Cattle Record Keeping: What to Record From Breeding to Sale, With Examples

Cattle record keeping means giving every animal one permanent ID and then writing down, on the day it happens, the handful of events that decide what that animal is worth: its breeding and pregnancy check, its calving, its weights, every vaccination and treatment with the date its withdrawal clears, and every sale or move. Get those five right and you can cull on evidence, sell breeding stock with a history buyers trust, keep treated cattle out of the food supply too early, and answer a state animal health official without digging through a truck dashboard.

This guide lists exactly what to record for each event, with a filled-in example of each, and shows how to keep the same record on Creatures, where every cow gets a profile and you can add a record against her from the chute. Two free tools help along the way without an account: the cattle weight calculator for a tape-and-length estimate when there is no scale, and the cattle pedigree chart maker for a printable three-generation pedigree with registration numbers.

It is written for beef herds first, from a handful of family cows to a commercial cow-calf operation, with notes for registered cattle where the rules differ.

Identification: the record every other record hangs on

A treatment written against “the black baldy in the back pen” is worthless the day you own six of them. Every other record in this guide points back to one line in your herd inventory, so give each animal a single permanent herd ID that you use on every entry, and then record every other identifier it carries alongside it. Cattle commonly carry several at once:

• A herd or management tag. Your own number, usually a large visual ear tag you can read across a pen. The Alabama Cooperative Extension System recommends a calf numbering system that builds in the birth year, using the international year letter so the first calf of a year gets that letter plus 001, which lets anyone read a cow’s age off her tag.
• Official USDA identification. An 840 Animal Identification Number tag or an older metal NUES “brite” tag. Under the Animal Disease Traceability rule, official eartags applied on or after November 5, 2024 must be both visually and electronically readable, and visual-only official tags already in an ear before that date stay official for that animal’s life. Our cattle ear tags guide covers choosing and applying a tag system.
• Brucellosis vaccination marks. A heifer officially calfhood vaccinated for brucellosis gets an official tag, usually orange, and a vaccination tattoo in the right ear. Montana’s protocol, for example, allows official calfhood vaccination from 4 to 12 months of age; your state sets the rules, so record the date, the veterinarian, the tag and the tattoo.
• A brand. Record the brand, its location on the animal and your state recording. Brand law is set state by state; the free livestock brand registration by state directory shows who records brands where you live, and our guide to reading a cattle brand explains how to write one down in words.
• A registration number and tattoo for registered cattle, from the breed association.

Tags fall out, so record replacements too. The APHIS traceability FAQ says whoever applies a new official tag to replace a lost one must record the date, the new official number and the old number if known, and keep that for five years.

Example inventory line: Herd ID N014 (born 2025, the “N” year), official EID 840 003 123 456 789, brand on left hip, black Angus heifer, born March 2, 2025, sire RX 104 (AI), dam H207, born on the place.

On Creatures: each animal gets a profile, and identifiers live on it as records. Choose Identification from Add Record for an ear tag or EID number, and a Registration record for the association, registered name and number, with the certificate attached under Files. The help center walks through care, growth and identity records. If you are still settling on a brand, the cattle brand designer lets you sketch one before you record it with your state.

Breeding and pregnancy check records

Breeding records are what let you plan a calving season instead of being surprised by one. For every cow and heifer, write down:

• Service date for AI, or the exposure window for a bull (the day he went in and the day he came out).
• Service method: AI, natural service, or embryo transfer.
• Sire: name and registration number, or the bull’s herd ID.
• AI technician and, for AI, the semen straw details you want to trace later.
• Pregnancy check: date, result, estimated fetal age, method, and who did it.

The pregnancy check is worth more when it records fetal age. According to North Dakota State University Extension, ultrasound and blood tests can diagnose pregnancy about 28 days after the last possible breeding date, palpation needs roughly 40 or more days, and only palpation and ultrasound can estimate fetal age. That fetal age turns a two-month exposure window into a predicted calving date for each cow and flags the late-bred ones.

Gestation averages about 283 days, but it is not a constant. The Beef Improvement Federation’s gestation length guideline gives breed averages from about 279 days in Angus to about 284 in Simmental, with mature cows and bull calves running a day or two longer. Plug a service date into the free cattle gestation calculator for the due date and window, and see our cattle gestation guide for the full breeding-to-calving chart. If you are weighing AI against a bull, the cattle AI cost guide breaks down the numbers.

