Milt
The fluid of sperm that male fish release over the eggs during spawning; also eaten as soft roe.
Also: soft roe
Milt is the seminal fluid of male fish. In species that spawn in open water, males release it over or near the eggs as the female lays them. In hatcheries, eggs and milt are stripped by gently pressing the belly and mixed in a dish. Milt of cod, herring and other fish is eaten in parts of Europe and Japan, where cod milt is called shirako. Frozen milt is stored in gene banks to keep the genetics of rare fish such as mahseer and sturgeon.