The Effects of Dietary Essential Oil Mixture Supplementation Preserved by Two Different Methods on Performance and Some Blood Parameters of Laying Japanese Quails Under Chronic Noise Exposure

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This study was conducted to determine the effects of essential oil mixture added into basic mixed feed on some parameters in laying quails exposed to chronic noise. Totally 100 laying quails, including 25 animals in each group, were used in the study. Every group was divided into 5 subgroups including 5 laying quails in each one. The animals were exposed to 100 dB of noise for 8 hours daily for 56 days. In the experiment, the highest feed conversion ratio (P 0.001) and the highest egg yield (P 0.01) were found in capsule group. Albumen height, albumen length, egg width, yolk height (P 0.001) and Haugh unit, shell ratio, weight of shell, yellow color (P 0.01) from egg quality criteria were found to be statistically higher in groups receiving feed with essential oil mixture than control groups. In terms of glucose, cholesterol and uric acid levels the lowest values were found in the negative control group (P 0.05). The lowest values were determined in the positive control group for digestion degrees of dry matter (P 0.05) and crude oil (P 0.001). The degree of digestion of crude protein was determined to be higher in groups fed with essential oil added feed than control groups (P 0.01). While the malondialdehyde (MDA) level was increased in plasma, liver and heart tissues with the effect of noise stress, liver and heart MDA levels decreased significantly in the capsule group. In conclusion, essential oils used due to their antioxidant characteristics were identified to decrease negative effects of noise stress.

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Blood parameters , chronic noise , essential oil mixture , quail , performance

Fırat University Veterinary Journal Of Health Sciences

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Fırat University Veterinary Journal Of Health Sciences