100% AI?

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gizmom
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Re: 100% AI?

Postby gizmom » Mon Jun 18, 2018 5:13 pm

Our herdsman Mike has not had a bull since his dad died and that has been over 20 years ago. He has a 90 day calving cycle. He runs 20 to 30 mamma cows plus works with us and does AI for other farms so it is possible to achieve 100% AI like anything else you just have to work at it.

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Re: 100% AI?

Postby True Grit Farms » Mon Jun 18, 2018 7:47 pm

hornedfrogbbq wrote:Exactly. I'm am mostly concerned with the highest pregnancy rate in the AI session regardless of the AI taking or the bull doing it. The bulls we buy are as good or better than most (IMHO...) and have very unique traits we are trying to foster in the retention of our heifers. I'm indifferent as to the AI session impregnating the cow or the bull later that day. We typically run about a 60-74% success rate in our AI program. I'd like to get 80% or better bred up in that 3 day-ish window.

We are AI'ing to bring in other genetics and target specific things we want out of specific cows. That being said, and not to have any ego in this because we screw-up all the time but we go through over 10,000 bulls for sale every year and target very specific bulls to buy. We buy all over the nation and we really like what we buy (or, when we make a mistake, they last one year and they are out of our program).

We have two Journey sons right now that won't make it a second year with us. Good bulls, registered and from a great cow family each...but we bought them young and knew we were taking a chance. We haven't liked the way they have grown out.

Bottom line: we can never "recapture" the 21 days if a cow doesn't get pregnant early in the season. That is at least 40lbs/head we will not sell since we sell all our steers at the same time. An increase in 10% on my conception rate around the AI heat will add over 1000lbs to our sales potentially. It will tighten up our calving window and it will make our calves more uniform if more are born at the same time as the AI.

Who knows...it may not work! We are just experimenting.

Why even bother with the expense and hassle of AI? I like the 7 day protocol deal and think that will tighten up your calving season. Just turn the bulls in on day 6 and sit on the porch sipping sweet tea.
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Re: 100% AI?

Postby hornedfrogbbq » Mon Jun 18, 2018 10:06 pm

Maybe we will try that next year?!
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Re: 100% AI?

Postby True Grit Farms » Mon Jun 18, 2018 10:22 pm

hornedfrogbbq wrote:Maybe we will try that next year?!

Using a 7 day protocol and putting the bulls in when you pull the cidr's, I think if you had the bull power the results would be 90%+ after the cows second cycle.
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Re: 100% AI?

Postby Son of Butch » Tue Jun 19, 2018 9:21 pm

Reasonable expectation/goal of 95% pg in 65 day window for 100 cow herd

67% conception on 1st service = 67 pg out of 100 cows
63.5% conception on the 33 second service cows 33 x .635 = 21 pg + 67 pg = 88 pg after the cows second cycle
58.5% on the 12 third service cows 7 pg cows + 88 pg = 95% pg in 3 cycles (65 days)

5 cull cows after 3rd cycle
OR
19 pg out of every 20 cows in herd after 3 cycles
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Re: 100% AI?

Postby hornedfrogbbq » Wed Jun 20, 2018 3:26 pm

Son of Butch wrote:Reasonable expectation/goal of 95% pg in 65 day window for 100 cow herd

67% conception on 1st service = 67 pg out of 100 cows
63.5% conception on the 33 second service cows 33 x .635 = 21 pg + 67 pg = 88 pg after the cows second cycle
58.5% on the 12 third service cows 7 pg cows + 88 pg = 95% pg in 3 cycles (65 days)

5 cull cows after 3rd cycle
OR
19 pg out of every 20 cows in herd after 3 cycles


What ratio of bulls to cows are you assuming with this?
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Re: 100% AI?

