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Animal Breeding and Genetics
Asian-Australasian Journal of Animal Sciences 2004;17(3): 434-440.
DOI: https://doi.org/10.5713/ajas.2004.434    Published online January 1, 2004.
Protective Effect of Modified Glucomannans against Changes in Antioxidant Systems of Quail Egg and Embryo due to Aurofusarin Consumption
J. E. Dvorska, P. F. Surai
The aim of this study was to evaluate effects of modified glucomannan (MycosorbTM) on the antioxidant profile of egg yolk and tissues of newly hatched quail after aurofusarin inclusion in the maternal diet. Fifty-four 45 day-old Japanese quail were divided into three groups and were fed a corn-soya diet balanced in all nutrients ad libitum. The diet of the experimental quail was supplemented with aurofusarin at the level of 26.4 mg/kg feed in the form of Fusarium graminearum culture enriched with aurofusarin or with aurofusarin plus MycosorbTM at 1 g/kg feed. Eggs obtained after 8 weeks of feeding were analysed and incubated in standard conditions of 37.5 C/55% RH. Samples of quail tissues were collected from newly hatched quail. The main carotenoids, retinol, retinyl esters and malondialdehyde were analysed by HPLC-based methods. Inclusion of aurofusarin in the maternal diet was associated with decreased carotenoid and vitamin A concentrations in egg yolk and liver of newly-hatched quail. Furthermore, lipid peroxidation in quail tissues was enhanced. Inclusion of modified glucomannan (MycosorbTM) in the toxin-contaminated diet provided a significant protective effect against changes in antioxidant composition in the egg yolk and liver. It is suggested that a combination of mycotoxin adsorbents and natural antioxidants could be the next step in counteracting mycotoxins in animal feed.
Keywords: Aurofusarin; Quail; Mycosorb; Carotenoids; Vitamin A; Lipid Peroxidation
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