Polymelia and polydactyly in White Stork (Ciconia ciconia)

Onmuş, Ortaç

doi:10.15406/ijawb.2017.02.00019

Cited by 3 publications

(7 citation statements)

References 13 publications

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“…The extra limb and associated defects observed in this study are similar but not the same with previous reports of double malformations (polymelia and anus duplex) in a chick (Hoffmann, 1968); Polymelia and rudimentary wings in Nigerian Nera black chicken (Azeez & Oyagbemi, 2013); Polymelia with unhealed navel in Iranian indigenous young fowl (Hassanzadeh & Rahemi, 2017); Polymelia and polydactyly in white stork (Ciconia ciconia) (Onmus, 2017). The curved nature and reduced number of bones of the accessory limb observed in this chick was largely due to the short irregularly curved tibiotarsal bone, which also affected the position of the tarsometatarsal bone.…”

Section: Discussionsupporting

confidence: 91%

Polymelia, vent duplex, cloacal bursa duplex and triple caeca in a broiler chick

Plang¹,

Gosomji²,

Omirinde³

et al. 2021

Sokoto J. Vet. Sc.

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Congenital abnormalities are common among avian and mammalian species. They could be partial or total drift from the normal structural organization of the organ-systems. This article is aimed at reporting the occurrence of multiple abnormalities in a 3-week-old broiler chick. Ante mortem, post-mortem, radiological and osteological investigations were carried out, to ascertain the number and form of abnormalities present in the chick. A total of four different congenital abnormalities were discovered in this chick. These include: polymelia (presence of supernumerary or accessory limb which is usually malformed); double vents (vent duplex); double cloacal bursae (bursa duplex) and triple caeca. Radiological and postmortem examinations revealed the attachment of the accessory limb to the caudal depressor muscle as a form of synsarcosis, via a tendon that originated from the deep fossa of the modified femoral head of the accessory limb. The right vent was patent whereas the left was not. The two cloacal bursae were almost the same size, while the three caeca showed slight variation in length but typical features of the avian caecum (base, middle (body) and apex) were clearly visible. However, most cases of congenital anomalies in the avian species occur as multiple defects, with the most common being polymelia. The latest finding in this report is the discovery of double cloacal bursae (bursae of Fabricius), which has not been reported in the avian species.

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Section: Discussionsupporting

confidence: 91%

Polymelia, vent duplex, cloacal bursa duplex and triple caeca in a broiler chick

Plang¹,

Gosomji²,

Omirinde³

et al. 2021

Sokoto J. Vet. Sc.

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“…This description fits polymelia, a congenital disease consisting of the presence of a supernumerary limb. Its causes are not well known and it is thought that different genetic, teratological factors (pollutants, UV radiation or exposure to chemical or radioactive substances), environmental stress, poor nutrition or the action of parasites could be involved (Hays & Risebrough 1972, Albers et al 2001, Pourlis 2011, Rogers et al 2016, Onmus et al 2017, Perin 2017, Klingler & Glasmann 2019. This anatomical malformation is known in humans and vertebrate animals, especially domestic animals and anurans, but it is very rare in other wildlife groups.…”

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confidence: 99%

“…Unlike farmed birds, where it is commonplace (Pourlis 2011, Hirschberg et al 2012, polymelia in wild birds is exceptionally rare. The scientific bibliography contains only 15 described cases of polymelia in birds, specifically in American Robin Turdus migratorius (Shufeldt 1919), House Sparrow Passer domesticus (Stoneman 1932), Mourning Dove Zenaida macroura (Frankowiak 1962, Robbins & Pokras 1995, Common Tern Sterna hirundo (Hays & Risebrough 1972), Cattle Tyrant Machetornis rixosa (Lopes et al 1981), Eastern Screech-owl Otus asio (Albers et al 2001), King Penguin Aptenodytes patagonicus (Voisin et al 2002), White-crowned Sparrow Zonotrichia leucophrys (Schiller et al 2007), Swainson's Hawk Buteo swainsoni (Rogers et al 2016), White Stork Ciconia ciconia (Onmus et al 2017), Jackass Penguin Spheniscus demersus (Vanstreels et al 2018, Snyman et al 2022, Silver Gull Chroicocephalus novaehollandiae (Woehler & Holzmann 2020) and Pied Flycatcher Ficedula hypoleuca (Fuertes-Recuero et al 2023). Polymelia is sometimes confused with polydactyly, a pathology in which the fingers of the limbs are duplicated that frequently appears in birds such as raptors, waders, Psittaciformes, Caprimulgiformes or Apodiformes (Chandler 1992, Frey et al 2001, Crosta et al 2002, Dogliero et al 2018.…”

