Slide 1

I NSEMINATION T IMING S UGGESTIONS

Slide 2

Many studies conducted by renowned experts in the field confirm that, the shorter the weaning-to-estrus interval (WOI), the longer and later the ovulation period. This means that sows coming into heat earlier (post weaning), will ovulate later and longer. Days After Weaning Avg. Duration of Ovulation Avg. Duration of Estrus

Slide 3

The following slides are meant to offer graphical explanations of the previous statements. They also offer a definitive proof of the effectiveness of our recommended breeding protocol.

Slide 4

The vertical bar denotes the duration of estrus in Hours.

Slide 5

The horizontal bar represents the day strong standing heat is observed after weaning. This is what we are looking for when we perform heat detection. It is important to take note of the weaning dates so we can count properly. Days After Weaning

Slide 6

The combined total of the pink and purple bars represent the average duration of estrus of sows (in hours) in relation to the number of days after weaning. The purple section represents the average time of ovulation. Avg. Duration of Ovulation Avg. Duration of Estrus

Slide 7

We can now see that sows coming into heat 3 days after weaning will ovulate later and will have longer ovulation periods compared to days 4-9. Both estrus and ovulation cycles become shorter as the days after weaning become greater. Days After Weaning Avg. Duration of Ovulation Avg. Duration of Estrus

Slide 8

Twice per day: Since the interval between heat detections is about 12 hours, we use the 6 hour line to indicate the average mean duration of heat for the group of sows. Days After Weaning Avg. Duration of Ovulation Avg. Duration of Estrus

Slide 9

Once per day: Since the interval between heat detections is about 24 hours, we use the 12 hour line to indicate the average mean duration of heat for the group of sows Days After Weaning Avg. Duration of Ovulation Avg. Duration of Estrus

Slide 10

Knowing when ovulation occurs is very important since breeding too early or too late will cause us to miss ovulation. This can negatively affect conception rates and litter-size; but how can we determine when the sow will ovulate?

Slide 11

Proper heat detection (recommended twice daily) is where we look for signs of strong standing heat which will help us determine WHEN the sow will ovulate. HEAT DETECTION ESTRUSOVULATION

Slide 12

After knowing when sows ovulate, when is the best or proper time to breed then? An effective breeding schedule should be set up on an animal by animal basis, individualized in such a way that an adequate amount of semen is delivered to the UTJ just before ovulation occurs. This would allow the sperm to be released, capacitate, and be fertile at the right time. Not all animals ovulate at the same time! Breeding too early causes majority of the sperm to die before the egg cells are released; resulting in very low conception. Breeding too late may cause you to miss the ovulation cycle completely, or only fertilize a few egg cells; hence producing small litters.

Slide 13

24 Hrs. 12 Hrs. 24 Hrs. Days After Weaning Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus This slide shows the efficiency of our recommended timing and how two inseminations overlap ovulation. It represents our suggested delay(s) for the first service at 24, 12, or 0 hours and a repeat insemination 8 hours later.

Slide 14

On days 3 & 4 (after weaning), we delay our first service by 24 hours and follow up with a second dose 8-12 hours later. 24 Hrs. Days After Weaning Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus

Slide 15

On days 5 & 6 (after weaning), we delay our first service by 12 hours and follow up with a second dose 8-12 hours later. 12 Hrs. Days After Weaning Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus

Slide 16

On days 7-9, gilts, and repeats, we delay our first service only long enough for the animals to relax from the boar exposure during heat detection (let them go into refractory heat); then we then follow up with a second service 8-12 hours later. Days After Weaning Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus

Slide 17

In summary, our recommended timing protocols combine proper heat detection with the recognition of weaning-to- estrus intervals (WOI). Following them will effectively deliver semen at the best time for a successful breeding program. 24 Hrs. 12 Hrs. 24 Hrs. Days After Weaning Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus

Slide 18

Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus Proper timing with an 8 hour repeat, using ONCE per day heat detection. Days After Weaning 24 Hrs. 12 Hrs. 24 Hrs. Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus

Slide 19

24 hour initial delay on 3 & 4 day animals, heat detecting only ONCE per day. Days After Weaning 24 Hrs. Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus

Slide 20

12 hour initial delay on 5 & 6 day animals, heat detecting only ONCE per day. Days After Weaning 12 Hrs. Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus

Slide 21

0 hour initial delay on 7-8-9 day animals, heat detecting only ONCE per day. Days After Weaning Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus

Slide 22

Proper timing with 8 hour repeat, using ONCE per day heat detection. (Animated) Days After Weaning 24 Hrs. 12 Hrs. 24 Hrs. Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus

Slide 23

The following slides compare our recommended timing protocols to common AI/breeding schedules of farms throughout the world; and also show the difference between once per day and twice per day heat detection. Days After Weaning ONCE A DAY HEAT DETECTION, PROPER DELAY WITH 8 HR. REPEAT Days After Weaning TWICE A DAY HEAT DETECTION, PROPER DELAY WITH 8 HR. REPEAT We have overlaid insemination bars that denote the following: EXCELLENT chance of conception! MARGINAL 50% chance of success. VERY POOR! A waste of semen. Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus

