Calf care: the first 30 days

A calf's first 30 days strongly affect both the animal's later performance and your losses in the barn. The jobs to be done in this period are not complicated; what makes the difference is whether they are done on time and to the same routine every time. Below is a sequence you can follow on the farm from the moment of calving to day 30, the mistakes most often made, and the signs that should send you to a veterinarian.

The first half hour after calving

As soon as the calf is born, look at two things: is she breathing, and is she drying? Wipe the mucus from around the nose and mouth with a clean cloth; if need be, lay the calf on her chest and rub her back briskly, which both stimulates breathing and speeds up circulation. The dam licking the calf is the best way of drying her, but in cold weather, or if the dam takes no interest, dry her yourself with dry stalks, straw or a clean sack. A wet calf chills quickly even when the weather is warm.

The cleanliness of the calving pen matters at this stage at least as much as drying. In those first minutes the calf picks up germs from the floor she lies on. A dry, separate calving pen whose bedding is changed after every calving markedly lowers the risk of scours later.

1. The first hours: colostrum is vital

The first hours after calving are the most critical period for the calf's immunity. Colostrum contains the antibodies that protect her against disease. Absorption of those antibodies through the gut is highest immediately after birth; it falls off gradually as the hours pass and largely stops within the first day. So the rule is simple: do not wait.

• The first feed is given at the earliest opportunity after birth; every hour that passes lowers the amount of antibody absorbed.
• Feeds are repeated within the first day; set the amount needed for the size of the calf, and the pattern of feeds, with your veterinarian.
• The earlier and the more adequate it is, the stronger the immunity.

How to do it: Milk the cow at the first opportunity after calving and collect the colostrum separately in a clean, lidded container. The milk is warmed before it is given to the calf; it should be close to body temperature, neither cold nor scalding. If the calf sucks on her own, a teated bucket or a bottle is the most natural way. If she will not suck, feeding by tube (an oesophageal tube) can be used; but if you have never done this before, have a veterinarian or someone experienced do it the first time — a tube passed wrongly can go into the calf's lungs.

Quality and storage: Colostrum that is watery, pale and thin is usually weak; thick, yellowish colostrum is better. Judging by eye like this gives only a rough idea and is no substitute for measurement; instruments that measure quality, and a vet's assessment, are more reliable. Colostrum can be inadequate in cows with mastitis, cows that leaked milk from the udder before calving, or cows whose dry period was very short. It is therefore wise always to keep a reserve in the herd: good colostrum you have to spare can be frozen in small portions and thawed slowly in warm water when it is needed. Dropping it into boiling water or heating it directly on the stove destroys the antibodies.

Hygiene: Buckets, teats and tubes must be washed and dried after every feed. Colostrum is a very nourishing medium for germs too; good colostrum given in a dirty bucket does not count as good colostrum.

2. Navel hygiene

Immediately after birth the navel cord should be disinfected with a suitable antiseptic recommended by your veterinarian; this helps prevent navel infections (omphalitis).

How to do it: Do not pull the cord or try to tear it off. Putting the antiseptic in a small cup and dipping the navel into it is more effective than dripping it on; the whole cord must be wetted. Repeating it on the day of birth and checking the navel once more the next day is a good habit. If the navel is swollen, hot, painful when you press it, or there is foul-smelling discharge, this will not clear on its own; show it to a veterinarian. An infection entering through the navel can travel to the joints and internal organs, and the calf shows it by going lame or growing dull.

3. Housing: dry, warm, out of the draught

• A newborn calf feels cold at temperatures where grown animals are comfortable; her threshold for cold stress is much higher in the first weeks.
• Clean, dry stalks or straw are recommended as bedding; in cold weather it must be deep enough for the calf to bury herself in.
• The calf should be in an individual, clean, airy pen, protected from damp and draughts.

How to check it on the farm: The kneeling test is simple but it works: kneel on the bedding and wait a few seconds; if your trousers get wet, the bedding is wet for the calf too. The second test is whether the calf's legs disappear into the straw where she lies; in the cold a calf wants bedding deep enough to bury herself in. The third is to crouch down to the level at which she lies and feel the draught — a barn that is comfortable at human height can be draughty for a calf lying on the floor.

In winter the aim is not to heat the barn but to keep the calf dry and out of the wind. Trying to gain warmth by shutting off ventilation raises ammonia and damp, and that means respiratory disease outright. In summer the real issues are shade and cool, clean water. If you use calf hutches or individual pens, emptying, cleaning and resting them after every calf breaks the chain of infection.

4. The feeding programme

• Week 1: colostrum → transition milk → the move to normal milk.
• From week 2: milk according to your farm's feeding programme + calf starter feed + clean water.
• Offering water and starter feed early speeds up rumen development.

The daily amount of milk and the number of feeds change with the size of the calf, the weather, the milk or milk replacer used and the farm's programme. Rather than applying one fixed number of litres to every calf, set the feeding programme for your own herd with your veterinarian; and do not forget that energy needs rise in cold weather.

Two rules never change at milk feeds: the same hour and the same temperature. Milk given at the same hours morning and evening is digested better than milk given early one day and late the next. Warming the milk close to body temperature every time prevents the digestive upsets that cold milk causes. If you use milk replacer, follow the mixing rate on the packet exactly; mixing it thicker so it will "do more good" is among the common causes of scours.

Starter feed and water are the two things given late in most barns. In the first days the calf will only sniff at feed, but if it is not put in front of her, her rumen does not develop. Put a handful of fresh feed out every day, throw away what is left and clean the container — a calf will not touch stale feed. Water must be constantly in front of her in a separate container from the milk; thinking that the water in the milk is enough is wrong, because dry feed intake depends on water.

