Beyond the Ban: Why the UK and EU’s “End of Cage Age” Reforms Risk Exporting Poor Animal Welfare

Abstract

Recent and forthcoming bans on confinement systems for farmed animals highlight the growing societal and policy emphasis on improving welfare. In the United Kingdom, the proposed prohibition of enriched cages for laying hens represents a major step beyond existing European Union standards, reflecting both scientific evidence and public concern over the limitations of cage-based systems. While such reforms are indicative of farmed animal welfare gains domestically, experience from the EU ban on conventional cages indicates a critical policy gap: the absence of mechanisms to retire and decommission obsolete infrastructure allows housing systems to be resold or exported, potentially perpetuating welfare issues elsewhere. Similar patterns have emerged in pork production, where gestation and farrowing crates have been inconsistently phased out in different regions of the world, illustrating the broader consequences of neglecting infrastructure lifecycle management. This perspective is based on welfare reforms incorporating decommissioning of equipment to align ethical intent with material outcomes. Decommissioning approaches lead to incentivising or mandating the permanent removal of banned pork production physical infrastructure, mitigating economic risks for producers, and reducing cross-border exacerbation of welfare issues. Coordinated implementation across national, regional, and global locals is essential to maximise the pig welfare effectiveness of reforms. By integrating decommissioning provisions, policymakers can ensure that animal welfare improvements are substantive, credible, and globally effective.

1. Introduction

Farm animal welfare has become a central concern in contemporary agricultural policy, reflecting evolving societal values, scientific understanding of animal sentience, and the ethical obligations of food system management [1,2,3]. Confinement systems in which there is marked restriction on the expression of natural behaviours, whether non-furnished battery cages for laying hens or farrowing crates for sows, have come under sustained scrutiny from scientists, public stakeholders, and policymakers. In poultry production, the transition away from conventional battery cages towards systems in which there is greater bird mobility and behavioural expression has been widely acknowledged as a major welfare advance [4].

However, the continuing use of so-called “enriched” cages in Europe and the evolving policy landscape in the United Kingdom (UK) have led to complex questions about the design and effectiveness of welfare reforms.

In 1999, in the European Union (EU), the adoption of Council Directive 1999/74/EC (1999) [4], which prohibited the use of unenriched battery cages for laying hens across Member States by 2012, mandated a shift either to enriched cage systems or to alternative non-cage housing such as barn, free-range, or organic systems.

This directive marked a milestone in animal welfare legislation by eliminating the most restrictive form of confinement and catalysing technological and management changes in egg production. Subsequent research findings confirmed that enriched cages, which resulted in additional space and environmental features such as perches and nesting areas, led to improved welfare metrics compared with the use of conventional cages (e.g., behavioural opportunities for nesting, perching, and scratching), although important welfare limitations remain when compared to cage-free systems [5].

As an EU member country at the time, the UK followed this trajectory through national implementation of the battery cage ban, resulting in similar standards being implemented for enriched cages and non-cage systems as part of its domestic animal welfare regulations [6].

Even though there were these advances, policy reform continues to evolve. In the UK, recent government proposals would lead to the phasing out of all forms of cages for laying hens, including enriched systems, as part of a broader initiative to enhance farm animal welfare standards and address public expectations for more humane egg production practices.

Similar developments in Europe, induced in part by citizen initiatives such as the European Citizens’ Initiative “End the Cage Age”, which received over one million signatures and prompted the European Commission commitments to propose legislation phasing out cage systems for multiple species, signal a widening policy coalition to move beyond enriched cages towards cage-free production systems [7].

While the focus of these reforms is clear, their design remains incomplete regarding an important dimension, the utility of physical infrastructure after banning through regulatory actions. There are specific requirements to discard obsolete equipment that is banned for use in egg production systems due to regulatory actions. Existing enriched cage systems retain economic value and can be marketed domestically or exported to regions where utilisation for the production of food animal products is not banned. This raises an ethical and regulatory dilemma. There is a policy that prohibits the use of a housing system within a jurisdiction, but if there is allowance of its continued utility elsewhere, this could lead to the outsourcing of equipment into areas where animal welfare is compromised due to utilisation in regions where there is no legislative regulation banning its use.

