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Table 1 Immunization and challenge

From: Recombinant proteins from Gallibacterium anatis induces partial protection against heterologous challenge in egg-laying hens

Protein Challenge strain No. of birds (day 0/35)a
GtxA-C 7990 20/19
GtxA-N   20/19
FlfA   20/17
Placebo   20/17
GtxA-C IPDH 697-78 20/20
GtxA-N   20/20
FlfA   20/20
Placebo   20/15
GtxA-C 12656-12 40/38
GtxA-N   40/39
FlfA   40/36
Placebo   40/35
  1. Immunization with one of three recombinant proteins was done at day 0 and 14, followed by challenge with a G. anatis strain at day 35.
  2. a A total of 25 birds showed feather pecking behavior and were removed from the study between day 14 and day 35, in order to prevent development cannibalism among the birds.