Growth-stimulating polypeptides for use in fish and crustaceans

The present invention is related with polypeptides which show an increased activity compared with tilapia growth hormone. These polypeptides are able to stimulate growth, survival and the quality of fish and crustaceans larvae. Also, they increase the defences against pathogens and stimulate paramet...

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Bibliographische Detailangaben
Hauptverfasser:	YAMILA CARPIO GONZALEZ, JANNEL ACOSTA ALBA, REYNOLD MORALES FERNANDEZ, MARIO PABLO ESTRADA GARCIA
Format:	Patent
Sprache:	eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE FODDER FOODS OR FOODSTUFFS HUMAN NECESSITIES METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING ORGANIC CHEMISTRY PEPTIDES SPIRITS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES VINEGAR WINE
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Beschreibung
Zusammenfassung:	The present invention is related with polypeptides which show an increased activity compared with tilapia growth hormone. These polypeptides are able to stimulate growth, survival and the quality of fish and crustaceans larvae. Also, they increase the defences against pathogens and stimulate parameters related with the immune system of aquatic organisms. The polypeptides encoding genes were cloned into a Pichia pastoris expression vector. This vector allows the extracellular expression of the target proteins. The culture supernatants which contain the target polypeptides were administrated by immersion baths or as a feed additive to aquatic organisms.