Influence of Age and Sex on Footpad Quality and Yield in Broiler Chickens Reared on Low and High Density Diets

Bilgili, S. F.; Alley, M. A.; Hess, J. B.; Nagaraj, M.

doi:10.1093/japr/15.3.433

Cited by 77 publications

(33 citation statements)

References 11 publications

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“…BILGILI et al (2006) also found similar results in an experiment with 21 days old broilers and increasing proportionally to the slaughter age. Several authors indicate that the presence of pododermatitis is directly related to the litter humidity and degree of compression (BILGILI et al, 2009;SHEPHERD & FAIRCHILD, 2010;MENDES et al, 2012;MARTINS et al, 2013).…”

Section: Resultssupporting

confidence: 76%

The use of infrared thermography in the identification of pododermatitis in broilers

et al. 2016

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International trade in broiler' feet, mainly to Asian markets, has demanded better quality control. The objective of this research was to study the suitability of using chicken footpad surface temperature to determine early lesions of pododermatitis. The project was conducted in two houses A1 and A2) in a commercial farm during one production flock. A1 had reused litter of wood shavings and rice hulls, and A2 had a new litter of sawdust. Both houses had positive pressure ventilation. The inner area of the poultry was virtually divided into three quadrants. The footpads were checked for the feet quality, and a degree of pododermatitis was awarded. Thermal images were made to test the surface temperature of the foot and identify inflammation in a total of 30 birds per house, at ages 5, 19, 29, 28 and 40 days of grow-out. Conditions of the rearing environment as well as the surface temperature of the litter, litter moisture, and degree of compression, were recorded. The environment within the houses did not differ. The surface temperatures of the footpad did not differ between the groups. The minimum footpad surface temperatures within the scores were similar, except for the score 3, which did not occur in A1. There was a prevalence of severe injury in the house with a new litter. KEYWORDS: rearing ambient, sub-clinical lesions, thermal image USO DA TERMOGRAFIA INFRAVERMELHO NA IDENTIFICAÇÃO DE PODODERMATITE EM FRANGO DE CORTERESUMO: O comércio internacional de pés de frangos, sobretudo para os mercados asiáticos, demanda maior controle de qualidade. O objetivo da pesquisa foi estudar o uso de temperatura superficial dos pés de frangos de várias idades, para identificar a presença de lesões de pododermatite. O projeto foi feito em dois galpões de uma granja comercial durante um lote. Os aviários eram similares (A1 e A2). A1 tinha cama reusada de maravalha e casca de arroz e A2, cama nova de pó de serra. Os aviários tinham ventilação de pressão positiva. A área interna dos aviários foi dividida em três quadrantes. Os coxins foram checados para avaliara a qualidade dos pés sendo atribuído o grau de pododermatite. Imagens térmicas foram feitas para testar a temperatura superficial do pé e identificar a lesão em 30 aves por aviário nas idades de 5; 19; 29; 28 e 40 dias. Foram registradas a ambiência do alojamento, a temperatura da cama e sua compactação. O ambiente dos aviários não diferiu. As temperaturas superficiais dos pés das aves não diferiram entre os grupos. As temperaturas superficiais mínimas dentro dos escores eram similares, com exceção do escore 3, que não teve em A1. Houve prevalência de mais injúrias severas no aviário com cama nova.

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Section: Resultssupporting

confidence: 76%

The use of infrared thermography in the identification of pododermatitis in broilers

et al. 2016

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“…Severe: lesion>7.5 mm), litter moisture and pH which are the main indicator of litter quality at the end of growth period [16,17] . All birds were scored for foot pad lesion.…”

Section: Number Of Replicate Bird Number In Each Replicatementioning

confidence: 99%

Effects of Stocking Density and Litter Type on Litter Quality and Growth Performance of Broiler Chicken

