Article Id: ARCC187 | Page : 515-520
H. Kaya*, A. Kaya, S.Çelebi and M. Macit hatice__karaca@hotmail.com
Address : College of Agriculture, Atatürk University, Erzurum 25240,Turkey


This experiment was conducted to investigate the effects of dietary essential oil combination (sage, thyme, and mentha extracts) (EOC) and vitamin E (Vit E) supplementation on laying hens’ performance, egg quality, yolk Thiobarbituric Acid Reactive Substance (TBARS) values and Escherichia coli (E. coli)and Coli form bacterium counts in excreta. One-hundred and twenty Lohmann white layers (36 weeks of age) were randomly allocated to five treatment groups, each having six replicate cages as subgroups comprising of four hens. Experimental groups were fed the basal diet (control group), basal diet plus 150 ppm of EOC (EOC-1), 300 ppm of EOC (EOC-2), 150 ppm Vitamin E (Vit E-1),or300 ppm Vitamin E (Vit E-2).The performance parameters, except for egg production and feed consumption, were not affected by the essential oil combination and Vit E supplementation. Feeding 300 ppm EOC caused significant reduction in egg production as compared to other groups(P


Antioxidant effect E. coli Egg quality Essential oil combination Layer.


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