Body condition belongs here too. BIF describes a body condition scale of 1 to 9 and notes that cows calving at 5 or better breed back earlier and have more vigorous calves; it suggests scoring 60 to 90 days before calving, at calving and at weaning, which leaves time to change the feeding plan.

Example breeding record: Cow H207, AI May 28, 2026, to AI sire RX 104 (registration number on file), technician J. Ruiz. Cleanup bull B12 exposed June 10 to August 1. Ultrasound July 6: pregnant, fetal age 39 days, so the AI took. Projected calving about March 7, 2027.

On Creatures: add a Breeding & Reproduction record to the cow and turn on Track as breeding cycle. Enter the service method, the sire (a Creatures profile or just a name), and the Service start date, plus a Service end date for a bull exposure, which widens the due window to match. After a pregnancy check that gives better timing, adjust the projection so the expected date and reminders move with it. The Breeding dashboard then lists every cow as Expecting, Due soon or Overdue in due-date order. The help center covers recording a breeding, tracking pregnancy and progress and the breeding dashboard.

Calving records

Calving is the busiest week of the record book, and the one most often filled in from memory a month later. Keep a pocket book or your phone in the truck and write it before you leave the cow. For each calf, record:

• Calving date and the dam’s ID.
• Calf ID, tagged as soon as it is safe to do so, and sex.
• Calving ease score. The Beef Improvement Federation’s calving difficulty scores run 1 (no difficulty, no assistance), 2 (minor difficulty, some assistance), 3 (major difficulty, usually mechanical assistance), 4 (cesarean section or other surgery) and 5 (abnormal presentation). BIF says every calving should get a score, even a calf born dead, and a cow that calved unassisted between checks can be scored 1.
• Birth weight, taken within 24 hours. BIF’s birth weight guideline prefers a good digital scale, accepts a calf hoof tape as a practical alternative, and says eyeball estimates are too inaccurate to submit or select on. Record which method you used.
• Twins, stillbirths, and anything unusual, such as a calf that needed help to nurse.

Example calving record: March 4, 2027. Dam H207. Calf R021 (the “R” year), bull calf, black. Calving ease 1 (calved overnight between checks). Birth weight 78 lb on a sling scale at 10 a.m. Up and nursing at the morning check.

Over a few seasons this is the data that improves a herd: which cows calve on their own and early in the season, which sires throw calves that come easy, and which heifers need watching. For what to watch for on the day itself, and when to call a veterinarian, see our calving guide.

On Creatures: open the cow’s Breeding tab and record the birth on the active cycle: the date, whether she is the birth parent or carried an embryo from another cow, and the counts born alive and stillborn. Creatures closes the cycle and keeps the calves together in a private calf crop, and Create calf profile starts each calf’s own record, already linked to its dam. That is where the calving ease, birth weight and every later weight go. See recording births and creating a litter.

Weaning and yearling weights

Weights are how you find out which cows and bulls actually raise calves that grow. Raw weights are misleading because calves are weaned at different ages, so beef programs standardize them.

Weaning weight. The Beef Improvement Federation’s weaning weight guideline says to weigh calves between 160 and 250 days of age and adjust to 205 days:

205-day weight = (weaning weight minus birth weight) divided by age in days, times 205, plus birth weight.

Breed associations then add an age-of-dam adjustment, because a first-calf heifer’s calf is lighter than a mature cow’s; BIF notes those adjustments differ by breed, so use your association’s table.

Yearling weight. BIF’s yearling weight guideline says to weigh between 320 and 410 days of age and adjust to 365 days: the gain since weaning divided by the days between weights, times 160, plus the adjusted 205-day weight.

Worked example. Calf P009 was born March 1, 2026, at 80 lb and weighed 560 lb at weaning on September 27, at 210 days old. Adjusted 205-day weight: (560 minus 80) divided by 210 is about 2.29 lb a day; times 205 is about 469; plus 80 gives about 549 lb before the age-of-dam adjustment. Weighed again 150 days later at 860 lb (360 days old): (860 minus 560) divided by 150 is 2.0 lb a day; times 160 is 320; plus 549 gives an adjusted yearling weight of about 869 lb.

Only compare calves inside the same contemporary group: BIF defines it as calves of the same sex and similar age, raised together on the same feed and pasture, and weaned and weighed on the same day. If you want one herd-level number, Alabama Extension suggests pounds weaned per cow exposed, which is the average weaning weight times your weaning percentage.

