Kari, an app for beef suckler farms
kari Ask to join

For beef suckler farms

Record once.
Put it to work.

Less admin.
Easier reporting.
Better herd decisions.

Phone or paper. The same records, working for your farm.

In daily use and in testing · more test farms join this winter

01Record your way

  1. Photograph
  2. Check
  3. Confirm
kariCrush day · 12.11
2041Maasika
Save, pick the next
App view · illustration, real screenshot to follow
Direct entry

Write it once. No retyping the sheet.

02One animal record

2041Maasika

Weight history

664 kg on 19.10 → 671 kg new

Breeding record

In calf, vet 5 new

With the bull from 11.06 + vet 5 → due from 21.03

new today's entry   grey already on her page

The data you keep for EPJ and PRIA anyway, put to work for your herd.

03Two useful outcomes

Easier reporting

EPJPregnancy check of 12.11 · 24 cowsready
EPJWeights of 12.11 · 24 animalsready
PRIANothing owed from this day

You check and submit: download the file, upload it in Liisu, confirm the day.

Better herd decisions

2041 stays · keep her heifer calves

  • Calved on her own 5 of 5
  • In calf in the first 3 weeks every season
  • Calves weigh 47 % of her, herd middle 45 %

From five seasons on her page, with today's check added.

What can Kari help you with?

Who calves next?

2057due from 18.03vet 5
2041due from 21.03vet 5
3112due from 02.04vet 4+
Print barn sheet

Prepare for calving and see which cows need attention.

Ready for the test farms

See an example

The list runs in due order from each cow's own days with the bull, narrowed by the vet's mark. A cow that is clearly not in calf comes off with one click. The barn sheet has Alone, Easy, Hard, Vet and Alive, Dead to circle. Follow one calving through Kari.

What needs recording today?

Pregnancy check 12.1124
with the bull since calving21
no bull dates, ticked to check3
Calves in the 200-day window6

Prepare the job and see what information is missing.

Ready for the test farms

See an example

Kari proposes who comes in and why, with nothing left out silently. It prints the sheet in the order you will write it, and lists the calves whose 200-day weight window closes soon, so they are weighed the same day.

What do I need to report?

PRIABirth of 6112by 22.04
EPJCalving of 2041by 27.04
EPJWeights of 12.11confirm upload

See what needs filing and prepare it from existing records.

Ready for the test farms · direct connection planned

See an example

Each row downloads the file the register wants, with the steps for e-PRIA or Liisu. You upload it and confirm the day. Kari marks it filed only when the register shows it back. If a filed record changes, Kari drafts the correction letter for you to send.

Which cows and replacements should I keep?

consider removing3
look at her4
keep15
3131: empty at the check

Compare animals and understand the reasons behind a suggestion.

Ready for the test farms

See an example

Every cow is judged on six questions from her own records: a calf every year, early in the season, on her own, a heavy calf for her size, calm, sound. The reason stands beside each mark. Heifers are ranked from their own growth and their dam's record; cows that never missed are listed as bull dams. The farm sets the targets, and you decide at the walk.

Which bull fits my herd?

Your herd, last 3 years
assisted calvings18 %
sorted bycalving ease of his calves
example bull A112top 10 %

Connect recorded breeding priorities with bull choice.

Ready for the test farms

See an example

Kari reads your own herd's hard calvings, light calves and long intervals, then lists EPJ's evaluation of every bull of your breed, sorted by the value your records flag. It also shows how closely he is related to your females. The list never picks the bull for you.

Is my herd improving?

2024/252025/26
Calved in first 3 weeks58 %63 %
Weaned per 100 to the bull8389
kg weaned per cow203214

See changes in reproductive and weaning performance over time.

Ready for the test farms

See an example

A season runs from turnout to turnout. Each figure is set against the season before. Every winter and grass group is also compared within itself, with both ends marked. The season a herd arrives is shown, never compared.

Beta · in development

Grazing

Today: plan the season on the chart, mark the paddock the herd is in from the phone, see which paddocks have rested enough and which cows held up on grass.

Becoming: the grazing record PRIA's field book asks for, written from the moves you already make, and the PRIA move report when a group crosses into another registered site.

Winter feed

Today: the winter budget, the bales in the yard, the feeding week, and every animal against its feed group on the same ration.

Becoming: the manure record for PRIA's field book from the bedding and feed you already log, and how well straw and feed turn into compost.

Finishing

Today: readiness in yard words, the slaughter result brought back onto the animal, its dam and its sire, and how well each person's fat score matches the grade.

Becoming: which lines carry meat quality and are worth breeding from.

Planned: sending to EPJ and PRIA directly, once they give access. Until then Kari prepares and you check and send.

Previews are drawn from Kari's screens, on made-up animals.

See one calving through Kari

One event becomes a calf record, reporting information and breeding history.

Follow the exampleOpen walkthrough
FebruaryThe calving listIn due order from the bull dates and the November check. One click takes a cow off; the barn sheet prints for the wall.
CalvingMob 2026 · 18 due
2057due from 18.03 · vet 5 on 12.11
2041due from 21.03 · vet 5 on 12.11
3112due from 02.04 · vet 4+ on 12.11
3104due from 24.04 · vet 4 on 12.11

Where it goes: nowhere yet. What Kari says: who is due first, so the pen is ready.

