Hypolipidemic effects of Satureja khuzistanica essential oil in broiler chicken are realized through alteration in steroid hormones [Broyler tavuklarda Satureja khuzistanica esansiyel yağın hipolipidemik etkileri steroid hormonlardaki değişim yoluyla oluşturulur]

Two experiments were conducted to evaluate the effects of high and low doses of satureja khuzistanica essential oil (seo) on blood lipid constituents and sex hormones in broiler chicks. in trail 1,420 one-day-old cobb 500 chicks of both sexes were randomly placed in 21 floor pens to examine the effect of supplementation of drinking water with 0,0.5,1.0,1.5,2.0,and 2.5 g/l seo or 3.0 g/l polysorbate-80 (control+) in 3 replicates of 20 birds each. in experiment 2,720 newly hatched male arian chicks were randomly assigned to 36 floor pens to examine the effect of 0,0.2,0.3,0.4 and 0.5,g/l seo or 0.5 g/l polysorbate-80 (control+) in 6 replicates of 20 birds each. as a result of this study,seo at 0.5 and 0.3 g/l in experiments 1 and 2,respectively,modulated serum cholesterol and high density lipoproteins (hdl) levels,albeit the differences were not significant when compared to appropriate control groups (p>0.05). the seo at 0.5 g/l caused significant decrease (16%) in abdominal fat percentage of the birds at 28 d (trial 1; p<0.05). in trail 2,inclusion of seo into drinking water at 0.2,0.3,0.4 and 0.5 g/l significantly reduced the serum estradiol to 50,50 and 45 percent,respectively,and increased serum testosterone level by about 2,4,4 and 5 folds,respectively,in comparison with the control- birds (p>0.05). the results propose the possibility of testosterone-coupled hypolipidemic properties for seo in broiler chicken. © 2015,kafkas university. all rights reserved.