Levels of foot pad dermatitis in broiler chickens reared in 5 different systems

Pagazaurtundua, A; Warriss, P. D.

doi:10.1080/00071660600963024

Cited by 54 publications

(30 citation statements)

References 12 publications

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“…Although there have been a number of other studies of hock burn, few of these have incorporated the structure of the broiler industry using hierarchical logistic regression models (Bruce et al, 1990;Pagazaurtundua & Warriss, 2006;Haslam et al, 2007). Variance component models allowed us to measure the effect of farm-level, house-level and flock-level variables on the variation within the data.…”

Section: Discussionmentioning

confidence: 99%

Early warning indicators for hock burn in broiler flocks

Hepworth¹,

Nefedov²,

Muchnik³

et al. 2010

Avian Pathology

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Section: Discussionmentioning

confidence: 99%

Early warning indicators for hock burn in broiler flocks

Hepworth¹,

Nefedov²,

Muchnik³

et al. 2010

Avian Pathology

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“…FPD is thought to be caused mainly by litter condition, especially high moisture in the litter [11,17,20,21]. Litter condition involves stocking density [7,8,12,25,26], feedstuff composition [9,12], litter material [15] and housing system [24]. It varies significantly according to the farm management, and therefore, the incidence of FPD at different farms is thought to be uneven.…”

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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“…Hock burn was assessed using four levels: no lesion on hocks (0); minimal (1) or superficial lesions (2); moderate or severe lesions (3) (Welfare Quality Consortium, 2009;Butterworth, 2013). Footpad lesions were scored according to five levels: a score of 0 indicated no lesion, 1 indicated a very small or superficial lesion, 2 indicated a mild lesion (minor superficial lesion), 3 indicated a medium-severity lesion (moderate hyperkeratosis), and 4 indicated a severe lesion (deep and large epithelial necrosis) (Pagazaurtundua and Warris, 2006;Welfare Quality Consortium, 2009;Butterworth, 2013). Feather coverage of each bird was scored on a scale of 0 to 2 (Dawkins et al, 2004;Welfare Quality Consortium, 2009).…”

Section: Datamentioning

confidence: 99%

Effects of different floor housing systems on the welfare of fast-growing broilers with an extended fattening period

Çavuşoğlu¹,

Petek²,

Abdourhamane³

et al. 2018

Arch. Anim. Breed.

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Abstract. This study was made to investigate the long-term effects of different floor housing systems on the welfare of fast-growing broilers. The experiment was performed on 210-day-old fast-growing hybrid male chickens with identical conditions until 47 days of age. Animal-based welfare parameters were measured to investigate the welfare level in the group housed on deep litter, a litter and slat system, and a slatted floor, with five replicates for each group. Results showed that the main welfare indicators in live birds, such breast dirtiness, plumage score, footpad lesion, and hock burn lesion, were negatively affected in broilers kept on conventional deep-litter floor housing. But hemorrhage or lesion scores of the breast and shoulder of broilers in slat floor housing were found to be significantly greater than in conventional deep litter as a result of a heavy body weight at a greater slaughter age (p < 0.05). Pathologically, the prevalence of footpad and hock joint dermatitis was very high in the deep-litter housing system. Femoral head necrosis was not observed in any floor housing group. The results indicated that keeping broilers on a slat flooring system is preferable for younger slaughter ages and for a lighter slaughter weight. When considering the relationship between animal welfare and production economy, moving from one floor house system to another floor housing system should be carefully weighted in future decisions. Moreover, further investigations are needed in order to examine the incidence of joint and bone problems with muscle inflammation in heavier broilers in commercial conditions.

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Levels of foot pad dermatitis in broiler chickens reared in 5 different systems

Cited by 54 publications

References 12 publications

Early warning indicators for hock burn in broiler flocks

Early warning indicators for hock burn in broiler flocks

Footpad Dermatitis in Broiler Chickens in Japan

Effects of different floor housing systems on the welfare of fast-growing broilers with an extended fattening period

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