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Table 14 The effect of dietary SID-Lys:ME ratio on plasma metabolic hormones of mixed parity sows (Exp. 2)

From: The effect of the ratio of standardized ileal digestible lysine to metabolizable energy on growth performance, blood metabolites and hormones of lactating sows

Item

SID-Lys:ME ratio, g/Mcal

 

P-value

 

2.1

2.4

2.7

3.0

3.3

SEM

Treat

Linear

Quadratic

Insulin, μIU/mL

18.55

18.42

18.68

19.49

18.93

0.47

0.55

0.23

0.86

Insulin-like growth factor-1, ng/mL

185.4b

185.0b

192.5ab

200.4a

198.4a

4.32

0.02

< 0.01

0.86

Estradiol, pg/mL

23.69b

24.44b

27.91a

28.18a

28.29a

1.17

< 0.01

< 0.01

0.25

Luteinizing hormone, mIU/mL

6.11b

6.13b

6.46ab

7.52a

7.42a

0.41

0.02

< 0.01

0.74

Follicle-stimulating hormone, mIU/mL

10.69

10.61

11.29

11.21

11.23

0.51

0.81

0.30

0.78

  1. a, bWithin a row, values with no common superscript differ significantly (P < 0.05)