Recording weight: what matters in the curve
Weigh regularly, weigh identically, and read the curve rather than the single value, that is how weight becomes a useful measure.
Weight is the one value nearly every keeper can record without specialist knowledge. It only becomes useful as a series, though. A single value says almost nothing: The direction over weeks says a great deal.
Always under the same conditions
So that values stay comparable, weighing should proceed as identically as possible:
- the same scales, ideally with gram resolution,
- a fixed point in the feeding rhythm, usually before the next feeding,
- a calm container on the scales, tared beforehand.
Weighed right after a large meal, the figure jumps without anything having changed in the animal. Such outliers make the curve restless and the assessment harder.
A fixed rhythm beats spontaneous checks
For adult animals a monthly weighing usually suffices. Growing juveniles, animals recovering from illness or settling in are weighed more often. Set weighing up as a recurring appointment: Then the series builds itself instead of lapsing in busy weeks.
Reading the curve
Three things are of interest:
- The direction. Is the weight rising, holding or falling across several measurements? 2. The pace. A slow decline over months is something different from a marked loss in two weeks. 3. The context. Do the decline and refused feedings coincide? Is a shed due? Is brumation under way?
ReptiCare flags a marked loss against the peak of the last 90 days. That is a rule of thumb, not a finding: after a planned brumation a drop is expected, and after a large clutch as well.
A target weight, with judgement
A stored target weight helps with animals that are deliberately being built up or slimmed down. It is a reference point for you, not a target the app enforces. The right size depends on species, age, sex and build, and is best set with veterinary input.