Abstract
ABSTRACT Objective: This study was performed to evaluate the effects of sage (Salvia officinalis) and lavender (Lavandula angustifolia) essential oils (EO) supplementation into drinking water on egg production, quality and eggshell hygiene in laying hens. Material and Methods: A total of 300 Nick Brown laying hens between 30 and 38 of age were used in a completely randomized design in three treatments and ten replicates. The treatments consisted of: control group, sage EO, lavender EO supplementation group. EOs were supplemented into drinking water (0.3 mL/L). Results: A lower value of egg production, egg weight, egg mass and deteriorations in feed efficiency, eggshell breaking strength and thickness were observed in lavender EO group (P
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