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Cattle Boards
Breeding / Calving Issues
NOT ENOUGH MILK
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<blockquote data-quote="Jeanne - Simme Valley" data-source="post: 804969" data-attributes="member: 968"><p>So, with this formula (and all breed associations does this - may vary a little, but pretty much the same formula) - you can compare calves from not only different age of cows, but also different age of calves because all calves get adjusted to a 205 day weight. Apples to apples.</p><p>So, say in Roberts scenero, you had a 5 yr old cow with a 600# calf at weaning age of 200 days old.</p><p>600 - 70BW + 530 / 200 = 2.65 x 205 = 543# + 70 = 613# (no cow adjustment)</p><p></p><p>So you had a heifer with an actual wt of 500# calf and a cow with a 600# calf when you weaned them. But, the cows calf was 20 days older & after you take into consideration the fact that the heifer will milk better as she ages - the heifer is the better calf raiser.</p><p>Heifer's calf has a 205 adj ww of 650# and the cow's calf is 613#.</p></blockquote><p></p>
[QUOTE="Jeanne - Simme Valley, post: 804969, member: 968"] So, with this formula (and all breed associations does this - may vary a little, but pretty much the same formula) - you can compare calves from not only different age of cows, but also different age of calves because all calves get adjusted to a 205 day weight. Apples to apples. So, say in Roberts scenero, you had a 5 yr old cow with a 600# calf at weaning age of 200 days old. 600 - 70BW + 530 / 200 = 2.65 x 205 = 543# + 70 = 613# (no cow adjustment) So you had a heifer with an actual wt of 500# calf and a cow with a 600# calf when you weaned them. But, the cows calf was 20 days older & after you take into consideration the fact that the heifer will milk better as she ages - the heifer is the better calf raiser. Heifer's calf has a 205 adj ww of 650# and the cow's calf is 613#. [/QUOTE]
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NOT ENOUGH MILK
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