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Weights & Average Daily Gain

Every weight you log builds a growth history for that rabbit, and OmniBurrow turns it into a chart against your target line, an average daily gain figure, and a projected butcher date. The defaults are a 1.5 oz/day target gain, a 72 oz (4 lb 8 oz) target butcher weight, and 70 days to get there — all three are yours to change in herd settings, and breed-specific targets may differ.

Log a weight

There are four ways in, and which you want depends on how many animals are in front of you.

Way inGood for
The rabbit's own recordOne animal you already have open
The record-weight screenOne animal, or a batch entered together
Barn ScanA whole row of cages, scanning as you go
Data entry sessionsWorking down a list without navigating

Open a rabbit, find the Weights section, and add a weight in pounds and ounces. For several animals at once, go to Dashboard → Data Entry and use the Weights tab.

One weight per rabbit per day is kept, so re-entering a day corrects that day rather than adding a second row.

Weighing a whole row of cages

Use Barn Scan. Scan a cage card's QR code, enter the weight, save, and the camera re-arms for the next cage — no searching for the rabbit in between. Mobile-only, and it works with no signal.

Reading the growth chart

The chart plots each weigh-in against the rabbit's day of life, not the calendar date, so it lines up with where the animal should be for its age. The straight line running through it is your target: day of life multiplied by your ADG target, which is where a rabbit growing exactly at target would sit.

Above the line is ahead of target, below it is behind. Two weigh-ins are the minimum before the chart appears — one point is not a trend.

Average daily gain

ADG is the plain thing it sounds like: total weight gained divided by the days between the first and the last weigh-in, shown in ounces per day beside the chart.

Because it spans the whole recorded history it smooths out a single bad weigh-in — which also means a rabbit that grew fast early and then stalled still reads reasonably. To see the stall, look at the shape of the chart rather than the single number.

ADG is aggregated elsewhere too — per litter, per line, and per grow-out group — where it becomes the figure worth comparing between families and feeds. See Feed & Feed Conversion.

Projected butcher date

OmniBurrow projects when each rabbit reaches your target butcher weight:

  • With a weight recorded — it takes the latest weight, works out how much is still needed to reach your target weight, divides by your ADG target, and counts that many days from today.
  • Already at or above target weight — the projection is today, not a stale date from before the animal was ever weighed.
  • With no weight yet but a date of birth — it falls back to the date of birth plus your target butcher age, 70 days by default.
  • With neither — there is nothing to project from, and no date is shown.

The projection moves every time you weigh, which is the point: it answers "when is this batch ready" from what the animals are actually doing, not from a plan made at birth.

Bulk weighing

For a whole litter or grow-out batch, weigh in bulk rather than one record at a time.

Dashboard → Data Entry → Weights gives you one date and a row per animal. It needs a connection.

Screenshot needed

Mobile rabbit weight history showing the growth chart, the ADG figure, and the projected butcher date.