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CA Future Direction 5321
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<blockquote data-quote="Brandonm2" data-source="post: 139289" data-attributes="member: 2095"><p>According to a study in the late 80s by Ritchie et al. If you grazed cows on summer pasture then DRYLOTTED them for 215 days (so the professors could actually measure consumption) an 1100 cow consumes 8447 Mcals of metabolizable energy (ME), a 1430 lb cow 9940, and 11361 for a 1700 lb cow during the drylot period. This translated into $202 per cow, $235, and $266 in feed costs for the three different sized cows. NOT that big a deal for cows in a drylot; but if the cows are supposed to make their living on grass and hay you are going to either starve the bigger cows, run fewer cows per acre, or have to throw grain at them you wouldn't have to throw to more moderate framed cows. If two heifers have the same weaning wt and yearling wt EPDs but one has a much bigger mature cow weight EPD that means her and her daughters are going to cost you MORE money in feed, hay, and grass to get the same level of production as the first heifer (IF the numbers are all accurate). This is a very usable number to have and I congratulate Angus for adding these new EPDs and HOPE that Hereford will soon follow the Angus association's lead in this.</p></blockquote><p></p>
[QUOTE="Brandonm2, post: 139289, member: 2095"] According to a study in the late 80s by Ritchie et al. If you grazed cows on summer pasture then DRYLOTTED them for 215 days (so the professors could actually measure consumption) an 1100 cow consumes 8447 Mcals of metabolizable energy (ME), a 1430 lb cow 9940, and 11361 for a 1700 lb cow during the drylot period. This translated into $202 per cow, $235, and $266 in feed costs for the three different sized cows. NOT that big a deal for cows in a drylot; but if the cows are supposed to make their living on grass and hay you are going to either starve the bigger cows, run fewer cows per acre, or have to throw grain at them you wouldn't have to throw to more moderate framed cows. If two heifers have the same weaning wt and yearling wt EPDs but one has a much bigger mature cow weight EPD that means her and her daughters are going to cost you MORE money in feed, hay, and grass to get the same level of production as the first heifer (IF the numbers are all accurate). This is a very usable number to have and I congratulate Angus for adding these new EPDs and HOPE that Hereford will soon follow the Angus association's lead in this. [/QUOTE]
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