The effects of egg addition to tarhana on the quarration of egg quaritation on egg production and quality criteria

The aim of this study was to determine the effects of dietary tarhana supplementation as a probiotic source at different doses on egg yield parameters and egg quality characteristics in Japanese quails. Japanese quails were used at the age of 10 weeks. The experiment lasted 56 days. The quails were divided into 3 groups and 8 replicates and 96 Japanese quails were used in the study. Treatment groups; 1) The control group, 2) T1 (0.25% Tarhana added feed), 3) T2 (0.50% Tarhana added feed). The experiment was conducted in cimuka brand laying quail cages with 60 x 35 x 97 cm dimensions. Feed consumption and feed conversion ratio were calculated by weekly. The eggs were collected daily and weighed. Egg analyzes were performed on Tuesdays and eggs collected every Monday were weighed and kept for one day and internal and external quality characteristics were determined. At the end of the study, it was determined that dietary tarhana suplementation in different doses did not affect the egg yield, feed consumption and feed utilization rate, internal and external quality characteristics of the eggs. It was determined that adding 0.5% tarhana supplementation increased the roche color scale value (Yellow value) compared to the control group and adding 1% tarhana decreased the fracture resistance. As a result, it was determined that addition of 0.5% tarhana can be used to increase egg yellow color without affecting egg performance. September 2019, 37 Pages Keywords: Quail, Tarhana, Probiotics