Abstract:
:This study was conducted to investigate the effect of zinc chitosan chelate (CS-Zn) on zinc transporter expression and content of tissue zinc in weaned piglets. A total of 90 weaned pigs (Duroc × Landrace × Yorkshire) were randomly allocated to treatment groups with supplementation of 100 mg/kg zinc as ZnSO4, 100 mg/kg zinc as mixture of ZnSO4 and chitosan, or 100 mg/kg zinc as CS-Zn, respectively. After 30 days of trial, 18 piglets (six pigs per treatment) were killed and the samples of duodenal mucosa were taken for analysis of zinc transporter mRNA expressions and protein abundance. The results show that CS-Zn more effectively increases (p < 0.05) the average daily gain (ADG) and serum zinc concentration. Zinc concentration in the liver and kidney did not differ between treatments. The mRNA expressions of ZnT1, ZIP4, and ZIP5 in CS-Zn treatment were all upregulated (p < 0.05) than ZnSO4 or mixture of ZnSO4 and chitosan groups. ZnT1 abundance was greater (p < 0.05) with CS-Zn as compared with ZnSO4 and mixture of ZnSO4 and chitosan treatments, whereas ZIP4 and ZIP5 abundance was higher (p < 0.05) in ZnSO4 group. The results indicate that CS-Zn is more effective in serum zinc accumulation, and it might regulate zinc homeostasis by affecting zinc transporter mRNA expression and absorption mechanism might be different with ZnSO4.
journal_name
Biol Trace Elem Resjournal_title
Biological trace element researchauthors
Lv M,Fu X,Hu L,Yue X,Han Xdoi
10.1007/s12011-016-0732-1subject
Has Abstractpub_date
2016-12-01 00:00:00pages
328-334issue
2eissn
0163-4984issn
1559-0720pii
10.1007/s12011-016-0732-1journal_volume
174pub_type
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