Common Fresh Cow Diseases and Early Warning Signs

The weeks right after calving are when most cows get sick, and the first signs are usually small. Catching a slow cow early gives you and your vet the most options.

Key points

Check every fresh cow, every day, and write down what you find.
Poor appetite, a flat attitude and less cud chewing are early signs worth acting on.
Fresh cow diseases are connected, so one problem raises the risk of the next.
Prevention begins in the dry and close-up periods.
Follow withdrawal times exactly for any treated cow.

Why the fresh period is so risky

A cow goes from carrying a calf and eating a dry-cow ration to making a large volume of milk in a matter of days. Her feed intake lags behind her energy and calcium needs, and her immune system is under strain at the same time. That combination is why metabolic problems, uterine infections and udder trouble cluster in the fresh pen.

Most herds define the fresh period as roughly the first few weeks of lactation. Whatever window you use, the goal is the same: look at every cow, every day, and write down what you see.

The diseases you will see most often

Learn the family of problems rather than a single disease, because they often show up together and feed into each other. A cow with low blood calcium may eat poorly, which raises the chance of ketosis and a displaced abomasum, and a cow that is slow to pass her placenta is more likely to develop a uterine infection.

Milk fever, or low blood calcium
Ketosis, an energy shortfall
Displaced abomasum, a twisted or shifted fourth stomach
Retained placenta and metritis, problems of the uterus
Clinical mastitis, infection in one or more quarters
Lameness that flares up in early lactation

Early warning signs at the feed bunk

The feed bunk tells you the most. A fresh cow that walks up late, picks at her ration or leaves the bunk early deserves a closer look. Compare her to her pen mates, since a cow that is eating less than the others is often the first clue.

Watch for sorting, slow chewing and a reduced number of cows lying down chewing cud. Fill of the left flank, the area behind the last rib, is worth checking too. A hollow look can point to low intake.

Slow to come to the feed bunk
Dull eyes, drooped ears or a flat attitude
Less cud chewing than her pen mates
Hollow or sunken left flank
Sudden drop in milk compared with her recent days

What to check on a fresh cow each day

A short routine works better than a long one you skip. Many farms use a simple fresh cow check done at the same time each day by the same trained person, with findings written on a card or in herd software.

Take her temperature if your protocol calls for it, check the vaginal discharge for color and smell, look at manure consistency, and strip each quarter to check for clots or changes in milk. Note appetite and rumen fill. Record the date and the person who looked.

Temperature, if part of your vet's protocol
Appetite and rumen fill
Vaginal discharge: amount, color, smell
Manure: too loose, too dry or unusual
Milk from each quarter, and udder swelling or heat
Gait and how easily she rises

Prevention starts before calving

Most fresh cow disease is shaped in the dry period and close-up pen. Body condition at calving, the close-up diet, bunk space, clean dry bedding and low stress around calving all matter. Aim for cows that come in neither too thin nor too fat. Body condition score runs on a one-to-five scale, and your nutritionist can tell you the target that fits your herd.

Calving area hygiene and calm, patient handling of cows and calves also reduce uterine and udder problems. Work with your nutritionist on the dry cow ration and with your vet on the fresh cow protocol, rather than changing one without the other.

Common mistakes

The most common error is waiting. A cow that looks only slightly off today can be much sicker tomorrow. The second is treating by guesswork or leftover supplies instead of calling the vet for a diagnosis and a plan.

Any animal given medication must be kept out of the tank and the food chain for the withdrawal time on the label or set by your veterinarian. Follow it exactly and mark treated cows clearly so every milker knows.

Skipping the daily check on busy days
Not recording what you saw
Moving a sick cow back to the pen too soon
Mixing up treated and untreated cows
Ignoring a small drop in feed intake

When to get help: Call your veterinarian the same day for any fresh cow that stops eating, goes down, has a fever, a foul discharge or a swollen painful udder. Ask your nutritionist to review the close-up ration if several cows in a group show the same problems.

Sources and further reading

Organization homepages are linked so you can search them for current guidance on this topic.

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