Donald G. Levis, Ph.D.
Phone: (402) 624-8030
Fax: (402) 624-8010
E-mail: dlevis@unlnotes.unl.edu
Areas of Expertise
Management
of boars, sows and gilts for reproductive efficiency
Artificial Insemination of Pigs
Design and Management of Swine Breeding-gestation Facilities
Current Research Focus
The effect
of organic selenium on sperm production and semen quality
The effect of adding oxytocin to boar semen during the summer months
on farrowing rate and litter size
PowerPoint Presentations
Take Home
Tips to Increase Reproductive Efficiency January
16, 2002
Ways to Improve Reproductive Performance of Your
Herd January
22, 2002
New Techniques in Reproductive Management January
23, 2002
Factors
to Increase Farrowing Rate and Litter Size March
7, 2002
Improving Reproductive Efficiency When Pen Mating
March 12,
2002
New Reproductive Technologies for the A.I. Industry,
NSIF
2002
Developing a Checklist to Troubleshoot a Reproductive
Problem Due to A.I., 2003 Winter
Producer Education Meetings, January
15, 2003
Alternatives to Housing Sows in Individual Stalls,
2003 Winter Producer Education
Meetings, January
15, 2003
What Should I Do When the Weaned Sows Do Not Cycle?,
2003 Winter Producer Education
Meetings,
January 29, 2003
Maximizing Litter Size Born Live, 2003
Winter Producer Education Meetings,
January 29, 2003
What Should I Do When Weaned Pigs Do Not Cycle? Buckeye
Barrow Boosters Meeting, Ohio Pork Congress, February 7, 2003
Investigation into the Pregancy
Failure of Sows, 2003 Winter
Producer Education Meetings, March
13, 2003
Word Documents
Use of Intra-uterine Insemination
of Pigs: Pros, Cons & Economics January
25, 2002
Some Common Problems When Using Artificial Insemination
of Swine January 25, 2002
Biological & Management Factors Influencing Number
& Timing of Inseminations January
25, 2002
How Reproductive Physiology, Anatomy, Environment,
and Various Management Aspects Influence On-farm Reproductive Performance
of the Boar January
25, 2002
Housing & Management Aspects Influencing Gilt
Development & Longevity January
25, 2002
How Reproductive Physiology, Anatomy, Environment,
and Various Management Aspects Influence On-farm Reproductive Performance
of Sows & Gilts January
25, 2002
Top 10 Rules for a 90% Farrowing Rate January
25, 2002 / PDF file
version
What's New with Seasonal Infertility? January
25, 2002
On-farm Boar Training
Pen & Semen Collection Area, AI
School July 24,
2002
On-farm Training
of Boars to Mount a Dummy Sow, AI
School July 24, 2002
On-farm Evaluation
of Semen: Motility, Morphology & Contamination, AI
School July 24, 2002
Use of Additives
to a Dose of Boar Semen, AI
School July 24, 2002
Use of Hands-free
Insemination Devices, AI
School July 24,
2002
Biological &
Management Factors Influencing Number & Interval of Time between
Aritificial Inseminations, AI
School July 24, 2002
Emerging Technologies
to Enhance Reproductive Performance, AI
School July 24, 2002
New Reproductive Technologies for the A.I. Industry,
NSIF
2002
Excel Documents
A.
I. Equipment Costs
Spreadsheet which estimates the cost of equipment and supplies used
for an artificial insemination program
Intrauterine
- A. I. Form
Spreadsheet which allows the user to input various values
to estimate the cost and return when using an intrauterine insemination
catheter
SEW (Segregated
Early Weaning) Model
Spreadsheet which allows the user to input various types of information
to estimate the cost and return of operating a segregated-early weaning
operation
