期刊
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
卷 97, 期 15, 页码 5233-5240出版社
WILEY
DOI: 10.1002/jsfa.8407
关键词
poultry; maternal diet; embryonic development; lipid fractions; natural antioxidants
资金
- CONICET (Consejo Nacional de Investigaciones Cientificas y Tecnicas)
- FONCyT (Fondo para la Investigacion Cientifica y Tecnologica) [Prestamo BID-PICT 2014-2764]
- SECyT, UNC (Secretaria de Ciencia y Tecnologia, Universidad Nacional de Cordoba), Argentina
BACKGROUNDPolyunsaturated fatty acids (PUFA) are crucial components of egg yolk and particularly prone to oxidative damage, generating losses of nutrients for embryonic development and influencing the quality of eggs for human consumption. The aim of this study was to evaluate whether dietary thymol (a natural antioxidant) is related to changes in quail egg yolk total (T), triglyceride (TG) and phospholipid (PL) fatty acid composition at different stages of embryo development. Thus female Japanese quail (100days of age) were assigned to one of two dietary treatments (12 individuals each): CON (basal diet) or THY (0.0016mol thymol day(-1) per bird). After 2 weeks of supplementation, eggs were incubated and samples were obtained at 0, 4 and 16 days of embryonic development. RESULTSIn 0 day THY eggs, -linolenic acid and n-3 PUFA in T and TG, docosahexaenoic acid and PUFA in T and arachidonic acid in TG were increased, while saturated fatty acids (SFA) in T were reduced. From 4 days on, PUFA, n-3 PUFA and SFA from T and TG in THY eggs were found to be similar to those of CON eggs. The changes in PL throughout incubation were similar in both dietary treatments. CONCLUSIONThymol would provide the embryo with PUFA for synthesis/deposition in membranes and/or assign to supply energy. Additionally, thymol supplementation would be advisable for the production of healthier table eggs. (c) 2017 Society of Chemical Industry
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