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Embryonic mortality in pubertal gilts

Creator:: Archibong, Anthony Effanga
Abstract:: An experiment was conducted to compare the reproductive performance and serum concentrations of progesterone and estrogen of mated first (n=18) and third (n=18) estrous gilts slaughtered in equal numbers on days 3, 15 and 30 postmating. Fertilization rate did not differ between mated first and third estrous gilts. Embryonic survival...
Resource Type:: Dissertation
Full Text:: Embryonic mortality in pubertal gilts AN ABSTRACT OF THE

Physiological alterations following severe hypoxic stress in two species of fresh-water fish

Creator:: Heath, Alan G.
Abstract:: Bluegill sunfish, Lepomia macrochirus, and cutthroat trout, Salmo clarki, were exposed to a rapidly declining oxygen tension for a period of time sufficient to just cause loss of equilibrium in the fish. During recovery from the stress, measurements of oxygen uptake, blood lactic acid, blood glucose, liver glycogen, muscle glycogen,...
Resource Type:: Dissertation

Osmotic and ionic regulation in a freshwater teleost, Ictalurus nebulosus (Ie sueur)

Creator:: Walker, Lester Eugene
Abstract:: Aspects of hydromineral balance in the stenohaline fresh-water catfish, Ictalurus nebulosus (Le Sueur) were studied at 10° and 20°C. Temperature did not affect water content significantly. Water content was 78 ml/100 g body weight, 32% of which is in muscle and 49% in the skeleton and associated connective tissue. The...
Resource Type:: Dissertation

Host susceptibility, histopathologic, and transmission studies on Ceratomyxa shasta, a Myxosporidan parasite of salmonid fish

Creator:: Johnson, Keith A. (Keith Alan), 1945-
Resource Type:: Dissertation
Full Text:: mortality and a short mean time to death characterized sal- monids with high susceptibility to the disease

An evaluation in rainbow trout of biliary excretion of sulfobromophthalein and effects of biliary excretion on the toxicity of rotenone

Creator:: Schmidt, Dana C.
Abstract:: Biliary excretion has been of considerable interest in mammals but has not been extensively studied in fish. To understand the significance of biliary excretion in rainbow trout (Salmo gairdneri), two studies were conducted. The objective of the initial study was to evaluate the ability of rainbow trout to excrete a...
Resource Type:: Dissertation

The life history of Nectobrachia indivisa Fraser, 1920 (Copepoda : Lernaeopodoida) a parasite of the starry flounder

Creator:: Wilkes, Stanley Northrup
Abstract:: The stages in the life history of the parasitic copepod Nectobrachia indivisa Fraser, 1920, have been described. The adult female lives permanently attached to the gills of the starry flounder, Platichthys stellatus (Pallas, 1811) Girard, 1854. The adult male is a dwarf, which usually lives attached to the genital process...
Resource Type:: Dissertation

Biological studies on the hemoflagellates of Oregon marine fishes and their potential leech vectors

Creator:: Burreson, Eugene Michael
Abstract:: Of 2,122 marine fishes belonging to 36 species collected in the vicinity of Newport, Oregon, 541 belonging to 8 species were infected with hemoflagellates. Four species of trypanosomes and three species of cryptobias were found in offshore fishes, but no hemoflagellates were observed in fishes from Yaquina Bay. Trypanosoma pacifica...
Resource Type:: Dissertation

Deletion mapping and expression of the large genomic segment of infectious pancreatic necrosis virus

Creator:: Manning, Donald Scott
Resource Type:: Dissertation
Full Text:: antigens used for vaccination trial 138 33. Preliminary vaccine trial: cumulative percent mortality over

Studies on the genital systems and reproduction in the chimaeroid fish Hydrolagus colliei

Creator:: Stanley, Hugh Palmerlee
Resource Type:: Dissertation

Evaluating the Efficacy of Predicting Bycatch Mortality Using Reflex Impairment through an Assessment of Crab Discards

Creator:: Yochum, Noëlle
Abstract:: All animals that interact with fishing gear are not necessarily captured, and all animals that are captured are not necessarily retained. Fishing practices and gear configuration, management regulations, and markets dictate which animals ultimately are retained or discarded. The impact of a fishery and the efficacy of management regulations can...
Resource Type:: Dissertation
Full Text:: . Title: Evaluating the Efficacy of Predicting Bycatch Mortality Using Reflex Impairment through an

ScholarsArchive@OSU

Embryonic mortality in pubertal gilts

Physiological alterations following severe hypoxic stress in two species of fresh-water fish

Osmotic and ionic regulation in a freshwater teleost, Ictalurus nebulosus (Ie sueur)

Host susceptibility, histopathologic, and transmission studies on Ceratomyxa shasta, a Myxosporidan parasite of salmonid fish

An evaluation in rainbow trout of biliary excretion of sulfobromophthalein and effects of biliary excretion on the toxicity of rotenone

The life history of Nectobrachia indivisa Fraser, 1920 (Copepoda : Lernaeopodoida) a parasite of the starry flounder

Biological studies on the hemoflagellates of Oregon marine fishes and their potential leech vectors

Deletion mapping and expression of the large genomic segment of infectious pancreatic necrosis virus

Studies on the genital systems and reproduction in the chimaeroid fish Hydrolagus colliei

Evaluating the Efficacy of Predicting Bycatch Mortality Using Reflex Impairment through an Assessment of Crab Discards

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