In the context of the EU battery cage ban, there were no legislative mandates for how conventional cages would be utilised, meaning many were recycled or marketed to buyers without welfare safeguards [8], a practice that has been criticised for undermining the spirit of welfare reform acts. Egg producers in Ukraine, a primary marketing country of eggs to the UK, purchased many of the recycled cages to incorporate into their production system, which led to concerns in terms of laying hen welfare, health, and safety [9]. The potential repetition of this pattern under the impending UK enriched cage ban highlights the need for a more holistic approach to welfare policy legislation. With the possibility that Ukraine could potentially join the EU in the future, these types of considerations need to occur when there are legislative actions regarding food-producing animal housing systems [10].

The central point of this article is the legislative welfare reforms that omit considerations of subsequent utility of banned equipment usage, leading to the risk of subverting ethical objectives for imposing the regulations by enabling banned welfare systems to persist elsewhere, whether within the EU or in global markets with less stringent food-producing animal welfare standards. Without mechanisms to ensure decommissioned infrastructure is not utilised elsewhere, these reforms may inadvertently contribute to a form of “welfare leakage” that leads to compromised animal welfare when progressive policies are implemented in attempts to mitigate the problem. This challenge is not unique to laying hen housing; similar dynamics are evident when there is dialogue about confinement systems for sows, such as the banned sow gestation and lactation crates, where there are no considerations when imposing these bans about transitional support and end-of-life management for equipment and housing infrastructure.

There is no single, universal “scrapping plan of action” for layer hen cages; rather, there is a complex and varying landscape of national bans and industry-led phase-outs, primarily within Europe and the US. The EU is working on bloc-wide legislation, but policies are not readily forthcoming. In several countries, there has legislation been enacted to phase out or ban the use of cages for laying hens [11]. In Germany, the use of cages for laying hens is expected to be completely prohibited after 1 January 2026, with a possible temporary suspension until 1 January 2029, in cases where transition to the legislated system is impractical. In Austria a ban on new investments in cages for hens is in effect, and all existing cage facilities must be phased out by 2030. In Czech Republic and Slovakia, the sale of eggs from caged hens will be banned after 2027. In France, there is a ban on installing hen caged systems for egg production. In Wallonia (Belgium), there is a ban on the use of caged hen systems for egg production beginning in 2028. In the UK, the government leaders have expressed a commitment to implementing a complete banning of housing hens in cages for egg production in 2026.

Economic considerations are integral to the empirical plausibility of cage phase-out policies and associated infrastructure decommissioning. Farm-level economic assessments of transitioning away from conventional and enriched cages indicate substantial capital investment requirements and potential reductions in production efficiency, which are key determinants of producer behaviour and welfare policy uptake [12]. Empirical reviews of cage-free transitions in Southeast Asia and India similarly find that cage-free systems tend to incur higher costs per unit of production, although rising consumer demand and associated price premiums can offset these costs over time, with feed and other input prices being critical drivers of economic viability [13]. Without structured compensation, producers may seek to recover residual capital value by diverting retired infrastructure into less regulated markets, thereby undermining the intended welfare gains of domestic policy. Conversely, economic modelling suggests that well-designed compensation, phased implementation, or incentive schemes can mitigate adjustment costs, align producer incentives with welfare objectives, and enhance long-term sustainability of higher-welfare systems by internalising welfare externalities within market decision-making, with recent frameworks demonstrating how welfare impacts can be monetised within cost–benefit analyses to evaluate such trade-offs [14]. Such integrated policy frameworks would also reduce the likelihood of welfare leakage via secondary equipment markets, strengthening the normative force of regulation without imposing disproportionate economic burdens on producers.

