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Table 3 Peripartum feed intake, backfat and postweaning reproductive performance of sows fed peripartum diets

From: Effect of spray-dried porcine plasma in peripartum sow feed on subsequent litter size

  

Peripartum diet, % SDPPb

 

Statistics (F-test, P =)c

Variable

Groupa

0

0.5

2.5

SEM

PR

D

L

Q

INT

Sows, n

All

147

167

138

–

–

–

–

–

–

Y

94

111

90

–

–

–

–

–

–

M

53

56

48

–

–

–

–

–

–

Entry to farrow days

All

5.95

6.42

6.11

0.19

0.03

0.17

0.97

0.06

0.03

Y

5.46

6.02

6.29

0.25

0.31

0.05

0.04

0.19

0.24

M

6.43

6.89

5.93

0.30

0.39

0.03

0.06

0.10

0.18

Total days diets fed

All

10.95

11.42

11.11

0.19

0.03

0.17

0.97

0.06

0.03

Y

10.46

11.02

11.29

0.25

0.31

0.05

0.04

0.19

0.24

M

11.43

11.89

10.93

0.30

0.39

0.03

0.06

0.10

0.18

Feed intake, kg/dd

All

3.77

3.76

3.77

0.09

<  0.01

0.67

0.70

0.42

0.25

Y

3.76

3.75

3.76

0.10

0.24

0.32

0.56

0.17

0.14

M

3.68

3.64

3.70

0.02

0.45

0.02

0.09

0.06

0.14

Entry backfat, mm

All

13.91

13.38

13.46

0.30

0.67

0.37

0.46

0.23

0.16

Y

13.53

13.75

13.23

0.35

<  0.01

0.55

0.39

0.51

0.22

M

13.39

13.04

13.62

0.60

0.09

0.71

0.61

0.56

0.39

Wean backfat, mme

All

10.33

9.82

10.26

0.24

<  0.01

0.23

0.74

0.09

0.24

Y

9.43

9.51

9.50

0.30

<  0.01

0.97

0.89

0.84

0.16

M

10.65

10.17

10.89

0.53

0.38

0.49

0.50

0.37

0.58

Backfat loss, mme

All

−3.73

−3.56

−3.36

0.31

<  0.01

0.48

0.25

0.73

0.86

Y

−4.04

−4.02

−3.67

0.37

0.04

0.57

0.29

0.88

0.48

M

−2.79

−2.95

−2.78

0.44

0.10

0.91

0.88

0.71

0.51

Sows to breeding, %

All

94.4

92.8

97.8

2.05

0.23

0.20

0.12

0.37

0.69

Y

92.6

92.8

95.6

2.60

0.76

0.65

0.36

0.90

0.34

M

97.3

93.8

100.0

3.55

0.88

0.32

0.34

0.32

0.87

Wean-to-first-estrus, d

All

8.63

8.65

8.96

0.64

0.92

0.92

0.68

0.96

0.36

Y

8.47

8.04

9.59

0.84

0.15

0.38

0.22

0.53

0.26

M

9.83

8.96

8.51

0.98

0.23

0.59

0.34

0.59

0.03

Wean-to-final-service, d

All

11.43

10.97

10.69

1.00

0.88

0.87

0.64

0.80

0.76

Y

10.77

10.84

11.14

1.27

0.23

0.98

0.82

0.99

0.03

M

12.63

10.86

10.02

1.73

0.53

0.51

0.30

0.53

0.52

  1. a Results for group All included data of all sows, group Y included data only for young (parity 1 and parity 2) sows and group M included data only for mature sows (parity 3 to 8)
  2. b Values are least squares means (LSM) and the pooled standard error of the mean (SEM) for peripartum diets by sow group
  3. c Each sow group was analyzed using a mixed model for the effects of PR (sow parity), D (peripartum diet), L (linear contrast of % SDPP in diet), Q (quadratic contrast of % SDPP in diet) and INT (interaction of parity and diet)
  4. d Included the covariance of total days the peripartum diet was fed in the mixed model for the All and Y sow group
  5. e Included the covariance of days from entry to weaning in the mixed model
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Porcine Health Management

ISSN: 2055-5660

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