{"id":85892,"date":"2025-07-02T13:16:49","date_gmt":"2025-07-02T06:16:49","guid":{"rendered":"https:\/\/www.medion.co.id\/?p=85892"},"modified":"2025-07-14T11:03:23","modified_gmt":"2025-07-14T04:03:23","slug":"penyakit-kurap-atau-favus-pada-ayam","status":"publish","type":"post","link":"https:\/\/www.medion.co.id\/en\/info-medion\/ringworm-or-favus-disease-in-chickens\/","title":{"rendered":"Ringworm or Favus Disease in Chickens"},"content":{"rendered":"
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Ringworm or Favus<\/em> Disease in Chickens<\/figcaption><\/figure>\n\n\n\n

ChatGPT said:\n\nRingworm or Favus<\/em> disease (Avian ringworm<\/em>) is a fungal skin infection caused by a group of zoophilic fungi known as dermatophytes. Microsporum sp.<\/em>, including M. gallinae<\/em> and M. gypseum<\/em>, are the most commonly isolated species and are considered the primary causes of Favus<\/em> in chickens. In addition, other species of Trichophyton sp.<\/em>, such as T. simii<\/em> and T. megninii<\/em>, have also been frequently reported as causative agents of Favus<\/em> cases in poultry.\n\nAlthough this disease is not regarded as a highly significant condition in chickens, it can still pose problems on some farms as it affects poultry health and productivity. The occurrence of this disease is closely associated with poor management practices and humid housing conditions. However, cases of ringworm or Favus<\/em> are rarely found in farms with good and intensive management systems.<\/p>\n\n\n\n

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Isolation of Microsporum gallinae<\/em> on: (a) SDA medium and (b) PDA medium<\/figcaption><\/figure>\n\n\n\n

Microsporum gallinae<\/em> isolated on selective media such as SDA (Sabouraud Dextrose Agar<\/em>) and PDA (Potato Dextrose Agar<\/em>) for approximately 21\u201328 days at 25\u00b0C shows grayish and pinkish coloration spreading across the PDA medium. In contrast, Microsporum gallinae<\/em> isolated on SDA medium exhibits a cottony white appearance that spreads over the surface of the medium (Murata et al.<\/em>, 2013).<\/p>\n\n\n\n

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Disease Incidence Based on Type of Causative Agent<\/figcaption><\/figure>\n\n\n\n

The occurrence of ringworm or Favus<\/em> cases is often associated with poor coop hygiene and high humidity levels. Based on data collected by the Medion Technical Education & Consultation Team from 2023 to May 2025, cases of infections caused by fungi\u2014including ringworm or Favus<\/em> in chickens\u2014have shown an increasing trend (Figure 1). The incidence of fungal infections in 2023 was 2%, rising to 2.8% the following year, and slightly increasing to 3% by May 2025. This highlights the importance of maintaining coop cleanliness and ensuring that chickens remain comfortable in their housing environment.<\/p>\n\n\n\n

Clinical Signs of Ringworm\/Favus<\/em> Disease in Chickens<\/strong><\/h2>\n\n\n\n

Ringworm or Favus<\/em> disease is transmitted to chickens through direct or indirect contact with infected skin, animals, insects, farm personnel, soil, equipment, and other contaminated materials carrying the infectious agent. The disease develops through fungal hyphae invasion of the superficial layer of the skin (stratum corneum<\/em>). Lesions first appear on the comb and wattles, then may spread, producing white spots that look as if sprinkled with flour or powder. As the disease progresses, these white spots begin to peel off, forming wrinkled crusts in the affected areas. The resulting hyperplasia and hyperkeratosis typically occur in the superficial skin layer, leading to minimal inflammatory response (Baron and Doneley, 2014).<\/p>\n\n\n\n

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Ringworm\/Favus<\/em> affecting the entire facial area, comb, and wattles of a layer chicken.<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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Ringworm\/Favus<\/em> on the comb of a layer<\/em> chicken.<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n

Although chickens can recover from this condition, the fungus may spread to feathered areas of the skin. When this occurs, feathers begin to fall out in certain regions, and thickened, crusty skin forms around the feather follicles. According to Bradley et al.<\/em> (1998), the appearance of white plaques on the comb, wattles, face, and\/or earlobes, followed by progressive feather loss extending to the neck, is often caused by infection with Microsporum gallinae<\/em>.<\/p>\n\n\n\n

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Hyperkeratosis and feather loss in native chickens caused by Ringworm\/Favus<\/em>.<\/figcaption><\/figure>\n\n\n\n

Prevention of Ringworm\/Favus<\/em> Disease in Chickens<\/h2>\n\n\n\n

Disease prevention in the poultry industry is an absolute necessity. No matter how good the management practices are, if the chickens become sick, profits that were within reach can quickly disappear. Preventing disease is easier, more cost-effective, and more beneficial than treatment because chickens that have already been infected will not perform as well as healthy ones. Even when recovery is achieved, it is often difficult for their production levels to return to normal.<\/p>\n\n\n\n

Control of ringworm or Favus<\/em> cases can be achieved through the implementation of strict biosecurity<\/em> measures, good management practices, and supportive treatments, including the following:<\/p>\n\n\n\n