title: Acute satiety response of mammalian, avian and fish proteins in dogs.
abstract: Fish proteins have been reported to be more satiating than meat proteins. The objective was to determine the effect of different animal protein pre-meals on satiety. A total of ten intact female hounds were fed pork loin, beef loin, chicken breast, salmon fillet or pollock fillet. Each pre-meal was fed to contain 100 g protein. Blood was collected at 0, 5, 15, 30, 60, 90 and 120 min postprandially and analysed for glucose, insulin, total ghrelin, active glucagon-like peptide-1 (GLP-1) and plasma amino acids (AA). Dogs were fed 2 ×  metabolisable energy, 3 h following the pre-meal, and intake was determined 30, 60, 180 and 1440 min after food presentation. Glucose decreased over time (P < 0·001), but was lowest (P = 0·01) when dogs consumed pollock or chicken. Insulin increased (P < 0·0001) over time, and was greater (P = 0·09) when dogs consumed salmon. GLP-1 increased (P < 0·001) over time, and was greatest (P = 0·04) when dogs consumed beef. Ghrelin decreased (P < 0·0001) over time for all pre-meals. The tryptophan:large neutral AA ratio tended to be greater (P = 0·08) when dogs consumed pork, salmon and pollock. Different protein sources may influence blood markers in dogs, but it does not appear that fish substrates have different satiating abilities than mammalian or avian sources.
authors: Department of Animal Sciences, University of Illinois, Urbana, IL 61801, USA.
authors: Brittany M
authors: BM
authors: Vester Boler
authors: Trevor A
authors: TA
authors: Faber
authors: Laura L
authors: LL
authors: Bauer
authors: Kelly S
authors: KS
authors: Swanson
authors: Scott
authors: S
authors: Smiley
authors: Peter J
authors: PJ
authors: Bechtel
authors: George C
authors: GC
authors: Fahey
mesh_terms: D000596:Amino Acids / Q000097:blood; D000818:Animals; D030161:Avian Proteins / Q000008:administration & dosage* / Q000627:therapeutic use; D015415:Biomarkers / Q000097:blood; D001786:Blood Glucose / Q000032:analysis; D004044:Dietary Proteins / Q000008:administration & dosage* / Q000627:therapeutic use; D004285:Dogs; D005260:Female; D029941:Fish Proteins / Q000008:administration & dosage* / Q000627:therapeutic use; D005399:Fishes / Q000378:metabolism; D054439:Ghrelin / Q000097:blood; D052216:Glucagon-Like Peptide 1 / Q000097:blood; D007328:Insulin / Q000097:blood; D008460:Meat; D018482:Muscle, Skeletal; D009765:Obesity / Q000178:diet therapy; D011897:Random Allocation; D012528:Satiety Response; D017747:Seafood; D013997:Time Factors
chemical_list: D000596:Amino Acids; D030161:Avian Proteins; D015415:Biomarkers; D001786:Blood Glucose; D004044:Dietary Proteins; D029941:Fish Proteins; D054439:Ghrelin; D007328:Insulin; D052216:Glucagon-Like Peptide 1