Learn how to recognize mites and lice in Kunekune pigs, where to check, how infestations spread, treatment and withdrawal cautions, quarantine, prevention, and when to call a vet.
Quick answer: mites and lice can both make a Kunekune scratch, rub, lose hair, and develop irritated or crusty skin, but they are different parasites and should not be treated from appearance alone. Sarcoptic mange is caused by Sarcoptes scabiei var. suis; the hog louse, Haematopinus suis, is a large sucking louse that can often be seen on the pig. I start by looking closely at the pig, the rest of the group, and the environment, then match treatment to the actual problem rather than repeatedly treating “dry skin” by guesswork. [1] [2]
What Mites and Lice Can Look Like
The signs that get my attention are persistent scratching or rubbing, head shaking, crusty or irritated ears, dandruff-like scurf, a rough coat, thinning hair, red patches, scabs, thickened skin, or several pigs suddenly using fences and posts as scratching stations. A little normal pig scratching is not the same thing as a pig that cannot get comfortable.
Sarcoptic mange lesions often begin around the head and ears and can spread over the body. Itching can be intense. Hog lice are much larger than mites and are commonly found inside or behind the ears, in neck folds, and on the inner legs. Heavy lice infestations can cause severe irritation and, in piglets, anemia. [1] [2]
Where I Check a Kunekune
Kunekunes can hide early skin trouble under a surprisingly thick coat. I do not judge them from ten feet away. I part the hair and look closely around and behind the ears, along the neck and shoulders, down the back, around the belly line and inner legs, near the tail head, and anywhere the pig has been rubbing.
- For lice: look near the skin for visible insects and eggs attached to hair.
- For mites: you may never see the parasite itself, so the pattern of itching, crusting, papules, thickened skin, hair loss, and ear irritation matters more.
- For the herd: look for the same changes in pen mates, littermates, and pigs sharing shelter or bedding.
One of the advantages of knowing your pigs well is noticing the small change: hair on a fence wire, a pig suddenly avoiding touch around an ear, or a littermate rubbing when the others are settled.
Do Not Treat Every Flaky Pig as a Parasite Case
Dry skin, seasonal coat changes, sun or mud irritation, wounds, bacterial or fungal disease, nutritional problems, and other skin disorders can resemble an external-parasite problem. Merck notes that dry, flaky skin is also common in miniature/pet pigs, which is another reason not to equate every flake with mange. [3]
If the itching is intense, lesions are spreading, several pigs are affected, treatment has failed before, or the pig is becoming uncomfortable or unthrifty, I would rather get a veterinarian involved than keep changing products and guessing.
For a broader look at non-parasitic skin problems, see our Kunekune skin problems guide.
How Mites and Lice Spread
Kunekunes are social pigs. They sleep together, share shelters, rub on the same posts, ride in the same trailer, and often have close nose-to-body contact. That makes external parasites a herd-management issue rather than just a problem on one itchy pig.
Sarcoptic mange can spread rapidly by direct contact, including from sow to piglets, and contaminated pens or equipment can also play a role. Hog lice likewise move among pigs, and successful control may require treating the animals and their housing rather than focusing on one individual. [1] [2]
Treatment Needs to Match the Diagnosis
I do not think an article like this should become an internet dosing sheet. The useful part is understanding the treatment logic: identify the likely parasite, consider every exposed pig, follow the swine label, account for age and condition, respect withdrawal times for food animals, and recheck the herd.
Merck lists several compounds used for mange or lice control in swine, but the appropriate product, route, repeat interval, and restrictions depend on the diagnosis and the label. If a drug is used extra-label in a food-producing animal, FDA requirements apply and that use must be under a valid veterinarian-client-patient relationship with residue-avoidance and withdrawal planning. [1] [2] [4]
What I Use at BF Farm
At BF Farm, doramectin (Dectomax) is one of the tools I have used in our parasite-control program when it fits the situation. Dectomax is labeled for swine and includes treatment/control claims for Sarcoptes scabiei var. suis mange mites and Haematopinus suis sucking lice. The current swine label carries a 24-day slaughter withdrawal. [5]
That is a description of a BF Farm management tool, not a blanket instruction for every owner to copy. I still want the pig weighed appropriately, the actual product label in hand, the treatment goal clear, and the veterinarian involved when the diagnosis, age, pregnancy status, food-animal withdrawal, or response to treatment is uncertain.
Piglets, Sows, and New Arrivals Need Extra Attention
Piglets deserve a closer look because a heavy lice burden can contribute to anemia and poor performance, and sarcoptic mange can pass from sow to piglets. A piglet that is restless, rubbing, developing crusts around the ears, losing hair, or falling behind its littermates deserves prompt attention. [1] [2]
New pigs are another obvious entry point. My normal BF Farm practice is to quarantine new pigs for about six weeks before they join the resident herd. During that time I am not only watching for coughing or digestive problems; I am parting the coat, checking the ears and skin, watching scratching, and keeping equipment and chores separated as much as practical. Our Kunekune biosecurity and quarantine guide goes deeper into that process.
Treat the Herd and Environment as Needed
One of the most common mistakes is treating the worst-looking pig and forgetting every pig and surface that shares the same space. Depending on the parasite and treatment plan, control may involve the exposed group plus bedding, pens, crates, trailers, or other contaminated areas. Merck specifically discusses whole-herd/facility approaches for lice and herd-level control for mange. [1] [2]
Good prevention is wonderfully boring: dry bedding, clean sleeping areas, quarantine, routine hands-on observation, and not casually sharing contaminated grooming or handling equipment between groups.
Follow-Up Matters
After treatment, I want to know whether the pig is actually improving: less rubbing, calmer behavior, healing lesions, better coat condition, normal appetite, and no new cases appearing in the group. If the problem returns, I do not assume the answer is simply “give the same thing again.” Reinfestation, an untreated contact, environmental contamination, the wrong diagnosis, or another skin disease may be responsible.
When I Would Call the Veterinarian
I would get veterinary help promptly for severe itching, open or infected sores, heavy crusting, rapid hair loss, weakness, pale piglets, poor growth, fever, a nursing sow or young piglet that is significantly affected, several pigs worsening together, or a problem that returns after treatment. I would also call before using a product when I am uncertain about pig approval, dose, route, withdrawal time, pregnancy safety, or extra-label use.
The main lesson is simple: notice early, confirm what you are dealing with, treat the right pigs with the right product, manage the environment, and recheck. That approach is slower than grabbing the first bottle in the cabinet, but it is much more likely to solve the real problem.
Sources & References
- Merck Veterinary Manual: Mange in Pigs
- Merck Veterinary Manual: Lice in Pigs
- Merck Veterinary Manual: Diseases of Miniature Pet Pigs
- FDA: The Ins and Outs of Extra-Label Drug Use in Animals
- Zoetis: Dectomax Injectable package insert
About the Author
Mark Bengtson has raised Kunekunes since 2011 and uses routine hands-on observation, quarantine, clean housing, and veterinarian-guided treatment decisions as part of BF Farm herd management. Years working for the CDC also gave him opportunities to learn from veterinarians and other specialists, but this article keeps diagnosis and medication decisions tied to veterinary and product-label guidance rather than presenting farm experience as a substitute for either.
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