e. Cull sows, gilts and boars?........................................................................................................... +
f.

Weaned hogs under 60 pounds?................................................................................................... +

g. Market hogs 60 pounds and over, excluding cull sows, gilts and boars?................................. +

1002

Head

1003
1004
1005
1006
1007
1008

1009
h. Then the total number of swine on this operation on June 1, 2020 is:………………….....…….. =

SECTION 2– ELIGIBLE SITES PART OF THIS OPERATION
Read to respondent: For the purposes of this study, a “site” consists of a physically distinct area (an address) with
pig production facilities and support structures and typically specializes in a production phase.
2001

1. Do you raise swine at more than one production site today? Include contractee locations
where hogs are raised for you as a contractor….........................................................................

1

YES

3

NO

[If Item 1 = NO, fill in the contact information for that site in Appendix C, Table C1 or Table C2 (if weaned pigs only at
that site) and SKIP to Section 4.]
Sites
2. On how many separate production sites are your swine raised today? Include contractee locations
2002
where hogs are raised for you as a contractor…..………………………………………………………..…...
State Sites
3. Of these [Item 2] sites, how many were located within the state of [STATE]?.........................................

2003

Read to respondent: For the purposes of this study, a site with “Breeding swine” means a site with sows, gilts and
possibly unweaned piglets and boars and potentially growing pigs as well.
4. Of these [Item 3] sites, how many had:
a. Any Breeding swine such as sows, gilts, boars (may also have weaned pigs)? .............................
b. No Breeding swine such as sites with only nursery and/or grower/finisher aged pigs?....................

State Sites

2004
2005

[Items 4a + 4b should total to the number of sites in Item 3.]

VS Form 21-200
June 2020

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SECTION 3 – SITE SELECTION
1. Review the www.Random.org method (in Appendix A) and the random number
table method (in Appendix B). Then, indicate which method you will use to
randomly select sites.…......................................................................…............

3001

1

Random.org

2

Random number table

3

None

[If (Section 2, Item 4a) and (Section 2, Item 4b) are both 2 or fewer then choose “None” above]
[If Section 2, Item 4a = 0 then SKIP to Item 4.]
2. Obtain a list from the operation contact of all production sites in State with any Breeding swine [Section 2, Item 4a] and
number them sequentially (1, 2, 3, etc.). If such a list is not readily available then use the table below to create one.
Number

Site identifier

Number

Site identifier

Number

1

18

35

2

19

36

3

20

37

4

21

38

5

22

39

6

23

40

7

24

41

8

25

42

9

26

43

10

27

44

11

28

45

12

29

46

13

30

47

14

31

48

15

32

49

16

33

50

17

34

Site identifier

3. Use the number of sites in this State with any Breeding swine [Section 2, Item 4a] and the table below to determine the
number of sites to select.
If the number of sites in this
State with any Breeding Then choose this many
swine [Section 2, Item 4a] is
sites

Instructions

1

1

Write the site information for that site into Table C1, Appendix C.

2

2

Write the site information for both sites into Table C1, in Appendix C.

Write 2 in the Number to Select box in Appendix Items A1 or B1 and
then use your chosen random number generation method in Item 1 to
randomly select 2 sites.
Write 3 in the Number to Select box in Appendix Items A1 or B1 and
50 or more
3
then use your chosen random number generation method in Item 1 to
randomly select 3 sites.
Perform the Breeding site(s) selection using the method of your choice from Item 1 using the methods in Appendix
Items A1 or B1. Using the numbers selected pick sites from Item 2 above to fill in Appendix C, Table C1 and then go
on to Item 4 below if applicable.
3-49

VS Form 21-200
June 2020

2

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[If Section 2, Item 4b = 0 then SKIP to Section 4.]
4. Obtain a list from the operation contact of all production sites in State with NO Breeding swine [Section 2, Item 4b] and
number them sequentially (1, 2, 3, etc.). If such a list is not readily available then use the table below to create one.
Number

Site identifier

Number

Site identifier

Number

1

18

35

2

19

36

3

20

37

4

21

38

5

22

39

6

23

40

7

24

41

8

25

42

9

26

43

10

27

44

11

28

45

12

29

46

13

30

47

14

31

48

15

32

49

16

33

50

17

34

Site identifier

5. Use the number of sites in this State with NO breeding swine [Section 2, Item 4b] and the table below to determine the
number of sites to select.
If the number of sites in this
State with NO breeding
Then choose this
swine [Section 2, Item 4b] is
many sites

Instructions

1

1

Write the site information for that site into Table C2, Appendix C.

