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Compromised antioxidant status associated with ascites in broilers

B Enkvetchakul1, W Bottje, N Anthony

  • 1Department of Poultry Sciences, University of Arkansas, Fayetteville 72701.

Poultry Science
|December 1, 1993
PubMed
Summary
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Ascites in poultry significantly depletes key antioxidants like ascorbic acid, tocopherol, and glutathione (GSH) in lung and liver tissues. This study highlights the impact of ascites on antioxidant status in broiler chicks.

Area of Science:

  • Poultry Science
  • Oxidative Stress Research
  • Animal Nutrition

Background:

  • Ascites in poultry is linked to white blood cell infiltration and potential oxidant stress.
  • Endogenous antioxidants play a crucial role in mitigating oxidative damage.

Purpose of the Study:

  • To investigate the impact of ascites on major intracellular antioxidants: ascorbic acid, tocopherol, and glutathione (GSH).
  • To assess changes in these antioxidants in lung and liver tissues of broiler chicks under ascites-inducing conditions.

Main Methods:

  • Broiler chicks were exposed to low ventilation to induce ascites.
  • Lung and liver tissues were collected from control, ascites (ASC), and non-ascites (NASC) birds at 3, 5, and 7 weeks.
  • Concentrations of ascorbic acid, tocopherol, and GSH were measured.

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Main Results:

  • Birds with ascites (ASC) showed significantly lower concentrations of ascorbic acid, tocopherol, and GSH in lung and liver tissues compared to control and NASC groups.
  • Hepatic tocopherol was elevated in NASC birds at 7 weeks compared to ASC and control groups.
  • Uric acid levels varied, being lower in ASC birds at 3 weeks but higher at later stages (5 and 7 weeks) in lung and liver.

Conclusions:

  • Ascites significantly reduces key intracellular antioxidant levels in broiler chickens.
  • Monitoring antioxidant status may be important for managing ascites syndrome in poultry.
  • Further research into the role of uric acid in ascites pathophysiology is warranted.