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
Breeding / Calving Issues
AI %
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="kenny thomas" data-source="post: 648084" data-attributes="member: 8993"><p>Following is a copy of part of an article from Angus Journal last October. It describes the protocol I use. Yes, this article is about me and a friend. Good reporter (Becky Mills)without much to work with. </p><p>Thoughts from everyone who AI's.</p><p></p><p>[Even though John and Bill Carter and Kenny Thomas join forces to artificially inseminate (AI) their heifers, all three still have full-time jobs to schedule around. Their solution is a timed-AI synchronization protocol set up by Tennessee veterinarian Edwin Robertson, a veteran in embryotransfer (ET).</p><p>"We've used timed AI for eight years now," Robertson says. "This has been the most effective</p><p>protocol for getting the most heifers and cows pregnant."</p><p></p><p>Here's the schedule:</p><p>x Day 0, 8 p.m. Inject GnRH, 2 cc Insert CIDR®</p><p></p><p>Robertson says the treatments can be started</p><p>in the morning, but the nighttime schedule worked better for the Carters and Thomas.</p><p></p><p>x Day 7, 8 p.m. Inject prostaglandin, 5 cc Remove CIDR</p><p></p><p>x Day 9, 8 p.m. Inject GnRH, 2 cc</p><p>"Make sure it is 48 hours after the Day 7 treatment," Robertson says.</p><p></p><p>x Day 10, 8 a.m. Breed</p><p>"Make sure this is 10 to 12 hours after the Day 9 treatment," Robertson says.</p><p></p><p>Before you even start to think about a synchronization</p><p>and AI program, Robertson says, you need to have your heifers and cows in the right condition.</p><p>"We're reluctant to breed heifers weighing less than 750 pounds," he explains. "I prefer they weigh 800 pounds and are at least 15 months old. Conception rates are usually lower on heifers under 15 months of age."</p><p>He adds, "Because of the hormone profile of heifers, in my opinion, anytime you attempt timed AI with heifers you will be disappointed unless you use a protocol that includes CIDRs."</p><p></p><p>For best results he says they need to be at least 45 days postcalving when the synchronization</p><p>program begins and 54 days postcalving at breeding.]</p></blockquote><p></p>
[QUOTE="kenny thomas, post: 648084, member: 8993"] Following is a copy of part of an article from Angus Journal last October. It describes the protocol I use. Yes, this article is about me and a friend. Good reporter (Becky Mills)without much to work with. Thoughts from everyone who AI's. [Even though John and Bill Carter and Kenny Thomas join forces to artificially inseminate (AI) their heifers, all three still have full-time jobs to schedule around. Their solution is a timed-AI synchronization protocol set up by Tennessee veterinarian Edwin Robertson, a veteran in embryotransfer (ET). “We’ve used timed AI for eight years now,” Robertson says. “This has been the most effective protocol for getting the most heifers and cows pregnant.” Here’s the schedule: x Day 0, 8 p.m. Inject GnRH, 2 cc Insert CIDR® Robertson says the treatments can be started in the morning, but the nighttime schedule worked better for the Carters and Thomas. x Day 7, 8 p.m. Inject prostaglandin, 5 cc Remove CIDR x Day 9, 8 p.m. Inject GnRH, 2 cc “Make sure it is 48 hours after the Day 7 treatment,” Robertson says. x Day 10, 8 a.m. Breed “Make sure this is 10 to 12 hours after the Day 9 treatment,” Robertson says. Before you even start to think about a synchronization and AI program, Robertson says, you need to have your heifers and cows in the right condition. “We’re reluctant to breed heifers weighing less than 750 pounds,” he explains. “I prefer they weigh 800 pounds and are at least 15 months old. Conception rates are usually lower on heifers under 15 months of age.” He adds, “Because of the hormone profile of heifers, in my opinion, anytime you attempt timed AI with heifers you will be disappointed unless you use a protocol that includes CIDRs.” For best results he says they need to be at least 45 days postcalving when the synchronization program begins and 54 days postcalving at breeding.] [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cattle Boards
Breeding / Calving Issues
AI %
Top