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<blockquote data-quote="Frankie" data-source="post: 701696" data-attributes="member: 13"><p>Unless you're willing to devote a <strong>lot</strong> of time to heat detecting, I'd really encourage you to keep a bull around for back up. We were total AI for many years, but it does require a big time committment. There are methods to synch cows now that weren't available when we started. They're not 100% though and you still either need to follow up on the heat detection or turn them out with a bull.</p><p></p><p>Simply put, a cow cycles about every 18-20 days. She'll exhibit heat signs by trying to mount other cows, general restlessness, a discharge. When she stands for other cows to mount her (standing heat), you want to breed her 8-12 hours later. We use the "morning standing heat, breed in the evening; evening standing heat, breed early next morning" formula. And we have a good success rate.</p><p></p><p>With just a few cows, you'd probably be better off to hire a tech to do the work. An AI tank is $2-300, plus it needs to be refilled with nitrogen every few weeks, an additional charge. Talk to the tech about what bulls he recommends. With AI you can use a different bull on each cow to, hopefully, improve the cow's weaker traits. </p><p></p><p>Here's a link to the Angus site that describes Angus EPDs:</p><p></p><p><a href="http://www.angus.org/Nce/Definitions.aspx" target="_blank">http://www.angus.org/Nce/Definitions.aspx</a></p><p></p><p>Other breeds have different EPDs, but it's a place to start....good luck. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="Frankie, post: 701696, member: 13"] Unless you're willing to devote a [b]lot[/b] of time to heat detecting, I'd really encourage you to keep a bull around for back up. We were total AI for many years, but it does require a big time committment. There are methods to synch cows now that weren't available when we started. They're not 100% though and you still either need to follow up on the heat detection or turn them out with a bull. Simply put, a cow cycles about every 18-20 days. She'll exhibit heat signs by trying to mount other cows, general restlessness, a discharge. When she stands for other cows to mount her (standing heat), you want to breed her 8-12 hours later. We use the "morning standing heat, breed in the evening; evening standing heat, breed early next morning" formula. And we have a good success rate. With just a few cows, you'd probably be better off to hire a tech to do the work. An AI tank is $2-300, plus it needs to be refilled with nitrogen every few weeks, an additional charge. Talk to the tech about what bulls he recommends. With AI you can use a different bull on each cow to, hopefully, improve the cow's weaker traits. Here's a link to the Angus site that describes Angus EPDs: [url=http://www.angus.org/Nce/Definitions.aspx]http://www.angus.org/Nce/Definitions.aspx[/url] Other breeds have different EPDs, but it's a place to start....good luck. :) [/QUOTE]
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