Patent ID: 6748900
Filing Date: 2004-06-15
Classification: A01K,A23K,C07K

Abstract:
A method of imprinting fish in freshwater with at least one odorant for said fish and causing the imprinted fish to react to said odorant in seawater, wherein the fish are maintained in freshwater prior to transfer to seawater, comprising:a. adding at least one Polyvalent Cation Sensing Receptor (PVCR) modulator to the freshwater in an amount sufficient to modulate expression and/or sensitivity of at least one PVCR, said PVCR modulator being one which alters olfactory sensing of the fish to the odorant; b. adding feed for fish consumption to the freshwater, said feed containing said odorant and an amount of NaCl sufficient to contribute to a significantly increased level of said PVCR modulator in serum of the fish upon consumption of the feed, whereby the fish are imprinted with the odorant; c. transferring the imprinted fish to seawater, and d. providing a source of said odorant in the seawater to which the imprinted fish are transferred, thereby causing the imprinted fish to react to said odorant.