Development of a pododermatitis score in breeding does using clustering methods

Olivas, Irene; Torres, A. G.; Villagrá, Arantxa

doi:10.1017/s1751731112002509

Cited by 7 publications

(9 citation statements)

References 16 publications

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“…A rabbit has sore hocks when a plantar or volar lesion is observed on at least one limb, as can be seen in the pictures of a link provided by Rosell [ 21 ], even the first stage; however, in our practice we did not use score grades for assessing ulcerative pododermatitis. In our protocol, we did not consider hyperkeratosis to be a lesion, neither did other authors [ 22 ], unlike Drescher and Schlender-Böbbis’ criterion [ 23 ]. Nevertheless, a callus might indicate the risk of a lesion occurring or, on the other hand, of healing [ 24 ].…”

Section: Methodsmentioning

confidence: 99%

Assessing Ulcerative Pododermatitis of Breeding Rabbits

Rosell¹,

Fuente

2013

Animals

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Simple SummarySore hocks are a health and welfare problem in rabbits housed in cages with mesh floors. Footrests are used to prevent them. They occupy part of the mesh floor of the cage but allow droppings to fall and also protect the rabbit’s feet. In this study we evaluated the use of footrests on 664 commercial farms visited in Spain and Portugal, and the rates of sick animals during 2001–2012; the attention given by producers to animal care was evident as 28% of farms with footrests in 2001 increased to 75% in 2012.AbstractRabbits in conventional farms are housed in wire net cages with mesh floors to separate them from droppings. In time, lacerations appear on the legs of adult rabbits causing ulcerative pododermatitis or sore hocks, a severe health and welfare problem. Pain causes behavioral changes; productivity is reduced and the most seriously affected animals die or are culled. In this study we evaluated the attention producers have given to this problem and its prevention by installing footrests in cages. We made 2,331 visits to 664 commercial farms in Spain and Portugal between 2001 and 2012, and evaluated morbidity by examining 105,009 females and 10,722 males. The study highlights that the rate of farms with footrests increased from 27.8% in 2001 to 75.2% in 2012. Prevalence of sore hocks in does in 2001 was 11.4%, decreasing to 6.3% in 2012; prevention of ulcerative pododermatitis was associated (P < 0.001) with the presence of footrests. Overall, prevalence was 4.87 ± 0.26 on farms with footrests and 13.71 ± 0.32 without (P < 0.01).

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Section: Methodsmentioning

confidence: 99%

Assessing Ulcerative Pododermatitis of Breeding Rabbits

Rosell¹,

Fuente

2013

Animals

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“…The condition is considered multifactorial; however, physical external pressure resulting from bearing of heavy body weight on wire mesh floors is suspected to play an important role in the pathogenesis. 6,20 The primary localization of lesions in the plantar metatarsal skin of hindfeet (98.1%) may be due to the physiology of mink where the body weight is mainly supported by the hind legs.…”

Section: Discussionmentioning

confidence: 99%

Foot Lesions in Farmed Mink (Neovison vison)

et al. 2015

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The aim of this study was to evaluate gross and histologic lesions and epidemiologic factors of foot lesions in farmed mink. The feet of 1159 mink from 4 Danish farms were examined and lesions described. Swabs from the lesions were taken from 27 mink for microbiology, and tissue samples from a representative spectrum of feet with and without lesions (n ¼ 22) were examined histologically. Feet were grouped according to gross inspection: no lesions (55.1%), hair loss (7.1%), hyperkeratosis (35.8%), and crusting (5.3%). Lesions were predominantly located in plantar metatarsal skin (98.1%). Staphylococci were the most prevalent microorganisms cultured from the lesions. There was a significant association between presence of lesions and sex (P < .0001), age (P < .0001), and color type (P ¼ .023). Lesion size was significantly different between hair loss and crusts and between hyperkeratosis and crusts (P < .0001). Histologically, lesions included varying degrees of orthokeratotic to parakeratotic hyperkeratosis and granulomatous to pyogranulomatous dermatitis with trichogranulomas as a dominant feature in all mink. The gross and microscopic lesions were comparable to physically induced changes in other species that develop as a response to repetitive friction or pressure. The condition may have an impact on animal welfare in mink production.

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“…Each grade was also associated with a macroscopic description of the dermatologic lesions observed at the metatarsi (‘sore hocks’) (Table 1). More recently, Olivas and others (2013) proposed a scoring system for breeding does taking into account different aspects and characteristics of the lesions. Although the authors recommend a simple system with only a three‐ or four‐point scale to provide a more consistent and reliable scoring method to be applied in practice, it is these authors' opinion that a higher level of details may also help in better identifying different stages of the lesions.…”

Section: Discussionmentioning

confidence: 99%

Husbandry risk factors associated with hock pododermatitis in UK pet rabbits (Oryctolagus cuniculus)

et al. 2014

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Pododermatitis, often called 'sore hocks', is a chronic, granulomatous, ulcerative dermatitis which most commonly affects the plantar aspect of the caudal metatarsal and tarsal areas. Pododermatitis is a common clinical finding in the pet rabbit population, but no data is available regarding the actual prevalence of this condition in the UK pet rabbit population or possible husbandry-related factors which may predispose pet rabbits to development of this condition. It was the aim of this study to determine the prevalence of pododermatitis within a sample pet rabbit population, and study possible correlations with husbandry, sex, breed and origin of the rabbits. Findings suggested that young rabbits are at a lower risk of pododermatitis compared with older rabbits; female domestic rabbits are more predisposed to pododermatitis than males; and 100 per cent of the neutered females examined showed clinical evidence of pododermatitis. The effect that different types of bedding may have on the prevalence of pododermatitis was also investigated. This study also produced a scoring system which can be used to score clinical cases. Our study is of clinical importance because it helps to recognise many of the factors which predispose pet rabbits to pododermatitis, representing the first step towards increased awareness of this extremely common problem.

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Development of a pododermatitis score in breeding does using clustering methods

Cited by 7 publications

References 16 publications

Assessing Ulcerative Pododermatitis of Breeding Rabbits

Assessing Ulcerative Pododermatitis of Breeding Rabbits

Foot Lesions in Farmed Mink (Neovison vison)

Husbandry risk factors associated with hock pododermatitis in UK pet rabbits (Oryctolagus cuniculus)

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