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1. Be aware of the times on feed deliveries and ending feed- If an ending feed is recorded on before a feed delivery on the same day this will cause issues. Some customers have made it a policy to record all ending inventories at a certain, later, time of day to reduce the likelihood of this happening.
2. Ending inventories taken before the start of the flock will not calculate variance- Any ending feed recorded before the start of the flock is the result of some other flock's consumption. Therefore, variance will not be calculated for these records. As a rule, we should not expect to see variance calculated until the first ending feed during the life of the flock. It is only at this point that we can determine whether the flock is on schedule, or not.
3. Ending Inventories recorded for the future will not calculate variance- The only ending inventory records returned by the feed plan process are those whose dates are less than or equal to the current date and time. Ending inventories recorded on future dates are not considered, and are treated as "bad data". The ending feed form will allow us to enter ending inventories for the future, but their values will all be formatted in red font to signify this.

Calculating the Variance

Variance adjusts consumption to more accurately reflect actual consumption.  Variance is recalculated during the Generation process whenever the current date coincides with a flock/house ending inventory record

Total Actual Consumption = Total feed deliveries - Current Ending Inventory

Total Calculated Consumption = The sum of all interval consumption amounts

Variance = (total actual consumption / total calculated consumption) - 1

Adjust the variance if the variance adjusts the % maximum positive adjustment or is less than the % minimum negative adjustment.

From this point until the the next ending inventory, this variance will be used to adjust consumption

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Scenarios

Feed Variance Scenario 1

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