2 April, 04:30She calves; you circle the wordsAlone, alive, a bull calf, 40 kg, tag 6112. On the barn sheet or on the phone, which keeps it until there is signal.
Calving · 2041
AloneEasyHardVet
AliveDeadBullHeifer
weight40 kg
ear tag6112

Drawn. Real capture to follow: the calving form on the phone.

Where it goes: the calf gets its own card (mother 2041, sire Kip, 40 kg); her card counts another calving on her own, in the first three weeks. Reporting: the calving for EPJ within 25 days, the calf's tagging for PRIA within 20, both laid out ready to file.

The same weekReady to fileReports shows what each register is owed and by when. You file it in e-PRIA and Liisu; Kari sends nothing on its own.
Reportswhat is owed
PRIABirth of 6112Mother 2041 · 02.04 · bull calf · due by 22.04Download the file and the steps
EPJCalving of 2041Alone · alive · 40 kg · due by 27.04Download the file

Afterwards: you confirm the day you filed; when the register shows it back, the record is marked filed. Until then it says entered.

19 OctoberThe weaning weighingThe calf 312 kg, the cow 664. Kari works out 1.36 kg a day, against the bull calves born the same spring, and 47 % of his mother's weight.

6112 against the bull calves born the same spring

0100200300kgBorn 02.04200 days 19.10turnout 12.05Calves of the same age: 39 kg on day 0Calves of the same age: 82 kg on day 40Calves of the same age: 280 kg on day 2006112: 40 kg on day 06112: 88 kg on day 406112: 312 kg on day 2006112 · 312 kg1.36 kg a daySame age · 280 kg1.20 kg a day

Where it goes: his 200-day weight onto his card and into EPJ's weighing file; the 47 % onto her card as this season's answer to "a heavy calf for her size".

NovemberDoes she stay?After the pregnancy check you walk through the cows one by one. Every answer about 2041 comes from what was recorded this year and the years before.
2041 Maasikaseason 2026
20416 years · 5 calvesstays
Weaned a calf every year5 of 5
In calf early againvet 5 on 12.11
Calved on her own5 of 5
Calm1 to 2
Soundudder 2 · feet 1
Heavy calf for her size47 %, herd middle 45 %
The six questions Kari asks of every cow
  1. 1A calf every yearIn calf, calved, weaned a calf. Every season.
  2. 2Early in the seasonIn the first three weeks, so the calf is old at weaning.
  3. 3On her ownNo help at calving; the calf up and sucking without you.
  4. 4A heavy calf for her sizeThe calf at 200 days against her own weight.
  5. 5CalmScored in the crush at every handling, 1 to 6.
  6. 6SoundUdder, teats, feet and legs, 1 to 5.

The targets are the farm's to set. A cow that fails one gets a mark with the reason; the decision is made at the crush.

What Kari says: she stays, above the herd's middle; keep her heifer calves. For the herd: kg weaned per cow put to the bull, this season against last.

The herd in the example is made up. Screens are drawn from Kari's own; real captures from the demo farm follow.

On the farm

I am Stefan Gernert, an agronomist. I run an Angus and Hereford suckler herd at Niiduveis in Lääne-Virumaa, and have worked with suckler herds in Sweden, Estonia and further afield for years.

Kari is years in the making: notes and a FileMaker herd file on my own cows, after one herd program after another proved good at storing and bad at telling me anything. In 2026 I rebuilt it from the ground up, writing the code with AI tools. Every sheet and screen is used on my own herd first.

Kari is made by Herdloop: Estonia first, then Latvia and Lithuania. I am looking for a co-founder.

Niiduveis OÜ, Liigvalla, Lääne-Virumaa
Angus and Hereford, spring calving
Rotational grazing, 11 paddocks
In performance recording with EPJ
Kari: years of notes and FileMaker,
rebuilt as an app in 2026

photo of the herd to follow

The winter test

This winter a small number of Estonian beef suckler farms run Kari free on their own herds, from the housing weighing to the spring weighings. A guided run-through on a demo herd shows each job first; then I bring your herd in from Liisu with you and set up the first crush day.

Can I keep working on paper?

Yes. Every job prints as an A4 sheet with the same rows as the screen. Photograph it afterwards, or type it in.

Does it replace Liisu or e-PRIA?

No. EPJ keeps the official herd book and PRIA the register. Kari keeps the farm's own records and decisions. You file.

How do my animals get in?

One bookmark run in your own Liisu session reads your animals, their parents, every calving and weighing EPJ has. Kari never sees your Smart-ID.

What does it cost?

Nothing this winter. The test farms use it free, and we set the price together with them before the test ends.

Can I take my data out?

Yes. The records are yours. In Your data you download everything as one file, or delete the farm from Kari.

Built on a working Estonian herd.

Join the free winter test and help shape Kari. Write a few lines: how many cows, how you keep records today. I reply myself.

stefan@herdloop.com

Ask to join the test