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Breeding / Calving Issues
Pelvic measurement
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<blockquote data-quote="Sage" data-source="post: 335424" data-attributes="member: 5352"><p>Pelvic size is highly related to yearling weight (.41) and yearling hip height (.57) according to Rice (pilvimeter manafacturer). Measuring bulls is a good way to know what direction your heading as it's about 55% heritable (Ag Extension Edu). Here is some info from a guide I have relating area to calf size in yearling heafers:</p><p> 600lb heifer:</p><p> pelvic area 140 67lb calf</p><p> 160 76lb calf</p><p> 180 86lb calf</p><p>they have a ratio of area to BW of 2.1</p><p></p><p>Keep in mind I think the shape is just or more important than the size, a super tall skinny, or super short & fat just don't work.</p><p></p><p>If you are measuring bulls they are much smaller on pelvic size than heifers so if a yearling bull measures 150 don't think it's bad. 900-1100lb bulls are similar to 650-700lb heifers (Ag Extension Edu).</p></blockquote><p></p>
[QUOTE="Sage, post: 335424, member: 5352"] Pelvic size is highly related to yearling weight (.41) and yearling hip height (.57) according to Rice (pilvimeter manafacturer). Measuring bulls is a good way to know what direction your heading as it's about 55% heritable (Ag Extension Edu). Here is some info from a guide I have relating area to calf size in yearling heafers: 600lb heifer: pelvic area 140 67lb calf 160 76lb calf 180 86lb calf they have a ratio of area to BW of 2.1 Keep in mind I think the shape is just or more important than the size, a super tall skinny, or super short & fat just don't work. If you are measuring bulls they are much smaller on pelvic size than heifers so if a yearling bull measures 150 don't think it's bad. 900-1100lb bulls are similar to 650-700lb heifers (Ag Extension Edu). [/QUOTE]
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