10 Common Pig Diseases in Uganda and How to Prevent Them
Pig farming is one of the fastest-growing livestock enterprises in Uganda, providing farmers with income, food security, and employment. However, pig diseases in Uganda remain one of the biggest challenges affecting productivity and profitability. Diseases can cause slow growth, poor reproduction, high mortality, increased veterinary costs, and major financial losses.
Some diseases can be prevented through proper housing, hygiene, vaccination where applicable, good nutrition, parasite control, and strong farm biosecurity. African swine fever (ASF), in particular, is a major threat to pig farmers because it can cause very high mortality and there is currently no effective treatment.
1. African swine fever
this is one of the most serious diseases affecting pig production in Uganda. It is a highly contagious viral disease affecting domestic and wild pigs. In severe outbreaks, mortality can approach 100%.
Common signs
High fever
Loss of appetite
Weakness and depression
Red or darkened skin
Vomiting or diarrhea
Difficulty breathing
Sudden death
How to prevent ASF
There is no reliable treatment for ASF, so prevention and biosecurity are critical. Farmers should avoid introducing pigs from unknown sources, restrict visitors, disinfect equipment and footwear, isolate newly purchased pigs, and avoid feeding pigs untreated kitchen waste containing meat.
Farmers should also report suspected outbreaks to veterinary authorities and avoid moving sick pigs from one location to another.
2. Swine Dysentery
Swine dysentery is an infectious intestinal disease that commonly causes diarrhea and poor growth. It can spread rapidly where pens are dirty and hygiene is poor.
Signs
Persistent diarrhea
Blood or mucus in feces
Loss of weight
Poor growth
Reduced appetite
Prevention
Maintain clean pens, provide safe drinking water, avoid overcrowding, and practice good manure management. Any pig showing persistent diarrhea should be examined by a qualified veterinarian before treatment is started.
3. Piglet Diarrhea
Diarrhea is particularly dangerous in young piglets because it can quickly lead to dehydration, weakness, poor growth, and death. Uganda’s pig production systems commonly report diarrhea and other health problems among piglets.
Common causes include:
Poor hygiene
Bacterial infections
Parasites
Poor nutrition
Contaminated water
Sudden feed changes
Prevention
Keep farrowing areas clean and dry, ensure piglets receive adequate colostrum soon after birth, provide clean drinking water, and maintain proper nutrition. Farmers should seek veterinary advice when diarrhea is severe or persistent.
4. Mange
Mange is caused by mites that live in or on the skin. It can spread quickly when infected pigs have close contact with healthy pigs.
Signs of mange
Intense scratching
Hair loss
Thickened or crusty skin
Redness and irritation
Poor growth
Prevention
Regularly inspect pigs for skin problems. Maintain clean housing, isolate affected animals, and use veterinary-approved treatments according to professional advice. Avoid using inappropriate substances such as used engine oil on pigs.
5. Internal Worm Infestations
Internal parasites such as roundworms and other gastrointestinal worms can reduce feed efficiency, growth, and overall productivity. Parasites are among the health challenges reported in smallholder pig production in Uganda.
Signs
Poor growth
Weight loss
Diarrhea
Rough hair coat
Poor body condition
Reduced productivity
Prevention
Develop a strategic deworming program with veterinary guidance. Keep pens clean, regularly remove manure, prevent contamination of feed and water, and avoid overcrowding.
Do not deworm pigs randomly or repeatedly with the same medicine without professional guidance, as this can contribute to treatment failure and resistance.
6. Respiratory Diseases
Respiratory diseases can affect pigs of different ages, particularly where housing is poorly ventilated, overcrowded, dusty, or damp.
Signs
Coughing
Sneezing
Difficulty breathing
Nasal discharge
Poor growth
Reduced appetite
Prevention
Provide well-ventilated pig houses without excessive drafts. Reduce overcrowding, maintain good hygiene, and isolate pigs showing respiratory symptoms.
Because several diseases can produce similar respiratory signs, farmers should seek veterinary diagnosis instead of assuming that every cough requires the same medicine.
