Effects of dietary thyme and rosemary essential oils on biochemical parameters, anti-oxidant metabolism, small intestinal morphology and myofiber structure of superficial pectoral and biceps femoris muscles in broilers
Date
2023Metadata
Show full item recordAbstract
This study was aimed at determining the effects of dietary supplementation with thyme
essential oil (TEO) and rosemary essential oil (REO) on blood parameters, the anti-oxidant
metabolism in the liver, breast and drumstick muscle tissues, the morphology of the small
intestine, and the myofibril structure of the superficial pectoral and biceps femoris muscles. For
this purpose, 400 three-day-old male Ross 308 chicks were used. Five groups, each comprising
80 broilers, were established. The control group was fed on a basal diet alone and groups thyme1, thyme-2, rosemary-1 and rosemary-2 received basal diets supplemented with 0.15 g kg-1 of
TEO, 0.30 g kg-1 of TEO, 0.10 g kg-1 of REO and 0.20 g kg-1 of REO, respectively. The serum total
cholesterol and low-density lipoprotein levels were decreased significantly in group thyme-1.
Dietary TEO and REO significantly increased glutathione levels in all tissues. Drumstick catalase
activity was significantly increased in groups thyme-1, thyme-2 and rosemary-2. Superoxide
dismutase activity was significantly increased in the breast muscle of all groups that received
dietary TEO and REO. Histomorphometrical analyses demonstrated that dietary
supplementation with TEO and REO increased both crypt depth and villus height in the small
intestine. In result, the tested doses of dietary TEO and REO were ascertained to improve the
intestinal morphology and to increase the anti-oxidant metabolism mainly in the breast muscle,
the drumstick muscle and liver.
Source
Veterinary Research ForumVolume
14Issue
5URI
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10278904/pdf/vrf-14-249.pdfhttps://hdl.handle.net/20.500.12418/14530