shorthorn heifer heat detection

[OLD WORLD SHORTIE]

Just want to give eveyone a run down of how i do this. So if you have any tips or tricks or concerns let me know. I welcome any advise available.

She has been showing signs of heat all morning, now all of a sudden as i type this on my phone. She was mounted by a bred cow and stood there for her for about two seconds until the bred cow got off. If that isnt standing heat then i dunno what it is.

So the breeding plan will be noon and 6pm central time to Jake's Proud Jazz

 

[OLD WORLD SHORTIE]

just got mounted by a totally different bred cow, for sure she is in standing heat, i would say the very biginning of it but she is.

 

[mark tenenbaum]

I did the same thing-a standing heat-is something common to cattle-and indicates it is time to breed in a prescribed amount of time. O0 (lol)

 

[savaged]

Don't breed her at noon unless you just want practice.

Go for as late this evening as you can (9:00 / 10:00 p.m.).  If you must breed her at 6:00 give GnRh as well.

Good luck.

 

[OLD WORLD SHORTIE]

I dunno if its me weird but usually when we breed earlier in the heat cycle we get a better percentage of heifers.

http://www.cattletoday.com/archive/2000/January/Cattle_Today72.shtml

The average time a female is in standing heat is about 12 to 18 hours; cows usually ovulate 25 to 30 hours after first standing. The life of an egg, once released, is six to 10 hours.

On the other side of the fertilization equation, sperm cells have to be in the reproductive tract for about five to six hours before they are capable of fertilization. So, in an ideal world, insemination should take place six to eight hours before ovulation.

So if she came into heat at 9am today that means i should breed her from 2am to 4 am. I dunno about that.

Im not really into the shots, most of mine take when i see them actually in  standing heat and i am positive they are in heat. If they didnt take it is because i didnt watch my cattle. I have seen too many people screw up their heifer with giving too many shots. Im not saying one shot is going to screw her up but i just have seen some people try and time heats this year what a disaster that was. Only reason im gonna be giving a shot is because someone's bull jumped the fence and that hasnt happened in years.

 

[DRB]

I dunno if its me weird but usually when we breed earlier in the heat cycle we get a better percentage of heifers.

http://www.cattletoday.com/archive/2000/January/Cattle_Today72.shtml

The average time a female is in standing heat is about 12 to 18 hours; cows usually ovulate 25 to 30 hours after first standing. The life of an egg, once released, is six to 10 hours.

On the other side of the fertilization equation, sperm cells have to be in the reproductive tract for about five to six hours before they are capable of fertilization. So, in an ideal world, insemination should take place six to eight hours before ovulation.

So if she came into heat at 9am today that means i should breed her from 2am to 4 am. I dunno about that.

Im not really into the shots, most of mine take when i see them actually in  standing heat and i am positive they are in heat. If they didnt take it is because i didnt watch my cattle. I have seen too many people screw up their heifer with giving too many shots. Im not saying one shot is going to screw her up but i just have seen some people try and time heats this year what a disaster that was. Only reason im gonna be giving a shot is because someone's bull jumped the fence and that hasnt happened in years.

It is my understanding that female sperm survives longer and is slower moving.  While male sperm is faster moving and dies quicker.  If you were previously breeding earlier in the window, that might explain the higher heifer percentage, as there would be a higher number of female sperm left.  By no means a sure thing though 

 

[nck21]

Good luck...it seems like the shorthorns we have are harder to find in heat than black cattle.

 

[BCCC]

a sure sign that they are in heat is when they try and mount other cows heads.