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
Just Starting Out: How does AI work?
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="JoyfulJerseys" data-source="post: 1132611" data-attributes="member: 22362"><p>Yay for teenage cow people <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big grin :D" loading="lazy" data-shortname=":D" /></p><p></p><p>1. As shortybreeder said, as long as you keep it frozen in the liquid nitrogen, it'll keep pretty much indefinitely. You can order months in advance if you like.</p><p>2. Cows only come into standing heat (the heat you see) for about 12 hours. Maybe even less. This means that it's important to watch your cows 2-3 times a day for several minutes to observe for heat behaviour. On our farm, we do heat-spotting three times a day for half an hour each time with high success. There are also heat detectors on the market which work reasonably well; for problem cows we use KAMAR stickers. You just stick it on the cow's rump, where the chest of a mounting cow will rest, and if the cow is mounted enough then the sticker turns red.</p><p>The best is still to watch for heat behaviour, which can include the cow on heat doing the following:</p><p>- Mounting or licking others, or resting her head on their backs</p><p>- Being mounted by a lot of others and standing for them to do so. This is called standing heat and AI should take place no more than 12 hours later</p><p>- Calling</p><p>- Pacing</p><p>- She may have lick marks on her fur and chafe marks on her rump and hips where she's been mounted</p><p>- Restlessness</p><p>If you have to get somebody out to do the AIs for you, it might be best just to synchronise the cows - give them a hormone injection to bring them all on heat on the same day.</p><p>3. In my area 60% of cows conceiving on the first AI is considered the minimum reasonable rate. On our cows, my AI conception rate runs at 71-77%, but an experienced person will probably have it quite a lot higher (I've only been at it three or four years and only done a couple hundred as opposed to the several thousand that an experienced person has done). It also depends on a lot of other factors - feeding, reproductive health, and psychological stress experienced on the day of the AI.</p></blockquote><p></p>
[QUOTE="JoyfulJerseys, post: 1132611, member: 22362"] Yay for teenage cow people :D 1. As shortybreeder said, as long as you keep it frozen in the liquid nitrogen, it'll keep pretty much indefinitely. You can order months in advance if you like. 2. Cows only come into standing heat (the heat you see) for about 12 hours. Maybe even less. This means that it's important to watch your cows 2-3 times a day for several minutes to observe for heat behaviour. On our farm, we do heat-spotting three times a day for half an hour each time with high success. There are also heat detectors on the market which work reasonably well; for problem cows we use KAMAR stickers. You just stick it on the cow's rump, where the chest of a mounting cow will rest, and if the cow is mounted enough then the sticker turns red. The best is still to watch for heat behaviour, which can include the cow on heat doing the following: - Mounting or licking others, or resting her head on their backs - Being mounted by a lot of others and standing for them to do so. This is called standing heat and AI should take place no more than 12 hours later - Calling - Pacing - She may have lick marks on her fur and chafe marks on her rump and hips where she's been mounted - Restlessness If you have to get somebody out to do the AIs for you, it might be best just to synchronise the cows - give them a hormone injection to bring them all on heat on the same day. 3. In my area 60% of cows conceiving on the first AI is considered the minimum reasonable rate. On our cows, my AI conception rate runs at 71-77%, but an experienced person will probably have it quite a lot higher (I've only been at it three or four years and only done a couple hundred as opposed to the several thousand that an experienced person has done). It also depends on a lot of other factors - feeding, reproductive health, and psychological stress experienced on the day of the AI. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cattle Boards
Breeding / Calving Issues
Just Starting Out: How does AI work?
Top