2

2

Write the site information for both sites into Table C2, in Appendix C.

Write 2 in the Number to Select box in Appendix Items A4 or B4 and then
use your chosen random number generation method in Item 1 to randomly
select 2 sites.
Write 3 in the Number to Select box in Appendix Items A4 or B4 and then
11-49
3
use your chosen random number generation method in Item 1 to randomly
select 3 sites.
Write 6 in the Number to Select box in Appendix Items A4 or B4 and then
50 or more
6
use your chosen random number generation method in Item 1 to randomly
select 6 sites.
Perform the NO breeding swine site(s) selection using the method of your choice from Item 1 using the methods in
Appendix Items A2 or B4. Using the numbers selected pick sites from Item 4 above to fill in Appendix C, Table C2
and conclude the interview.
3-10

VS Form 21-200
June 2020

2

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SECTION 4 – CONCLUSION
1. If you haven’t, fill in the contact information for all selected site(s) in [Appendix C, Tables C1 and C2]. For each of the
selected sites, start a Large Enterprise Survey (LES) by writing in the EPAID in the correct box on the title page. Fill in
the Site Number box with the Appendix C, Number of sites selected (one per LES) so that each LES has a unique Site
Number.
2. Request a signature on a NASS Swine 2020 Larger Producer-Consent form for the operation completing this
questionnaire and write in the EPAID in the correct box on the title page.
3. For each of the selected sites start a NASS Swine 2020 Larger Producer-Consent form by writing in the EPAID in the
correct box on the title page. Fill in the Site Number box with the Appendix C, Number of sites selected (one per LES)
so that each NASS Swine 2020 Larger Producer-Consent form has a unique Site Number.
4. ENTER INTERVIEW RESPONSE CODE
1 - No hogs June 1, 2020; not eligible for this study
2 - Out of business
3 - Refusal of LESSF
4 - Complete LESSF: signed CONSENT FORM
5 - Complete LESSF: refused CONSENT FORM
6 - Out of scope
7 - Office hold
8 - Inaccessible
[If Item 4 = 3 OR 5, complete Item 5; otherwise SKIP to Item 6.]

4000

5. ENTER OPERATION REFUSAL REASON CODE
1 - Does not want to commit time to the project
2 - Does not want involvement with government veterinarian
3 - Does not have necessary records available
4 - Has participated in too many surveys
5 - Does not want outside people on the swine operation
6 - A bad time of year due to planting, harvesting, second job, etc.
7 - Currently has or recently had disease problem with herd
8 - Believes that surveys and reports hurt the farmer more than help
9 - Could not get Owner/Contractor permission
10- No reason given or other miscellaneous reasons

4001

Code

Code

4002

6. ENDING TIME [MILITARY]………………………………………………………………………………………… ___ ___ ___ ___
9911
Respondent Name:
Response
1-No hogs
9901
2-Out of Business
3-Refusal
4-Compl-consent
5-Compl-no
consent
6-Out of scope
7-Office hold
8-Inaccesible

Respondent
1-Op/Mgr
2-Sp
3-Acct/Bkpr
4-Partner
9-Oth

9902

Phone:

(

9903

0098

Mode
2-Tel
3-Face-to-Face
8-CAPI
19-Other

)
Enum.

Eval.
0100

9910

MM

DD

YY

Date:

__ __

__ __

__ __

Rpt. Unit
0921

Office Use for POID
0789
__ __ __ - __ __ __ - __ __ __
Optional Use
0407

0408

S/E Name

VS Form 21-200
June 2020

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Appendix A - Random site selection using www.Random.org (requires an internet connection)
A1. Write the responses from Section 2, Item 4a and the number of breeding sites
to select from Section 3, Item 3 in the cell next to it.

