How Soon Can I Estrumate?

[Tarw Coch]

As per title, I've had a young bull get to some young heifers, how soon can they be jabbed to stop any unwanted pregnancies? It's in the back of my mind that they can't be done straight away.

 

[More to life]

10days I think or calve them

 

[Tarw Coch]

Definetly not plan B

 

[More to life]

Definetly not plan B

Why not just interested

 

[buffalo_soldier]

My lot like to jab them twice a couple of weeks apart also.

 

[More to life]

My lot like to jab them twice a couple of weeks apart also.

Yes it's far from 100%

 

[bovine]

I generally scan at 28 days and then jab only those that are in calf. It's not 100% and a quick PD on time is usually cheaper than injecting them all. You can then watch those closely to make sure they come bulling.

Minimum wait of 6 days.

 

[supercow]

How old r the hiefers?we have a hiefer calved at a year and a half doing well 25 litres, is it worth aborting her and have a small chance she might not get back in calve? Depending on age and size I'd calve her! Younger they r the better they calve I think sometimes

 

[Tarw Coch]

Why not just interested

Not sure of exact age without looking but about 6 months, a bunch of 10, 2 of which were holding their tales up as if having being served.
I have the numbers of those 2 and it's quite unlikely that more would have been bulling on one day but still feel it would be safest to jab the lot.

 

[Holsteinfriesian90]

Would they be cycling that early?

 

[supercow]

Iv got a cow going into her third laction in may, she calved well under 2 years old, the rest her age are just starting thier second lactation ! but ur right getting served at 6 months is too early

 

[More to life]

What breed are they never had a Holstein calf bull that early here,we all get mix ups tho

 

[Tarw Coch]

Would they be cycling that early?

Don't know, I'd have thought not but you do hear of such things. Also I haven't checked ages so may well be a bit older.

 

[multi power]

Not sure of exact age without looking but about 6 months, a bunch of 10, 2 of which were holding their tales up as if having being served.
I have the numbers of those 2 and it's quite unlikely that more would have been bulling on one day but still feel it would be safest to jab the lot.

First thing i would do is watch them in 3 weeks, if you see them bulling then nothing to worry about, if not then jab them

 

[bovine]

Jab not 100%. Just injecting gets you nowhere.

 

[Howdairy]

You need to wait at least 10 days. As embryo needs to implant before estrumate would work.

 

[bovine]

You need to wait at least 10 days. As embryo needs to implant before estrumate would work.

No, you don't.

 

[Howdairy]

True you could go in earlier than 10 days but 6 days may be too early. It may take at least 7 days for a pregnancy CL to form. So 7 days should be the very minimum.

 

[Clay52]

It's pretty funny. Guys are trying so hard to disagree with what bovine says and him saying 6 days so they are recommending 7 days.

 

[multi power]

It's pretty funny. Guys are trying so hard to disagree with what bovine says and him saying 6 days so they are recommending 7 days.

Maybe we could compromise, 6.5 days