Pasture To Plate Performance Sale, Vol. III
PAP GUARANTEE Pulmonary Arterial Pressure (PAP) testing of cattle has greatly reduced the incidence of brisket disease and is becoming a key selection criteria for high altitude buyers. Dr. Tim Holt of Colorado State University PAP tested all of the sale cattle at the ranch. (Alt. 4560). At this altitude, PAP testing is not 100% accurate, but it does help identify cattle that could be of greater risk of developing brisket disease.
# OF LOTS
GROSS
AVERAGE
_____________ _____________ _____________ _____________ _____________
Semen
______________ ______________
Based on this information, if you purchase bulls/heifers with a PAP score of 40 and below, we will guarantee those animals will PAP at altitude. If they fail to pass a PAP test following a 60-day acclimation period at altitude, buyer can return the animal for a complete refund or credit to a bull of equal or greater value. PAP RISK CATEGORY FLOW CHART OCHSNER LAND & CATTLE Location of PAP Test • Kersey, Colorado Elevation 4560 feet Yearling Bulls ______________ ______________ Fall Yearling Bulls ______________ ______________ Open Heifers ______________ ______________ TOTALS ______________ ______________
Tested, January 29, 2026 Timothy N. Holt, DVM Lisa Herrick, Certified PAP Technician
PAP Risk Factor • Moderate Elevation Test Chart PAP test conducted at elevation 4000-5500 ft., (60% Repeatable, Predictive Value)
PAP
Use at Low Elev.
Use at Moderate Elev. (4000-5500 FEET)
Use at High Elev. (5500-7500 feet)
Use at Extreme
Score 34-39 40-45 46-49
(<4000 feet)
(>7500 feet)
Low Risk Low Risk
Low Risk Low Risk High Risk High Risk
Low Risk
Low Risk
Moderate Risk
Moderate Risk
Moderate Risk Moderate Risk
Do Not Use Do Not Use
Do Not Use Do Not Use
>50
* When selecting an animal based on a PAP measurement other factors besides those listed above should be considered such as genetics or pedigree, PAP EPDs, Systolic/Diastolic pressures, breed and previous illness, and genetic testing. * Special consideration should be given to the amount of time the animal was exposed to elevation (>5500 ft) prior to testing. The predictability and repeatability of the PAP measurement improves with longer exposure to higher elevation (minimum of 4 weeks is required). * This chart is based on animals greater than 10 months of age. Testing older animals (>12 months) results in a higher predictive and repeatability measurement. * Testing of younger animals (<12 months) may result in a greater variability to the predictive and repeatability measurement. Definitions: * Repeatable or Repeatability percent is a term used to give strength to a given PAP score predicting that if a retest PAP was carried out later in life then the score would be close to or within the same category as the original measurement. For example, a PAP measurement taken below 4000 feet only has a 40% repeatable percent, meaning that a repeat test only has a 40% chance of staying within the same risk category as the original test. * Predictive Value—this term is closely related to repeatability percent but specifically says that the original score can accurately predict what that animal will retest in a higher elevation. * R isk—Defined as the likelihood of an animal developing pulmonary hypertension themselves or being at risk for having a genetic predisposition for the disease.
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OCHSNER LAND & CATTLE PASTURE TO PLATE PRODUCTION SALE
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