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Table 2 Mean percentage of embryonic stages and embryogram classification of Dirofilaria immitis (HW) specimens recovered from 3 out of 210 wolves in northwest Italy

From: Dirofilaria immitis in wolves recolonizing northern Italy: are wolves competent hosts?

Positive wolf

Age class

Embryogram classification (HW females)

SM (%)

PR (%)

DE (%)

PL (%)

Wolf 1

Adult

Normal

14.6

20.4

26.2

38.8

Discontinuous gradient

49.0

0

11.3

39.7

Wolf 2

Adult

Normal

8.7

28.8

28.1

34.4

Normal

9.2

32.9

31.2

26.7

Normal

34.4

28.0

30.6

7.0

Normal

35.0

24.5

32.2

8.3

Wolf 3a

Subadult

Non-gravid

0

0

0

100

Non-gravid

0

0

0

100

Non-gravid

0

0

0

100

  1. aNo adult male HW were present in this wolf
  2. Abbreviations: SM, stretched microfilaria; PR, pretzel; DE, developed embryo; PL, pre-larvae