The key to future-proof layer nutrition

Sustainable egg production has to deliver on multiple fronts at once: reliable egg quality, robust animal welfare and a lower environmental footprint while keeping farms economically viable. Alternative feed additives are increasingly used to support this balancing act. Read how a phytogenic feed additive such as Anta^®Phyt can help stabilise gut health and immune function, reduce pathogen pressure and support more consistent egg quality, day-to-day reliability and resource efficiency in layer production.

Four dimensions that shape modern egg production

When society asks for food security and affordable animal protein, “more” is rarely enough. What matters here is quality and consistency: clean eggs, stable egg shell stability and fewer defects that create losses and extra labour. At the same time, production needs to cut emissions and use nutrients efficiently, because greenhouse gases and resource use are now part of what defines “successful” farming. Finally, animal welfare and economic viability are tightly linked. A flock that copes better with stress and health challenges often requires fewer interventions and tends to stay productive for longer, supporting a long production life-span.

Egg production in practice: securing quality and reducing daily effort

In practice, egg quality is not a single trait. It includes external quality (such as egg shell stability and fewer cracked eggs) and internal quality (which can be affected when animals are under health or stress pressure). Dirty eggs matter because they raise hygiene risks and increase sorting, cleaning and rejection rates. This can mean higher labour costs, reduced saleable yield and avoidable losses. Keeping egg quality stable therefore supports both food security and economic viability at farm level.

Animal welfare and stress physiology: why behaviour and gut function matter

Animal welfare is not only about comfort. It can show up directly in behaviour and performance. Abnormal behaviour (for example feather picking or cannibalism) can reflect underlying stress physiology, meaning the body’s hormonal and metabolic response to challenges such as heat stress, management changes or pathogen pressure. The gut-brain axis, the two-way signalling between the digestive tract and the nervous system, helps explain why stress and gut function often move together.

When hens lose feathers, their maintenance needs increase because they spend more energy on body temperature control and tissue repair. That energy is no longer available for production and resilience. Environmental stressors such as heat stress can amplify this effect by reducing nutrient intake and shifting nutrient supply away from productive functions. This is also where feed efficiency becomes part of sustainability: better feed conversion (FCR), meaning less feed required per unit of output, supports efficient feed utilisation and can contribute to lower emissions per egg, while also improving the economics of production.

Why antibiotic reduction is driving a shift towards alternative additives

Global trade and export markets shape practical decisions on farms. As countries expand agricultural exports, the pressure to meet target-market expectations rises, including the handling of antibiotics. Brazil’s value of agricultural exports, for example, increased by around 10 percent annually since 2002 (USDA, 2022). As export-oriented systems grow, antibiotic reduction becomes both a regulatory and market requirement, and antibiotic resistances remain a central long-term risk. This makes an antibiotic-free solution in routine production an important goal where feasible.

Alternative feed additives are used to support this direction by helping animals cope with challenges that would otherwise increase medication pressure. The aim is not a single “fix”, but more stable health and performance under real-world stressors.

How a phytogenic feed additive can support gut health stability

Phytogenic additives are plant-derived compounds used in animal nutrition to support physiological functions. Anta^®Phyt is a phytogenic feed additive based on a blend of highly active plant-derived compounds (plant bioactives), often referred to as secondary plant metabolites, such as polyphenols and other bioactive compound classes.

The practical target is gut health stability. The gut microbiota, the community of microorganisms living in the intestine, helps shape digestion, immune readiness and resilience. Dysbiosis, a disrupted microbial balance, can reduce digestibility, weaken the intestinal barrier and increase the risk that opportunistic bacteria gain ground. The intestinal barrier is the protective lining of the gut that controls nutrient absorption while limiting the passage of pathogens and inflammatory triggers. When this barrier is compromised, animals may show a higher sensitivity to pathogen pressure and inflammation-related setbacks.

This is why digestive function links so closely to egg outcomes. A disrupted gut can lead to more dirty eggs, poorer bone quality, reduced external and internal egg quality and lower performance. These effects are consistent with lower nutrient absorption, meaning the animal takes up fewer usable nutrients from the same feed, and less efficient nutrient utilisation, which can show up as poorer feed conversion (FCR) over time.

A common way to track the impact of gut challenges is to watch practical indicators that farmers recognise immediately: litter quality, the share of dirty eggs, changes in shell stability and visible shifts in flock behaviour. While these indicators are not diagnostic on their own, they can help identify when gut function and stress load are moving in an unfavourable direction.

What the mode of action means in day-to-day production

As described by Ayalew et al. (2022), plant-based alternatives can support gut health and immune function and may contribute to more stable performance. In practical terms, the mode of action described for phytogenic additives centres on several linked functions:

Supporting digestion and digestibility, which can improve nutrient supply and help maintain nutrient intake during challenging periods.
Stabilising the intestinal barrier, which may indicate better control over pathogen pressure in the gut environment.
Reducing pathogens and supporting immune system support, which is consistent with fewer health-related disruptions.
Supporting resilience and behaviour, especially when stress physiology is challenged by factors such as heat stress, stocking density, re-housing or transportation.

What matters here is careful interpretation. When egg quality becomes more consistent and fewer eggs show quality defects, this can reduce labour, rejections and losses. When nutrient utilisation is more efficient, this can support feed efficiency and therefore the economic viability of production. And when medication needs decrease, farms have more room to follow antibiotic reduction strategies without compromising welfare.

These effects should be read as technically plausible implications of improved digestive stability rather than as guaranteed outcomes in every setting. Real-world results depend on diet composition, management, housing conditions, weather conditions, genetic factors and the specific regulation and market context.

Putting it together: a cautious, practical perspective

Future-proof layer nutrition operates in a tight field of competing demands: society, environment, animal welfare and economic viability. Alternative feed additives such as Anta^®Phyt offer a practical nutritional approach to support gut health stability, which can influence immune function, resilience and behaviour through the gut-brain axis and the intestinal barrier. When gut disruption is reduced, the pattern is consistent with fewer dirty eggs, fewer quality defects and more stable day-to-day production outcomes. This supports both product quality and more resource-efficient production, aligning with goals such as lower emissions intensity and antibiotic reduction without overstating causality.