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Table 10 The effect of dietary SID-Lys:ME ratio on litter size (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

   

SID-Lys:ME ratio, g/Mcal

 

P-value

Item

Parity

No.

2.1

2.4

2.7

3.0

3.3

Mean13

SEM

Treat

Linear

Quadratic

No. piglets suckling

1

31

10.43

10.67

10.67

10.71

10.60

10.61

0.27

0.95

--

--

 

2

32

10.83

10.14

10.83

10.83

11.14

10.75

0.39

0.44

--

--

 

3+

87

11.12

10.94

10.72

10.94

10.78

10.90

0.23

0.78

--

--

 

Total

150

10.98

10.77

10.78

10.92

10.85

10.86

0.17

0.89

--

--

No. piglets weaned1

1

31

9.02

9.17

9.32

8.98

9.42

9.24x

0.21

0.62

0.36

0.94

 

2

32

9.35

9.56

9.27

9.24

9.56

9.42xy

0.30

0.77

0.25

0.10

 

3+

87

9.18b

9.52ab

9.58ab

9.89a

9.64a

9.53y

0.19

0.08

0.14

0.32

 

Total2

150

9.28

9.44

9.45

9.58

9.64

9.48

0.14

0.28

0.03

0.99

Mortality, %1

1

31

14.68

13.24

11.83

15.35

10.97

14.17x

2.66

0.59

0.84

0.55

 

2

32

12.41

10.55

13.04

13.96

11.36

12.50xy

2.56

0.82

0.62

0.49

 

3+

87

15.32b

11.73ab

11.79ab

9.19a

11.37a

11.48y

1.78

0.09

0.03

0.12

 

Total2

150

13.56

11.92

12.12

11.31

10.78

11.94

1.29

0.44

0.09

0.51

  1. 1Number of piglets suckling and lactation length were used as a covariate in the analysis
  2. 2Parity effect was included in the model
  3. 3Parity effect and treatment effect was included in the model
  4. a, bWithin a row, values with no common superscript differ significantly (P < 0.05)
  5. x, yWithin a column, values with no common superscript differ significantly (P < 0.05).