@article { author = {Faraji, Mohammad Ali and Hassanpour, Hossein and Bahadoran, Shahab and Kaewduangta, Waranyoo and Zarei, Hamed and Hosseininejad, Morteza and Karimi Shayan, Tahere}, title = {Effect of Shirazi thyme on oxidant status and absorptive surface area of the intestine in cold-induced pulmonary hypertensive broiler chickens}, journal = {Veterinary Research Forum}, volume = {11}, number = {4}, pages = {371-376}, year = {2020}, publisher = {Faculty of Veterinary Medicine, Urmia University}, issn = {2008-8140}, eissn = {2322-3618}, doi = {10.30466/vrf.2018.90722.2195}, abstract = {The effect of Shirazi thyme as a medicinal plant on oxidant status (lipid peroxidation, protein oxidation, total antioxidant capacity and catalase activity) and absorptive surface area were measured in three segments of small intestine in cold-induced pulmonary hypertensive chickens. Birds were reared at 4 groups (thyme 0, 0.25, 0.5 and 1 % of diet) for 42 days. To induce pulmonary hypertension, the temperature was gradually decreased. The body weight was increased in thyme-0.25% birds in compared to control ones while it was decreased in thyme-1% birds. The feed consumption was only increased in thyme-1% birds. The feed conversion ratio was lower in thyme-0.25% birds and higher in thyme-1% birds than control ones. The duodenal and jejunal villus surface area was lower in thyme-1% birds than control ones while it was greater in the thyme-0.5% birds. The ileal villus surface area and duodenal laminae properia thickness was also greater in thyme-0.5% birds. Lipid peroxidation was only decreased in the duodenum and ileum of thyme-0.5% birds compared to control ones, whereas it was increased in the duodenum and jejunum of thyme-1% birds. Catalase activity was only elevated in the duodenum and jejunum of thyme-1% fed chickens. Total antioxidant capacity was increased in the duodenum, jejunum and ileum of thyme-0.5% birds. It is concluded that Shirazi thyme has beneficial effects on growth performance, intestinal absorptive surface area / secretory system and pulmonary hypertension response at low doses (0.25 and 0.5% fed) whereas high dose of this plant may be toxic (1% fed).}, keywords = {Broiler chicken,Oxidant status,Pulmonary hypertension,Shirazi thyme}, url = {https://vrf.iranjournals.ir/article_40409.html}, eprint = {https://vrf.iranjournals.ir/article_40409_8cce77e5d2440ee155167ad9128959cd.pdf} }