| dc.description.abstract | This study was done to discover the effect of addition of chromosome number on phenotype F1 hybrid of females kohaku (white-red) and sanke (white-red-black) koi with males white and red koi. The white and red males koi were the F1 of gynogenesis. Spawning of koi was done by hormonal (ovaprim 0,5 ml/kg body weight) and fertilization was done artificially. Triploidization was done by heat shock at 40C during 1,0-1,5 minutes after 2-3 minute from egg fertilization. Colour analysis was done on 4 months old fish. Triplodization was succeeding on 86,67%. Addition of chromosome number on koi due to triploidization was suppressed the percentage of koi with combination color (kohaku, shiro-bekko, hi-utsuri, and sanke). It was seen on hybridization of sanke vs white koi as much as 5,55%, while on sanke vs red koi reached 45,02%. Hybridization of kohaku vs white koi as well as kohaku vs red koi produced higher percentages of kohaku compared to kohaku vs kohaku. | en |
