The Animals section of your FDR covers every animal you ran on the platform through the season plus a wellbeing summary at the bottom.
Monthly mob snapshots drive on-platform and grazed-off counts month by month, and the peak cow figure
Livestock events drive deaths, calf-fate outcomes, and replacements joining the herd
Weight events drive average liveweight for the herd cohorts and start/end weights for other animals (recorded via the Weights module)
Predominant breed setting drives the breed shown for each cohort - set per season at the farm level
Animal Health events drive the wellbeing numbers (mastitis, lameness)
Mixed-aged cows (including first calvers)
This block covers the dairy cows that produced milk on your platform through
the season.
Monthly counts (on-platform and grazed-off): For each month from June through May, Trev shows the closing-of-month count of mixed-aged cows split by where they were. The on-platform total is the latest mob snapshot in the month, summed across mobs located on your home platform (Dairy Farm Effective Area - the dairy-producing land you supply Fonterra from). The grazed-off total is the same snapshot but for mobs anywhere else (grazing blocks, lease blocks, support land). Adding the two gives the total head for that month.
Stock movements. A chronological list of animals moving on and off the platform during the season, both Transfer In and Transfer Out events you’ve explicitly recorded, and mob location changes that imply a move between the home platform and a grazing block. Each row is tagged so you can tell which type of movement it is.
Maximum monthly cows. The highest end-of-month on-platform count of mixed-aged cows across the season. Drawn from the monthly closing counts above. Trev takes whichever month had the largest number on the home platform. This is a transparency figure shown alongside Peak milking cows; the value Fonterra receives is the Peak number below.
Peak milking cows. The highest count of cows in the milking vat at any single point during the season. Drawn from mob snapshots where the mob is on the home platform AND assigned to a mob category flagged as in-vat lactating. Because the in-vat filter is stricter than the on-platform filter used for monthly counts, this figure may be lower than the Maximum monthly figure above. This is the value Fonterra uses as a stocking-pressure benchmark.
Predominant breed. Trev uses the predominant breed you’ve set on your farm for this season. It’s a single selection, not derived from individual animal breed records, so if it looks wrong the place to check or change it is your farm season settings.
Average liveweight. Calculated from the weight events recorded for animals in this group via the Weights module, a weighted average across the season (each event weighted by the number of animals it covers). Only weight events in a Confirmed state are included. If a liveweight looks off, check that the relevant weight events have been recorded and aren’t sitting in another state e.g. draft.
Replacements entered the herd. The count of heifers that joined the milking herd this season i.e., aged up from R1→R2 on an Option 1 farm, or R2→MA on an Option 2 farm, see Stock class basics for more information on the two options. Drawn from livestock events around the season rollover.
Deaths. The total number of mixed-aged cow deaths recorded across the season. Drawn from death events on livestock in this group.
Rising 2-year-old heifers
Female dairy animals being reared to enter the milking herd. The metrics: monthly counts (on-platform / grazed-off), stock movements, Maximum monthly, predominant breed, average liveweight, and deaths are calculated the same way as in Mixed-aged cows above. Peak milking cows and Replacements entered the herd don’t appear here those are MA Cows-only metrics.
Which Trev stock classes feed this group depends on your Option (see Stock class basics). On Option 1 farms, your Trev R1 Heifer classes cascade up into the FDR R2 group (because the R2s themselves are already counted in the Milking Herd). On Option 2 farms, it’s a direct mapping i.e. your Trev R2 Heifer classes feed this group as-is. Autumn-born R2 classes shift up to the Milking Herd from 1 January via the mid-season rollover, which Trev applies automatically.
Rising 1-year-old heifers and calves
Female dairy calves and rising-1-year-olds destined to become R2s next season.
Same metric set and calculation as Mixed-aged cows.
Which Trev stock classes feed this group depends on your Option (see Stock class
basics). On Option 1 farms, your Heifer Calf classes cascade up to fill this group
on their own. On Option 2 farms, both your Trev R1 Heifer classes AND your
Heifer Calf classes feed this group together i.e they’re treated as a single cohort by
Fonterra. Autumn-born stock classes shift up to the R2 Heifers group from 1
January via the mid-season rollover.
Two related metrics live elsewhere: Calf fate (births, deaths during calf life,
bobby, reared dairy/beef) is reported in the Calf fates panel below; Replacements
entered the herd and Peak milking cows don’t apply here.
Calf fates
This panel reports on every calf born on-farm during the season and what happened to each one — their “fate at weaning”. The numbers come from livestock events in your Livestock module, filtered to the calf stock classes that apply to your farm (see Stock class basics for which classes count as calves under your Option choice).
Total number of calves born: All Natural Increase events recorded against calf stock classes during the season. Fonterra asks for this to include late slips born within the last month of pregnancy, and stillborns so make sure those are recorded as Natural Increase events in Trev as well. For each calf born, Fonterra splits the outcome across seven categories. Trev populates the categories it can from your livestock events; the rest you’ll fill in on the Fonterra portal yourself.
