Rearing, bird type and pre-slaughter transport conditions of broilers II. Effect on foot-pad dermatitis and carcass quality

Villarroel Robinson, Morris Ricardo and Francisco, Iván and Ibáñez Ruiz, Miguel Ángel and Novoa Garrido, M. and Martínez Guijarro, Paula and Méndez, Jesús and Blas Beorlegui, Juan Carlos de (2018). Rearing, bird type and pre-slaughter transport conditions of broilers II. Effect on foot-pad dermatitis and carcass quality. "Spanish Journal of Agricultural Research", v. 16 (n. 2); pp. 1-10. ISSN 2171-9292. https://doi.org/10.5424/sjar/2018162-12015.

Description

Title: Rearing, bird type and pre-slaughter transport conditions of broilers II. Effect on foot-pad dermatitis and carcass quality
Author/s:
  • Villarroel Robinson, Morris Ricardo
  • Francisco, Iván
  • Ibáñez Ruiz, Miguel Ángel
  • Novoa Garrido, M.
  • Martínez Guijarro, Paula
  • Méndez, Jesús
  • Blas Beorlegui, Juan Carlos de
Item Type: Article
Título de Revista/Publicación: Spanish Journal of Agricultural Research
Date: 2018
ISSN: 2171-9292
Volume: 16
Subjects:
Freetext Keywords: poultry; thinning; slaughterhouse; mortality; welfare
Faculty: E.T.S. de Ingeniería Agronómica, Alimentaria y de Biosistemas (UPM)
Department: Producción Agraria
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A multivariable linear model was used to analyse the incidence of carcass quality defects over one year in a commercial database that included 1,856 flocks of Ross broilers (9,188 shipments, 1,975,420 carcasses inspected). The incidence of foot-pad dermatitis (FPD), scratches and wing and back haematomas was scored and analysed in terms of the effects of transport distance, arrival time to the slaughterhouse, waiting time at the slaughterhouse, maximum outside temperature on the day of transport, feed conversion rate, stocking density, bird type (yellow-skinned females or males, white-skinned females or males and roaster females), thinning (birds transported after thinning, birds remaining after thinning, and non-thinned flocks), bed litter type (rice hulls, chopped straw or wood shavings), and ventilation system (dynamic, static or tunnel). The incidence of FPD was significantly (p<0.001) lower at higher maximum temperatures and higher in flocks with a higher feed conversion rate. FPD also increased with stocking density (kg/m2 ) and was, on average, 5.0% higher in males than females. Regarding thinning, FPD was 13% lower in birds transported after thinning. Birds raised on chopped straw had more FPD (49.3%), followed by wood shavings (31.1%). Scratches were higher at higher temperatures and increased with transport distance. Birds transported after thinning had 5.8% more scratches than non-thinned birds, while increased stocking density (kg/m2 ) on the farm tended to increase scratches. Back haematomas were 32.6% higher in birds that were thinned, while wing haematomas increased with stocking density (kg/m2 ). Back haematomas were also 23.7% higher in males and more common in white-skinned birds.

Funding Projects

TypeCodeAcronymLeaderTitle
Madrid Regional GovernmentS2013/ABI-2913MEDGANUnspecifiedTecnologías de manejo, nutrición y genética para optimizar la producción de alimentos de origen animal característicos de la dieta mediterránea

More information

Item ID: 54580
DC Identifier: http://oa.upm.es/54580/
OAI Identifier: oai:oa.upm.es:54580
DOI: 10.5424/sjar/2018162-12015
Official URL: http://revistas.inia.es/index.php/sjar/article/view/12015/4008
Deposited by: Memoria Investigacion
Deposited on: 08 Apr 2019 09:11
Last Modified: 08 Apr 2019 09:11
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