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Breeding / Calving Issues
Replacements out of first calve heifers?
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<blockquote data-quote="Jeanne - Simme Valley" data-source="post: 617016" data-attributes="member: 968"><p>Heifers definately don't milk as well their first year or their 2nd year - pretty much in full stride by 4th calf. Each breed assn. ADJUSTS the official 205 day WW to reflect the age of the dam, knowing a 2year olds calf will wean more the following year and even more the next.</p><p></p><p>As far a RanchManager's comments about developing a herd of hard calving cows after continuously using "extremely easy" calving sires, I agree. I must have read the same article he read, but I already "knew" that, just out of common sense. Now, I'm talking a bull that is just a HEIFER BULL, as they are referred to. If you continuously use this type bull and keep your replacements out of him, you end up with smaller cows that will have calving difficulties. I'm not sure the research says they will have smaller pelvic size, but PS is relative to size, so yes they would end up with smaller PS - in comparison.</p><p></p><p>In each breed, there are now MANY good easy calving bulls, that have all the grown & other traits you would want in your herd.</p></blockquote><p></p>
[QUOTE="Jeanne - Simme Valley, post: 617016, member: 968"] Heifers definately don't milk as well their first year or their 2nd year - pretty much in full stride by 4th calf. Each breed assn. ADJUSTS the official 205 day WW to reflect the age of the dam, knowing a 2year olds calf will wean more the following year and even more the next. As far a RanchManager's comments about developing a herd of hard calving cows after continuously using "extremely easy" calving sires, I agree. I must have read the same article he read, but I already "knew" that, just out of common sense. Now, I'm talking a bull that is just a HEIFER BULL, as they are referred to. If you continuously use this type bull and keep your replacements out of him, you end up with smaller cows that will have calving difficulties. I'm not sure the research says they will have smaller pelvic size, but PS is relative to size, so yes they would end up with smaller PS - in comparison. In each breed, there are now MANY good easy calving bulls, that have all the grown & other traits you would want in your herd. [/QUOTE]
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Breeding / Calving Issues
Replacements out of first calve heifers?
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