Menu
Forums
New posts
Search forums
What's new
New posts
New media
New media comments
New profile posts
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Forums
Cattle Boards
Artificial Insemination (AI) for Cattle
Preg check yay
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support CattleToday:
Message
<blockquote data-quote="boondocks" data-source="post: 1435208" data-attributes="member: 20599"><p>We use the TAI (Timed AI) 7 Day CO-Synch With CIDR: <a href="http://www.selectsires.com/resources/fertilitydocs/estrus_syn_reproman.pdf?version=20170404" target="_blank">http://www.selectsires.com/resources/fe ... n=20170404</a></p><p></p><p>As you can see, it's basically:</p><p>Insert CIDR and administer GnRH injection</p><p>One week later, remove CIDR and administer PG (prostaglandin, eg Lutalyse)</p><p>THEN (and here's where it gets tricky): about 58* hours later (give or take), do the AI and administer another GnRH shot.</p><p></p><p>*As you will see on the linked docs for TAI, the recommended time varies from 60-66 hrs (for cows) and 54hrs (+/- 2 hrs) for heifers. We have an AI tech come, so we do the heifers and cows at the same time, and try to aim for somewhere in the middle. As you can see, the time between the second and third step can ostensibly vary from 52 hrs (the minimum for heifers) to 66 hrs (the max for cows). We try to AI around 58 hrs, on the theory that it meets in the midpoint between the max for heifers (56 hrs) and the min for cows (60 hrs). I think others may go a bit longer than this, from what I've read on here. And no matter how strictly one adheres to a protocol, the results sure do nonetheless vary!</p></blockquote><p></p>
[QUOTE="boondocks, post: 1435208, member: 20599"] We use the TAI (Timed AI) 7 Day CO-Synch With CIDR: [url=http://www.selectsires.com/resources/fertilitydocs/estrus_syn_reproman.pdf?version=20170404]http://www.selectsires.com/resources/fe ... n=20170404[/url] As you can see, it's basically: Insert CIDR and administer GnRH injection One week later, remove CIDR and administer PG (prostaglandin, eg Lutalyse) THEN (and here's where it gets tricky): about 58* hours later (give or take), do the AI and administer another GnRH shot. *As you will see on the linked docs for TAI, the recommended time varies from 60-66 hrs (for cows) and 54hrs (+/- 2 hrs) for heifers. We have an AI tech come, so we do the heifers and cows at the same time, and try to aim for somewhere in the middle. As you can see, the time between the second and third step can ostensibly vary from 52 hrs (the minimum for heifers) to 66 hrs (the max for cows). We try to AI around 58 hrs, on the theory that it meets in the midpoint between the max for heifers (56 hrs) and the min for cows (60 hrs). I think others may go a bit longer than this, from what I've read on here. And no matter how strictly one adheres to a protocol, the results sure do nonetheless vary! [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cattle Boards
Artificial Insemination (AI) for Cattle
Preg check yay
Top