Alfalfa PEAQ Readings – May 16, 2016

Alfalfa field
Dodge County Forage Council’s PEAQ Readings – May 16, 2016

Predictive Equations for Alfalfa Quality (PEAQ) is a method to measure standing alfalfa’s forage quality before it’s harvested. Agronomists at the University of Wisconsin – Madison developed this method to help predict alfalfa’s Relative Feed Value (RFV) at the time of cutting.

Several Dodge County Forage Council producers will be reporting PEAQ readings from around the county on Tuesdays and Thursdays, through May 26, or as long as their hay is standing. When alfalfa RFV’s near 160, it’s usually time to start harvesting first-crop hay.

That’s because first-crop alfalfa can rapidly drop 3-5 points of RFV per day as plants mature. Alfalfa quality should be 150 RFV for milking dairy herds and 120-130 RFV for heifers, stocker cattle and lactating beef cattle.


May 16, 2016
Location RFV Growth Stage Growth Stage/Age of Crop
Hustisford 195 23 inches
Hustisford 176 25 inches Vegetative; 1st year alfalfa
Hustisford 178 24 inches Very early
Mayville 180 not given 2nd year alfalfa

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