Method of efficiently constructing transgenic birds and transgenic birds thus obtained

摘要

The present invention relates to G₀ transgenic chimeric birds capable of transmitting a desired gene or gene arrangement to offspring with very high efficiency and to a method of producing the same, and relates to G₀ transgenic chimeric birds having a desired gene or gene arrangement in germ cells with very high efficiency and to a method of producing the same. ;A G₀ transgenic chimeric bird ;which comprises a G₀ transgenic chimeric bird resulting from gene transduction using a replication-defective retrovirus vector and that the efficiency of transgene transmission to G₁ is not less than 10%.