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Table 6 Mortality rates per line during three successive challenges.

From: Can selection for resistance to OsHV-1 infection modify susceptibility to Vibrio aestuarianus infection in Crassostrea gigas? First insights from experimental challenges using primary and successive exposures

  AS AC BS BC
Initial number of oysters 160 153 165 155
Mean mortality of sets 1 to 3 of trial 3 (Feb to Mar 2013) (%) 14 71 33 80
Mortality between trial 3 and the first set of trial 4 (%) 74 90 32 97
First set of trial 4 in Mar 2014 (%) 46 40 28 100
Mortality between the two sets of trial 4 (%) <5 <5 <5
Second set of trial 4 in Nov 2014 (%) 60 0 38
Final oysters number remaining after three successive challenges 6 1 26 0
Cumulated mortality after three successive challenges (%) 96 99 84 100
  1. Cumulative mortality by cohabitation between oysters injected with V. aestuarianus and the control (AC and BC) and selected lines (AS and BS) are shown from sets 1, 2, and 3 of trial 3 and sets 1 and 2 of trial 4
  2. In italics, the number of oysters was less than 5