CHILLED STORAGE OF RAINBOW TROUT, Oncorhynchus mykiss, EGGS

Abstract

Unfertilized eggs of rainbow trout, Oncorhynchus mykiss, were refrigerated (1°C) in a single layer, in a moistened oxygen atmosphere. Batches of eggs were inseminated with milt every two days. Fertilization success in fresh, non-stored eggs was 84.0±3.3% of eyed eggs. Fertilization rate of stored eggs did not significantly decrease until the 8th day of storage.Arapid decrease in egg viability was observed between the 12th (67.6±1.1%) and 16th day of storage (19.6±1.7%); after 24 days of storage egg survival to eyed-egg stage was 0.9±0.1%.