Jenna Parnell

Agricultural Leadership

ARTIFICIAL INSEMINATIO

NA.I.

General definition-the introduction of semen into the oviduct or uterus by some

means other than sexual intercourse. Ag definition- the use of semen from a genetically superior male to inseminate a female resulting in a genetically superior

offspring.

WHAT IS ARTIFICIAL INSEMINATION?

99% of female swine are artificially inseminated in the world

50% farrow with 10 or more piglets per litter

Sexing sperm can be done in swine but a very slow process & not used often

Frozen sperm not used in the swine industry

QUICK FACTS

Genetic Improvement Disease control

Cost effectiveness Less stress on gilt/sow (can use larger

boar on smaller gilts)Safety

Reduce number of boars needed on farm15-20 doses per collection

ADVANTAGES

Time Required (in minutes) per female to complete breeding

Number of females Natural Service Artificial Insemination

1 23.4 34.6

2 24.4 25.7

3 24.7 21.7

4 24.1 19.8

5 23.4 18.9

6 23.9 18.0

7 22.9 17.6

8 22.8 17.3

TIME SAVING

Tubbs, Rick. Swine Production Management. Helping clients implement an artificial insemination program.

Human ErrorEquipment needed

Time/Labor

Careful herd observation required

Cannot freeze semen due to decreased fertility

Higher level of management BUT better record keeping

DISADVANTAGES

Collection:DummySpace

Bottles/CapsExtender

ThermometerDistilled Water

MicroscopeStorage

A.I. Pipettes/cathetersSynchronization

SUPPLIES NEEDED

Collection:

Every other day

1-5 semen collections per week

50-500 mL per collection

150-750 (million/mL) sperm concentration

15-20 doses per collection

Volume varies by breed, age, and collection frequency

COLLECTION INFORMATION

PROCESSING THE SEMEN

The semen is extended

Extender dilutes the semen so that it can be used for many females

Extender must be added when semen and extender is within 3 degrees of each other

Look at semen under the microscope

Bottle and store semen until needed or shipped

SUPPLIES USED

Storage Temperature 60-65 degrees Fahrenheit

Typically used within three-seven days from collection

Do not expose to sunlight

Temperature fluctuations shorten semen life

Rotate bottles 3-4 times daily

STORAGE OF SEMEN

Increased activity

Mounting

Swelling and redness of vulva

Discharge

Standing heat

Best indicator of estrus

*Takes time to catch in heat

Return to heat every 21 days

HEAT DETECTION

Gilts- 12 hours after heat detection

Sows- 24 hours after heat detection

Typically use 2-3 doses per female (12 hour difference)

Re-check every 21 days for recycling

BREEDING

QUESTIONS???