Table 3 Descriptive statistics of sow stayability and removal reason according to first parity litter size

Number of sows

38,878

4096

2244

3380

4520

5587

5514

4906

3747

2403

2481

Percentage of sows having ≥4 litters

59.6

56.4

60.2

61.5

61.8

62.1

60.7

59.7

57.2

58.6

54.5

Percentage of sows having a second litter

84.1

81.7

85.5

85.4

84.2

84.7

84.9

84.4

84.0

84.2

81.7

Number of sows

37,914

4024

2203

3326

4444

5447

5371

4760

3635

2313

2391

Percentage of sows being euthanized at farm

6.6

5.4

5.1

5.4

6.1

6.8

6.6

7.4

7.5

7.8

8.7

Reproductive disorders^a

22.4

23.8

22.1

22.5

23.2

21.5

21.6

22.4

21.7

22.8

23.8

Low productivity^a

7.9

11.2

8.3

7.2

6.9

7.7

7.3

7.4

7.6

8.0

7.8

Udder problems^a

17.2

15.5

15.5

16.6

17.2

16.4

17.2

18.0

18.2

18.7

19.0

Lameness and/or foot lesions^a

12.9

10.8

11.5

11.7

12.8

12.8

13.0

13.7

13.9

13.8

15.1

Traumatic injuries^a

2.5

2.4

2.3

2.2

2.2

2.8

2.4

2.3

3.1

3.1

2.6

Inferior body condition^a

2.3

2.5

2.7

2.0

2.3

2.5

2.5

1.9

2.5

2.3

2.4

Found dead^a

4.3

4.6

4.5

4.0

4.0

4.6

4.5

4.6

4.0

3.9

3.8

Old age^a

17.5

16.7

20.6

19.8

19.1

18.5

18.2

16.9

16.2

14.3

12.0

Miscellaneous^a

13.0

12.5

12.5

14.0

12.3

13.2

13.3

12.8

12.8

13.1

13.5