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Cattle Boards
Breeding / Calving Issues
NOT ENOUGH MILK
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<blockquote data-quote="robert" data-source="post: 804850" data-attributes="member: 9171"><p>weights are adjusted to a mature cow constant, so you have a 1st calf heifer, she calves a 67lb calf (the bw gets and adaf too of +7lbs on a 2yo so it's adj bw is 74lbs) the calf weighs 500lbs at weaning age of 180days, to find the adjusted 205d weight you subtract 67lbs from 500lbs (433lbs) divided by days old (180) = 2.4lbs/day x 205 = 493lbs + 67lb bw = 560lbs + 90lbs age of dam factor (2yo adjustment) = 650lbs adj. 205d. This should give an approximation of what this calf would be if raised by the mature cow version of this calf, therefore allowing you to compare all cows of all ages on a level playing field, within proper contemporary groups of course.</p></blockquote><p></p>
[QUOTE="robert, post: 804850, member: 9171"] weights are adjusted to a mature cow constant, so you have a 1st calf heifer, she calves a 67lb calf (the bw gets and adaf too of +7lbs on a 2yo so it's adj bw is 74lbs) the calf weighs 500lbs at weaning age of 180days, to find the adjusted 205d weight you subtract 67lbs from 500lbs (433lbs) divided by days old (180) = 2.4lbs/day x 205 = 493lbs + 67lb bw = 560lbs + 90lbs age of dam factor (2yo adjustment) = 650lbs adj. 205d. This should give an approximation of what this calf would be if raised by the mature cow version of this calf, therefore allowing you to compare all cows of all ages on a level playing field, within proper contemporary groups of course. [/QUOTE]
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NOT ENOUGH MILK
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