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Acute satiety response of mammalian, avian and fish proteins in dogs

Vester Boler, Brittany M.; Faber, Trevor A.; Bauer, Laura L.; Swanson, Kelly S.; Smiley, Scott; Bechtel, Peter J.; Fahey, George C. Jr

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PMID: 21733332


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 x 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

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