Table 3 Protein metabolism - parameters.

f _p , f _t

Flux of amino acids post degradation process

0.75, 0.25

[23, 60]

T _opt

Optimal operation temperature

12°C

[12]

ϑ _s

Effect of temperature on protein synthesis rate

1/16

[13]

ϑ _d

Parabolic temperature-degradation constant

0.013/°C²

[15]

b _d

Minimum degradation rate factor in f _d

0.052

[13]

ψ

Genetically determined efficiency of rate of protein degradation

0.2 ~0.85

assumed

Concentrations of EAA in the pool

μ mol/g

[61]

p _c

Protein buildup capacity constant

0.185

[35]

c _d

Effect of EAA on protein degradation

2

assumed

V _ps

Gain on the protein buildup capacity. Estimated from large scale experiments and simulations, not a sensitive parameter [62]

10

estimated

V _pd

Gain on the protein degradation. Estimated from simulations of nitrogen excretion and Comparison with data [34]

10

Estimated