7. Salmonellosis
Salmonellosis is a bacterial disease that can cause digestive problems, fever, weakness, and diarrhea. It can be particularly serious in young or stressed pigs.
Prevention
Provide clean feed and water, maintain good sanitation, control rodents and other potential sources of contamination, and avoid overcrowding.
Good farm hygiene is an important part of reducing the spread of bacterial infections.
8. Coccidiosis
Coccidiosis is a parasitic disease that can be particularly problematic in young piglets. It can interfere with intestinal function and contribute to diarrhea and poor growth.
Signs
Diarrhea
Dehydration
Poor weight gain
Weakness
Reduced performance
Prevention
Clean and disinfect farrowing facilities, keep floors dry, prevent fecal contamination of feed and water, and maintain good hygiene around young piglets.
Veterinary diagnosis is recommended because diarrhea can have many different causes.
9. Erysipelas
Erysipelas is a bacterial disease that can cause fever, weakness, skin lesions, arthritis, and reproductive problems. Depending on the local veterinary program and disease risks, vaccination may form part of prevention.
Prevention
Maintain good hygiene and reduce stress. Where vaccination is recommended, farmers should follow a vaccination schedule developed with a veterinarian and use only approved vaccines.
10. Foot-and-Mouth Disease (FMD)
Although pigs are not the only animals affected by foot-and-mouth disease, they can become infected and may play an important role in disease transmission. FMD can cause fever and lesions on the feet and mouth, making movement and feeding difficult.
Prevention
Control the movement of pigs, avoid contact with potentially infected livestock, maintain farm biosecurity, and follow official veterinary disease-control requirements during outbreaks.
How to Prevent Pig Diseases on Your Farm
Disease prevention should be part of everyday pig farming rather than something farmers do only after pigs become sick.
1. Practice strict biosecurity
Limit unnecessary visitors, disinfect footwear and equipment, control movement of pigs, and prevent contact with pigs from unknown sources. Biosecurity is especially important for preventing ASF.
2. Maintain clean pig houses
Remove manure regularly and keep pens dry and well ventilated. Proper housing, hygiene, nutrition, and water supply are key components of pig disease prevention in Uganda.
3. Quarantine new pigs
Newly purchased pigs should not immediately be mixed with the existing herd. Keep them separate and monitor them for signs of disease before introducing them to other animals.
4. Provide quality feed and clean water
Good nutrition strengthens growth and supports overall herd health. Ensure feed is stored properly and drinking water is clean and readily available.
5. Follow a veterinary health program
Work with a qualified veterinarian or animal health professional to establish appropriate vaccination, parasite-control, treatment, and monitoring programs for your farm.
6. Isolate sick pigs
Immediately separate pigs showing unusual signs such as fever, diarrhea, coughing, skin lesions, severe weakness, or sudden loss of appetite. This can help reduce disease transmission.
7. Keep good farm records
Record births, deaths, treatments, vaccinations, deworming, feed consumption, and disease cases. Good records help farmers identify recurring health problems and make better management decisions.
Protect Your Pigs and Protect Your Investment
Successful pig farming in Uganda requires more than good breeds and quality feed. Disease prevention is one of the foundations of a profitable piggery. Research on Ugandan smallholder pig farms has identified disease burden, including ASF and parasites, alongside housing, feeding, and veterinary-service challenges as important constraints to production.
At Aaron Vet Farms Ltd, we encourage farmers to focus on prevention, early detection, proper farm hygiene, responsible veterinary care, and strong biosecurity. Remember that not every disease should be treated with antibiotics, and farmers should avoid self-medicating pigs without professional diagnosis.
If you notice sudden deaths, severe diarrhea, high fever, unusual bleeding, or multiple pigs becoming sick at the same time, contact a qualified veterinarian or the relevant veterinary authorities immediately, particularly when African swine fever is suspected.
Healthy pigs mean better growth, better reproduction, lower losses, and a more profitable pig farming business.