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What to do with open cows?
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<blockquote data-quote="regolith" data-source="post: 920129" data-attributes="member: 9267"><p>70% might be acceptable after 21 days 8) </p><p></p><p>Does it need to be spelled out? Supposing a cow calves 1 September. Bulls out 84 days later for 60 days - she's had twelve weeks to recover and if she catches her next calf on the first day she calves 1 September next year - bingo! Cow calves 30 October. Bulls out 24 days later for 60 days, chances are she'll catch around 60 - 80 days post-calving.</p><p>Every other cow falls in between those dates.</p><p>Me, I usually follow an 84 day calving season with an 84 day mating season, expect 93% in calf and the later calvers might have a higher open rate... what you call self-culling. A well managed beef cow herd can expect better results than that.</p></blockquote><p></p>
[QUOTE="regolith, post: 920129, member: 9267"] 70% might be acceptable after 21 days 8) Does it need to be spelled out? Supposing a cow calves 1 September. Bulls out 84 days later for 60 days - she's had twelve weeks to recover and if she catches her next calf on the first day she calves 1 September next year - bingo! Cow calves 30 October. Bulls out 24 days later for 60 days, chances are she'll catch around 60 - 80 days post-calving. Every other cow falls in between those dates. Me, I usually follow an 84 day calving season with an 84 day mating season, expect 93% in calf and the later calvers might have a higher open rate... what you call self-culling. A well managed beef cow herd can expect better results than that. [/QUOTE]
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What to do with open cows?
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