Show simple item record

dc.contributor.advisorPeatman, Eric
dc.contributor.authorMazzola, James
dc.date.accessioned2017-04-17T14:07:07Z
dc.date.available2017-04-17T14:07:07Z
dc.date.issued2017-04-17
dc.identifier.urihttp://hdl.handle.net/10415/5615
dc.description.abstractPhytic acid is a well-known antinutritional factor and readily binds to di and trivalent ions reducing their bioavailability and thus absorption by the animal. Phytic acid levels in catfish diets have risen along with inclusion percentages of certain ingredients such as wheat middlings. While some of these ingredients contain phytase, the concentration of phytic acid may still inhibit mineral absorption. Accordingly, the impact of phytase superdosing (2500 FTU/kg) in a commercially available catfish diet was evaluated in channel catfish (Ictalurus punctatus) and hybrid catfish (channel x blue) fingerlings at the USDA-ARS in Stuttgart, AR and Auburn University. Catfish fed phytase-supplemented diets had higher mineral levels (including iron) in serum and liver along with improved hematocrit, hemoglobin, and red blood cell values. Weight gain and feed conversion ratios were also significantly improved in the 15-week replicated pond studies.en_US
dc.subjectFisheries and Allied Aquaculturesen_US
dc.titleFortification of commercial catfish rations with superdoses of phytase enzymes increases hematological parameters and mineral stores in channel catfish (Ictalurus punctatus) and hybrid catfish (Ictalurus punctatus x Ictalurus furcatus)en_US
dc.typeMaster's Thesisen_US
dc.embargo.lengthen_US
dc.embargo.statusNOT_EMBARGOEDen_US
dc.contributor.committeeBeck, Benjamin
dc.contributor.committeeDavis, Donald
dc.contributor.committeeChappell, Jesse


Files in this item

Show simple item record