Total Number of
Breeding Sites

Number to
Select

A2. Visit the www.Random.org website. See Figure 1 for an illustration of the website.
A3. Follow Steps i-vi below.
i.

In the “Max” field enter the Total Number of Breeding Sites from above.

ii. Press the “Generate” button to produce a single random number.
iii. Record the random number that is displayed in the “Random number generated” column in Table C1 in Appendix C.
iv. Repeat Steps ii and iii until the required number of sites with Breeding swine are chosen per Number to Select
above.
v. Match the numbers in the “Random number generated” column of Table C1 in Appendix C with the number and site
identifier(s) in Section 3, Item 2 and write the Site identifier for those numbers in the “Site Identifier” column in Table
C1 in Appendix C.
vi. Write in the site information for those site(s) into Table C1 in Appendix C.

A4. Write the responses from Section 2, Item 4b and the number of sites with NO
breeding swine to select from Section 3, Item 5 in the cell next to it.

Total Number of
Sites with NO
Breeding Swine

Number to
Select

A5. Visit the www.Random.org website. See Figure 1 for an illustration of the website.
A6. Follow Steps i-vi below.
i.

In the “Max” field enter the Total Number of Sites with NO Breeding Swine from above.

ii. Press the “Generate” button to produce a single random number.
iii. Record the random number that is displayed in the “Random number generated” column in Table C2 in Appendix C.
iv. Repeat Steps ii and iii until the required number of sites with NO Breeding swine are chosen per Number to Select
above.
v. Match the numbers in the “Random number generated” column of Table C2 in Appendix C with the number and site
identifier(s) in Section 3, Item 4 and write the Site identifier for those numbers in the “Site Identifier” column in Table
C2 in Appendix C.
vi. Write in the site information for those site(s) into Table C2 in Appendix C.
NOTE: If a randomly-generated number is the same as a previously-generated number, discard that number, it will not count
towards reaching the required number of sites and continue with the process outlined in Steps ii-iii. That is, there should be
no duplicate random numbers.

VS Form 21-200
June 2020

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Figure 1: Illustration of www.Random.org web site. The portions of the random number generator used in steps i-iii are
circled.

VS Form 21-200
June 2020

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Appendix B – Random site selection using a random number table-Breeding sites
B1. Write the responses from Section 2, Item 4a and the number of breeding sites
to select from Section 3, Item 3 in the cell next to it.

Total Number of
Breeding Sites

Number to
Select

B2. See Figure 2 for a random number table that will be used to randomly select sites.
B3. Follow Steps i-vi below.
Birth Day

i.

Write the calendar day of your own birthday (e.g., if your birthday is January 19, you would write
“19” in the code box to the right). This will be referred to below as your “birthday column.”

ii.

Match the Total Number of Breeding Sites above with the correct row in Total Number of Sites with Breeding
Swine column in the table below. Use the Columns to Use instructions corresponding to that correct row to
determine how many columns to use in the random number table.
Total Number of Sites with Breeding Swine
2 to 9
10 to 99
100 to 999
1,000 to 9,999

Columns to Use
Birthday column only
Birthday column plus ONE column to the right of it
Birthday column plus TWO columns to the right of it
Birthday column plus THREE columns to the right of it

iii. Write the number of your birthday column, plus the columns to the right of it that are needed in the
Columns to Use
space provided to the right. For example, if your birthday column is 19 and there are 45 Total
Number of Sites with Breeding Swine, write “19, 20.”
iv. Start in row 1 in your column(s) from B3iii. If you have more than one column, combine the numbers in each column
to make one number. For example, if you are using columns 19 and 20, row 1 has the numbers “0” and “3” in these
columns. Combine these numbers to make “3.”
A “good” number is between (and including) 1 and the Total Number of Breeding Sites in B1 above. If a selected
number is “good”, then write it in the “Random Number Generated” column of Table C1 in Appendix C. Alternatively,
do not write it in the table.
Next, proceed to row 2, row 3, row 4 and so on and write “good” random numbers in the “Random Number
Generated” column of Table C1 in Appendix C until the Number to Select in B1 above has been reached.
v. Write the numbers “Random number generated” column of Table C1 in Appendix C. Then match the numbers in the
“Random number generated” column of Table C1 in Appendix C with the number and site identifier(s) in Section 3,
Item 2 and write the Site identifier for those numbers in the “Site Identifier” column in Table C1 in Appendix C.
vi. Write the Site Information for those site(s) into Table C1 in Appendix C.
NOTE: If a randomly generated number is the same as a previously generated number, discard that number; it will not count
toward reaching the required number of sites. Be sure to replace this discarded number with a “good” number using Step iv.
NOTE: If you reach row 30 and have not written down the required number of sites continue in row 1, using the next set of
columns to the right of the set just used (e.g., if we reached row 30 using columns 19 and 20 but still need to select more
sites, we would start again in row 1 of columns 21 and 22).

