2.4. Statistical analysis
Data were analyzed using the SPSS General Linear Models (GLM)
procedure (SPSS 7.5, Michigan Avenue, Chicago, IL, USA) for
significant differences among treatment means based on protein
level, lipid level, and the interaction of protein and lipid. If significant
(Pb0.05) differences were found in factors, Duncan's multiple range
test (Duncan, 1955) was used to rank the means. All data were
presented as means±S.E.M (standard error of the mean) of three
replications.