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UNF Graduate Theses and Dissertations
Thesis; University of North Florida; UNF; Dissertations; Academic -- UNF -- Master of Science in Biology; Dissertations; Academic -- UNF -- Biology; Homarus americanus; Litopenaeus setiferus; L-leucine; L-histidine; glycylsarcosine; calcium; co-transport; transepithelial; PepT-1; dipeptide; molecular mimicry; Feed additives -- Physiological effect; Amino acids -- Physiological transport; Peptides -- Physiological transport; American lobster -- Digestive organs; Penaeus setiferus -- Digestive organs; Calcium -- Physiological effect
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Full-Text Articles in Marine Biology
Effect Of Feed Additives On Amino Acid And Dipeptide Transport By Intestines Of American Lobster And Atlantic White Shrimp, Maria Louise Peterson
Effect Of Feed Additives On Amino Acid And Dipeptide Transport By Intestines Of American Lobster And Atlantic White Shrimp, Maria Louise Peterson
UNF Graduate Theses and Dissertations
Previous nutritional physiology research using L-histidine and zinc in American lobster intestine (Homarus americanus) has suggested that these solutes can be co-transported as complexes (Histidine-Zinc-Histidine) across the intestine using a peptide transporter. Furthermore, transport of L-leucine was shown to be inhibited by high calcium concentrations. Dipeptide and bis-complex transport and the role of calcium were investigated in the perfused intestines of lobster and Atlantic white shrimp (Litopenaeus setiferus). Following trans-intestinal transport, serosal medium was analyzed for amino acid composition by gas chromatography. In lobster, the transport of glycylsarcosine (Gly-Sar) from mucosa to serosa was stimulated two-fold …