No scale? The free cattle weight calculator estimates live weight from heart girth and body length, and says itself that the result can be off by 5 to 10 percent, so mark those entries as estimates and keep scale weights for anything you submit to an association or use to price cattle. Our guide to weighing cattle compares scales and tapes, and the weaning calves guide covers timing and low-stress methods. Milking a family cow instead? Creatures’ Physical Measurement records also take home milk weights as a Milk Yield measurement.

On Creatures: log each weight as a Physical Measurement record, choose the weight metric, and mark it Estimated (tape or calculator) or Measured directly (scale). Weights build into a chart on the animal’s profile, and Add next reuses the setup for the next calf down the alley. The help center’s article on estimating animal weight with the weight calculator explains the tape method.

Record method and date with each entry; the cattle tape-measure guide explains why consistent measurements matter.

Vaccination and treatment records, and withdrawal dates

This is the record that keeps cattle healthy and keeps residues out of beef and milk. Which product, how much and how often is your veterinarian’s call; writing down what was actually given is yours. Beef Quality Assurance (BQA) is a voluntary industry program, but its national manual is the clearest template going. For cattle treated individually, it lists:

• individual animal ID
• date treated
• product given and the manufacturer’s lot or serial number
• dose
• route and location of administration
• the earliest date the animal will have cleared the withdrawal period
• name of the person who gave it

For cattle processed as a group, record the same fields against the group or lot ID. The manual also says to keep treatment records for at least three years from the date the cattle are sold or transferred, to pass a copy to the buyer, and to check every animal shipped to harvest against its withdrawal dates. When several calves in a group are treated over a few days, BQA gives the whole group a withdrawal date based on the last treatment with the longest-withdrawal product.

The withdrawal date is the entry you never skip. It comes from the label, or from your veterinarian when a product is used differently from the label, and it is the date before which that animal’s meat or milk must not enter the food supply. The withdrawal period is counted from the last dose, not the first, so a treatment given over several days clears later than its start date suggests. Writing the clear date itself, not just the number of days, is what makes a quick check before a sale possible. BQA also asks that injections go in front of the shoulder, never in the rump or back leg, so record the site.

Example treatment record: Heifer N014, June 3, 2026 (single dose, so also the last dose), 612 lb (estimated). Product as prescribed by Dr. Patel, lot 4471B, dose per the veterinarian’s instructions, given under the skin in the left neck in front of the shoulder, by K. Lund. Meat withdrawal clears July 1, 2026, counted from that last dose. (Every product has its own withdrawal; this date is only an illustration.)

Example group processing record: Spring 2026 calf crop, 42 head, May 20, 2026, respiratory and clostridial vaccines per the herd plan, lots recorded, neck in front of the shoulder, crew lead J. Ruiz. Booster due in the time frame the veterinarian set.

For which vaccines cattle usually get and when, see our cattle vaccination guide.

On Creatures: add a Vaccination record with the vaccine name and date; a Follow-up Date creates a linked reminder for the booster. For a treatment, add a Medication record dated on the last dose, choose Expand extra fields, and fill Withdrawal Period (days) and Withdrawal Applies To; Creatures counts from the record’s date and works out the withdrawal-until date for you. Both forms have Lot Number and Injection Site fields (under Expand extra fields on a single animal’s record), and you can attach a photo of the label or the veterinarian’s instructions under Files. For a processing day, a group record applies one vaccination or medication entry to every animal in the group, either with the same details for all or individual rows per animal. See health and medical records, apply records and track activity for a group, and reminders and upcoming care.

Sales, purchases and movements

The movement log is the record people forget until someone asks for it. For every animal that leaves or arrives, write down:

• date, number of head and each animal’s IDs
• buyer or seller, and where the cattle went or came from
• weight and price
• the documents that traveled with them: health certificate, brand inspection, test results, registration papers
• a check that nothing in the load is still inside a withdrawal period

Whether a move needs official ID and paperwork depends on the animal and where it is going. Under the federal rule, the classes that need official ID to cross state lines are sexually intact cattle and bison 18 months and older, all dairy cattle, and cattle used for rodeo, shows or exhibitions, which leaves out most feeder cattle. Unless an exemption applies, those animals also travel with an interstate certificate of veterinary inspection (ICVI), or another document both states agree to, such as an owner-shipper statement or a brand inspection certificate, per the APHIS traceability FAQ. The formal five-year retention duty in 9 CFR Part 86 falls mainly on the veterinarians, officials and facilities that issue or receive those documents, but keeping your own copy of every certificate and sale paper costs nothing. States add their own rules, so check with your state veterinarian’s office before a first interstate move.

