Birds of Indian Subcontinent

Changes in Carotenoid and Vitamin A Levels in Young Turkeys Infected with Eimeria meleagrimitis or E. adenoeides

Publication Type:Journal Article
Year of Publication:1983
Authors:Augustine, PC, Ruff, MD
Journal:Avian Diseases
Date Published:1983
ISBN Number:00052086
Keywords:Meleagris, Meleagris gallopavo, Phasianidae, Philomachus pugnax
Abstract:Changes in levels of plasma xanthophyll, plasma retinol, liver retinol, and liver retinylpalmitate in poults infected with Eimeria meleagrimitis or E. adenoeides were measured by high-performance liquid chromatography. Infection with either species significantly reduced total plasma carotenoids; the reduction was due largely to a decrease in xanthophyll to approximately 50% of control levels on the day of maximum effect. In addition, E. meleagrimitis infection decreased plasma retinol levels from 1.84 μg/ml plasma (controls) to 1.00 μg/ml plasma on day 6 postinoculation. Concomitantly, liver retinol levels fell from 0.23 μg/mg protein (controls) to 0.15 μg/mg protein, and liver retinylpalmitate levels fell from 0.74 μg/mg protein (controls) to 0.44 μg/mg protein. In contrast, Eimeria adenoeides infection caused little change in either plasma or liver retinol levels.
Short Title:Avian Diseases
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