Slide 24

Days After Weaning ONCE A DAY HEAT DETECTION, 0 DELAY WITH 8 HR. REPEAT O hour initial delay with 8 hour repeat, once per day heat detection TWICE A DAY HEAT DETECTION, PROPER DELAY WITH 8 HR. REPEAT Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus Days After Weaning

Slide 25

Immediate insemination with 8 hour repeat, twice per day heat detection Days After Weaning TWICE A DAY HEAT DETECTION, 0 DELAY WITH 8 HR. REPEAT TWICE A DAY HEAT DETECTION, PROPER DELAY WITH 8 HR. REPEAT Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus Days After Weaning

Slide 26

Immediate insemination with a 24 hour repeat, once per day heat detection Days After Weaning ONCE A DAY HEAT DETECTION, 0 DELAY WITH 24 HR. REPEAT TWICE A DAY HEAT DETECTION, PROPER DELAY WITH 8 HR. REPEAT Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus Days After Weaning

Slide 27

Immediate insemination with a 24 hour repeat, twice per day heat detection Days After Weaning TWICE A DAY HEAT DETECTION, 0 DELAY WITH 24 HR. REPEAT TWICE A DAY HEAT DETECTION, PROPER DELAY WITH 8 HR. REPEAT Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus Days After Weaning

Slide 28

12 hour initial delay with 8 hour repeat, once per day heat detection Days After Weaning ONCE A DAY HEAT DETECTION, 12 HR. DELAY WITH 8 HR. REPEAT TWICE A DAY HEAT DETECTION, PROPER DELAY WITH 8 HR. REPEAT Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus Days After Weaning

Slide 29

12 hour initial delay with 8 hour repeat, twice per day heat detection Days After Weaning TWICE A DAY HEAT DETECTION, 12 HR. DELAY WITH 8 HR. REPEAT TWICE A DAY HEAT DETECTION, PROPER DELAY WITH 8 HR. REPEAT Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus Days After Weaning

Slide 30

12 hour initial delay with 24 hour repeat, once per day heat detection Days After Weaning ONCE A DAY HEAT DETECTION, 12 HR. DELAY WITH 24 HR. REPEAT TWICE A DAY HEAT DETECTION, PROPER DELAY WITH 8 HR. REPEAT Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus Days After Weaning

Slide 31

12 hour initial delay with 24 hour repeat, twice per day heat detection Days After Weaning TWICE A DAY HEAT DETECTION, 12 HR. DELAY WITH 24 HR. REPEAT TWICE A DAY HEAT DETECTION, PROPER DELAY WITH 8 HR. REPEAT Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus Days After Weaning

Slide 32

24 hour initial delay with 8 hour repeat, once per day heat detection Days After Weaning ONCE A DAY HEAT DETECTION, 24 HR. DELAY WITH 8 HR. REPEAT TWICE A DAY HEAT DETECTION, PROPER DELAY WITH 8 HR. REPEAT Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus Days After Weaning

Slide 33

24 hour initial delay with 8 hour repeat, twice per day heat detection Days After Weaning TWICE A DAY HEAT DETECTION, 24 HR. DELAY WITH 8 HR. REPEAT TWICE A DAY HEAT DETECTION, PROPER DELAY WITH 8 HR. REPEAT Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus Days After Weaning

Slide 34

24 hour initial delay with a 24 hour repeat, once per day heat detection Days After Weaning ONCE A DAY HEAT DETECTION, 24 HR. DELAY WITH 24 HR. REPEAT TWICE A DAY HEAT DETECTION, PROPER DELAY WITH 8 HR. REPEAT Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus Days After Weaning

Slide 35

24 hour initial delay with a 24 hour repeat, twice per day heat detection Days After Weaning TWICE A DAY HEAT DETECTION, 24 HR. DELAY WITH 24 HR. REPEAT TWICE A DAY HEAT DETECTION, PROPER DELAY WITH 8 HR. REPEAT Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus Days After Weaning

Slide 36

Perfect heat detection (impossible to achieve but fun to look at); immediate insemination with an 8 hour repeat. Days After Weaning PERFECT HEAT DETECTION, 0 DELAY WITH 8 HR. REPEAT TWICE A DAY HEAT DETECTION, PROPER DELAY WITH 8 HR. REPEAT Second Insemination First Insemination Avg. Duration of Ovulation Avg. Duration of Estrus Days After Weaning

Slide 37

SUMMARY FOR THIS SECTION ASICs Suggested Timing Protocols ASICs protocols are based on dry days post weaning. ASICs protocols allow for individualized and accurate timing on an animal by animal basis. ASICs methods are customized for the Absolute technology and are not always suitable for traditional catheters. ASICs protocols are proven to work! Please try to incorporate them in your farm; you will most likely NOT be disappointed If you disagree with our methods, try it your way; but come back to this section if you do not get the desired results. Press X under sign out to go the Main Menu.