Dairy replacement animals (on any farm): Calves retained for the milking herd -those that survived to season end and rolled forward as next season’s R1 heifers. Derived from the remaining calf population once the other fates are accounted for.
Entered a beef rearing system: Calves sold to calf-rearing operations, sent for home kill, sold via the bobby route, or otherwise destined for beef. Sourced from Sale events on calf stock classes. Trev’s current event-mapping doesn’t separate bobby sales from other beef sales, they all flow into this field.
Processed as bobby calves: Not auto-populated by Trev. Because Trev counts bobby sales under “Entered a beef rearing system” above, this field stays at zero from our side. If you need it populated separately, enter the bobby count on the Fonterra portal manually and reduce the beef-rearing figure to match.
Processed as pet food: Calves processed for pet food, sourced from pet-food processing events on calf stock classes in your Livestock module.
Died naturally on farm (including still births): Death events recorded against calf classes during the season. Stillborns should be captured as both a Natural Increase AND a Death event so they’re counted in the total-born figure as well as this fate. Note: Trev currently includes any on-farm euthanasia in this figure too (see the next two fields).
Euthanised on-farm for humane reasons: Not auto-populated by Trev. Trev doesn’t currently distinguish euthanasia from natural deaths, so both flow into “Died naturally on farm” above. If you’ve euthanised calves on-farm for humane reasons, enter the count on the Fonterra portal manually and reduce the natural-deaths figure to match.
Euthanised on-farm for other reasons: Not auto-populated by Trev. Same as above for non-humane euthanasia. Enter manually on the Fonterra portal.
Fonterra displays each fate as both a count and a percentage of total calves born. If a calf-fate figure looks off, check your Natural Increase, Death, Sale and Pet-food processing events for the season’s calves in your Livestock module and/or Livestock Detailed report.
Breeding bulls
Mature breeding bulls grazing on your home platform during the season. This
block only covers stock classes tagged as breeding bulls (MA Bulls, Lease Bulls,
Autumn MA Bulls, R3 Autumn Bulls, and their lease equivalents). Young male
stock (R2 Bulls, R1 Bulls, bull calves and bobby calves) are reported in the Other
animals section below.
Monthly count on the home platform. For each month June through May, Trev shows the closing-of-month count of breeding bulls on your home platform, grouped by their predominant breed. This information is drawn from the latest mob snapshot of each month, filtered to mobs whose location is the home platform. Only on-platform counts are tracked here (bulls grazed off-platform aren’t surfaced in this block).
Predominant breed. Same source as for cows - the season-level breed setting on your farm. If a count looks wrong, check that your bulls are classified as Breeding Bulls (rather than R2/R1 Bulls) and that the relevant mob’s location is set to the home platform.
Other animals
Any non-milking animals you grazed on your home platform during the season. This includes carry over cows, beef cattle, sheep, goats, deer, dairy young stock (R1 / R2 Bulls, bobby calves, steers, mixed-sex Wagyu) etc. Each species recorded against an “Other” tagged stock class in Trev appears as its own line in this block.
For each species line, Trev shows:
Species name: Mapped from your stock class to Fonterra’s species list. Where the stock class doesn’t fit a Fonterra standard label, “Other” is selected with a free-text description.
Number of animals: The average month-by-month count of animals in mobs of this stock class on your home platform.
On the DFEA (Dairy Farm Effective Area) all season? (Yes / No): Yes if a mob of this stock class is recorded as the predominant stock class on your home platform in at least one snapshot per month, every month of the season. No otherwise.
Average start weight and end weight: Computed from your weight events for animals in this stock class. The earliest weight event in the season gives the start figure, the latest gives the end figure. Recorded via the Weights module. Shown as “-” if no weight events were recorded for this group.
Date first on-farm and Date leaving farm: The earliest and latest dates in the season that animals of this stock class appear as the predominant stock class of a mob on your home platform. Drawn from mob snapshots.
If a species you expected is missing, or a line shows up for animals you don’t
actually run, check the stock class assignment on the relevant mobs.
Animal Wellbeing
The Animal Wellbeing panel reports two herd-health figures Fonterra asks for: mastitis and lameness cases. Both come from your Animal Health module in Trev.
Mastitis cases: The total number of cows treated for clinical mastitis during the season, calculated as the sum of animals across animal health treatments where the condition was recorded as Mastitis or Black Mastitis.
Lameness cases: The total number of cows addressed or diagnosed for lameness during the season, calculated as the sum of animals across animal health treatments where the condition was recorded as Lame or Lameness.
If a count looks wrong, check your Animal Health treatment records and make sure the relevant condition has been set on each treatment.
Not yet sent: clinical-mastitis breakdown and dry-cow antibiotic %.
Fonterra’s portal also captures a separate clinical-mastitis count and the percentage of the herd dry-cow-treated with antibiotics. Their current API only accepts a single mastitis total, so for now Trev sends just that. The expanded reporting will follow once Fonterra extends the API.