19/02/2025
I have looked into this issue. What I have found is more an issue with how we display data and need to work on a solution. Based on how we show this data Amandas calculation is correct but the data used in the calculation is wrong. The Fresh delivered of 25981 the the fresh amount fed to cows with the refusals taken off. So this figure is actually 27180 kg fresh.
So if we do the calculation based on the above figure.
- Fresh delivered = 27180
- Leftover = 1199
- Consumed=27180 - 1199 = 25981
- TMR % DM on the same day to the same pen was 48.75%
- 25981 X 48.75% = 12665.7 total dry matter
- 12665.7 / 179 cow = 70.75 lbs per cow
70.75 then matches what the portal is showing.
So the column name is correct. We need to display the data differently in order to make it easier to understand what data is being shown.
A Dairy Consultant in the US spotted this and I believe its important to correct this as described. Please see below:
Amanda,
I'm becoming more and more comfortable with details going in and coming out of Feedlync at Mercer Vu Farms. I have a suggestion for the developers. See this screenshot:
I've done the math by hand on several different occasions. The header for Dry Matter Consumed is actual Dry Matter Delivered. The leftover amount has not been subtracted from this column. For pen 4 in the screen shot the math done manually looks like this:
- Fresh delivered=25981
- Leftover=1199
- Consumed=25981-1199 = 24782
- TMR % DM on the same day to the same pen was 48.75%
- 24782 X 48.75% = 12081
- 12081/179 cows = 67.49 consumed, not 70.75 shown as the average above the column header
However, if you reduce the 70.75 avg by the leftover avg of 4.61 the Dry Matter consumed is the same as the hand calculation. The column header needs different wording and an additional column should be added showing actual DM consumed.
I hope this makes some sense and can help someone else, especially if/when the developers can fix this error.
Bob
Robert C. Fry, DVM
12246 Locust Grove Rd.
Kennedyville, MD 21645
410-652-5538