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Comparison of different forms of dietary selenium supplementation on growth performance, meat quality, selenium deposition, and antioxidant property in broilers.
MedLine Citation:
PMID:  20838922     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
This study was conducted to investigate the effects of different sources of dietary selenium (Se) supplementation on growth performance, meat quality, Se deposition, and antioxidant property in broilers. A total of 600 one-day-old Ross 308 broilers with an average body weight (BW) of 44.30 ± 0.49 g were randomly allotted to three treatments, each of which included five replicates of 40 birds. These three groups received the same basal diet containing 0.04 mg Se/kg, supplemented with 0.15 mg Se/kg from sodium selenite (SS) or from L: -selenomethionine (L: -Se-methionine (Met)) or from D: -selenomethionine (D: -Se-Met). The experiment lasted 42 days. Both Se source and time significantly influenced (p < 0.01) drip loss of breast muscle. Supplementation with L: -Se-Met and D: -Se-Met were more effective (p < 0.05) in decreasing drip loss than SS. Besides, the pH value of breast muscle was also significantly influenced (p < 0.05) by time. The SS-supplemented diet increased more (p < 0.05) liver, kidney, and pancreas glutathione peroxidase (GSH-Px) activities than the D: -Se-Met-supplemented diet. In addition, L: -Se-Met increased more (p < 0.01) liver and pancreas GSH-Px activities than D: -Se-Met. The antioxidant status was greatly improved in broilers of L: -Se-Met-treated group in comparison with the SS-treated group and was illuminated by the increased glutathione (GSH) concentration in serum, liver, and breast muscle (p < 0.05); superoxide dismutase (SOD) activity in liver (p < 0.01); total antioxidant capability (T-AOC) in kidney, pancreas, and breast muscle (p < 0.05) and decreased malondialdehyde (MDA) concentration in kidney and breast muscle (p < 0.05) of broilers. Besides, supplementation with D: -Se-Met was more effective (p < 0.01) in increasing serum GSH concentration and decreasing breast muscle MDA concentration than SS. L: -Selenomethionine supplementation significantly increased GSH concentration in liver and breast muscle (p < 0.05); SOD activity in liver (p < 0.01); and T-AOC in liver, pancreas, and breast muscle (p < 0.05) of broilers, compared with broilers fed D: -Se-Met diet. The addition of L: -Se-Met and D: -Se-Met increased (p < 0.01) Se concentration in serum and different organs studied of broilers in comparision with broilers fed SS diet. Therefore, dietary L: -Se-Met and D: -Se-Met supplementation could improve antioxidant capability and Se deposition in serum and tissues and reduce drip loss of breast muscle in broilers compared with SS. Besides, L: -Se-Met is more effective than D: -Se-Met in improving antioxidant status in broilers.
Authors:
Yongxia Wang; Xiuan Zhan; Xiwen Zhang; Rujuan Wu; Dong Yuan
Publication Detail:
Type:  Journal Article     Date:  2010-09-14
Journal Detail:
Title:  Biological trace element research     Volume:  143     ISSN:  1559-0720     ISO Abbreviation:  Biol Trace Elem Res     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-09-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7911509     Medline TA:  Biol Trace Elem Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  261-73     Citation Subset:  IM    
Affiliation:
Feed Science Institute, College of Animal Science, Zhejiang University, No. 164, Qiutao North Road, Hangzhou, 310029, People's Republic of China.
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