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confidence: 99%

A case of polymelia in the Black-headed Gull Chroicocephalus ridibundus

Tomàs

2024

Revista Catalana d'Ornitologia

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Polymelia is a malformation consisting of the presence of supernumerary limbs. Although relatively common in farm animals and anurans, it is quite rare in wild vertebrates and, especially, birds. I describe here the case of a Black-headed Gull Chroicocephalus ridibundus seen in Barcelona (Catalonia, NE Spain) in January and February 2023 that had an atrophic leg originating from the distal posteromedial part of its right tibiotarsus. It was a healthy-looking bird, apparently in its second winter, and showed normal behaviour with no visible signs of any other pathology or malfunction. We are only aware of one previous case of polymelia in gulls and this is the first time it has been reported in a Black-headed Gull. It is also good example of survival in a bird affected by polymelia.

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“…So far, it has been reported among broiler chickens and other farming fowls (Abu-Seida 2014, Hassanzadeh & Rahemi 2017, Plang et al 2021, Snyman et al 2022). The only cases reported in wild birds are the Swainson's Hawk Buteo swainsoni (Rogers et al 2016) and the White Stork Ciconia ciconia (Onmuş 2017). However, in contrast with polymelia, polydactyly, which is defined as the presence of extra digit(s), is reported more frequently (Hollander & Levi 1942, Sakai 2006), and has been described in association with cases of polymelia (Onmuş 2017, Woehler & Holzmann 2020).…”

mentioning

confidence: 99%

“…The only cases reported in wild birds are the Swainson's Hawk Buteo swainsoni (Rogers et al 2016) and the White Stork Ciconia ciconia (Onmuş 2017). However, in contrast with polymelia, polydactyly, which is defined as the presence of extra digit(s), is reported more frequently (Hollander & Levi 1942, Sakai 2006), and has been described in association with cases of polymelia (Onmuş 2017, Woehler & Holzmann 2020). Here, we present anatomical data from the first report of polymelia in a passerine bird, the European Pied Flycatcher Ficedula hypoleuca .…”

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confidence: 99%

First Report of Polymelia in a Passerine Bird, the Pied Flycatcher

Fuertes-Recuero

Longhin

Chiesurin

et al. 2023

Ardea

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Polymelia is a congenital defect characterized by an excessive number of limbs. Leg malformations are unusual and have rarely been reported in birds. The ultimate mechanism that regulates this type of abnormal development is not yet well understood. Here we report polymelia in a nestling of the European Pied Flycatcher Ficedula hypoleuca. We have ringed more than 12,100 Pied Flycatcher nestlings since 1991 and have never observed this malformation before. To our knowledge, there is no study indicating polymelia in any bird of the order Passeriformes. We observed and studied a Pied Flycatcher nestling that had two extra limbs fused at the pelvis. We used X-rays, Computerized Tomography (CT) scan and Magnetic Resonance Imaging (MRI). We describe the observed malformations and discuss potential causes. The malformation could be due to an embryonic cause, such as a parasitic twin (pygopagus parasitic) or a genetic mutation.

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Polymelia and polydactyly in White Stork (Ciconia ciconia)

Cited by 3 publications

References 13 publications

Polymelia, vent duplex, cloacal bursa duplex and triple caeca in a broiler chick

Polymelia, vent duplex, cloacal bursa duplex and triple caeca in a broiler chick

A case of polymelia in the Black-headed Gull Chroicocephalus ridibundus

First Report of Polymelia in a Passerine Bird, the Pied Flycatcher

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