Example sale record: October 14, 2026. Sold 6 steer calves (P003, P005, P007, P011, P016, P020) to a neighboring feeder, private treaty, average 575 lb, paid by check. All withdrawal dates cleared before sale. Treatment history copy handed to the buyer.

On Creatures: when you sell an animal, you can transfer it to the buyer’s account with its full record history, so the treatment log goes with it (the first transfer is free). See transferring an animal to its new owner. Sale prices and costs can also go into Creatures’ farm bookkeeping, which tracks money per animal.

Before sharing the herd’s history, review cattle record privacy across the profile, individual records, identifiers and downloaded documents.

Registration numbers and pedigrees

For registered cattle, the association’s records are only as good as yours. Keep the registered name, registration number and tattoo for every animal, the sire’s and dam’s registration numbers, and a copy of each certificate. If you take part in your association’s performance program, the calving ease scores, birth weights and adjusted weaning and yearling weights above are exactly what it asks for, and they feed the association’s expected progeny differences (EPDs), which are generally comparable only within a breed, not across breeds. For background on the breeds themselves, start from the Creatures cattle species page.

On Creatures: a Registration record holds the association, registered name and number with the certificate attached, and linking sire and dam builds the animal’s pedigree tab over generations. For a sale sheet or a show, the free cattle pedigree chart maker prints a three-generation pedigree with registration numbers as a PDF, no account needed.

Paper record book, spreadsheet, or app?

Use whichever you will actually fill in at the chute with cold hands. A pocket calving book or a printed herd record book works well for a small herd: Kansas State Research and Extension publishes a cow/calf record book and Michigan State University Extension a beef cow calving and breeding record for 4-H members. The rule is one book, kept in one place, filled in on the day, and copied before a spilled bucket or a barn fire takes the only copy.

Spreadsheets sort and total, but most still depend on transcribing a note from your pocket, and they know nothing about due dates or withdrawal dates. A per-animal profile removes that step: every entry is tied to one cow for life, the breeding projects her calving date, the medication record works out the withdrawal date, and a follow-up date becomes a reminder. That is the gap Creatures is built to close, and the free livestock record keeping guide covers the same system across species, including the money side.

A farm website can present selected animals and contact details while the working herd record stays private.

Whatever you choose, work in rhythms rather than a heroic catch-up:

• At the event: every breeding, calving, treatment, sale or death, before you leave the pen.
• At each working: processing, weights and body condition.
• Each season: reconcile the inventory, replace lost tags and record the new numbers, and plan breeding groups from last year’s calving data.
• Once a year: review culling and mating against the whole record, not the cow that caught your eye at the bunk.

Frequently asked questions

What records should a cattle farmer keep?

At minimum: an inventory with one ID per animal, breeding dates and pregnancy checks, calving records (date, calving ease, calf ID, sex, birth weight), weaning and yearling weights, every vaccination and treatment with its withdrawal clear date, and every purchase, sale, move and death. Registered herds add registration numbers and certificates.

What cattle records are legally required?

Fewer than most summaries suggest, and they depend on the animal and the move. Federally, certain classes of cattle need official ID to move interstate, and anyone who replaces a lost official tag must keep a record of the old and new numbers for five years. Drug labels and prescriptions set withdrawal times you must follow before cattle are marketed. Your state may add brand, brucellosis or movement rules, so confirm with your state veterinarian’s office.

How long should I keep cattle records?

Keep treatment and processing records at least three years after the cattle are sold (BQA), tag replacement records five years (APHIS), and breeding, calving, weight and registration records for the life of the cow and her daughters, since they drive every future culling and mating decision.

What is a good calving ease score?

A 1, meaning the cow calved with no assistance. Scores of 2 and 3 mean she needed some or major help, 4 means a cesarean or other surgery, and 5 records an abnormal presentation. Tracking scores by sire is one of the quickest ways to spot a bull whose calves come hard.

Do I need a scale to keep weaning weights?

A scale gives the numbers worth submitting to an association or pricing cattle on. For your own tracking, a weight tape or the free cattle weight calculator gives a useful estimate, as long as you record it as an estimate.

Can I keep cattle records on my phone?

Yes. Creatures works in a phone browser and can be added to your home screen, so a calving or treatment can be logged at the chute and lands on that cow’s profile straight away.

Do this next on Creatures

Setting up a herd book for the first time, or moving this season’s notes off paper? These are the next steps, in the order most cattle owners take them.