Reusing CIDR's

Cavanshooter

Hi, i'm going to synchronise the second batch of heifers tomorrow would it be possible to reuse the cidr's i put in the other heifers a few weeks ago. thanks.

patsy_mccabe

Jeez, you are from Cavan.:D

bogman_bass

You can. Nothing will come bulling but you could use them

J.O. Farmer

Cavanshooter wrote: »

Hi, i'm going to synchronise the second batch of heifers tomorrow would it be possible to reuse the cidr's i put in the other heifers a few weeks ago. thanks.

I'm going to say no. How do I put this politely.

The cidr isn't there just to give them a longing to have the cidr replaced with something else.

It contains hormone that is absorbed by the heifer so it won't work with the second one.

kollegeknight

patsy_mccabe wrote: »

Jeez, you are from Cavan.:D

Could use the old AI straws for drinking straws also.

But on the original question, I would say no as they release a hormone

The part time boy

I was told before you could reuse. I was latter told by someone else u can reuse but there be reduced chances of working as there be less hormone in it .

Both people were vets btw

C0N0R

I was also told in College that you could use them a second time. The college was in Cavan if that makes a difference! Google it, its a topic that has had a lot of discussion on various forums.

J.O. Farmer

The part time boy wrote: »

I was told before you could reuse. I was latter told by someone else u can reuse but there be reduced chances of working as there be less hormone in it .

Both people were vets btw

Both are probably right. Where'd be the point of using them though if there's a reduced chance of them working.

It'd be a bit like reusing a condom.
Yes you might save a few quid but but there's a higher chance it'll fail and if it does it will cost you a lot more than you saved by reusing it.

The irony of the example isn't lost on me either.

Mooooo

I think older ones had more in them whereas newer ones don't, it was common to reuse but not so much anymore I'd say

GiantPencil

Where is the hormone on them, is it on the plastic or the piece of string that goes with it? I've often wondered could you just spray on the hormone again if its just on the plastic or replace the piece of string

Durrus Boy

It was no problem to re-use them in the past as there was a higher concentration of progesterone incorporated in them. Pfizer copped onto this and dropped the levels so it's basically a non runner now. Shame as it was very cost effective!

The man in red and black

GiantPencil wrote: »

Where is the hormone on them, is it on the plastic or the piece of string that goes with it? I've often wondered could you just spray on the hormone again if its just on the plastic or replace the piece of string

To my knowledge it is actually impregnated within the plastic. The string is only for convenient removal. It's not worth using them again due to reduced efficacy. Also to be considered is the length of the program being used. Trying to re-use after a 10 day use is less likely to work than a 5 day program. When you factor in cost of addd days empty I don't see it as a worthwhile saving.

Keepgrowing

I wasn't aware the hormone levels have been reduced in the newer one.

Lots of smart answers here

I always use them twice when we did use them. The secret is their storage between uses.

We cleaned, dried, wrapped in tin foil and stored in a cool dry spot between uses.

We will also split expensive straws between cows, this also works. When we were breeding we often used straws that were £50-100 each and would split them

kollegeknight

Keepgrowing wrote: »

I wasn't aware the hormone levels have been reduced in the newer one.

Lots of smart answers here

I always use them twice when we did use them. The secret is their storage between uses.

We cleaned, dried, wrapped in tin foil and stored in a cool dry spot between uses.

We will also split expensive straws between cows, this also works. When we were breeding we often used straws that were £50-100 each and would split them

How successful was splitting the straws?

Mooooo

Keepgrowing wrote: »

I wasn't aware the hormone levels have been reduced in the newer one.

Lots of smart answers here

I always use them twice when we did use them. The secret is their storage between uses.

We cleaned, dried, wrapped in tin foil and stored in a cool dry spot between uses.

We will also split expensive straws between cows, this also works. When we were breeding we often used straws that were £50-100 each and would split them

Were they .25 or.5 cc straws. Ai man was telling me a while back of a local farmer who was splitting straws since ai first came on the scene and his results were nearly as good as any ai man, and on Holsteins