Relationship between dietary protein concentration and serum trypsin-like immunoreactivity in dogs.
Serum trypsinogen concentration was studied in 6 adult mixed-breed dogs randomly fed diets containing 6.8, 31.4, or 39.7% protein (dry weight) for 3 weeks each. Blood was collected on days 20, 21, and 22 of each feeding period, and serum trypsinogen concentrations were determined by radioimmunoassay of trypsin-like immunoreactivity (TLI). Mean serum TLI concentrations for each dog fed each diet were compared. A significant (P less than 0.05) positive linear relationship (P less than 0.02) was determined between serum TLI concentrations and the percentage of dietary protein. Mean serum TLI concentrations for each dog fed all diets ranged from 5.7 to 20.2 micrograms/L.
Carro
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Department of Small Animal Clinical Sciences, University of Florida, Gainesville 32610.
Williams
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DA
D000818:Animals; D004044:Dietary Proteins / Q000032:analysis* / Q000276:immunology; D004285:Dogs / Q000097:blood* / Q000276:immunology; D005260:Female; D008297:Male; D011897:Random Allocation; D014357:Trypsin / Q000097:blood / Q000276:immunology; D014362:Trypsinogen / Q000097:blood* / Q000276:immunology
D004044:Dietary Proteins; D014362:Trypsinogen; D014357:Trypsin