SF_GR310 Sioux Falls, SD Fri Aug. 16, 2019 USDA-SD Dept of Ag Market News Rock Valley Hay Auction for Thursday, Aug. 15, 2019 Receipts: 105 loads 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: 40 loads: Good Large Square, $127.50 - $142.50; Fair Large Square, $100.00 - $115.00; Utilty Large Square $65.00 - $80.00. Good Large Round 117.50 - 142.50; Fair 100.00 - 117.50. Grass: 31 loads: Premiun: Large Round, 172.50; Good: Large Rounds 9 loads $125.00 - 145.00; Fair: Large Rounds $92.50 - 120.000; Utility Large Rounds $65.00 - 87.50. Straw: 16 loads: Oat Straw Large Square 87.00 - 115.00; Large Rounds, $92.50 - 110.00. Wheat Straw Large Round 112.50 Cornstalks: Large Rounds, 5 loads 40.00 - 50.50 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, Des Moines, SD 515-284-4460 www.ams.usda.gov/mnreports/SF_GR310.txt http://www.ams.usda.gov/lpsmarketnewspage 902C njb