Diarrhoea in piglets is one of the most feared problems in pig farming. It strikes fast, spreads quickly and can turn a healthy litter into a life-threatening situation within hours. Farmers who have experienced it know how suddenly piglets can shift from active, lively feeders to weak, cold, dehydrated and dangerously thin. Because diarrhoea is one of the leading causes of piglet mortality worldwide, speed and precision are everything.
The good news is that most cases can be controlled early, before losses occur if the farmer understands what to do immediately. This guide provides a clear, practical, and farmer-friendly approach that ensures you respond fast, confidently and effectively.
Understanding why diarrhoea is dangerous
The biggest danger is not the diarrhoea itself but the severe dehydration and nutrient loss that follow. Piglets have tiny bodies, very little energy reserve and a high metabolic rate. This means they can lose strength rapidly when water and nutrients are lost through loose stools. Without quick intervention, they collapse, weaken and die.
1. Rehydrate Immediately – The first and most crucial step
Your first response must always be rehydration.
Piglets suffering diarrhoea lose water and electrolytes at a high rate. Restoring these quickly determines whether they recover or deteriorate.
How to rehydrate correctly
- Use oral rehydration solutions (ORS), whether commercial or homemade.
- A simple emergency formula can be made using warm water, a pinch of salt and a little glucose or sugar.
- Give it in small, frequent portions every 30–60 minutes depending on severity.
- Use a syringe or small bottle for weak piglets.
A well-hydrated piglet has a significantly higher chance of surviving and returning to normal feeding.
2. Ensure piglets are getting enough milk
Milk intake is directly linked to immunity and gut health. When diarrhoea makes piglets weak, they may stop suckling and once they stop, the condition worsens rapidly.
Steps to support milk intake
- Assist weak piglets to latch onto the udder, especially the front teats which produce more milk.
- Provide warm milk replacer or glucose water for piglets unable to suckle.
- Ensure piglets get colostrum within the first hours of life; this natural immunity booster protects against digestive infections and supports immunity for the first 72 hours.
Poor milk intake means diarrhoea will continue regardless of treatment.
3. Improve Pen conditions immediately
Environment plays a major role in piglet health. A cold or dirty pen can trigger and worsen diarrhoea faster than many farmers realise.
Create the right conditions
- Keep the pen warm especially for newborns.
- Ensure bedding is dry and replace any wet material.
- Avoid drafts, cold stress weakens immunity and slows digestion.
- Never leave wash water or damp floors in the farrowing area.
Even mild chill can turn a healthy piglet into a sick one within hours.
4. Choose the right medication based on the cause
Piglet diarrhoea has multiple causes and each requires a specific treatment. Not all cases need antibiotics and using the wrong medication wastes valuable time.
Common signs and their meaning
- Yellow watery stool in newborns → often E. coli infection
- Responds well to anti-scour medication plus rehydration.
- Whitish or grey stool→ often caused by poor digestion or low milk intake
- Focus on warmth and better feeding.
- Bloody stool → commonly coccidiosis,Requires immediate anti-coccidial medication.
- Greenish stool → infection or feed irritation
- Treat with rehydration, sanitation, and appropriate medication.
If diarrhoea lasts more than 24 hours, treat it as a medical emergency.
5. Examine the Sow — She is often the hidden cause
Many farmers focus only on the piglets and forget to check the sow—but her health directly affects the entire litter.
Check the Sow for:
- Mastitis(painful, inflamed udder)
- Fever
- Low or no milk production
- Swollen or infected teats
If milk flow is poor, piglets weaken quickly, fail to suckle and diarrhoea follows. A healthy sow is the strongest defence against piglet illness.
6. Long-Term Prevention — Your Best Defence
While fast action saves lives, strong prevention ensures healthier litters and fewer diarrhoea outbreaks.
Best Practices
- Deworm the sow before breeding and late in pregnancy.
- Keep the farrowing area clean, warm and dry.
- Give piglets iron injections early.
- Clean the sow’s teats before suckling.
- Administer antibacterial treatment on time.
- Maintain high hygiene standards at all stages.
- Keep feeding and water equipment clean.
Poor hygiene guarantees diarrhoea will keep returning, no matter how many medicines you use.
Piglet diarrhoea is serious, but it doesn’t have to lead to losses. When farmers react they can save most affected piglets.
Strong prevention ensures future litters remain healthy and productive. In pig farming, quick decisions and good management are the true lifesavers.
Author: Moureen Koech
Moureen Koech is a passionate Digital Journalist, an adept Agribusiness Writer with a keen eye for news and an impactful story-teller,whose stories provide key value to Agripreneurs and stakeholders in the Agricultural sector
