Improving sustainability of egg production by extending the laying period for hens

This chapter explores the multifaceted impact of extending laying cycles in commercially kept laying hens, revealing its significance in achieving sustainability across biological, societal, environmental, and economic dimensions. Genetic selection for prolonged laying cycles has not only realized the vision of high egg output but also contributed to animal welfare, reduced environmental footprints, and proved economically advantageous for producers. The societal impact includes a commitment to hen health and robustness traits. Environmental considerations highlight the potential of reduced environmental impact, especially in cage-free systems, as demonstrated by Life Cycle Assessment analyses. Economically, extended laying cycles positively influence total profits. From a breeding perspective, this approach aligns with global trends, urging continued investment in sustainable practices that consider societal, environmental, and economic factors.