title: Arginine affects appetite via nitric oxide in ducks.
abstract: The objective of the study was to investigate the mechanism by which arginine regulates feed intake in Pekin ducks. In experiment 1, one hundred forty-four 1-d-old male Pekin ducks were randomly allotted to 3 dietary treatments with 6 replicate pens of 8 birds per pen. Birds in each group were fed a corn-corn gluten meal diet containing 0.65, 0.95, and 1.45% arginine. Ducks fed the diet containing 0.65% arginine had lower feed intake and plasma nitric oxide level (P < 0.05) than the other 2 groups. In experiment 2, twenty 11-d-old ducks were allotted to 1 of 2 treatments. After 2 h fasting, birds in the 2 groups were intraperitoneally administrated saline and l-NG-nitro-arginine methyl ester HCl (L-NAME) for 3 d, respectively. Feed intake (P < 0.07) and plasma nitric oxide concentration (P < 0.05) 2 h postinjection in the L-NAME administered group were lower than those of the control group. In conclusion, the study implied that arginine modifies feeding behavior possibly through controlling endogenous synthesis of nitric oxide in Pekin ducks.
authors.affiliation: Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, People's Republic of China Chongqing Academy of Animal Sciences, Chongqing, 402460, People's Republic of China.
authors.forename: C
authors.initials: C
authors.lastname: Wang
authors.affiliation: Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, People's Republic of China.
authors.forename: S S
authors.initials: SS
authors.lastname: Hou
authors.affiliation: Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, People's Republic of China.
authors.forename: W
authors.initials: W
authors.lastname: Huang
authors.affiliation: Tropical Crops Genetic Resources Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, 571737, Hainan, People's Republic of China.
authors.forename: T S
authors.initials: TS
authors.lastname: Xu
authors.affiliation: Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, People's Republic of China.
authors.forename: G H
authors.initials: GH
authors.lastname: Rong
authors.affiliation: Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, People's Republic of China xieming01@caas.cn.
authors.forename: M
authors.initials: M
authors.lastname: Xie
mesh_terms: D000821:Animal Feed / Q000032:analysis; D000818:Animals; D001066:Appetite / Q000187:drug effects*; D001120:Arginine / Q000494:pharmacology*; D004032:Diet / Q000662:veterinary*; D004305:Dose-Response Relationship, Drug; D004372:Ducks / Q000502:physiology*; D005247:Feeding Behavior / Q000187:drug effects*; D008297:Male; D019331:NG-Nitroarginine Methyl Ester / Q000378:metabolism*; D009569:Nitric Oxide / Q000096:biosynthesis / Q000097:blood*; D011897:Random Allocation
chemical_list: D009569:Nitric Oxide; D001120:Arginine; D019331:NG-Nitroarginine Methyl Ester
keywords: appetite; arginine; duck; nitric oxide