Using CIDRs: Pay Attention to Detail
JOPLIN, Mo. (Aug. 31, 2011) — Sanitation is imperative when using CIDRs in an estrus synchronization program, Harold Miller, Accelerated Genetic,s and Stan Lock, Genex Cooperatives, stressed as they gave a demonstration of proper CIDR® insertion at the Joplin Regional Stockyards Aug. 31. The presentation was just one of the practical management demonstrations provided during an evening session of the Applied Reproductive Strategies in Beef Cattle (ARSBC) symposium in Joplin, Mo., Aug. 31-Sept. 1.
Tammy Wallace demonstrated the procedure for inserting a CIDR while Stan Lock described the procedure at an ARSBC evening session hosted at the Joplin Regional Stockyards.
Miller and Lock explained CIDR insertion and removal protocols as Tammy Wallace demonstrated the procedure on live cows.
Miller encouraged the standing-room-only audience to pay attention to all the details that could affect reproductive rates. Something as obscure as dust blowing could be a source of infection.
“How we follow the details can affect that formula for reproductive success that George Perry talked about this morning,” Miller emphasized. Perry had described four factors affecting single-service conception rates — estrus detection success, inseminator efficiency, fertility level of the herd and fertility level of the semen. A 90% success rate in two of those areas along with a 95% success rate in the other two would provide an overall single-service conception rate of only 74%.
Referring the audience to page 223 of the meeting’s proceedings, Miller turned the program over to Lock who walked the audience through the steps of inserting a CIDR:
- Wear latex gloves to avoid contact with the CIDR, which contains progesterone.
- It’s critical to maintain sanitation. Lock recommended a two-bucket wash with Nolvasan or Chlorohexidine in both buckets and updating the disinfecting solution often.
- Insert the CIDR into a gun made for CIDR insertions. Lock showed two sizes, a longer blue gun for use in cows and a shorter green gun for use in heifers.
- Fold the wings of the CIDR and insert it into the applicator. It will protrude about 1 inch from the applicator.
- Lock says he uses a CIDR lube product to help lubricate and disinfect.
- Pull the cow’s tail to the side and clean the vulva with a paper towel.
- Open the lips of the vulva and gently insert in an upward manner until the CIDR gently bumps the vulva.
- Rotate to position CIDR with tail down, deposit the CIDR by depressing the plunger, and remove the gun. The blue tail should hang down out of the cow. It can be clipped so that only 2.5 inches protrudes from the vulva to prevent other animals from removing the CIDR.
- Begin the disinfection process and start over.
To remove, Lock said, locate the blue tail, pull out and throw the used CIDR away. This process can easily be done in an alley if all the tails are showing.
If you don’t see the blue tail, it could mean the cow lost the CIDR, which is not very likely, or the tail may not be visible externally. Check the cow to be sure the CIDR is not still inside her.
With good facilities, Lock said CIDRs can be inserted into 60-80 cows within an hour. If attention is paid to detail and sanitation, he says he sees very few instances of loss or infection.
Miller and Lock spoke during an evening session of the ARSBC symposium hosted Wednesday evening, Aug. 31, at the Joplin Regional Stockyards. Summaries of other presentations at the ARSBC wil be available online at www.appliedreprostrategies.com. Compiled by Angus Productions Inc. (API; publisher of the Angus Journal and the Angus Beef Bulletin), the site is made possible through sponsorship by the Beef Reproductive Task Force, SEK Genetics, and liveauctions.tv. Coverage will include summaries of the speaker presentations, PowerPoints, proceedings and audio.
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