It produces only mild pruritis in the pig. In the pig, cattle ringworm can present as rings or plaques similar to the rat ringworm. Trichophyton verrucosum, which produces the classic grey plate-like lesions in cattle, can jump to pigs where the two species are kept together, or where pigs are housed in buildings that have contained infected calves previously. It does not spread between animals and is a distinct condition from that seen in man but given the same name.įig 5: Ringworm should not be confused with pityriasis rosea (aka Porcine Juvenile Pustular Psoriasiform Dermatitis Ringworm in growing pigs must be distinguished from Pityriasis rosea - sometimes called false ringworm - which is an inherited, dramatic, non-pruritic but harmless condition of individuals starting at 6-8 weeks and resolving totally by 20 weeks of age (fig 5). Pruritus is more marked and the skin damage that results from the primary infection and the rubbing can precipitate greasy pig disease - an important and harmful bacterial dermatitis.įig 4: Ringworm in growing pigs may have implications for carcass condemnation (Photo courtesy Jill Thomson) Furthermore, its occurrence in outdoor environments means that it is visible to the general public which if noticed may give rise to objections on welfare grounds.ĭisease caused by Microsporum canis in young pigs is usually more ring like and damaging. ![]() It is also unsightly and can be more of a concern to the owner than it appears to be to the pig. The disease can be seen as outbreaks in growers in heavily contaminated conditions (fig 4) including straw yards.įig 2: Mild ringworm in sows can be easily overlooked.įig 3: When more severe, rings can be seenīecause of the general lack of damage done by the fungus the disease in sows is of little economic concern, although can look quite dramatic and concerning. The disease tends to be more common in winter. Careful examination of weaners derived from affected sows may show mild lesions. Ringworm primarily attacks the hair follicles but, in this case, there is rarely hair damage or loss and irritation is minimal. In rare cases it may appear as occasional rings (fig 3). Rather than producing rings of inflammation it produces patches of up to 20cm in diameter usually on the neck, shoulders or back of a brown to orangey colour (figs 1 & 2). Rat ringworm in pigs can easily be mistaken for soil or faecal contamination of the skin. Hedgehogs can also carry the fungus and act as a source of contamination. This is most commonly seen in outdoor and straw yard based sows and is associated with bedding derived from stacks in which rats have nested or simply within an environment heavily contaminated by rats. Trichophyton mentagrophytes - the rat ringworm.This means that the most likely infection will be in baby piglets where cats sleep in creep areas. Microsporum canis - the dog ringworm, which is actually more common in cats - and crosses over to pigs where cats and pigs mix.Trichophyton verrucosum - the cattle ringworm - largely only seen in backyard pigs in contact with calves and particularly relevant to the small pig keeper.To learn more about how and for what purposes Amazon uses personal information (such as Amazon Store order history), please visit our Privacy Notice.Within the UK, three types of ringworm are predominantly seen in pigs ![]() You can change your choices at any time by visiting Cookie Preferences, as described in the Cookie Notice. Click ‘Customise Cookies’ to decline these cookies, make more detailed choices, or learn more. Third parties use cookies for their purposes of displaying and measuring personalised ads, generating audience insights, and developing and improving products. This includes using first- and third-party cookies, which store or access standard device information such as a unique identifier. If you agree, we’ll also use cookies to complement your shopping experience across the Amazon stores as described in our Cookie Notice. We also use these cookies to understand how customers use our services (for example, by measuring site visits) so we can make improvements. ![]() We use cookies and similar tools that are necessary to enable you to make purchases, to enhance your shopping experiences and to provide our services, as detailed in our Cookie Notice.
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