02877cam a2200445I 4500011574349MiAaHDL20250726000000.0m d cr bn ---auaua100217s1962 dcua bt f000 0 eng d(MiU)990115743490106381sdr-miu.990115743490106381(MiU)MIU01000000000000011574349-goog(OCoLC)518080851(MiU)Aleph011574349LHLLHLOKURRFWSUtOrBLWFWSAI 49.26:61Clemens, Howard P.(Howard Paul),1923-2007.http://id.loc.gov/authorities/names/no2006052833http://id.loc.gov/rwo/agents/no2006052833http://viaf.org/viaf/16977116http://isni.org/isni/0000000048251870Bioassay and use of pituitary materials to spawn warm-water fishes /Howard P. Clemens and Kermit E. Sneed.Washington, D.C. :U.S. Dept. of the Interior, Fish and Wildlife Service :U.S. G.P.O.,1962.iv, 30 p. :ill., tables ;25 cm.texttxtrdacontentunmediatednrdamediavolumencrdacarrierResearch report (U.S. Fish and Wildlife Service) ;61Research supported by the United States Department of the Interior, Fish and Wildlife Service.Includes bibliographical references (p. 29-30).Use of pituitary materials.Bioassay of pituitary materials.Introduction.Abstract.No detrimental effects of pituitary injections have been detected in incubating and hatching the eggs, or in rearing the fingerlings, from over 200 channel catfish spawns and thousands of goldfish spawns.Actvity of pituitaries collected in various months did not vary as much as the individual variations in physical condition of the test fish. The data indicate that all the pituitaries are active in the months in which collections were made. Activity in relation to size, sex, and degree of gonadal development of the donor fish does not appear as important as implied by some previous reports in the literature.By bioassay, evaluation was made of the activity and relative potency of pituitaries collected throughout the year from various species of fish. Positive response was indicated by ovulation of eggs or by increases in seminal plasma.Mode of access: Internet.FishesSpawning.http://id.loc.gov/authorities/subjects/sh85048806Pituitary extract.http://id.loc.gov/authorities/subjects/sh85102526Pituitary gland.http://id.loc.gov/authorities/subjects/sh85102519Biological assayBiological assay.Sneed, Kermit E.U.S. Fish and Wildlife Service.http://id.loc.gov/authorities/names/n79006435http://id.loc.gov/rwo/agents/n790064353901508657906001157434920241218031342.020250726000000.020260308140655.02026-03-09T07:59:16Z2026-02-28T18:30:02ZSDR-MIUmiuALMAprepare.pl-004-009BKsdr-miu.990115743490106381MiUSDRGWLA011574349mdp.39015086579060MIU990115743490106381MIUGWLA20260309googlemdp.390150865790601962pdbibUS fed doc