title: Effects of enzymatically treated Artemisia annua L. on growth performance and some blood parameters of broilers exposed to heat stress.
abstract: To evaluate the effects of enzymatically treated Artemisia annua L. (EA) on growth performance and some blood parameters of broilers exposed to heat stress (HS), 320 22-day-old Arbor Acres male broilers were randomly allotted into five groups with eight replicates of eight birds each. Broilers in the control group were housed at 22 ± 1°C and fed the basal diet. Broilers in the HS, HS-EA0.75, HS-EA1.00and HS-EA1.25groups were reared under HS (34 ± 1°C for 8 h/day and 22 ± 1°C for 16 h/day), and fed basal diet with 0, 0.75, 1.00 and 1.25 g/kg EA, respectively. The experiment ended at 42 days. Dietary 1.00 and 1.25 g/kg EA decreased blood pH and elevated body weight gain, feed intake and carcass yield compared to the HS group. Broilers fed EA diets had lower serum concentrations of malondialdehyde and corticosterone and activities of alanine aminotransferase and aspartate aminotransferase, and higher serum total superoxide dismutase activity, tri-iodothyronine concentration and tri-iodothyronine/thyroxine than the HS group. Serum catalase activity in HS-EA1.00and HS-EA1.25groups and activity to inhibit hydroxyl in the HS-EA1.00group were higher than the HS group. In conclusion, dietary 0.75-1.25 g/kg EA addition alleviated HS induced impairments in broilers.
authors.affiliation: College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China.
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Wan
authors.affiliation: College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China.
authors.forename: Luyi
authors.initials: L
authors.lastname: Jiang
authors.affiliation: College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China.
authors.forename: Haoran
authors.initials: H
authors.lastname: Zhong
authors.affiliation: College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China.
authors.forename: Yufang
authors.initials: Y
authors.lastname: Lu
authors.affiliation: College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China.
authors.forename: Lili
authors.initials: L
authors.lastname: Zhang
authors.affiliation: College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China.
authors.forename: Tian
authors.initials: T
authors.lastname: Wang
mesh_terms: D000410:Alanine Transaminase / Q000097:blood; D000821:Animal Feed; D000818:Animals; D031172:Artemisia annua; D001219:Aspartate Aminotransferases / Q000097:blood; D002645:Chickens / Q000097:blood / Q000254:growth & development*; D003345:Corticosterone / Q000097:blood; D004032:Diet / Q000662:veterinary*; D004435:Eating; D018882:Heat Stress Disorders / Q000517:prevention & control / Q000662:veterinary*; D018869:Heat-Shock Response / Q000502:physiology*; D008297:Male; D008315:Malondialdehyde / Q000097:blood; D008460:Meat; D011201:Poultry Diseases / Q000517:prevention & control*; D013482:Superoxide Dismutase / Q000097:blood; D013974:Thyroxine / Q000097:blood; D014284:Triiodothyronine / Q000097:blood; D015430:Weight Gain
chemical_list: D014284:Triiodothyronine; D008315:Malondialdehyde; D013482:Superoxide Dismutase; D001219:Aspartate Aminotransferases; D000410:Alanine Transaminase; D013974:Thyroxine; D003345:Corticosterone
keywords: antioxidant capacity; broiler; enzymatically treated Artemisia annua L.; heat stress; hormone