Enzymatic Reduction of Methemoglobin to Hemoglobin in Blue CatfishIctaburus furcatus,and Channel Catfish,I. punctatus,♀ x Blue Catfish ♂ Hybrids

Autor:	Roland E. Reagan, Douglas G. Drennan
Rok vydání:	1994
Předmět:	chemistry.chemical_classification Ecology biology Aquatic Science Reductase biology.organism_classification Methemoglobin Fishery chemistry.chemical_compound Enzyme chemistry Ictalurus Hemoglobin Food science Nitrite Blue catfish Catfish
Zdroj:	Journal of Applied Aquaculture. 3:223-234
ISSN:	1545-0805 1045-4438
DOI:	10.1300/j028v03n03_02
Popis:	Blue catfish, "Ictalurus furcatus," and channel catfish, "I. punctatus," (strain unknown) ♀ X Rio Grande strain blue catfish ♂ hybrids (HRG), and channel catfish (the same unknown strain) ♀ X Tombigbee blue catfish ♂ (HTB) were exposed to 0, 5, 10, and 20 mg/L nitrite to determine percent methemoglobin and enzymatic activity of NADH-methemoglobin reductase. Channel catfish of an unknown strain were exposed to 0 and 20 mg/L nitrite and compared to blue catfish, HRG catfish, and HTB catfish. Percent methemoglobin increased with increasing nitrite concentration for all groups of fish. Percent methemoglobin at 5 mg/L nitrite in blue catfish was significantly lower (P < 0.05) than those of HRG catfish or HTB catfish. Channel catfish had significantly (P < 0.05) higher NADH-methemoglobin reductase than blue catfish, HRG catfish, and HTB catfish. At all the levels of nitrite, there was no significant difference between blue catfish, or HTB catfish for NADH=MH-b reductase.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f9069fe1e111d0d9ca88357285a6a9de https://doi.org/10.1300/j028v03n03_02 Zobrazit plný text záznamu