The ban on the use of antibiotics as growth promoters has stimulated the search for alternative feed supplements
in poultry production. The active principles of thyme essential oil act as a digestibility enhancer, balancing the gut
microbial ecosystem and stimulating the secretion of endogenous digestive enzymes and thus improving growth
performance in poultry (Lovkova et al., 2001; Williams and Losa, 2001). A study was performed to investigate the
effects of thyme essential oil (TEO) on performance, carcass characteristics, some blood parameters and ileal
microflora of Japanese quail. This study lasted 35 days of age. One hundred and fifty day-old male Japanese quail
chicks in a completely randomized design with two treatments (with or without 1 g/kg TEO) and five replicates of 15
birds each were used. All parameters were measured at the end of the experiment. The supplementation of TEO
significantly (P<0. 05) increased live body weight and relative weights of carcass and breast, lowered serum
triglyceride, total cholesterol and glucose and improved ileal microflora. It was concluded that the addition of 1 g/kg
TEO might offer some beneficial effects on Japanese quail to increase live body weight and improve some blood
parameters and gut miroflora.
The ban on the use of antibiotics as growth promoters has stimulated the search for alternative feed supplementsin poultry production. The active principles of thyme essential oil act as a digestibility enhancer, balancing the gutmicrobial ecosystem and stimulating the secretion of endogenous digestive enzymes and thus improving growthperformance in poultry (Lovkova et al., 2001; Williams and Losa, 2001). A study was performed to investigate theeffects of thyme essential oil (TEO) on performance, carcass characteristics, some blood parameters and ilealmicroflora of Japanese quail. This study lasted 35 days of age. One hundred and fifty day-old male Japanese quailchicks in a completely randomized design with two treatments (with or without 1 g/kg TEO) and five replicates of 15birds each were used. All parameters were measured at the end of the experiment. The supplementation of TEOsignificantly (P<0. 05) increased live body weight and relative weights of carcass and breast, lowered serumtriglyceride, total cholesterol and glucose and improved ileal microflora. It was concluded that the addition of 1 g/kgTEO might offer some beneficial effects on Japanese quail to increase live body weight and improve some bloodparameters and gut miroflora.
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