Short-term selection response was assessed based on the hybrid performance of the selected heterotic pattern.
Selective breeding for increased growth in Atlantic salmon can result in a 15% selection response per generation (Gjeren and Bentsen 1997; Martinez et al. 2013).
Results suggest that selection response for survival at harvesting in the presence of WSSV would be very small, and that selection response for body weight in the same condition would be smaller than in the absence of WSSV.
Ridderinkhof, K. R., V D Wildenberg, W. P., Segalowitz, S. J. & Carter, C. S. Neurocognitive mechanisms of cognitive control: the role of prefrontal cortex in action selection, response inhibition, performance monitoring, and reward-based learning.
The use of only width in the selection index would result in 8.5% lower selection response than the use of body weight.
However, in terms of the selection response, the two designs are equivalent when genetic trend was below 0.5σa, which is always the case in animal breeding programs.
However, selection response to longer SEP with similar cycle to AT could not be found, possibly as the result of a high environmental influence on this attribute.
Heterotic groups of around 14 individuals reflect a good compromise between long-term and short-term selection response.
This group size was also related to an acceptable level of short-term selection gain; thus, representing a good compromise between short- and long-term selection response.
In the selection response experiment, a small and apparently inbred, laboratory stock of Canton-S.
Changes in behaviour, size and other morphometric characters are potentially linked to the sexually antagonistic selection response.