VS Form 21-200
June 2020

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Appendix B – Random site selection using a random number table-Weaned pigs only

B4. Write the responses from Section 2, Item 4b and the number of sites with
weaned pigs only to select from Section 3, Item 5 in the cell next to it.

Total Number of
Sites with NO
Breeding Swine

Number to
Select

B5. See Figure 2 for a random number table that will be used to randomly select sites.
B6. Follow Steps i-vi below.
i. Write the calendar day of your own birthday (e.g., if your birthday is January 19, you would write
“19” in the code box to the right). This will be referred to below as your “birthday column.”

Birth Day

ii. Match the Total Number of Sites with NO Breeding Swine above with the correct row in Total number of with NO
Breeding Swine column in the table below. Use the Columns to Use instructions corresponding to that correct row
to determine how many columns to use in the random number table.
Total Number of Sites with NO Breeding swine
2 to 9
10 to 99
100 to 999
1,000 to 9,999

Columns to use
Birthday column only
Birthday column plus ONE column to the right of it
Birthday column plus TWO columns to the right of it
Birthday column plus THREE columns to the right of it

iii. Write the number of your birthday column, plus the columns to the right of it that are needed in the
Columns to Use
space provided to the right. For example, if your birthday column is 19 and there are 101 Total
Number of Sites with NO Breeding Swine, write “19, 20, 21.”
iv. Start in row 1 in your column(s) from B4iii. If you have more than one column, combine the numbers in each column
to make one number. For example, if you are using columns 19, 20 and 21, row 1 has the numbers “0”, “3” and “4” in
these columns. Combine these numbers to make “34.”
A “good” number is between (and including) 1 and the Total Number of Sites with NO Breeding Swine in B4
above. If a selected number is “good”, then write it in the “Random Number Generated” column of Table C2 in
Appendix C. Alternatively, do not write it in the table.
Next, proceed to row 2, row 3, row 4 and so on and write “good” random numbers in the “Random Number
Generated” column of Table C2 in Appendix C until the Number to Select above has been reached.
v. Match the numbers in the “Random number generated” column of Table C2 in Appendix C with the number and site
identifier(s) in Section 3, Item 4 and write the Site identifier for those numbers in the “Site Identifier” column in Table
C2 in Appendix C.
vi. Write the Site Information for those site(s) into Table C2 in Appendix C.
NOTE: If a randomly generated number is the same as a previously generated number, discard that number; it will not count
toward reaching the required number of sites. Be sure to replace this discarded number with a “good” number using Step iv.
NOTE: If you reach row 30 and have not written down the required number of sites continue in row 1, using the next set of
columns to the right of the set just used (e.g., if we reached row 30 using columns 19, 20 and 21 but still need to select more
sites, we would start again in row 1 of columns 22, 23 and 24).

