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Breeding / Calving Issues
Which AI bull do you use and why?
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<blockquote data-quote="4CTophand" data-source="post: 613797" data-attributes="member: 9140"><p>Which AI bull do you select for your heard and why, and how long does it take to produce a good quality Heifer from AI breeding. </p><p></p><p><strong>The art of matching breedings takes some time, but rule of thumb is that you try to find a bull that compliments the cow you are breeding-- for example: If your cow lacks in correct structure or udder attachment or milking ability or growth or Frame score etc... you try to find a Bull that will help compliment that situation. Another example: I have Simm cows too -- we have a few simm cows that have too much frame-- so what we try to do is cut that frame down on their offspring by using bulls with a frame score of 5.7 or lower, without taking away from confirmation or WW or YW or Marb or MM etc etc. </strong></p><p><strong></strong></p><p><strong>Bulls we use for AI (sexed semen) for producing quality heifers--- we choose based on several factors--- Calving ease, Birth weight, WW, YW, to a lesser degree MM because both Angus and Simm have ample MM. We look at the (MGS) Maternal Grand Sire for further information. </strong></p><p><strong></strong></p><p><strong>As far as heifers go we cull 3 times before a heifer+ makes it into our A cow herd.</strong></p><p><strong>1. We cull at weaning looking for structural correctness, disposition, WDA and overall phenotype (Any heifer that doesn't meet Average Simm or Angus WDA is culled, unless she is out of a first calf Heifer)</strong></p><p><strong>2. We cull again at 12 - 15 months pre-breeding -- again on structural correctness, disposition,WDA, pelvic measurements, FS and overall phenotype. Heifers are put on grazing to gain about 1.5 to 2.0 lbs per day depending on breed (Angus/ Simms) from weaning to breeding --any that fall behind are culled.</strong></p><p><strong>3. We cull again at 24 months for any heifer that was assisted in a normal calving or fails to breed back on time after her first calf. </strong></p><p><strong>Heifers are bred AI > 30 days before the main cow herd to help them get on track for a normal breeding schedule in the future.</strong></p><p><strong>This is a business and it is run like a business and if these cattle don't perform they are history.</strong></p><p></p><p>At the end of the day --all cows calve in a 84 day period,including heifers Cows all wean calves at least 50% of their body weight post-calving and breed back on time.</p></blockquote><p></p>
[QUOTE="4CTophand, post: 613797, member: 9140"] Which AI bull do you select for your heard and why, and how long does it take to produce a good quality Heifer from AI breeding. [b]The art of matching breedings takes some time, but rule of thumb is that you try to find a bull that compliments the cow you are breeding-- for example: If your cow lacks in correct structure or udder attachment or milking ability or growth or Frame score etc... you try to find a Bull that will help compliment that situation. Another example: I have Simm cows too -- we have a few simm cows that have too much frame-- so what we try to do is cut that frame down on their offspring by using bulls with a frame score of 5.7 or lower, without taking away from confirmation or WW or YW or Marb or MM etc etc. Bulls we use for AI (sexed semen) for producing quality heifers--- we choose based on several factors--- Calving ease, Birth weight, WW, YW, to a lesser degree MM because both Angus and Simm have ample MM. We look at the (MGS) Maternal Grand Sire for further information. As far as heifers go we cull 3 times before a heifer+ makes it into our A cow herd. 1. We cull at weaning looking for structural correctness, disposition, WDA and overall phenotype (Any heifer that doesn't meet Average Simm or Angus WDA is culled, unless she is out of a first calf Heifer) 2. We cull again at 12 - 15 months pre-breeding -- again on structural correctness, disposition,WDA, pelvic measurements, FS and overall phenotype. Heifers are put on grazing to gain about 1.5 to 2.0 lbs per day depending on breed (Angus/ Simms) from weaning to breeding --any that fall behind are culled. 3. We cull again at 24 months for any heifer that was assisted in a normal calving or fails to breed back on time after her first calf. [/b] [b]Heifers are bred AI > 30 days before the main cow herd to help them get on track for a normal breeding schedule in the future. This is a business and it is run like a business and if these cattle don't perform they are history.[/b] At the end of the day --all cows calve in a 84 day period,including heifers Cows all wean calves at least 50% of their body weight post-calving and breed back on time. [/QUOTE]
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