Value of Crops for Livestock Feeds Calculator

This calculator can be used in two ways:

  1. It can help determine the options for an annual crop that has been damaged due to drought/flood or has reduced yield that makes it potentially undesirable to combine.
  2. For mixed operations with standing crop, it can help decide if swath grazing, baling as greenfeed or silaging the annual crop is a lower cost option than purchased hay.

In this calculator, the nutrient value removed from the field and the value from remaining litter and manure is included. The BCRC's Forage Cost of Production Calculator is another tool that can be used together with this calculator to find the lowest cost homegrown feed option.

User Guide

  1. Step 1: Select whether the value of manure from swath grazing should be included, your crop, the area of the field, the estimated grain yield, the estimated straw yield and grain price. Include estimated discount if the crop has been damaged.
  2. Step 2: Input the number of cows, yearling steers, yearling heifers and calves that would be grazing on this field if the field were swath grazed.
  3. Step 3: Input the current value of N, P, K and S per lb. This puts a value on the manure.
  4. Step 4: Include machinery costs. Provincial custom rate ranges are included in Table 4a for reference.

Enter information in the yellow highlighted cells.

User data is not collected, stored or retained for any BCRC interactive calculator. Please note that by exiting or refreshing the page, all data will be automatically cleared and cannot be recovered.

Step 1. Select crop and field area
Include value of manure returned to field?     Manure value is included only for swath grazing when this is set to Yes.
Select crop     Enter the $/bu price to convert to $/tonne if needed.
Total acres ac   Conversion - $/bu to $/tonne
Estimated grain yield bu/ac   Grain price $/bu
Estimated straw yield tonne/ac   Conversion to bushel bu/tonne
Crop price* $/tonne   Price per tonne $/tonne
*If a crop has been damaged, input the reduced price here.
Step 2. Grazing on field (leave yellow cells blank if field is not grazed)
Manure from Grazing lbs per day days grazing herd size Manure produced
Beef cow
Steers
Heifers
Calves
Lbs total      
Kgs total      
Step 3. Current Value of Nutrients
Nutrients Price ($/lb)  
Nitrogen (N) $/lb
Phosphorus (P) $/lb
Potassium (K) $/lb
Sulphur (S) $/lb
Step 4. Machinery costs (see Table 4a or use your own)
Swathing $/ac
Combining $/ac
Forage harvesting/silaging $/ac
Baling & Transportation $/bale
Cost of purchasing hay or cost to produce hay $/ton
Table 4a. Estimated provincial custom rates
Operation AB (up to 2018) SK MB ON
Swathing $9-16/ac $12.10-14.65/ac $12-14/ac $22/ac
Combining $30-45/ac $33.77-48.94/ac $31-44/ac $53-83/ac
Forage harvesting/silaging $35-65/ac $33.88-93.52/ac $26-69/ac $125-333/ac
Baling & Transportation $9-14/bale $9.47-17.02/bale $12-17/bale $10-14/bale
This table provides a range of custom rates for selected provinces, that can be inputted in Step 4. Rates depend on equipment size and location.

SUMMARY RESULTS

SUMMARY RESULTS ($/ac)
  Value of harvested crop Swath grazing cost Greenfeed/Bale feeding cost Silage cost
Value of crop or hay plus expenses
Nutrient value removed from field
Nutrient value of straw left over
Nutrient value of manure added
Total cost
SUMMARY RESULTS ($/tonne)
  Value of harvested crop Swath grazing cost Greenfeed/Bale feeding cost Silage cost Cost of hay
Value of crop or hay plus expenses
Nutrient value removed from field  
Nutrient value of straw left over  
Nutrient value of manure added  
Total cost

Nutrient levels are adapted from the CowBytes Feed Table ver 5.41, Alberta Agriculture and Rural Development.