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Table 3 Details of dams that died of BSE within 100 days of final lambing.

From: Dynamics of the natural transmission of bovine spongiform encephalopathy within an intensively managed sheep flock

ID

Offspring

Time intervals

Lymphoreticular system involvement

Dpi AL

ST

Diff.

RphLN

PTon

Spleen

MsnLN

PrsLN

DIle

LRS

S1

P

621

664

43

2

2.5

2

2

1.5

2.5

12.5

S2

P and N

623

677

54

3

2

1.5

1

0.5

2.5

10.5

S3

P and N

623

664

41

2.5

2

2

1.5

2

2

12.0

S5

P

496

570

74

2

2

2

2

2

2

12.0

R2

P

709

800

91

0.5

1.5

2

0.5

0.5

2.5

7.5

R5

P

703

706

3

2

3

2

0.5

0.5

2

10.0

R7

P and P

862

911

49

2.5

3

2

1

1.5

2.5

12.5

C1

P and N

1941

2026

85

3

1.5

1

0

1.5

2

9.0

Total

9/12

Mean ± SD

55 ± 28.4

    

Mean ± SD

10.8 ± 1.8

S4

N and N

983

1034

51

0.2

0.5

1.5

0

0.2

0.2

2.6

R1

N

706

786

80

2

2.5

2

0.5

0.5

2

9.5

R3

N

704

755

51

2

2.5

2

0

0.5

2.5

9.5

R4

N

705

766

61

0.5

3

2

1

2

3

11.5

R6

N

704

756

52

2

2

2.5

0.5

1

1.5

9.0

R8

N

861

871

10

1.5

1.5

1

1

1

1.5

7.5

R9

N

658

730

72

0.5

1

3

0.5

0.2

2

7.2

C2

N and N

1564

1663

99

0

0

1.5

0

0

0

1.5

Total

0/10

Mean ± SD

60 ± 26.2

    

Mean ± SD

7.4 ± 3.5

  1. SD, standard deviation; ID, sheep identification; S, ARQ suffolk; R, ARQ romney; C, VRQ Cheviot; P, BSE positive; N, BSE negative; Dpi AL, days post-oral challenge at lambing; ST, survival time; Diff., days difference between ST and Dpi AL; RphLN, medial retropharyngeal lymph node; PTon, palatine tonsil; MsnLN, mesenteric LN; PrsLN, prescapular LN; DIle, distal ileum (Peyer’s patches); LRS, sum of lymphoreticular system tissue scores
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Veterinary Research

ISSN: 1297-9716