The Development of Dermatitis (Scabby-Hip) on the Hip and Thigh of Broiler Chickens

Harris, Glenda C.; Musbah, Muhamad; Jn, Beasley; Gs, Nelson

doi:10.2307/1589515

Cited by 25 publications

(17 citation statements)

References 6 publications

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“…Unfortunately, information about the occurrence of foot-pad lesions in the present series of cases was not available from the inspection services. 'Scabby hip' is another condition presenting similar gross and microscopic changes (Harris et al, 1978). This condition is associated with high bird density, which causes more contact between birds and, very probably, is not a specific disease entity as it may be caused by scratches and small wounds on the broiler's back, thigh and hip, being reproduced by scratching of the skin with a chicken foot (Jansen, 1997).…”

Section: Discussionmentioning

confidence: 99%

Diagnosis of skin lesions in condemned or downgraded broiler carcasses — a microscopic and macroscopic study

et al. 2000

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Eight hundred skin samples from broiler carcasses condemned or downgraded for skin lesions were collected at five processing plants. Histologicall y, 45.25% were cellulitis, 19.00% were atypical fowlpox, 3.25% were dermal squamous cell carcinoma (DSCC), 17.00% were non-specific dermatitis, 0.5% were focal haemorrhages and 0.25% were haemangiomas. Of the samples, 14.75% were histologically normal. Macroscopically, increased thickening of the skin was a frequent finding occurring in all the skin diseases, as well as skin discoloration, dark nodules in feather follicles and crusts. Skin scratches were associated with all of the diseases, except DSCC. Crater-like ulcers occurred in DSCC and fowlpox. Cellulitis was more frequent on the abdomen, fowlpox on the dorsum, DSCC in thighs, and non-specific dermatitis on the dorsum, thighs, legs and breast. It was concluded that macroscopic changes are not specific and examinations at slaughterhouses do not allow classification of broiler skin diseases. Histological examination appears to be an important tool to provide more accurate data.

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Section: Discussionmentioning

confidence: 99%

Diagnosis of skin lesions in condemned or downgraded broiler carcasses — a microscopic and macroscopic study

et al. 2000

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“…There have been other reports of various types of dermatitis in broiler age chickens but these differ from the condition reported here. Dermatitis due to Rhodotorula species occurs on the feathered parts of the bird (Beemer et al, 1970, Page et al, 1976; a contact dermatitis in broilers affecting the hip and thigh regions has been described (Harris et al, 1978); black necrotic skin lesions caused by Aspergillus fumigatus have been described (Yamada et al, 1977) and more recently a new skin condition affecting the anterolateral aspect of the leg below the femorotibial joint, the thigh and in some cases the back and flank ' (Randall et al, 1984) but these conditions appear to be different entities.…”

Section: Discussionmentioning

confidence: 99%

A contact dermatitis of broilers ‐clinical and pathological findings

Greene¹,

McCracken²,

Evans³

1985

Avian Pathology

202

125

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A new skin condition of broilers which results in the downgrading of up to 15-30% of broiler carcases/week is described. Unsightly brown-black coloured erosions and ulcers occur on the breast, hock and foot skin. Histopathological examination of these revealed acute inflammation with necrosis of the epidermis and in more severe cases, the upper dermis. A study of the condition has shown a strong association between the appearance of lesions and poor litter conditions and that birds as young as 9 days may be affected. It is suggested that the condition is a contact dermatitis. A study of the development of lesions in one flock is also described.

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“…Scabby hip is not related to wet litter, unlike contact dermatitis, and is more readily visible than cellulitis (Norton, 1997). The prevalence of scabby hip has been found to increase with increasing stocking density (Harris et al, 1978), presumably due to lesions caused by birds moving over other birds. Thus, use of perches could potentially cause the birds to injure each other when moving between perch levels, however, no such effect was found.…”

Section: Breast Blisters In Broilersmentioning

confidence: 97%

“…These were scored on a threepoint scale divided into no blisters (score 0), mild blisters (small and colourless blisters; score 1), and severe blisters (large or dark coloured blisters; score 2) and recorded together with the wing-tag number for each individual bird. In addition, the prevalence of crusted, dry scabs at the base of and between feather follicles on the thighs and hips, also known as scabby hip (Harris et al, 1978), was recorded for each individual, and lesions on foot-pads and hocks were scored on a three-point scale (Ekstrand et al, 1997).…”

Section: Production Data Breast Blisters and Other Carcase Datamentioning

confidence: 99%

Breast blisters in groups of slow-growing broilers in relation to strain and the availability and use of perches

Nielsen¹

2004

Br. Poultry Sc.

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1. The relationship between perching behaviour, availability of perches and the incidence and severity of breast blisters in broilers was investigated together with a comparison between two slow-growing broiler strains. 2. Sixteen single strain groups (n = 60) of Labresse and i657 broilers were subjected throughout the experiment to one of three perch availabilities: 15 cm per bird (Labresse and i657), 7.5 cm per bird (i657 only), and 0 cm per bird (i657 only) with 4 replicates per treatment. The birds were housed indoors from one day old, and at 43 d of age 52 birds from each group were moved to outdoor housing facilities with access to grass-covered outdoor areas until slaughter at 84 d of age. 3. The use of perches was monitored via video recordings throughout the experimental period. The severity of breast blisters was recorded on a scale from 0 to 2 at slaughter. 4. Groups of i657 with 15 cm perch per bird used these more than groups with 7.5 cm perch per bird (19% vs 8% of birds perching at midnight). A positive association between access to perches and severe breast blisters (score 2) was found in the groups of i657, with odds ratios of 3.1 and 3.4 for 7.5 and 15.0 cm per bird, respectively, relative to the no-perch treatment. 5. Labresse were more likely to develop breast blisters than i657 (odds ratio 3.5), but used the perches less (0.1 vs 9.5 birds perching at midnight) and weighed less (2011 g vs 2246 g) than i657. 6. Males had a higher incidence of breast blisters than females (odds ratio 12.2), and this was most prominent in the Labresse strain (odds ratio 40.0). 7. In some broiler strains access to perches may be associated with an increase in the occurrence of severe breast blisters, but strain and sex of broiler chickens appear to have a much larger influence than access to perches on the incidence of breast blisters.

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The Development of Dermatitis (Scabby-Hip) on the Hip and Thigh of Broiler Chickens

Cited by 25 publications

References 6 publications

Diagnosis of skin lesions in condemned or downgraded broiler carcasses — a microscopic and macroscopic study

Diagnosis of skin lesions in condemned or downgraded broiler carcasses — a microscopic and macroscopic study

A contact dermatitis of broilers ‐clinical and pathological findings

Breast blisters in groups of slow-growing broilers in relation to strain and the availability and use of perches

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