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![A male carp receives pituitary material which stimulates him in producingadditional quantities of milt for use in freezing experiments the followingmorning fizh1915.jpg A male carp receives pituitary material which stimulates him in producingadditional quantities of milt for use in freezing experiments the followingmorning](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_fizh1915.jpg?itok=1Yf7Gw0F)
Description
A male carp receives pituitary material which stimulates him in producingadditional quantities of milt for use in freezing experiments the followingmorning. (Image credit: NOAA Central Library Historical Fisheries Collection)
Credit
NOAA Central Library Historical Fisheries Collection
Collection
Historic Fisheries