A Sample

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Bright Raven
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A Sample

Postby Bright Raven » Mon Dec 11, 2017 9:01 am

The paucity of data points will make this only anecdotal. I have bred 18 of my 21 subjects. All breeding has been on observed natural heats. Due to circumstances that arise, some I bred early. Some I bred late. If they were bred less than 8 hours following the onset of standing heat = early. If they were bred greater than 8 hours following the onset of standing heat = late.

The reason I am doing this is because I had about 4 or 5 that I didn't get to until they were very late. I have about an 80 % conception rate and have always been on the early side of the bell curve. Going to be fun.

First one was bred early. She is 22 days this morning and quiet as a mouse. Next one is 21 tomorrow and I bred her late.
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True Grit Farms
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Re: A Sample

Postby True Grit Farms » Mon Dec 11, 2017 10:13 am

80% is great, I wouldn't change a thing.
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Re: A Sample

Postby Bigfoot » Mon Dec 11, 2017 10:14 am

I usually use cheap semen------Breed on observed heat, and then breed again 12 hours later. i don't do the whole herd though. Just a few. 80% is awesome. Don't change.
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Re: A Sample

Postby wbvs58 » Mon Dec 11, 2017 6:41 pm

Keep us posted Ron, I'll be interested to hear how you go with the early v late.

Ken
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Re: A Sample

Postby Franke » Mon Dec 11, 2017 10:36 pm

Good job on the percentage. I know a lot of people would be enthused with those results.
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Re: A Sample

Postby Jeanne - Simme Valley » Tue Dec 12, 2017 5:50 pm

the old saying is: bred early in heat cycle (still standing) higher % a heifer, but lower conception
Bred late, higher conception, but more chance of being a bull.
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Re: A Sample

Postby gizmom » Tue Dec 12, 2017 7:50 pm

80% I would be doing a happy dance! Great job!

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Re: A Sample

Postby Bright Raven » Tue Dec 12, 2017 8:23 pm

gizmom wrote:80% I would be doing a happy dance! Great job!

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Thank you. I expect to be 100 %. I put a tremendous effort into it. I log their estrus cycles all fall. My heat detections are thorough. All on natural observed heats. I am diligent in semen handling and my technique is good. During breeding season, I am a devout convert to the Bovine Goddess of fertility. Lol. But there are little Devils out there that are beyond my control. Just look at that one hanging out as my avatar.
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Re: A Sample

Postby gizmom » Wed Dec 13, 2017 6:01 pm

Our herdsman Mike has 100% conception rate every year, if they don’t take AI they go to the barn he doesn’t own a bull. He has been Doing A I on his herd for over 20 years so he has a very maternal herd of about 40 cows. We are happy with anything over 70% but we are breeding over 100 head so don’t have the time to watch for heats we sync a large number, the heifers are bred if they have a red patch. We have 30 or so to set up to put eggs in. I honestly am not that good at AI I am trying to do more now that I am retired but honestly it’s hard for me to do it when Mike is standing there. Not because he makes me nervous, he is extreamly helpful but because I know he is so dang good, and conception would be so much higher with him doing it. Hopefully I will get more proficient.

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Re: A Sample

Postby Bright Raven » Wed Dec 13, 2017 6:04 pm

gizmom wrote:Our herdsman Mike has 100% conception rate every year, if they don’t take AI they go to the barn he doesn’t own a bull. He has been Doing A I on his herd for over 20 years so he has a very maternal herd of about 40 cows. We are happy with anything over 70% but we are breeding over 100 head so don’t have the time to watch for heats we sync a large number, the heifers are bred if they have a red patch. We have 30 or so to set up to put eggs in. I honestly am not that good at AI I am trying to do more now that I am retired but honestly it’s hard for me to do it when Mike is standing there. Not because he makes me nervous, he is extreamly helpful but because I know he is so dang good, and conception would be so much higher with him doing it. Hopefully I will get more proficient.

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Is he 100 % on first service? I am 100 % too but last year I had to go back on 3 and reservice. So far, I have not had to cull based on failure to stick to AI.
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Re: A Sample

Postby wbvs58 » Wed Dec 13, 2017 6:50 pm

Ron, I think your results are about as good as it gets, your attention to detail is what is getting you the results you are to be congratulated. I think there are two separate entities in an AI programme, the 1st is getting the timing right and the 2nd is depositing the semen in the most advantageous spot, both are of equal importance.
In a synchronised programme when large numbers are done not all cows get done at their optimal time, I think this is why natural heats comes up trumps.

Ken
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Re: A Sample

Postby gizmom » Wed Dec 13, 2017 7:00 pm

Ron

Sorry I didn’t mean to imply he was 100% on first service, just that he is 100% AI he doesn’t have a bull. I agree with wbvs58 your results are about as good as it gets. He is dead on as far as synchronized programs as well, although they work they won’t get you the conception rates your getting with breeding on natural heat. You should be very proud of your results, they are the result of hard work and diligence.

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Re: A Sample

Postby Bright Raven » Fri Dec 15, 2017 5:05 pm

Report as of 12/15/17.

6 have passed 21 days.
1 came into heat on day 20.

Score 6 to 1

4 of the 6 were short
2 of the 6 were long
The miss was a long. 15 hours after first observed stand.
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Re: A Sample

Postby wbvs58 » Fri Dec 15, 2017 7:08 pm

Good thanks Ron, I like to hold off on inseminating but my trigger finger gets itchy and I usually do them earlier than I intend but if I hold off for 6 hours I think it helps.

Ken
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Re: A Sample

Postby Bright Raven » Fri Dec 15, 2017 7:12 pm

wbvs58 wrote:Good thanks Ron, I like to hold off on inseminating but my trigger finger gets itchy and I usually do them earlier than I intend but if I hold off for 6 hours I think it helps.

Ken


Funny how that works. Will keep you informed.
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