Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2002-6-4
pubmed:abstractText
An understanding of digestibility in marine fish larvae is required to formulate a diet to replace zooplankton. Using flounder, this study was aimed at determining which digestive enzymes are synthesized in the larval pancreas, and how the proteins are cleaved in the digestive canal. Whole mount in situ hybridization indicated that the mRNA of all digestive enzyme precursors examined, including trypsin, chymotrypsin, elastase, carboxypeptidase A and B, and lipase, was expressed in the pancreas of first feeding larvae at 3 days post-fertilization. In the larvae before differentiation of the stomach, protein digestion in the digestive canal mainly depends on pancreatic proteases. So, to evaluate protein digestibility in the larval digestive canal, the digestion of proteins by pancreatic extract was monitored by gel electrophoresis. It was indicated that thyroglobulin, albumin and lactate dehydrogenase were rapidly cleaved to polypeptide fragments, but ferritin and catalase exerted resistance to proteolysis, suggesting that digestibility in the larval digestive canal differs depending on protein species.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1095-6433
pubmed:author
pubmed:issnType
Print
pubmed:volume
132
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
629-35
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
mRNA expression of pancreatic enzyme precursors and estimation of protein digestibility in first feeding larvae of the Japanese flounder, Paralichthys olivaceus.
pubmed:affiliation
Metabolism Section, National Research Institute of Aquaculture, Fisheries Research Agency, Nansei, Mie 516-0193, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't