A recent British Egg Industry Council derogation to the Lion Code of Practice allowing AviPro Salmonella Duo to be used as an in-lay vaccination has been welcomed as a significant development for UK egg producers. According to Elanco, the move responds to changing flock management practices, with laying cycles becoming longer and flock performance continuing to improve. Joshua Davison and Jeremy Marsh of Elanco said: “For some time, the sector has recognised that as laying cycles become longer and flock performance continues to improve, vaccination programmes need to evolve alongside them.” The updated authorisation means AviPro Salmonella Duo, previously administered…