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Cattle Boards
Breeding / Calving Issues
Stacking low birth weight genetics
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<blockquote data-quote="Jeanne - Simme Valley" data-source="post: 1546660" data-attributes="member: 968"><p>Katpau has a real good handle on EPD's. Good explaination.</p><p>BR - your little herd does not come close to giving you any answers on gestation vs BW. Gestation length definitely has an impact on BW. Many, many years ago, ASA used to keep track of gestation. We would report an AI date, then calving dates.</p><p></p><p>Stacking LBW with LBW has been proven to become a calving issue - but, with our better and better EPD's, you need to learn to use MCE in your selections. Again, depends on ACCURRACIES.</p><p>At one point, John Pollak (Prof at Cornell that did all the Sire Summary's for ASA) wanted to DROP BW EPD's because he said they were meaningless. BW is calculated IN the CE EPD's.</p><p>Giz - you may have something else involved, but I think you are on the right track. Watch your MCE.</p></blockquote><p></p>
[QUOTE="Jeanne - Simme Valley, post: 1546660, member: 968"] Katpau has a real good handle on EPD's. Good explaination. BR - your little herd does not come close to giving you any answers on gestation vs BW. Gestation length definitely has an impact on BW. Many, many years ago, ASA used to keep track of gestation. We would report an AI date, then calving dates. Stacking LBW with LBW has been proven to become a calving issue - but, with our better and better EPD's, you need to learn to use MCE in your selections. Again, depends on ACCURRACIES. At one point, John Pollak (Prof at Cornell that did all the Sire Summary's for ASA) wanted to DROP BW EPD's because he said they were meaningless. BW is calculated IN the CE EPD's. Giz - you may have something else involved, but I think you are on the right track. Watch your MCE. [/QUOTE]
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