Most owners record events. Vets need baselines. That is the whole gap.
An event log says "wormed in March, farrier in April." Useful for planning, almost useless in an emergency. What a vet needs at three in the morning is what is normal for this horse, so that today's number means something.
A temperature reading tells you very little on its own. The same reading, next to six months of that horse's own readings, tells you a great deal.
The Baseline Block
This goes at the top of the page and it is the part almost nobody has.
Take vital signs on a healthy, resting horse, several separate times, and write down what you get. Not once. Several times, on different days, at similar times, when nothing is wrong.
Published normal ranges are population ranges. Individual horses sit at different points inside them, and some sit slightly outside. A horse whose resting temperature always runs at the low end looks fine at a reading that would be a mild fever for a different horse, and looks normal at a reading that is actually elevated for them.
You cannot establish this during an emergency. By definition the horse is not at baseline then. This is quiet-Sunday work, and it is the single most valuable thing in the whole log.
Record, at minimum, on a healthy day:
- Temperature, pulse and respiration, taken at rest
- Gut sounds in all four quadrants, and what they sound like normally
- Capillary refill and gum color
- Digital pulse, and how strong it normally feels
- Body condition and weight, however you measure it
- What their manure normally looks like, and roughly how often
Take these on the same horse more than once and you will see how much they move day to day, which is itself the information you need. A number that varies by very little is a number worth taking seriously when it moves.
Gut sounds are the one on that list most people are unsure about. Listen in all four quadrants, note what you hear when the horse is well, and record it in words that will mean something to you later rather than trying to grade it.
The Running Log
Below the baseline, a simple chronological list. Date first, then what happened.
Write product names, not categories. "Wormed" is not a record. The product name, the active ingredient and the dose given are a record, and they are what a vet needs to know whether resistance is a factor and what to reach for next.
The same applies to everything given. Supplements, medications, topical treatments, and anything the horse got that was not their normal feed.
Record the things that are not treatments. These matter more than people expect:
- Feed changes, including a new batch of the same feed
- Hay source changes
- Turnout changes, new field, new companions
- Travel
- Workload changes
- Weather events that changed the routine
A great many problems trace back to a change, and the change is usually two or three weeks earlier than anyone remembers by the time the problem appears.
Farrier and dental dates, with who did the work and anything they noted.
Vaccination records, with product and batch number where the paperwork gives you one.
What Emergencies Actually Ask
This is why the log exists, and it is worth knowing the questions in advance.
When you call about a horse that is off, you will be asked some version of:
- When did they last eat, and how much?
- When did you last see droppings, and what did they look like?
- What is the temperature now? And, immediately after, what is normal for this horse?
- When did you last see them completely normal?
- What has changed recently?
- What have they had, and when?
Every one of those is answerable in seconds from a log and unanswerable from memory under stress. The second half of the temperature question is the one that catches people out, and it is the one only a baseline can answer.
Keep It Where You Are, Not Where It Belongs
The best-designed record system fails if it lives in a folder in the house and the horse is in a field.
A phone note works and it is with you. So does a small notebook in the tack room, or a laminated card on the stall door for the baseline numbers with the detail kept elsewhere.
Whatever you choose, the baseline block should be readable by someone who is not you. If a barn manager, a friend or a vet arrives before you do, those numbers should be findable without a password.
One page per horse. Combined logs across several horses become unusable at exactly the moment you need them.
What This Log Is Not
It is not a diagnosis, and it does not replace a call. A good log makes a vet faster and better informed. It does not make you the vet, and a horse showing signs of distress needs a professional regardless of what the numbers say.
It is not a reason to delay. If something looks wrong, call, and read the log to them while you wait. Do not spend twenty minutes assembling a complete picture before picking up the phone.
When to Start One
With a new horse, on day one. The first weeks are when you have the least idea what normal looks like for this animal, and they are also when you are watching most closely, which makes them the ideal time to establish it. That period has its own guide in the first two weeks with a new horse.
With a horse you have had for years, today. A baseline established this month is infinitely more useful than one you meant to take in 2024.
Before a purchase, ask whether one exists. A seller who can produce a real health history is telling you something, and its absence is worth asking about during a pre-purchase exam.
It Also Pays For Itself
Two ways, neither of them the reason to do it, but both real.
Insurance claims turn on documentation. A pre-existing condition argument is much harder to make against a clear record, and whether cover is worth carrying at all is discussed in is horse insurance worth it.
Resale. A complete health history is one of the few things that genuinely reassures a careful buyer, and careful buyers are the ones you want.
The Short Version
- Baselines matter more than events. Take vitals on a healthy horse, several times, and write them down.
- You cannot establish a baseline during an emergency. Do it on a quiet day.
- Record product names and doses, not categories.
- Record changes, feed, field, companions, workload. Problems usually trace back to one.
- Keep it where you are and where someone else can read it.
- One page per horse.
- It supports the vet, it does not replace them. Call first, read from the log while you wait.