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Table 2 Litter characteristics at parturition from sows in the 6 groups

From: Vaccination of sows against type 2 Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) before artificial insemination protects against type 2 PRRSV challenge but does not protect against type 1 PRRSV challenge in late gestation

Group ( n)a

Gestation

Litter characteristics

 

n

Average lengthb(cm)

Length rangeb(cm)

1 (5)

106-109

Live-born

3

29.4

29.0-30.1

  

Stillborn

45

28.8

28.1-29.6

  

Mummified

1

14.1

13.4-16.3

2 (5)

Term

Live-born

49

30.5

30.1-32.4

  

Stillborn

2

29.2

29.0-29.4

  

Mummified

-

-

-

3 (5)

102-107

Live-born

5

28.9

28.6-29.4

  

Stillborn

42

27.9

27.1-28.5

  

Mummified

-

-

-

4 (5)

103-108

Live-born

7

27.9

27.6-29.1

  

Stillborn

41

27.3

27.1-27.7

  

Mummified

-

-

-

5 (3)

Term

Live-born

26

31.3

30.8-32.1

  

Stillborn

1

29.5

29.5

  

Mummified

-

-

-

6 (3)

Term

Live-born

29

31.6

30.3-32.1

  

Stillborn

-

-

-

  

Mummified

-

-

-

  1. an, number of sows in group.
  2. bEstimation of fetal death based on crown-to-rump length.
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Veterinary Research

ISSN: 1297-9716