Postby ez14. » Wed Jun 20, 2018 9:35 pm

hornedfrogbbq wrote:
Son of Butch wrote:Reasonable expectation/goal of 95% pg in 65 day window for 100 cow herd

67% conception on 1st service = 67 pg out of 100 cows
63.5% conception on the 33 second service cows 33 x .635 = 21 pg + 67 pg = 88 pg after the cows second cycle
58.5% on the 12 third service cows 7 pg cows + 88 pg = 95% pg in 3 cycles (65 days)

5 cull cows after 3rd cycle
OR
19 pg out of every 20 cows in herd after 3 cycles


What ratio of bulls to cows are you assuming with this?
I think he's talking AI
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Re: 100% AI?

Postby hornedfrogbbq » Thu Jun 21, 2018 12:14 am

If AI, what process do you follow? Timed AI? Standing heat detection? Just Lut them?
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Re: 100% AI?

Postby Son of Butch » Thu Jun 21, 2018 4:12 am

southernultrablack wrote:I will have 13 cows to breed this fall. I intend to synchronize them and have them bred on timed AI.
I will catch the stragglers on observed heats.
How realistic is it to expect to get them all bred this way?
Any pointers/tips for going 100% AI?

Cow age and reproductive health is always 1/2 the equation so all (no) 12 of 13 (yes)
100% would be ideal - 12 of 13 is a very reasonable achievable goal for either A.I. or a bull
61.5% conception on 1st service = 8 pg of 13
60% on the 5 second service cows = 3 pg
50% on the final 2 cows = 1 pg
12 of 13 pg in 65 days and it will take 20 straws of semen to do it and at $25 per straw that is $500 in semen alone

Your success on 2nd and 3rd services will depend on your ability to observe heat and get semen into them on time.
Bulls have a major advantage in that... (catching the stragglers)
AI's advantage is with timed 1st service AI you can cut your bull power in half (or more)
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Re: 100% AI?

Postby angus9259 » Sat Jun 23, 2018 8:00 am

I sell a lot of bulls to very frustrated people who had this exact plan.

Good luck.
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Re: 100% AI?

Postby Son of Butch » Sat Jun 23, 2018 8:34 am

angus9259 wrote:I sell a lot of bulls to very frustrated people who had this exact plan.

Good luck.

I'm sure that is very true and probably a few when the plan does work too.
It's never as easy as it is on paper. :)
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Re: 100% AI?

Postby chevytaHOE5674 » Sun Jun 24, 2018 10:37 pm

4 out of the last 5 years we did 100% AI, first four years were 100%, 85%, 90%, 95% respectively in 1 cycle. Those years were all synced and bred on observed standing heat. My wife spent a lot of time in the field watching cows.

Last year because of time constraints, a pregnant wife and some other things we synced then bred on timed AI and had 66% after the first cycle. When then bought a bull for cleanup, this year we bought a 2nd bull and are skipping AI all together because the time isn't there right now.

Moral of the story for me is if you want to rely on AI then don't go timed. Haha
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Re: 100% AI?

Postby hornedfrogbbq » Sun Jun 24, 2018 11:00 pm

We have done a timed AI for 6 years. Best outcome we had was 75%-ish.
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Re: 100% AI?

Postby MRRherefords » Tue Jul 10, 2018 4:25 pm

We did timed ai on 8 of ours this year with 100% conception. We also did several more by natural heat detection and went 100% on them too.
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Re: 100% AI?

Postby SPH » Tue Jul 10, 2018 10:19 pm

We do timed AI for 1 heat cycle with our top early calving females and our yearling heifers then turn all the females out with the bulls for the summer. Our conception rate is usually pretty good but will vary from year to year but at least you get your females cycling and can tighten up your calving interval as the cleanup bulls usually get them the next time if they don't settle to the AI service. We're small enough we could technically do 100% AI if we wanted to but having a good cleanup bull on hand keeps that calving interval tight and our current herd sire which is a bull we kept from an AI mating throws just as good if not better calves than we get AI. He's in the pasture for his 4th breeding season right now and we got him collected this spring so we can use him AI in the future.

When we look at AI bulls the first place we look at is the maternal pedigree. Like to see some longevity and proven performance in the cows behind the bull. If you are breeding seedstock you want good cow lines behind the bull you are using.
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