Effects of Eucalyptus and Myrtle Essential Oil on Performance, Carcass Characteristics and Immune System of Broiler Chickens
Subject Areas : Journal of Animal BiologyZainab Zahrabi Moghadam 1 , Ali Aghaei 2 , Mohammad Reza ghorbani 3 , Saleh Tabatabai Vakili 4
1 - 1- Department of Animal Science, Faculty of Animal science and Food Technology, Agricultural
2 - 1- Department of Animal Science, Faculty of Animal science and Food Technology, Agricultural
3 - 2- Department of Animal Sciences, Shirvan Faculty of Agriculture, University of Bojnord, Bojnord, Iran
4 - 1- Department of Animal Science, Faculty of Animal science and Food Technology, Agricultural
Keywords: Safety, Eucalyptus, Myrtle, Broiler, Growth,
Abstract :
This research was conducted in order to evaluate the performance, carcass characteristics and immune system of broiler chickens feed with eucalyptus and myrtle essential oil. Number of 250 one-day-old broiler chickens (mixed of two sexes) of Ras 308 strain were used in a completely randomized design with 5 treatments and 5 repetitions and 10 chickens in each repetition for 42 days. The treatments include 1- basic ration (control) 2- basic ration with 250 mg/kg of eucalyptus essential oil 3- basic ration with 250 mg/kg of essential oil myrtle, 4- basic ration with 125 mg/kg of essential oil Eucalyptus and 125 mg/kg essential oil of myrtle, 5- The basic diet was supplemented with 250 mg/kg of eucalyptus essential oil and 250 mg/kg of myrtle essential oil. The results showed that the treatments had no significant effect on feed consumption. But they caused a decrease in body weight and an increase in the feed conversion ratio compared to the control treatment. The treatments caused a decrease in the relative weight of the breast and an increase in abdominal fat compared to the control treatment (p 0.05). These findings showed that the addition of eucalyptus essence and the myrtle caused a decrease in performance, a decrease in the relative weight of the breast, an increase in abdominal cavity fat, and an increase in the antibody level against sheep red blood cells.
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