Reproductive Decision Tree - Dr. Don Levis, Levis Worldwide Swine Consultancy, from the 2014 World Pork Expo, June 4 - 6, 2014, Des Moines, IA, USA.
More presentations at http://www.swinecast.com/2014-world-pork-expo
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Dr. Don Levis - Reproductive Decision Tree
1. Swine Reproduction Decision Tree
National Swine Reproduction Guide -
A troubleshooting and management tool
Dr. Donald G. Levis
Levis Worldwide Swine Consultancy
5910 South 88th Street
Lincoln, Nebraska 68526-9486
E-mail: donlevis@hotmail.com
1PORK Academy
June 4, 2014
World Pork Exposition
2. Content of Presentation
• Why was the Swine Reproduction Decision Tree
developed?
• Who prepared the document?
• Who provided funding for developing the
document?
• Computer format and preparation of
information
• User fee
• Demonstrate how the tool works
2
5. University Swine Extension FTE by subject matter within
United States of America
9.50
8.10
5.22
4.20
2.27
1.60
0.85
0
2
4
6
8
10
ExtensionFTE
5
(3)
(19)
(10)
(10)
(9)
(6)
(4)
( ) is number of specialists
Total number of people: 61
6. States that have a university Extension swine specialists
with a PhD in swine reproductive physiology*
* As of: June 4, 2014 6
IL – Knox
IN – Stewart
PA – Hagan
VA – Estienne
**
**
** **
0.6
0.15
0.6 0.25
7. In summary, universities have significant gaps in
providing help to pork producers who want
assistance in solving reproductive problems.
• Number of states without an Animal Science
Extension Swine Specialists: 32
• Total number of breeding animals in states
without an Animal Science Extension Swine
Specialists: 622,600
• Total number of breeding animals in states
without an academically trained (PhD) Extension
Swine Reproductive Physiologists:
– 4,813,000
– 84.6% of breeding animals
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8. Lead author:
Dr. Donald Levis
(Reproductive physiologist)
Levis Worldwide Swine Consultancy
• Dr. Mark Estienne
(Reproductive physiologist)
Virginia Tech University
• Dr. Wayne Singleton - retired
(Reproductive physiologist)
Purdue University
• Dr. Rodney Baker
(Swine veterinarian)
Iowa State University
• Dr. Timothy Safranski
(Swine genetics)
University of Missouri
• Dr. William Flowers
(Reproductive physiologist)
North Carolina State University
• Dr. Robert Knox
(Reproductive physiologist)
University of Illinois
• Dr. Kenneth Stalder
(Swine genetics)
Iowa State University
• Dr. Mark Knauer
(Swine genetics)
North Carolina State University
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Committee chair: Dr. David Meisinger, US Pork Center of Excellence
9. Objectives of the computer format and preparation
of the information:
Keep everything as simple as possible
Make the computer program highly user friendly
and as simple as possible (no fancy animation
stuff that takes up a lot of memory space)
Make the appearance of the information as
simple as possible
Answer the question in simple terms and
provide documentation for the answer
Search document for specific term
Have the information readily available to all
pork producers and allied industries.
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10. Total number of questions and answers
Item Number of questions and answers
Gilt reproductive problems
• Puberty attainment 189
• Too small of gilt pool 92
• Low litter size 52
• Low farrowing rate 64
Sow reproductive problems
• Low sow longevity 104
• Low farrowing rate 121
• Low litter size 77
• Extended weaning-to-estrus interval 56
• High pre-weaning mortality 189
Semen quality problem
• Low farrowing rate/Low litter size 89
Total 1,033
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11. User fee
• Pork Industry License
– United States and Canada: $75 per year
Companies with multiple users should purchase one
license per every three users.
– Other countries: $500 per year
Companies with multiple users should purchase one
license per every three users.
• Academic License
– University or community college educator: Free
Only available during the semester/quarter the class
is taught.
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12. To order annual license:
http://www.usporkcenter.org/Store/default.aspx
If questions, contact:
Chelsey Branderhorst
USPCE – Program Manager
Telephone: 515-223-2641
Email: cbranderhorst@usporkcenter.org
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13. Financial sponsors
• National Pork Checkoff
• Iowa Pork Producers Association
• Illinois Pork Producers Association
• North Carolina Pork Producers Association
• Hog Slats from North Carolina
• Tri-M from Iowa
• ReproQuest from Wisconsin
• Genetiporc USA from Minnesota
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