SF_GR310 Sioux Falls, SD Fri Feb 22, 2019 USDA-SD Dept of Ag Market News Rock Valley Hay Auction for Thursday, Feb 21, 2019 Receipts: 46 loads Last Week: 60 loads Last Year: 54 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: Premium: Large Rounds, 4 loads 152.50-162.50. Good: Large Rounds, 7 loads 135.00-150.00. Fair: Large Rounds, 6 loads 122.50- 130.00. Grass: Premium: Large Rounds, 6 loads 160.00-170.00. Good: Large Rounds, 11 loads 140.00-157.50. Fair: Large Rounds, 6 loads 125.00- 137.50. Alfalfa / Grass Mix: Premium: Large Rounds, 1 load 180.00. Utility: Large Rounds, 1 load 40.00 Cornstalks: Large Rounds, 3 loads 77.50-80.00. 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_GR310.txt http://www.ams.usda.gov/lpsmarketnewspage 0827C rmk