Effects of supplemental essential oil on growth performance, lipid metabolites and immunity, intestinal characteristics, microbiota and carcass traits in broilers

Effects of Coriander Essential Oil on the Performance, Blood Characteristics, Intestinal Microbiota and Histological of Broilers

“…Najafi & Torki (2010) indicated that dietary supplementation with essential oils (thyme, cinnamon and clove) did not affect cholesterol or HDL level in broilers. Hong et al (2012) showed that broilers supplemented with essential oil (oregano, anise and citrus peel) had higher HDL and lower VLDL levels compared with the controls, while no effect was observed on LDL concentrations.…”

“…Case et al (1995) reported reduced blood triglyceride levels in Leghorn chickens supplemented with 150 ppm ether thymol extract, probably due to the active ingredients in these supplements that may reduce the activity of lipolysis enzymes, thereby reducing reduce hepatic fatty acid synthesis. Hong et al (2012) showed that there were no clear trends for the response of blood lipoproteins to essential oil treatments. It was reported that coriander enhances fecal bile acid and natural sterols, which resulted in lowering serum cholesterol.…”

“…Evidences suggest that some herbal plants have appetitestimulating properties, anti-bacterial effects, or may have antioxidant functions (Mountzouris et al, 2007). It has been reported that essential oils improved poultry growth performance because of their ability to increase dietary digestibility (Jamroz et al, 2005;Cross et al, 2007), to balance the gut microbial ecosystem, improving gut health (Hong et al, 2012), and to stimulate the secretion of endogenous digestive enzymes (Williams & Losa, 2001;Cross et al, 2007).…”

Performance, blood parameters, and carcass yield of broiler chickens supplemented with Mexican oregano oil

“…Blood variables were measured (n = 10 blood samples): cholesterol (CHOL), triglycerides, high-density lipoproteins (HDL), low-density lipoprotein (LDL), very low-density lipoprotein (VLDL), and blood biometrics (erythrocytes, hemoglobin, heterophils, eosinophil mean corpuscular volume, lymphocytes, monocytes, and mean corpuscular hemoglobin) according to Cohn et al (1988), Medway et al (1969) and Benjamin (1984). Blood samples were obtained by puncture of the left vein of broilers at 42 days of age according to Hong et al (2012) with some modifications. Blood samples were immediately centrifuged for 15 min at 1,938 × g to obtain serum and were stored in Eppendorf tubes at -20 °C until analysis.…”

“…However, the European Union has banned antibiotic use in animal feed production out of concerns for bacterial resistance and hazards to public health (Hong et al, 2012). The ban has prompted researchers to study natural additives for growth promoter, antibiotic, and antioxidant properties in animal production (Adil et al, 2011;Hong et al, 2012;Cho et al, 2014;Park et al, 2014;Mohiti-Asli and Ghanaatparast-Rashti, 2015;Hashemipour et al, 2016).…”