Decreased plasma carotenoids during ochratoxicosis

Area of Science:

• Poultry Science
• Animal Nutrition
• Toxicology

Background:

• Underpigmentation in broilers is a significant economic concern in the poultry industry.
• Field investigations linked underpigmentation to the presence of ochratoxin, but not aflatoxin.
• Carotenoids are key indicators of broiler carcass pigmentation.

Purpose of the Study:

• To investigate the effect of ochratoxin A on plasma carotenoid concentrations in broilers.
• To determine the relationship between dietary ochratoxin A levels and broiler pigmentation.

Main Methods:

• Two field cases of underpigmented broilers were analyzed for mycotoxin presence.
• A controlled laboratory experiment was conducted using broiler feed supplemented with ochratoxin A.
• Plasma carotenoid concentrations were measured in broilers fed different levels of ochratoxin A.

Main Results:

• Ochratoxin A was detected in field cases of underpigmented broilers.
• Dietary ochratoxin A at 4.0 and 8.0 µg/g significantly reduced plasma carotenoid levels (P < 0.05).
• Lower plasma carotenoid concentrations correlated with reduced carcass pigmentation.

Conclusions:

• Ochratoxin A negatively impacts broiler pigmentation by reducing plasma carotenoid levels.
• Controlling ochratoxin A contamination in feed is essential for maintaining broiler meat quality.
• This study highlights the importance of mycotoxin management in poultry production.