Mycobacteria in Adult Salmonid Fishes Returning to National Fish Hatcheries in Washington, Oregon, and California in 1958-59

Mycobacteria in Adult Salmonid Fishes Returning to National Fish Hatcheries in Washington, Oregon, and California in 1958-59 PDF

Author: A. John Ross

Publisher:

Published: 1963

Total Pages: 12

ISBN-13:

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Incidence of acid-fast bacillus infections in salmonid fishes at West Coast hatcheries was determined for 1957-59. No evidence was obtained which would indicate a definite trend towards either increased or decreased rates of infection. It is apparent that the incidence of infection is higher in hatchery-marked fish than in unmarked fish. Only one hatchery was found free of infection during the 3 years covered by the investigation. This installation had never used raw salmon products in diet.