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Table 5 Values of threshold parameters

From: Model-based exploration of the impact of glucose metabolism on the estrous cycle dynamics in dairy cows

Symbol

Value

Unit

Explanation

T1

0.5

g/L

Threshold of glucose in the blood to stimulate insulin secretion

T2

0.5

g/L

Threshold of glucose in the blood to inhibit glucagon secretion

T3

0.45

g/L

Threshold of glucose in the blood to stimulate the absorption of glucose into liver cells

T4

10

L

Threshold of milk to inhibit glycogenesis

T5

10

L

Threshold of milk to inhibit lipogenesis

T6

1000

g

Threshold of glygogen store to stimulate lipogenesis

T7

10

g

Threshold of glycogen store to stimulate glycogenolysis

T8

10

g

Threshold of glycogen store to stimulate gluconeogenesis

T9

150

kg

Threshold of fat to stimulate gluconeogenesis

T10

0.5

g/L

Threshold of glucose in the blood to stimulate non-mammary utilization

T11

0.3

[P4]

Threshold of P4 to inhibit IGF-1 synthesis

T12

15

mU/L

Threshold of insulin to stimulate IGF-1 synthesis

T13

0.171

[LH]

Threshold of LH to stimulate decrease of the follicular function

T14

0.5

[IGF]

Threshold of IGF-1 to stimulate the responsiveness of follicles to LH

T15

15

mU/L

Threshold of insulin to stimulate FSH synthesis

T16

16

mU/L

Threshold of insulin to stimulate LH synthesis