Welfare considerations in caviar production from farmed sturgeon and the development of more humane extraction methods.
Sturgeon caviar welfare has two primary dimensions: the welfare of fish during the long growing period before harvest, and the method of egg extraction. Traditional kill-harvest methods cause unnecessary suffering when humane milking alternatives exist. Stripping — a technique that extracts mature eggs without killing the fish — is practiced by some producers and represents a significant welfare improvement. Farmed sturgeon welfare during the rearing period depends on stocking density, water quality, and minimizing handling stress during the many years before maturity.