Research Article

Dietary Fish Meal Level and a Package of Choline, β-Glucan, and Nucleotides Modulate Gut Function, Microbiota, and Health in Atlantic Salmon (Salmo salar, L.)

Figure 18

Relationship between diet choline level and relative weight (%) of PI (PISI), average sum of histological scores (Normal =1, Mild =2, Moderate =3, Marked =4, Severe =5), and total plasma choline level (mM) as indicated by the polynomes best fitting the observations. Visual examination of the trend line for the histoscores indicates an average choline requirement of about 3200 mg/kg, based on the PISI and histological scores, and about 3000 mg/kg based on the plasma choline levels.