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What is the importance of selective breeding for the increase in productivity in the aquaculture industry?

In the last 35 years this genetic progress has contributed to:

• A reduction in production time from smolt to harvest size from 24 to 14 months
• More efficient use of feed in that less feed is used per kilo meat produced
• Higher survival rate, for example, resistance to the viral disease infectious pancreatic necrosis (IPN) has increased
• Better filet quality in the areas of fat and color

In addition improved operational routines, more knowledge and experience in different areas, and development of vaccines for example, have also contributed to the positive results.

It is well documented that at least 40 % of the collective increase in productivity in the production of poultry, beef, pork, and salmon can be attributed to genetic progress through selective breeding.

Breeding stair: a step is a generation interval (4 years), the rise is the progress generated by the selection.