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<blockquote data-quote="Ebenezer" data-source="post: 1326850" data-attributes="member: 24565"><p>Weaned Calf $Value ($W) quantifies four primary economic impact areas: </p><p>1.Birth Weight - birth weight influences on calf death losses related to dystocia, weaned calf crop percentage, and resulting revenue per cow. </p><p>2.Weaning Weight - direct growth impact on weaning weight revenue (pre-weaning growth and pounds of calf sold) and energy requirements and related costs to necessary to support pre-weaning calf growth. </p><p>3.Maternal Milk - revenue from calf pre-weaning growth and pounds of calf sold as influenced by varying cow milk levels, and costs related to lactation energy requirements. </p><p>4.Mature Cow Size - expense adjustments are made for maintenance energy as related to differing mature cow size, including mathematical linkages between mature weight and yearling weight. </p><p>The impact areas are combined into a bio-economic value expressed in dollars per head assigned to Angus genetics from birth through weaning. Resources used to form the Wean Calf Value ($W) include National Research Council (NRC), US Meat and Animal Research Center (USMARC), Cattle-Fax, SPA and university cow-calf budgets, and the American Angus Association performance database. </p><p>$Values only have meaning when used in comparing the relative merit or ranking of two individuals. $W provides the expected dollar-per-head difference in future progeny preweaning performance in a multi-trait fashion, within a typical U.S. beef cowherd. If Bull A has a $W of +50.00 and Bull B has a $W of +35.00, and these sires were randomly mated to a comparable set of females and the calves were exposed to the same environment, and a normal number of replacement females were saved from both sires, on average you could expect Bull A's progeny to have a +15.00 per head advantage in pre-weaning value over Bull B's progeny (50.00 - 35.00 = +15.00 per head). As with any $Value, $W only has meaning when used in comparing the relative merit or ranking of two individuals. </p><p></p><p>As with other $Values, the Weaned Calf Value includes assumptions, as listed below: </p><p></p><p> </p><p>Base Calf Price $205 per cwt </p><p>Cow/Heifer Mix 80%/20% </p><p>Cow Weight 1300 lb </p><p>Feed energy cost $.115 per MCal NEm</p></blockquote><p></p>
[QUOTE="Ebenezer, post: 1326850, member: 24565"] Weaned Calf $Value ($W) quantifies four primary economic impact areas: 1.Birth Weight - birth weight influences on calf death losses related to dystocia, weaned calf crop percentage, and resulting revenue per cow. 2.Weaning Weight - direct growth impact on weaning weight revenue (pre-weaning growth and pounds of calf sold) and energy requirements and related costs to necessary to support pre-weaning calf growth. 3.Maternal Milk - revenue from calf pre-weaning growth and pounds of calf sold as influenced by varying cow milk levels, and costs related to lactation energy requirements. 4.Mature Cow Size - expense adjustments are made for maintenance energy as related to differing mature cow size, including mathematical linkages between mature weight and yearling weight. The impact areas are combined into a bio-economic value expressed in dollars per head assigned to Angus genetics from birth through weaning. Resources used to form the Wean Calf Value ($W) include National Research Council (NRC), US Meat and Animal Research Center (USMARC), Cattle-Fax, SPA and university cow-calf budgets, and the American Angus Association performance database. $Values only have meaning when used in comparing the relative merit or ranking of two individuals. $W provides the expected dollar-per-head difference in future progeny preweaning performance in a multi-trait fashion, within a typical U.S. beef cowherd. If Bull A has a $W of +50.00 and Bull B has a $W of +35.00, and these sires were randomly mated to a comparable set of females and the calves were exposed to the same environment, and a normal number of replacement females were saved from both sires, on average you could expect Bull A's progeny to have a +15.00 per head advantage in pre-weaning value over Bull B's progeny (50.00 - 35.00 = +15.00 per head). As with any $Value, $W only has meaning when used in comparing the relative merit or ranking of two individuals. As with other $Values, the Weaned Calf Value includes assumptions, as listed below: Base Calf Price $205 per cwt Cow/Heifer Mix 80%/20% Cow Weight 1300 lb Feed energy cost $.115 per MCal NEm [/QUOTE]
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