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Oleuropein has hypophagic effects in broiler chicks
Usman Sulaiman1, Reagan Vaughan1, Paul Siegel1
1School of Animal Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States.
Frontiers in Physiology
|June 27, 2024
Summary
Oleuropein, a compound from olives, reduced feed intake and blood glucose in broiler chickens. These findings suggest oleuropein acts as an appetite suppressant and influences energy metabolism.
Area of Science:
- Animal Science
- Nutritional Biochemistry
- Poultry Science
Background:
- Oleuropein, a phenolic compound from olives, exhibits glucoregulatory effects in mammals.
- The impact of oleuropein on avian species, particularly broiler chickens, remains largely uninvestigated.
Purpose of the Study:
- To investigate the effects of dietary oleuropein supplementation and exogenous administration on feed intake and glucose homeostasis in broiler chicks.
- To determine the influence of oleuropein on body weight and organ weights (breast muscle, liver) in broiler chickens.
Main Methods:
- Broiler chicks received varying dietary concentrations of oleuropein (0-1,000 mg/kg) or intraperitoneal (IP) injections (0-200 mg/kg).
- Intracerebroventricular (ICV) injections were administered to fasted chicks to assess central effects on feed intake.
- Feed intake, blood glucose levels, body weight, and organ weights were measured post-administration.
Main Results:
- Both IP and ICV oleuropein injections significantly decreased feed intake in broiler chicks, with effects most pronounced at 60 minutes post-injection.
- Higher doses of oleuropein administered via IP injection resulted in a reduction in blood glucose levels one hour post-injection.
- No significant impact on body weight, breast muscle, or liver weights was observed within the 7-day study period.
Conclusions:
- Oleuropein administration, both systemically and centrally, acts as a mild appetite suppressant in broiler chickens.
- Oleuropein influences energy metabolism by affecting feed intake and blood glucose levels in poultry.
- Further research is warranted to explore the specific mechanisms and optimal application of oleuropein in poultry production.
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