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Range Condition & Stocking Rate

Range Condition & Stocking Rate. Range Condition. Determining the health of a range Need to know: Region (Eastern Glaciated Plains) Range Site (Thin Silty) Plants Present and amounts of each in percent Place plants in correct categories on worksheet Rule out any invaders

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Range Condition & Stocking Rate

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  1. Range Condition & Stocking Rate

  2. Range Condition • Determining the health of a range • Need to know: • Region (Eastern Glaciated Plains) • Range Site (Thin Silty) • Plants Present and amounts of each in percent • Place plants in correct categories on worksheet • Rule out any invaders • Determine maximum allowable per plant

  3. Determine the Range Condition • Eastern Glaciated Plains • “Clayey” Range Site Bluebunch Wheatgrass 25% Green Needlegrass 20% Plains Muhly 15% Smooth Brome 10% Western Yarrow 10% Drummon Milkvetch 10% Rubber Rabbitbrush 10%

  4. Determine the Range Condition • Complete Range Condition Worksheet • Fill in plants and percentages that are present

  5. Range Condition • Determine the Total Percent of plants you are allow to have • Put these maximums in the second column of the worksheet • Determine Condition • Poor = 0% - 25% • Fair = 26% - 50% • Good = 51% to 75% • Excellent = 76% - 100%

  6. Determine the Range Condition • Determine the Adjusted Maximum Percentages Allowed • Choose the “smaller” number of the first two columns and place in the last column

  7. Determine the Range Condition • Determine Range Condition Rating • 70% • Determine the Range Condition • Good • Complete Stocking Rate Problems

  8. Terms • Animal Unit = forage consumption of a 1,000 # cow (dry or with calf) • all other animals are compared to a cow • Bull & Horse = 1.25 AU • Sheep = .2 AU • Animal Unit Month (AUM) = amount of forage required to feed one AU for one Month

  9. Calculating Stocking Rates • AUM’s/acre X Acres = Total AUM’s • .2 AUM’s/acre x 1000 acres = 200 AUM’s • How many cows can you run for 4 months? • AUM / M = AU • Answer = 200 / 4 = 50 • How many months can you run 25 cows? • AUM / AU = M • Answer = 200 / 25 = 8 months

  10. Calculating Stocking Rates • How many months for a herd of 50 sheep and 10 cows? • AUM / AU = M • 200 / ((50 x .2) + (10 x 1)) = 10 • How many cows along with 4 horses for 2 months? • AUM / M = AU • 200 / 2 = 100 AU • 100 AU = (4 x 1.25) + cows • 100 - 5 = 95 cows

  11. Calculating Stocking Rates • How many cows along with 50 sheep and 4 horses for 4 months? • AUM / M = AU • 200 / 4 = 50 AU • 50 AU = (50 x .2) + (4 x 1.25 ) + cows • 50 = 10 + 5 + cows • 35 = cows

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