Conception Rates for TAI

Help Support Steer Planet:

pweaver

Well-known member
Joined
Jan 26, 2009
Messages
155
I'm sure this has been covered in the past, but thought I might get some new, updated info.  For those of you that TAI only after using CIDR protocol, what is your conception rate?  Do you do the AI'ing or have an AI tech do it?  Do you manage your herd any differently with TAI than you would if you heat detect and breed?  How many hours after pulling CIDR do you TAI?  I suppose you give a shot of GnRH when you TAI breed.
 

hedgesjp1985

Well-known member
Joined
Feb 4, 2012
Messages
99
I've used the ten day CIDR sync for four years. We give gnrh 18 hours pre breeding.  That's the only difference I've noticed from most protocols I've seen.  We've had roughly 71% success with it.  I use it like a clean up, once June first comes if I haven't bred a cow yet they get a CIDR.
 
J

JTM

Guest
We have had great success with timed AI. Our conception rates last year were around 75%. We hired our vet to come out and breed them. We basically put the Cidrs in, take them out and give a lutalyse shot 7 days later and then breed them two days after that. At breeding we do give them GnRh.
 

ferkj

Well-known member
Joined
Sep 6, 2009
Messages
194
We used 5 day protocol this year and had 7 of 9 heifers take and 9 of 10 cows.  Gave 2 shots of lutalyse when cidrs pulled. Bred the heifers at 72 hours and cows at 80 hours. Most of them showed standing heat at time of breeding. If I would change anything may breed heifers at 68 hours. The 2 heifers that breed had less tone to cervix than the others.
 

shortybreeder

Well-known member
Joined
Feb 23, 2015
Messages
476
This year we decided to give the 5 day protocol with a 2nd Lut 24 hours after the 1st and GnRH 12 hours before breeding, and we got 114% conception (including 2/2 successful ETs) so far this year... In past years we usually ran 60-75%. For some reason we just got extremely lucky and 70% of the herd is due within an 8 day window, the remaining 30% are either still waiting to calve, or too short bred to pg check. I can't stress enough how atypical these results are though  (thumbsup)
 

ferkj

Well-known member
Joined
Sep 6, 2009
Messages
194
Cabanha Santa Isabel - BR said:
Please, you all can explain and describe pass to pass all protocol.
I'm having problems with my TAI.
Would to be great experiment a new protocol.
Thank you all.

Are you asking exactly what protocol we used when setting up the herd for timed AI?
 

Tyler

Well-known member
Joined
Jun 6, 2012
Messages
115
Location
Mitchell, SD
The Cattle Visions app for my iPhone is very handy.  It has the 7 day protocol I use in calculator form and I have had over 80% conception rate the past few years with TAI.  Follow the directions down to the hour, I think that is very important.

The cows need to be in good enough shape and far enough postpartum in order to cycle. The borderline skinny and the ones that are less than 45 days post calving seem to be the only ones that drag the percentage down for me.

I also still watch the cows the for the 24hrs before and after the TAI, I will breed about 10% that come in early the evening before.  There will also about 10% that are coming into heat as you breed but I assume the GnRH takes care of them (I have bred those cows later a second time too.)

Anybody else find the Cattle Visions app? 

It has a gestation calculator, a TAI calculator and I really like the semen tank inventory feature.
 

Till-Hill

Well-known member
Joined
Sep 14, 2010
Messages
690
Location
Waterville, Iowa
We bring in all the cows say on Monday and lute and sticker them. I watch and breed till following Monday when we GnRH and insert CIDR in non-responders. Sunday we lute, Monday we pull CIDR and Wednesday we breed all with GnRH. All shots/breeding same time of day. Last year we calved from 3/20-4/25, year before 3/7-4/22, year before 3/1-4/2 and we have been backing cows off a bit every year but good mineral ALL YEAR LONG never run out. We use Aval-4 but other good ones out there. Cows are vac'd at preg check with 6vl5 and again pre calving with scour gaurd and at that time they get Multimin 90.

Our cows eat hay/grass and we have been intentionally backing calving date back as more cows/less facilities for calving! Also this year was first year for more than 1 calf out of herdbulls and we ended up with 3 out of 17 I think it was.

I
 

ferkj

Well-known member
Joined
Sep 6, 2009
Messages
194
We did 5 day cidrs protocol this year and we're 81%.  We put cidrs in Sunday with 2ml GnRH pulled Friday with 2 doses lutalyse in different locations. A few heifers were standing at 48 hrs and were bred at 60 hrs. Rest of heifers were bred at 72 hours and cows were bred at 80 hours. All were given 2 ml GnRH at breeding. We weren't exactly hour on the hour  but within a few. Put cidrs in approximately 7 am and pulled around 9-10.  If you're doing a large number they're gonna be off by that much anyway due to time to work them through. 

As Till Hill said good body condition on the cows and vitamins and minerals are critical for success with breeding.  Hardly any area has adequate levels of all trace minerals in forage alone.
 
Top