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Table 1 Breed, age, stage of lactation and other findings in 1982 cows with LDA, RDA and AV

From: Left and right displaced abomasum and abomasal volvulus: comparison of clinical, laboratory and ultrasonographic findings in 1982 dairy cows

Variable

Finding

LDA

RDA

AV

Total

Chi2

Additional tests

P

Age (n = 1982)

Mean/median

4.7/4.6a

4.8/4.4ab

4.4/4.0c

4.7/4.4

NA

KW, BoCo

 < 0.05

 

SD (25–75th pc)

1.9 (3.0–6.0)

2.1(3.3–5.8)

1.8 (3.0–5.2)

1.9 (3.0–6.0)

   

Breed (n = 1982)

Holstein

806a (60.1%)

181b (53.6%)

168ab (55.4%)

1155 (58.3%)

36**

Boph

 < 0.05

 

Swiss Fleckvieh

433 (32.3%)

104 (30.8%)

102 (33.7%)

639 (32.2%)

   
 

Brown Swiss

71a (5.3%)

49b (14.5%)

26c (8.6%)

146 (7.4%)

   
 

Other

31 (2.3%)

4 (1.2%)

7 (2.3%)

42 (2.1%)

   

Stage of lactation (n = 1750)

Weeks 1 and 2

628a (50.7%)

155a (57.8%)

95b (38.9%)

878 (50.2%)

33**

Boph

 < 0.05

 

Weeks 3 and 4

405a (32.7%)

66b (24.6%)

77ab (31.6%)

548 (31.3%)

   
 

 > 4 weeks

205a (16.6%)

47a (17.5%)

72b (29.5%)

324 (18.5%)

   

Gestation stage (n = 1960)

Open or less than 5 weeks

1234a (92.6%)

265b (79.1%)

231b (78.8%)

1730 (88.3%)

82**

Boph

 < 0.05

 

2–7 months

62a (4.7%)

42b (12.5%)

46b (15.7%)

150 (7.7%)

   
 

8–9 months

36a (2.7%)

28b (8.4%)

16b (5.5%)

80 (4.1%)

   

Duration of illness

Mean/median

4.5/3.0a

3.0/2.0b

2.8/2.0b

3.9/3.0

NA

KW, BoCo

 < 0.05

(days) (n = 1450)

SD (25–75th pc)

3.7 (2.0–7.0)

2.5 (1.0–3.0)

2.1 (1.0–4.0)

3.4 (2.0–5.0)

   
  1. KW Kruskal Wallis test, BoCo Bonferroni correction, Boph bonferroni post hoc test, pc percentiles, NA not applicable,
  2. **P < 0.01, within rows, values with different superscripts differ (P < 0.05)