title: Effects of dietary supplementation of fulvic acid on lipid metabolism of finishing pigs.
abstract: The experiment was conducted to investigate the effects of dietary supplementation of fulvic acid on lipid metabolism of finishing pigs. One hundred eighty crossbred barrows (Landrace × Yorkshire, 60 ± 2.5 kg) were randomly allotted to 5 dietary treatments (36 pigs/treatment) and fed a basal diet supplemented with 0, 0.2%, 0.4%, 0.6%, and 0.8% fulvic acid for 42 d. Thirty pigs (6 pigs/treatment) were slaughtered at the end of the experiment. Blood samples and adipose tissue were collected for determination of blood parameters and lipid metabolic enzymes. The results showed that compared with the control group, dietary supplementation of 0.2%, 0.4%, and 0.6% fulvic acid significantly reduced mean backfat thickness of pigs (P < 0.05). The serum concentrations of low-density lipoprotein, leptin, growth hormone, insulin, and triiodothyronine were significantly increased by adding fulvic acid in diets (P < 0.05). With the raised concentration of dietary fulvic acid, hormone sensitive lipase (HSL) activity was significantly increased (P < 0.05), and lipoprotein lipase (LPL) activity was significantly decreased (P < 0.05) in adipose tissue. In conclusion, dietary supplementation of fulvic acid reduced the mean backfat thickness of pigs. This change related to the increased activity of HSL and the decreased activity of LPL in adipose tissue.
authors.affiliation: Institute of Animal Nutrition, Northeast Agricultural University, Mucai street No.59, Xiangfang District, Harbin 150030, China.
authors.forename: Q
authors.initials: Q
authors.lastname: Chang
authors.affiliation: Institute of Animal Nutrition, Northeast Agricultural University, Mucai street No.59, Xiangfang District, Harbin 150030, China.
authors.forename: Z
authors.initials: Z
authors.lastname: Lu
authors.affiliation: Institute of Animal Nutrition, Northeast Agricultural University, Mucai street No.59, Xiangfang District, Harbin 150030, China.
authors.forename: M
authors.initials: M
authors.lastname: He
authors.affiliation: Institute of Animal Nutrition, Northeast Agricultural University, Mucai street No.59, Xiangfang District, Harbin 150030, China.
authors.forename: R
authors.initials: R
authors.lastname: Gao
authors.affiliation: Institute of Animal Nutrition, Northeast Agricultural University, Mucai street No.59, Xiangfang District, Harbin 150030, China.
authors.forename: H
authors.initials: H
authors.lastname: Bai
authors.affiliation: Institute of Animal Nutrition, Northeast Agricultural University, Mucai street No.59, Xiangfang District, Harbin 150030, China.
authors.forename: B
authors.initials: B
authors.lastname: Shi
authors.affiliation: Institute of Animal Nutrition, Northeast Agricultural University, Mucai street No.59, Xiangfang District, Harbin 150030, China asshan@neau.edu.cn.
authors.forename: A
authors.initials: A
authors.lastname: Shan
mesh_terms: D000273:Adipose Tissue / Q000201:enzymology; D000818:Animals; D001578:Benzopyrans / Q000008:administration & dosage / Q000494:pharmacology*; D001823:Body Composition / Q000187:drug effects* / Q000502:physiology; D019587:Dietary Supplements; D013006:Growth Hormone / Q000097:blood; D007328:Insulin / Q000097:blood; D020738:Leptin / Q000097:blood; D008049:Lipase / Q000378:metabolism; D050356:Lipid Metabolism / Q000187:drug effects* / Q000502:physiology; D008297:Male; D013552:Swine / Q000378:metabolism*; D014284:Triiodothyronine / Q000097:blood
chemical_list: D001578:Benzopyrans; D007328:Insulin; D020738:Leptin; D014284:Triiodothyronine; D013006:Growth Hormone; D008049:Lipase; C005023:fulvic acid
keywords: blood parameter; finishing pig; fulvic acid; hormone; lipid metabolism