Reproduction
Calving events, age-at-first-calving, calving interval, calves-weaned-per-cow-per-year. The data here drives the fertility component of every $ index — including the multiplier that makes accelerated calving systems pay for themselves.
Herd fertility KPIs
Computed from cattle_calving_records. Auto-refreshes when new events are recorded.
—
Calves weaned / cow / year
Operational benchmark
—
Lambings / cow / year
From system + MTNR1A
—
Age first calving (mo)
Median across recorded cows
—
Calving interval (days)
Mean of paired events
—
Mean litter size
Calves born / calving
—
Calves survival
% weaned of born
—
MTNR1A carrier freq
Out-of-season cycling
—
Profit / cow / year
From your weights
System scenarios how each pattern performs under your herd
Lambings/cow/yr ("LPEY") under each system, given your herd's MTNR1A carrier frequency and current nutrition score.
Age-at-first-calving tradeoff
Earlier joining brings forward calf output by up to a year — but conception rate drops if cow-calves aren't grown out properly.
Record a calving event
Each event ties to a cow ID. Days-since-prev-calving is computed automatically by the database trigger.
Recent calving events latest 100
| Date | Cow | Born | Alive | Type | Calving ease | Sire | Panel |
|---|