The effects of thyme oil and black cumin oil in broiler feeding on growth performance, intestinal histomorphology, and cecal volatile fatty acids

Authors : Özlem Durna AYDIN, Gültekin YILDIZ

Pages : 17-25

View : 15 | Download : 5

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The aim of the study was to investigate the effects of thyme oil and black cumin oil that are added to broiler rations at certain ratios, on performance insert ignore into journalissuearticles values(body weight, body weight gain, feed intake, feed conversion ratio, mortality, European Production Efficiency Factor insert ignore into journalissuearticles values(EPEF);, histomorphological parameters of jejunum and ileum, and cecal short-chain fatty acid insert ignore into journalissuearticles values(SCFA); concentrations. In the study, 216 male chicks insert ignore into journalissuearticles values(Ross 308); were randomly divided into 4 groups of 54 chicks each. Each group was divided into 9 subgroups of 6 chicks. The chicks were fed with corn, soya bean, and full-fat soybean-based rations for 42 days. While the control group was fed with basic ration, the experimental groups were fed respectively with 250 mg/kg thyme oil insert ignore into journalissuearticles values(T);, 100 mg/kg black cumin oil insert ignore into journalissuearticles values(B);, 250 mg/kg thyme oil, and 100 mg/kg black cumin oil insert ignore into journalissuearticles values(BT); added to the basic ration. There was no statistically significant difference between the experimental and control groups in terms of performance, mortality, and EPEF. No statistically significant difference was found in all groups in terms of jejunum histomorphology insert ignore into journalissuearticles values(villus height insert ignore into journalissuearticles values(VH);, crypt depth insert ignore into journalissuearticles values(CD);, and VH/CD ratio);. When the ileum histomorphology was examined, there was a statistically significant difference between the control and study groups in terms of crypt depth insert ignore into journalissuearticles values(P < 0.05);. On the 42nd day of the study, there was no statistically significant difference between the groups regarding acetic acid, propionic acid, isobutyric acid, butyric acid, isovaleric acid, valeric acid, isocaproic acid, caproic acid, total SCFA and BCFA insert ignore into journalissuearticles values(?mol/g); in the cecal digesta. In conclusion, the use of thyme oil and black cumin oil in broiler rations did not affect performance parameters and cecum essential fatty acids, but they had positive effects on intestinal health.
Keywords : Intestinal histomorphology, broiler, black cumin, thyme, short chain fatty acid