Pre-Breeding Records That Pay Off at Calving and Lambing

Breeding season sets next year's calf and lamb crop weeks before a single animal is turned out. The pre-breeding herd-health visit is when you learn whether your bulls and rams are sound, which females are fit to breed, and whether vaccinations are timed to protect a pregnancy. The records you make that day are the reason next spring's questions have answers — and the records you skip are the gaps you feel at preg-check and at weaning.

Pre-breeding records are not extra paperwork. They are the short, predictable list of facts a vet visit puts in front of you: a soundness result per male, a vaccination per group, and a body-condition score per female. Capture them while they are true, and the hard decisions later get easier.

The male exam: record it per bull and ram

A breeding soundness exam (BSE) tells you whether a male is fertile before he is the only one with a group of females. A bull that fails at turnout means open cows found at preg-check — months late and far down the road.

Extension guidance is to run the exam early enough to replace a failure. For cattle, that means a BSE roughly 4 to 6 weeks before turnout. For sheep, checking rams 6 to 12 weeks before tupping leaves time to act on a poor result. The point of the timing is the same in both: find the problem while you can still do something about it.

The record that earns its place is per male, not per herd:

FieldWhy it matters
Tag / IDA passing result is useless if you can't tie it to the animal
Exam dateAnchors the result in time before turnout
ResultSatisfactory, questionable, or unsatisfactory — and on what
NotesScrotal measurement, feet, lameness, anything the vet flagged

A herd with four bulls and one unsatisfactory result is a different plan than a herd with four sound bulls — but only if each result is tied to a tag. The same is true for a flock's rams. Record the exam against the male's ID the day it happens, and the turnout list writes itself.

Vaccinations: timed to breeding, recorded by group

Pre-breeding vaccines protect the pregnancy, so their timing is tied to turnout, not to the calendar. For cattle, the reproductive vaccines — bovine viral diarrhea virus (BVDV) and infectious bovine rhinotracheitis (IBR) — are given ahead of breeding so cows carry protected pregnancies. Work out the actual protocol with your vet; what matters for records is that the product, date, and batch get captured the day the herd goes through.

The Canadian data on this is revealing. A 2023 survey of Canadian cow-calf herds found that roughly 92% of cows and replacement heifers were vaccinated against IBR and BVDV — but only about 72% of bulls. That bull gap is a quiet risk: bulls can carry and spread BVDV, and an unvaccinated male in a breeding group is one more way a protected cow meets an unprotected carrier. Recording which males got the pre-breeding vaccine closes the loop.

For the record, a pre-breeding vaccination is a header-plus-lines entry: the product, batch number, date, and withdrawal once, then a line per animal or group. The same structure as any working day — set it before the first dose.

Body condition: the strongest signal you can record in seconds

Body condition score (BCS) is a number you can take in seconds, and it predicts more about the breeding season than anything else you'll write down that day. A thin female at breeding is a female less likely to breed back on time, and a chronically thin one is a cull candidate hiding in your breeding group.

The targets are well established. For beef cattle on a 1–9 scale, the aim is around a BCS 5 at breeding — roughly 19% body fat — with cows maintaining condition through the breeding period. For sheep on a 1–5 scale, lowland ewes are best around 3 to 3.5 at tupping, and any ewe sitting below that is a candidate for flushing or a closer look.

The record is the same in both: a BCS per female, taken now. Once it is a number on each animal, the decisions fall out of it. The thin dozen get sorted, flushed, or watched. The two or three that are thin every year become the cull list before you spend a winter feeding them. A BCS taken and recorded once is cheap; the same score reconstructed from memory at weaning is a guess.

The female list: who gets bred, and when

The visit is also when the breeding groups take shape. The records that matter:

  • Culls pulled before exposure. An open, lame, or aged female pulled now saves a season of feed and a wasted breeding. Recording the cull reason — not just the cull — is what keeps the same decision from recurring.
  • Exposure dates. The day the bull or ram goes in with a group sets the due-date window nine months or five months out. Record the male, the group, and the date; next spring's lambing and calving watch lists come straight off it.

Ranch.Bot is built and tested on a 200-ewe commercial operation in Northern Alberta, where recording ram-exposure dates by group means each pen's lambing window is known before the first ewe bags up — and that head start is the whole point of keeping records through a busy breeding week.

A pre-breeding records checklist

Copy this onto whatever you use. It works on paper, in a spreadsheet, or in software:

PRE-BREEDING VISIT — HEADER Date: ____ Vet: ____________ MALE SOUNDNESS (one line per bull/ram) ID | Species | BSE date | Result | Notes FEMALES — VACCINATION (by group) Group | Product | Batch | Date | Withdrawal FEMALES — BODY CONDITION (one line, or the thin ones) ID | BCS | Note (flush / watch / cull) BREEDING GROUPS Group | Male(s) in | Exposure date | Females exposed

Fill the male lines as each BSE comes back, score the females while they're in the corral, and set the exposure dates when the groups are made. Done in pieces over the visit, it's minutes of writing for a year of answers.

Paper, spreadsheet, or app

The checklist works in any of them. Paper is fast at the corral and weak on search later. A spreadsheet skips the evening of typing but still means navigating cells with gloves on. A purpose-built tool — Ranch.Bot takes plain-language notes from a visit like this and turns them into structured records you can search by tag, by group, or by date — keeps the same header-and-lines shape minus the re-entry. Whichever you pick, the test is the same: can you answer, next spring, which males were sound, which females were thin, and when each group was exposed?

Pre-breeding records are quiet work — nothing about them feels urgent the day of the visit. They pay off months later, at preg-check, at lambing, and at weaning, when the answers are already written down and you're not guessing.


Ranch.Bot turns plain-language notes from your pre-breeding visit into structured records you can search later — review every record before it saves. Start a 14-day free trial at ranch.bot.