title: Effects of dietary selenomethionine supplementation on growth performance, meat quality and antioxidant property in yellow broilers.
abstract: This study was conducted to investigate the effects of dietary selenomethionine (Se-Met) supplementation on growth performance, meat quality and antioxidant property in male broilers. A total of 800 43-day-old Lingnan yellow male broilers were randomly allotted to 5 dietary treatments with four replicates of 40 birds for a period of 3 weeks ad libitum. Final BW and weight gain of birds significantly increased by Se-Met supplementation at the 0.225 mg/kg level (P < 0.05). The addition of Se-Met significantly decreased drip loss, lightness value, and elevated pH value of meat (p < 0.05). Adding sodium selenite (SS) only increased pH value of meat (p < 0.05). In plasma, supplemental Se-Met at 0.225 mg/kg level increased total antioxidant capability (T-AOC), glutathione peroxidase (GPX), total superoxide dismutase (T-SOD), catalase (CAT) activities, glutathione (GSH) concentration (p < 0.05), and decreased malondialdehyde production (p < 0.05), compared with the control and broilers fed SS diet. In breast muscle, the addition of Se-Met significantly elevated T-AOC, GPX, T-SOD, CAT activities, contents of metallothionein and GSH (p < 0.05), and reduced carbonyl protein content (p < 0.05). While compared with broilers fed SS diet, supplemental 0.225 mg/kg Se-Met increased T-AOC, GPX, CAT activities, and GSH content (p < 0.05). Therefore, dietary Se-Met supplementation could improve growth performance and meat quality by enhancing antioxidative capacity in broilers compared with SS.
authors.affiliation: Key Laboratory of Animal Nutrition and Feed (South China), Ministry of Agriculture of PR China, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, PR China. jiangz38@hotmail.com
authors.forename: Zongyong
authors.initials: Z
authors.lastname: Jiang
authors.forename: Yingcai
authors.initials: Y
authors.lastname: Lin
authors.forename: Guilian
authors.initials: G
authors.lastname: Zhou
authors.forename: Lihuan
authors.initials: L
authors.lastname: Luo
authors.forename: Shouqun
authors.initials: S
authors.lastname: Jiang
authors.forename: Fang
authors.initials: F
authors.lastname: Chen
mesh_terms: D000821:Animal Feed / Q000032:analysis; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D000975:Antioxidants / Q000032:analysis* / Q000378:metabolism; D002645:Chickens / Q000254:growth & development* / Q000378:metabolism*; D019587:Dietary Supplements / Q000032:analysis*; D008297:Male; D008460:Meat / Q000032:analysis*; D011897:Random Allocation; D012645:Selenomethionine / Q000008:administration & dosage / Q000378:metabolism*
chemical_list: D000975:Antioxidants; D012645:Selenomethionine