Table 3.

ANCOVA summary demonstrating the effects of dietary nutrient ratio on protein nitrogen and trehalose levels (mg per insect) in fifth instar Manduca sexta larvae maintained over the fourth and fifth stadia on a chemically defined artificial diet having varying ratios of casein and sucrose

Dependent variabled.f.Mean squareF valueProbability
Protein nitrogen (mg per insect)
Dietary ratio52150.757243.21<0.0001
Final mass (covariate)12266.988045.54<0.0001
Error2049.7771
Trehalose (mg per insect)
Dietary ratio52536.619248.35<0.0001
Final mass (covariate)1450.28638.58=0.0080
Error2152.4661
  • Final mass (g) was the covariate.