A Cage-Related Foot Pad Dermatitis in Dwarf and Normal-Sized Single Comb White Leghorn Layers

Burger, R. A.; Arscott, G. H.

doi:10.3382/ps.0631512

Cited by 7 publications

(3 citation statements)

References 12 publications

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“…DISCUSSION FPD, a purulent dermatitis with hyperkeratosis, erosion and ulceration [17,21,28], has a fairly long history. Since 1969, FPD has been observed in turkeys, broilers and layers, with discussion of some causal/inducing factors, such as litter materials and feedstuff composition, that may influence the litter moisture [1,4,6,16,17,23]. Chicken feet, including footpads, are parts of the chicken that are eaten in Asia; so, condemnation of feet with FPD causes economic losses.…”

Section: Examination At Slaughterhousesmentioning

confidence: 99%

Footpad Dermatitis in Broiler Chickens in Japan

et al. 2011

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ABSTRACT. The prevalence of footpad dermatitis (FPD) in broiler chickens in Japan was investigated. In the first examination at slaughterhouses, lesions were commonly observed on the footpads of a total of 8,985 broiler chickens from 45 flocks on 36 farms. In 3 flocks, all the birds examined had lesions. In the other 42 flocks, the incidence of FPD ranged from 31.9% (81/254) to 99.5% (1/222). The footpad lesions were classified into 4 categories according to the severity of dermatitis as follows; score 0, 1,181 birds (13.1%); score 1, 2,992 birds (33.3%); score 2, 3,000 birds (33.4%); and score 3, 1,812 birds (20.2%). The mean scores of the flocks varied widely from 0.31 to 2.69. Males had higher mean scores than females. No significant differences were found between the mean scores of birds reared in windowless houses and those in open-sided houses. On 4 farms, the investigation was carried out in different seasons, and 3 of them showed higher mean scores in winter than in summer. Next, observation of 2,255 birds from 15 flocks on 5 farms during a 4-week rearing period revealed that FPD was already produced at 7 days of age and worsened with age.KEY WORDS: animal welfare, broiler, footpad dermatitis, lesion score.J. Vet. Med. Sci. 73(3): 293-297, 2011 Footpad dermatitis (FPD) has been regarded as a type of contact dermatitis of the footpad in chickens because it occurs on the points of contact with the ground and has been found in floor broilers under wet litter conditions [14]. The chicken feet, including the footpads, are edible parts of the chicken that are in high demand, especially in Southeast Asia. Chicken feet are exported from Japan and other countries, but feet with severe FPD are unfit for human consumption. They are condemned, resulting in significant economic losses. On the other hand, FPD is considered to be an indicator of animal welfare, especially in Europe, because the disease likely affects the health of the birds and inflicts suffering [7,22,26].So far, the prevalence of FPD in broiler chickens in Japan has not been reported. In this report, the first report on FPD in broiler chickens in Japan, we have investigated the prevalence of FPD in broiler chickens at processing plants and on farms. farms were slaughtered at 3 processing plants in the Minami-Kyushu area, and the other birds, which were reared on 7 farms, were slaughtered at 2 processing plants in the Tohoku area. The ages of the slaughtered birds ranged from 41 to 60 days (mean age of 53.2 days). In regard to the breed of the birds, 487 were Cobb chickens, 425 were Ross and Cobb chickens (mixture) and 8,073 were Ross chickens. Thirty-two flocks (6,386 birds) were reared in open houses, and 13 flocks (2,599 birds) were in windowless houses. Birds reared on 4 farms in Minami-Kyushu were examined twice, in summer (September) and in winter (January). MATERIALS AND METHODS Examination at slaughterhouses:Examination on farms: During the rearing period, a total of 2,245 broiler chickens (Ross breed) from 15 flocks on 5 farms in the Minam...

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Section: Examination At Slaughterhousesmentioning

confidence: 99%

Footpad Dermatitis in Broiler Chickens in Japan

et al. 2011

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“…The dermal changes may be steril or become the entrance for various bacteria like Staphylococcus aureus, Fusobact, necrophorum, Brucella abortus and others [16,17] . Many factors seem to contribute to the causes of this foot pad dermatitis mechanical insults due to the wire cage floors [2,10] or damp litter [4], the composition of diet particularly deficiencies of biotin and methionine [4], higher dietary energy intake resulting in a high body weight of the birds [10,12,15] and strain differences [11]. The use of plastic-coated floor inserts, perches or cushion floors has reduced the incidence of dermatitis in caged birds [2,10] .…”

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confidence: 99%

“…Many factors seem to contribute to the causes of this foot pad dermatitis mechanical insults due to the wire cage floors [2,10] or damp litter [4], the composition of diet particularly deficiencies of biotin and methionine [4], higher dietary energy intake resulting in a high body weight of the birds [10,12,15] and strain differences [11]. The use of plastic-coated floor inserts, perches or cushion floors has reduced the incidence of dermatitis in caged birds [2,10] . But, ball abscessi of chickens occur also in farms offering an optimal environment and increased dietary levels of vitamin and trace mineral mixtures have appeared without effect on the foot pad dermatitis [11. While the literature in broiler hens is voluminous, the foot disease has been hardly described in experimental mammals kept in cages under similar conditions : pododermatitis caused by rusty wire floors has been observed in a guinea pig colony [ …”

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Plantar Decubitus Ulcers in Rats and Rabbits

Honma

Kast

1989

Experimental Animals

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Wet litter and perches as risk factors for the development of foot pad dermatitis in floor-housed hens

Wang¹,

Ekstrand²,

Svedberg³

1998

British Poultry Science

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1. An experiment was conducted to determine whether different moisture levels of litter and perches with different hygienic conditions are involved in the manifestation of foot pad dermatitis in White Leghorn layers. 2. Four different treatments were compared: dry litter and dry perches; dry litter and wet perches; wet litter and dry perches; and wet litter and wet perches. Temperature, pH, air humidity and ammonia changes in the pens were monitored. 3. The mean prevalence of foot pad lesions in groups 1, 2, 3 and 4 was 17%, 13%, 49% and 48% respectively. The overall incidence of foot pad lesions in birds reared on dry litter was 38%, and in birds reared on wet litter 92%. 4. When the air temperature was above 20 degrees C, an increasing moisture content in the litter was associated with an increasing incidence of foot pad dermatitis. However, when the air temperature was below 20 degrees C there were no new cases of dermatitis in any of the 4 treatments. There were no significant differences in litter pH or ammonia between the 4 treatments when compared over the whole experiment. 5. Although the incidence of lesions was not significantly affected by the presence of wet perches, the area of the lesions tended to be in groups with wet patches than in groups with dry perches. 6. It is suggested that moisture and temperature are important contributing factors for the occurrence of foot pad dermatitis in laying hens. Wet perches may contribute to the severity of such lesions.

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A Cage-Related Foot Pad Dermatitis in Dwarf and Normal-Sized Single Comb White Leghorn Layers

Cited by 7 publications

References 12 publications

Footpad Dermatitis in Broiler Chickens in Japan

Footpad Dermatitis in Broiler Chickens in Japan

Plantar Decubitus Ulcers in Rats and Rabbits

Wet litter and perches as risk factors for the development of foot pad dermatitis in floor-housed hens

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