Since their introduction almost a decade ago, long-laying hens have opened new opportunities for productivity and sustainability in egg production.
However, some producers remain hesitant to adjust management practices for a longer-than-100-week flock lifespan. One of the most important shifts is learning how to meet longer-laying birds’ nutritional needs. Without the right nutrition plan, these birds may fail to reach their genetic potential, under-delivering on the 500 eggs in 100 weeks that producers should expect from a layer longevity program.
More productive layers need a different plan
Traditional three-phase laying nutritional models (pre-peak/peak/post-peak) were designed around an 80‑week lifespan with nutrition dropping off at 70 weeks. Long-laying hens, however, are bred to produce continually for longer than 100 weeks — roughly 65% longer — with no need for molting. Their productivity can remain at more than 90% for up to 60 weeks. Even as productivity tapers at longer than 100 weeks, it often stays at economically viable levels of 80–85% without loss of eggshell quality.
Maintaining this level of performance requires nutritional support beyond what a short-cycle program delivers. If key nutrients such as amino acids, vitamins and minerals drop off too soon, long-laying hens will enter a maintenance phase, drawing on reserves and directing energy toward survival rather than productivity. This can result in reduced egg weight and shell quality, molting and even a pause in laying.
A more dynamic nutritional model
Supporting an extended production cycle isn’t just about supplying nutrition for longer but also in a way that’s more flexible and responsive to the hen’s lifecycle. To support layer longevity, it’s more useful to think of layer phase nutrition in five phases rather than the standard three: (1) transition to lay, (2) pre-peak, (3) peak, (4) extended peak and (5) persistency.
A model like this allows for more specific timing of key nutrients at vital developmental times. For example, in the transition and pre-peak phases, nutrition is focused on fueling the hen for work with attention paid to factors such as reproductive organ development and fat deposition. In the peak phase, nutrients provide regenerative fuel for the productive hen, while at extended peak, strategies are used to help maintain eggshell quality. To keep the hen productive in the persistency phase, strategies can include lysine building which is vital to the work of amino acids and helps support feather cover, promotes shell quality and protects ovarian health.
Producers and nutritionists can further align nutrition by leveraging advanced data-driven tools and feed advice services. Technologies include near-infrared feed analysis, central databases that support the functioning of feed formulation software, sustainability tracking and predictive modeling based on factors such as body weight, egg mass and feed intake.
The longevity model also changes the nutritional graph. In a short-cycle model, nutrients follow a typical bell curve — sharp rise, short peak, sharp decline. In a layer longevity model, nutrition plateaus at a relatively high level through week 60, then declines gradually as support continues during persistency.
Long-layer support for long-term success
Moving to a flexible, extensible model that accounts for the demands of long production cycles can help these breeds achieve more of their potential. In turn, producers can achieve more, enjoying the economic and environmental benefits a layer longevity program offers.
