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Evaluation of sludge from paper recycling as bedding material for broilers.

A Villagrá1, I Olivas, V Benitez

  • 1Centro de Tecnología Animal CITA-IVIA, Polígono La Esperanza 100, Castellón, Spain. villagra_ara@gva.es

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Paper recycling sludge shows promise as a broiler chicken bedding material. While initial moisture is high, it dries effectively, with minimal impact on bird performance and welfare, except for a slight increase in hock burn.

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Area of Science:

  • Animal Science
  • Agricultural Engineering
  • Environmental Science

Background:

  • Traditional broiler bedding materials like wood shavings are widely used.
  • Investigating sustainable and cost-effective alternatives is crucial for the poultry industry.

Purpose of the Study:

  • To evaluate the suitability of paper recycling sludge as a broiler chicken litter material.
  • To compare its physical properties and impact on bird performance and welfare against wood shavings.

Main Methods:

  • Characterized physical properties (moisture, density, water-holding capacity) of sludge and wood shavings.
  • Assessed broiler growth, feed intake, and welfare indicators (tonic immobility, gait, lesions, foot pad dermatitis, hock burn, tibial dyschondroplasia) over an experimental period.
  • Compared performance and welfare data between broilers housed on sludge versus wood shavings.

Main Results:

  • Paper sludge initially had high moisture but dried effectively within 7 days to levels below wood shavings.
  • Broiler growth rate and feed consumption showed no significant differences between bedding types.
  • Most welfare indicators were similar, with only a higher incidence of hock burn observed in broilers on sludge bedding.

Conclusions:

  • Paper recycling sludge is a viable alternative broiler bedding material.
  • It meets most requirements for litter and does not negatively impact overall bird performance or welfare.
  • Further research is recommended to optimize its use and mitigate specific issues like hock burn.