VS Form 21-200
June 2020

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1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35

1
2
3
4
5

6
7
6
2
1

7
6
2
8
6

5
3
1
3
1

9
4
7
4
8

1
1
1
3
4

6
1
5
4
4

5
4
8
5
5

2
1
7
4
0

5
7
0
2
9

1
4
3
7
5

6
2
7
1
2

3
5
5
1
9

8
6
9
1
1

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7
9
3
2

8
6
4
4
8

7
2
8
7
2

1
3
6
8
9

9
5
5
0
5

0
4
6
1
3

3
3
1
1
4

4
6
4
0
9

8
0
6
7
1

3
8
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2
8

6
8
3
8
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5
4
0
3
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6
9
5
9
1

2
6
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8
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0
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8
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6
6
8
8
3

6
1
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4

5
8
3
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2
7
7
4
3

4
7
1
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4

3
3
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6
7
8
9
10

6
6
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6
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3

3
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2
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3
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4
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6
4
4
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2
6
2
6
2

3
6
2
6
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3
3
2
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4
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5
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5
9
1
2
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5
2
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7
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6
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0
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3
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4
7
6
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6
8
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2
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2
6
9
7
6

2
5
7
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8

8
4
6
7
1

3
9
4
4
9

9
4
1
6
2

5
5
0
6
4

0
7
3
3
9

11
12
13
14
15

4
4
5
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1

1
3
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0
9
9
2

0
2
9
2
5

3
7
2
7
6

4
2
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1
1
6
8
9

3
1
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4
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3
8
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2
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1
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8
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3
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16
17
18
19
20

1
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5
9
6

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9
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5
1
5
6
7

8
9
5
3
7

3
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9
3
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4
5
3
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8
4
7
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3
8
0
4
1

9
5
8
2
5

6
1
3
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1

6
3
6
5
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8
9
6
6
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3
1
2
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7
7
2
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8
8
4
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4
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9
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8
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6
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6
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7
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7
2
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3
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1
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7
6
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3
4
3
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9
7
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7
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6
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8
5
6
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4
4
9
4
2

3
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7
4
0
9
2

9
7
8
0
9

21
22
23
24
25

4
6
0
8
1

0
1
2
7
3

3
5
7
8
2

0
1
9
2
0

2
5
0
2
3

2
7
6
2
5

0
9
6
6
1

0
7
9
7
8

2
0
4
4
1

3
3
5
4
0

4
2
7
0
4

3
4
8
7
1

5
5
2
3
4

0
8
3
4
0

5
2
3
0
3

3
2
0
4
9

3
2
7
9
6

8
9
6
5
9

6
9
9
0
5

1
4
3
4
7

7
2
3
4
7

1
0
4
0
9

1
4
6
0
1

3
3
7
5
2

2
8
3
3
7

6
6
9
4
8

7
4
1
0
0

1
9
7
5
8

7
5
6
1
6

7
0
7
2
1

7
8
3
6
2

8
0
3
3
5

0
9
4
1
0

2
7
8
4
5

0
1
4
4
4

26
27
28
29
30

0
0
3
4
0

7
9
3
0
8

5
8
4
9
3

6
8
9
8
2

4
3
6
8
4

2
3
3
2
4

6
6
7
4
0

0
6
0
5
5

7
1
9
2
4

3
0
0
5
9

5
0
8
5
4

3
5
1
3
3

3
0
8
6
0

1
4
0
7
5

7
6
9
9
7

3
1
4
1
4

3
1
9
1
2

2
8
8
3
3

6
7
1
5
2

7
1
7
5
5

8
1
0
6
0

0
2
6
5
8

3
9
6
4
8

2
3
3
4
7

2
5
1
4
7

7
3
6
8
4

1
9
6
0
2

0
7
8
0
8

7
3
0
0
4

7
2
5
2
0

1
8
8
7
6

4
9
7
1
5

0
6
2
7
7

9
9
1
6
8

0
8
6
7
0

Figure 2: Random number table. To use, follow steps outlined in Appendix B, Steps i-vi.

VS Form 21-200
June 2020

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Appendix C – Selected Sites
For the purposes of this study, a site with “Breeding swine” means a site with sows, gilts and possibly unweaned
piglets and boars.
Table C1: Selected sites with Breeding swine.
Number
of sites
selected

Random
number
generated Site identifier

Contact name and
title

Site Information
Phone number

Address

B1
B2
B3
If there are sites with NO Breeding swine, return to Section 3, Item 4.
Table C2: Selected sites with NO Breeding swine.
Number
of sites
selected

Random
number
generated Site identifier

Contact name and
title

Site Information
Phone number

Address

N1
N2
N3
N4
N5
N6

VS Form 21-200
June 2020

- 11 -