Premium
Effects of dietary supplementation with tribasic zinc sulfate or zinc sulfate on growth performance, zinc content and expression of zinc transporters in young pigs
Author(s) -
Deng Bo,
Zhou Xihong,
Wu Jie,
Long Ciming,
Yao Yajun,
Peng Hongxing,
Wan Dan,
Wu Xin
Publication year - 2017
Publication title -
animal science journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.606
H-Index - 38
eISSN - 1740-0929
pISSN - 1344-3941
DOI - 10.1111/asj.12788
Subject(s) - zinc , chemistry , jejunum , zoology , duodenum , transporter , superoxide dismutase , feces , dmt1 , endocrinology , medicine , biochemistry , biology , antioxidant , microbiology and biotechnology , gene , organic chemistry
An experiment was conducted to compare the effects of zinc sulfate ( ZS ) and tribasic zinc sulfate ( TBZ ) as sources of supplemental zinc on growth performance, serum zinc (Zn) content and messenger RNA (mRNA) expression of Zn transporters (ZnT1/ZnT2/ZnT5/ ZIP 4/ DMT 1) of young growing pigs. A total of 96 Duroc × Landrace × Yorkshire pigs were randomly allotted to two treatments and were fed a basal diet supplemented with 100 mg/kg Zn from either ZS or TBZ for 28 days. Feed : gain ratio in pigs fed TBZ were lower ( P < 0.05) than pigs fed ZS , and average daily weight gain tended to increase (0.05 ≤ P ≤ 0.10) in pigs fed TBZ . Compared with pigs fed ZS , pigs fed TBZ had a higher CuZn‐superoxide dismutase and Zn content in serum ( P < 0.05) while they had a lower Zn content in feces ( P < 0.05). In addition, ZIP 4 mRNA expression of zinc transporter in either duodenum or jejunum of pigs fed TBZ were higher ( P < 0.05) than pigs fed ZS . These results indicate that TBZ is more effective in serum Zn accumulation and intestinal Zn absorption, and might be a potential substitute for ZS in young growing pigs.