Effect of TEX-OE(®) treatment on the development of heat shock proteins in commercial broiler chicks and the impact on performance indicators in the grow-out period

Br Poult Sci. 2014;55(5):592-7. doi: 10.1080/00071668.2014.956287. Epub 2014 Oct 15.


Heat shock proteins (HSPs) are highly conserved proteins, shown to protect organisms against physical and physiological stress. TEX-OE(®) is a patented total extract of the fruit of Opuntia ficus indica, which has been demonstrated to accelerate the development of HSPs in several animal species. One-day-old commercial broiler chicks were treated with TEX-OE(®); HSP was measured by enzyme-linked immunosorbent assay (ELISA), and a large commercial field trial investigated key performance indicators (KPIs) in treated versus untreated controls chicks. TEX-OE(®) significantly increased HSP concentrations in treated chicks versus controls. Final cumulative mortality, liveweight and percentage factory-rejects were better than in controls. The accelerated HSP response may enable chicks to cope with early stressors, which is reflected in improved KPIs.

MeSH terms

  • Animals
  • Animals, Newborn / growth & development
  • Animals, Newborn / metabolism
  • Chickens / growth & development*
  • Chickens / metabolism*
  • Enzyme-Linked Immunosorbent Assay / veterinary
  • Fruit / chemistry
  • Heat-Shock Proteins / metabolism*
  • Opuntia / chemistry*
  • Plant Extracts / pharmacology*
  • Random Allocation


  • Heat-Shock Proteins
  • Plant Extracts