Period	Milk / colostrum	What goes alongside	What to watch
Day 0–1	Colostrum, without delay and in repeated feeds	—	Early and adequate feeding; a clean container
Day 2–7	Transition milk, then normal milk	Clean water, a small amount of starter feed in front of her	The same hour, warm milk, a daily check of the manure
Week 2–4	Milk according to the programme, usually in split feeds	Starter feed + water + good quality hay	Is feed intake rising, is she gaining weight
Day 30 onwards	Continue according to the programme	Feed intake should rise from day to day	The weaning plan is made by looking at feed intake

5. Health monitoring and early warning

The first 30 days carry a risk of scours and respiratory disease. Watch appetite and the sucking reflex, manure consistency, and nasal discharge, coughing or dullness every day. If anything looks suspicious, consult a vet without losing time.

A daily 30-second look: Watch the calf while you feed her. A healthy calf runs to the bucket, finishes the milk quickly, holds her ears up and has a bright eye. The first sign of illness is almost always a fall in appetite and getting up later than the others. On a farm where someone knows how to take a temperature, checking a calf that looks suspicious in the morning catches the illness a day earlier.

Recognising fluid loss (dehydration): Pinch a fold of skin on the neck and let go; if the skin does not spring back at once but stands up, the calf has lost fluid. Sunken eyes, a cold and sticky mouth and difficulty getting up show an advanced stage. This picture is an emergency: whether fluid and electrolyte support by mouth will be enough, which product to give and how often, and whether intravenous fluid is needed, are decided by the veterinarian who sees the animal. Rather than starting treatment on your own, tell the vet.

Which signs call for a veterinarian without delay?

• If the calf cannot get up, will not suck, or refuses the fluid offered.
• If the fold of skin does not spring back and the eyes are sunken.
• If the scours are bloody, very foul-smelling, or last longer than a day.
• If there is fast, laboured breathing, a constant cough, yellow-green nasal discharge or drooping ears.
• If the navel is swollen, hot or discharging, or the calf is lame with a swollen joint.
• If the belly is markedly swollen and the calf is restless.
• If she got no colostrum at all after birth, or got it late (do not wait and see).

This article deliberately gives no medicine names, doses or treatment instructions. Every treatment and preventive programme for a calf is set by the veterinarian who sees the animal.

The mistakes most often made on the farm

1. Saying "the dam will suckle her anyway". If you have not seen with your own eyes that the calf found the teat, she has not sucked. Calves born weak may try for hours and get nothing.
2. Delaying colostrum. Leaving a calf born in the evening until morning is the most expensive mistake there is; the antibody absorption you lose does not come back.
3. A dirty bucket and teat. The cleanest equipment in the barn should be the calf bucket.
4. Mixing milk replacer by eye. The rate and the temperature must be the same at every feed.
5. Giving water late. Without water, feed intake does not rise and the rumen does not develop.
6. Spending the winter on wet bedding. Damp and draught wear a calf down more than dry cold does.
7. Keeping a sick calf among the healthy ones. Scours are contagious; separate a suspect calf, see to her last, then clean your hands and your boots.
8. Not keeping records. A farm that cannot answer "when was that calf born, how many days did she scour?" repeats the same mistake every year.

6. Vaccination, ear tags and official registration

Tagging the calf, recording the birth and starting the vaccination calendar are the administrative but critical jobs of the first month. Keeping these records in order is necessary both for official requirements and for herd management.

In Turkiye, tagging cattle and registering them in the official database is compulsory; birth notification, obtaining tags and passport procedures follow set procedures. Benefiting from calf support payments also depends on these records being complete and correct. Because notification periods, tag supply and support conditions can be updated from period to period, contact your provincial or district directorate of agriculture and forestry and your veterinarian for the exact periods and current conditions. The vaccination calendar likewise changes with the region, the herd's history and the dam's vaccination status; rather than applying a standard list found online, draw up a calendar for your own herd with your vet and write what is done regularly on the vaccination and treatment tracking side.

What good do records do here?

Records are not something that makes a calf better; but they let you see which calf fell ill when, which cow's calves keep running into trouble, and in which pen the scours keep coming back. Once the date of birth, the hour at which colostrum was given, the days of illness and what was done are written down, you can look at the table at the end of a season and reach a conclusion such as "the problem shows up in the winter months, and always in the same pen". That is a decision taken from your own data rather than from guesswork.

Records also make official business and selling easier: birth notification, tag and passport details and vaccinations all sit together. The same book lets you see later how the animal grew and what her breeding history is; for animal-level history cow tracking makes it easier, and on the fertility side the fertility report does.

The first 30 days checklist

• Is the calving pen dry and clean, and is the bedding changed after every calving?
• Has the calf been dried, and is her breathing easy?
• Was colostrum given without delay and in sufficient amount, by whom, and at what hour?
• Was the navel disinfected, and checked again the next day?
• Are the bucket, teat and containers washed and dried after every feed?
• Are milk feeds given at the same hour and warm?
• Are clean water and fresh starter feed constantly in front of her?
• Is the bedding dry (the kneeling test), and is there a draught?
• Are appetite, manure, nose and breathing watched every day?
• Has a sick calf been separated, and moved to the end of the care order?
• Have the tag, the birth record and what was done been written down?
• On day 30, was she weighed, or her development at least assessed by eye?

A calf getting through her 30 days without trouble also depends on the dam recovering properly after calving. If you want to take monitoring before and after calving as one whole, keep the calving tracking side in the same book.

Record the calf the moment she is born

With Alprivo Herd Management you can record a calf on the day she is born and follow vaccination and check tasks with reminders, keeping every note in one place, from the hour colostrum was given to the days she was ill.