How genetic advances are driving longer-laying, more efficient hens  Genetic improvement remains at the heart of progress in poultry production, with breeding companies focused on traits that enhance layer persistency, egg numbers and quality. According to Lohmann GB production director John Hodgkinson, developing the ideal modern layer depends not only on genetic expertise and experience, but also on accurately anticipating future market demands. “Our geneticists are highly skilled and look at indicators from market trends to see where breeding should be going,” said Hodgkinson, speaking to producers and the industry at Cargill Poultry workshops. “But there’s always an element of…