Petek¹,

Üstüner²,

Yeşilbağ³

2014

Kafkas Univ Vet Fak Derg

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SummaryThis study was conducted to investigate the effects of stocking density and litter type on growth performance of broiler chickens as well as dressing percentage and some litter quality indicators. 684 male broiler (Ross PM3) was used for a 6 weeks period in the experiment. The day-old chicks were randomly assigned in two litter groups: Rice hulls and wood shavings. Each litter group was further divided in three stocking density (15, 19 and 23 chicks/m 2 ). Chicks in the each group were randomized into three replicates at hatch and they were housed in a deep litter pens (1x2 m, each) in an environmentally controlled house. The litter type and stocking density had significant effect on the final body weight of broiler (P<0.05, P<0.001), lenght of foot pad lesions of the birds (P<0.001, P<0.001), litter moisture (P<0.01, P<0.05) and litter pH contents (P<0.05, P<0.05). The results of this study suggest that greater stocking density more than 15 chicks per square meter and rice hull adversely affects live body weight of broilers and main litter quality indicators. But up to a critical point, profitability increases with increased stocking density because of the reduction of fixed cost and more kilograms production of broiler per area. Depends on the price and availability rice hull can be used as litter material instead of wood shaving. Keywords: Broiler, Stocking density, Litter type, Litter quality, Growth performance Etlik Piliçlerde Yerleşim Sıklığı ve Altlık Türünün Altlık Kalitesi ve Büyüme Performansı Üzerine Etkileri ÖzetBu çalışma etlik piliçlerde yerleşim sıklığı ve altlık tipinin büyüme performansı, karkas randımanı ve altlık kalite parametreleri üzerine etkisini araştırmak amacı ile yapılmıştır. Çalışmada Ross PM3 genotipi 684 adet erkek etlik civciv kullanılmış ve çalışma 6 hafta sürmüştür. Çevre kontrollü bir kümeste yer alan deneme ünitesinde; pirinç kavuzu ve odun talaşının kullanıldığı gruplar ile herbir altlık grubu üzerinde; metrekare alanda 15, 19 ve 23 adet civcivin yer aldığı (2x3=6) altı ana grup oluşturulmuş ve her ana grupta 3 tekrarlı grup yer almıştır. Altlık türü ve barındırma yoğunluğunun canlı ağırlık (P<0.05, P<0.001), ayak tabanı lezyonu (P<0.001, P<0.001), altlık rutubet (P<0.01, P<0.05) ve pH (P<0.05, P<0.05) üzerine etkisi önemli bulunmuştur. Çalışmada birim metrekare alanda onbeşten fazla hayvan sayısı ve pirinç kavuzunun canlı ağırlık ve altlık kalitesini olumsuz etkilediği sonucuna ulaşılmıştır. Ancak birim alandaki sabit masrafların azalması ve üretim miktarının artmasından dolayı kritik bir noktaya kadar yerleşim sıklığı artırılabilir. Fiyat ve elde edilme imkanlarına bağlı olarak odun talaşı yerine pirinç kabuğu da altlık olarak kullanılabilir.

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“…Bras. Zootec., 45(5): [257][258][259][260][261][262][263][264]2016 The litter quality is a major concern in chicken production not only because it affects the flock health and productivity (Bilgili et al, 2006;Bjedov et al, 2013;Garcês et al, 2013), but it may act as potential reservoir and transmission vehicle for pathogens and potential pathogens. Besides seeking increased performance, the industry is also concerned with consumer confidence in the food supply chain, thereby endorsing several studies on the benefits of different bedding materials and litter chemical treatments/amendments to reduce the presence of pathogenic bacteria and to improve broiler productive traits.…”

Section: Introductionmentioning

confidence: 99%

Effect of litter treatment on growth performance, intestinal development, and selected cecum microbiota in broiler chickens

et al. 2016

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-The objective of this study was to determine whether the type of bedding materials (sand, wood shavings, and paper) and of two chemical amendments (lime and bentonite) could interfere with litter quality (moisture, pH, and total bacterial counts), thereby influencing also the growth performance and the development of intestinal traits and cecum microbiota of chickens. Two hundred and seventy male Ross 308 broiler chickens were randomly assigned into nine treatment groups with three replicates per treatment. Broiler productive parameters, relative weight of different intestinal segments, content of cecal total bacterial counts (total aerobic bacteria, Lactobacilli, and coliforms), as well as litter moisture, pH, and total aerobic bacteria and coliforms counts, were assessed. Litter material, per se, did not significantly affect the productivity parameters at the end of the experimental period (42 days) with the exception of protein efficiency. A significant trend was found among treatments with regard to weight gain and feed intake, with lower performance in birds on sand beddings. Litter pH was relatively homogenous between bedding types and amendments, but the moisture was significantly lower when sand was used. Litter type did not influence the relative weight of the different intestinal segments; however, the type of amendment affected the relative jejunum weight, which was increased in bentonite-treated litter. The use of lime and bentonite treatments may be helpful to decrease the differences in litter moisture associated with particular bedding materials. The tested amendments do not interfere with the productive performance of birds.

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Influence of Age and Sex on Footpad Quality and Yield in Broiler Chickens Reared on Low and High Density Diets

Cited by 77 publications

References 11 publications

The use of infrared thermography in the identification of pododermatitis in broilers

The use of infrared thermography in the identification of pododermatitis in broilers

Effects of Stocking Density and Litter Type on Litter Quality and Growth Performance of Broiler Chicken

Effect of litter treatment on growth performance, intestinal development, and selected cecum microbiota in broiler chickens

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