SF_GR309 Sioux Falls, SD Mon Dec 31, 2018 USDA-SD Dept of Ag Market News Rock Valley Hay Auction for Monday, Dec 31, 2018 Receipts: 18 loads Last Week: 32 loads Year Ago: No Reported Sales Prices dollars per ton, except where noted. All sales FOB Rock Valley, Iowa, vicinity. One load Small Squares equals approximately 5 tons; Large Squares and Large Rounds range from 10-25 tons per load. Alfalfa: Good: Large Rounds, 3 loads 145.00-160.00. Fair: Large Rounds, 3 loads 140.00. Grass: Premium: Large Rounds, 1 load 145.00-160.00; Large Squares 150.00. Good: Large Rounds, 1 load 130.00. Fair: Large Rounds, 1 load, 112.50. Utility: Large Rounds, 1 load 80.00. Alfalfa/Grass Mix: Premium: Large Rounds, 1 load 150.00. Corn Stalks: Large Rounds, 4 loads 52.50-55.00. Alfalfa guidelines (domestic livestock use and not more than 10 pct grass) Quality ADF NDF RFV TDN-100 pct TDN-90 pct CP Supreme <27 <34 >185 >62 >55.9 >22 Premium 27-29 34-36 170-185 60.5-62 54.5-55.9 20-22 Good 29-32 36-40 150-170 58-60 52.5-54.5 18-20 Fair 32-35 40-44 130-150 56-58 50.5-52.5 16-18 Utility >35 >44 <130 <56 <50.5 <16 RFV calculated using the WI/MN formula. TDN calculated using the western formula. Quantitative factors are approximate and many factors can affect feeding value. Values based on 100 pct dry matter. Quantitative factors are approximate, and many factors can affect feeding value. Values based on 100 pct dry matter. End usage may influence hay price or value more than testing results. Grass Hay guidelines Quality Crude Protein Percent Premium Over 13 Good 9-13 Fair 5-9 Utility Under 5 Source: USDA Market News Service, Sioux Falls, SD 605-372-8350 www.ams.usda.gov/mnreports/SF_GR309.txt http://www.ams.usda.gov/lpsmarketnewspage 1516C rmk