Scientists are working on identification of genes resistant to diseases like pathogenic bird flu to implant these into poultry but it may take six to seven years before it is fully developed. ”It is going to take at least 6 to 7 years for developing totally disease resistant chicken. As of now we have initiated efforts for its which would take about three years and then these genes would be transferred into developing disease resistant chicken which may again take couple of years,” a senior scientist of UP-based Central Avian Research Institute told PTI. [...] Kumar, who was here to participate in a symposium on Poultry Production, said adding we could focus on transferring these genes into high producing chickens.