Effects of feeding thymol and isoeugenol on plasma triglycerides and cholesterol levels in japanese quail

LUNA, A.; LABAQUE, M. C.; FERNANDEZ M. E.; ZYGADLO, J. A.; MARIN, R. H .

JOURNAL OF ANIMAL AND PLANT SCIENCES

PAKISTIAN AGRICULTURAL SCIENTISTS FORUM

Año: 2018 vol. 28 p. 56 - 62

1018-7081

Dietarysupplementation can be considered one of the main strategies to include newadditives with beneficial effects into animal products. Thymol supplementation hasshown to improve oxidative stability of eggs and meat during storage and also toincrease the relative composition of polyunsaturated fatty acids. Feed supplementationwith isoeugenol has shown to increase hatching success. The present studyevaluates supplementation with thymol and isoeugenol on plasma lipid profile inJapanese quail. At 4 weeks of age, 48 males and 96 females were housed ingroups of 1 male and 2 females and assigned during 10 weeks to 1 of 4 diettreatments: vehicle or 400 mgkg-1 of butylated-hydroxytoluene(controls), and 400 mg kg-1 of thymol or isoeugenol. Body weight,growth rate, and egg production were determined. At 14 weeks of age, plasmalipids (total cholesterol, HDL-cholesterol, LDL-cholesterol and triglycerides)were also determined. Results demonstrated that supplementation with thymol andisoeugenol increased female triglycerides compared to males and to controlfemales. No triglyceride changes were induced by butylated-hydroxytoluene. Bodyweight, growth rate and egg production were not affected by dietary treatments.The increased plasma triglycerides observed in female birds may have biologicalrelevance to better sustain the metabolic needs during laying period. Theseresults contribute to show the potential usefulness of these essential oil maincomponents as natural feed supplement alternatives for poultry.