This article does not provide results from a narrow empirical study, but is a critical reflection on policy design and its wider implications. There is challenging of the current regulatory approaches in the UK and the EU, with there being a forward-looking analysis of how welfare reforms can be structured to avoid unintended consequences that undermine ethical goals. Drawing on policy history, emerging legislative developments, and the broader animal welfare discourse, the argument is presented with an emphasis on the importance of integrating hen cage scrappage regimens. There are efforts to implement a coordinated approach to effectively transition to legislatively approved hen housing systems removal, including subsequent utilisation of the cage materials in ways that there is no risk of cages being marketed into regions where there are less stringent standards for hen housing. By doing so, policymakers can more effectively align regulatory practice with societal expectations and the moral imperatives through which animal welfare legislation occurs. Also important, emerging trading problems and disputes between countries and commercial blocs can be avoided if a more global perspective of legislative actions occurs [15].

2. Policy History and Lessons from the EU Ban on Conventional Cages

2.1. The EU Ban on Conventional Laying Cages: Origins and Rationale

The prohibition of conventional battery cages for laying hens within the EU represents one of the most significant regulatory interventions in farm animal welfare to date. Council Directive 1999/74/EC, adopted in 1999 [4] and fully implemented by 2012, established minimum standards for the protection of laying hens, including the outright ban on unenriched cages and the requirement that managers of egg production enterprises transition either to enriched cage systems or to alternative non-cage housing [4]. The directive was grounded in an expanding body of scientific evidence demonstrating that conventional cages severely constrain hens’ capacity to express natural behaviours such as nesting, perching, dustbathing, and wing-flapping, leading to compromised welfare outcomes [16,17].

The legislative process that culminated in Directive 1999/74/EC [4] reflected a broader shift in the EU agricultural policy, in which animal welfare began to be treated not merely as a problematic food animal production issue but as a matter of public ethics and societal concern. This shift was supported by the work of advisory bodies such as the Scientific Veterinary Committee and, later, the European Food Safety Authority, which led to experimental and observational studies to inform policy development [16]. The directive’s phased implementation, spanning more than a decade, was designed to provide farmers with sufficient time to transition to alternative housing systems, thereby balancing welfare objectives with economic feasibility.

Although the ban was fully implemented in 2012, compliance across Member States was initially uneven. Several countries experienced delays in full enforcement due to the substantial capital investment required to replace conventional cage systems and differences in national regulatory capacity. European Commission assessments and subsequent sectoral analyses reported transitional non-compliance in several Member States, reflecting the financial and logistical constraints associated with large-scale housing conversion. These implementation disparities highlight the economic pressures faced by producers and emphasise the importance of integrating financial transition mechanisms into welfare legislation to ensure both regulatory effectiveness and industry feasibility [12,18].

From a welfare perspective, the ban on conventional cages was widely regarded as a progressive action. Subsequent evaluations suggested that enriched cages offered measurable improvements over battery cages, particularly in terms of behavioural opportunities and skeletal health [19]. However, enriched cages were also recognised as an interim solution rather than an endpoint because of substantial spatial and behavioural limitations compared with non-cage systems [20]. Importantly, while the directive led to regulation of the use of housing systems within the EU, it did not address the disposal or decommissioning of cage physical infrastructure rendered non-compliant by the revised legislative regulations.

In addition to domestic production changes, the transition towards enriched and non-cage systems has generated trade implications, as differences in production costs between EU and non-EU producers may influence competitiveness in international egg markets and potentially increase reliance on imports from jurisdictions operating under less stringent welfare standards. Studies of the EU egg sector [21] show that compliance with greater animal welfare regulations, including transitioning to enriched or cage-free systems, raises production costs relative to many third-country producers. When trade liberalisation reduces tariffs or other barriers, non-EU suppliers with lesser welfare-related costs are able to offer competitively priced products, which can affect market competitiveness and influence reliance on imports from jurisdictions with less stringent welfare standards.

2.2. Unintended Consequences: Recycling, Resale, and Export of Welfare-Poor Systems

The absence of provisions addressing the end-of-life management and subsequent utility of conventional cages was a regulatory shortfall with significant welfare implications. Once prohibited within the EU, conventional cages continued to have intrinsic economic value. These were assets that could be dismantled, remarketed, or exported to jurisdictions where food production and animal welfare standards were less stringent. Reports of industry groups, animal welfare organisations, and investigative journalism indicate that large quantities of decommissioned battery cages were marketed to producers outside the EU, particularly in parts of Eastern Europe, and in countries beyond Europe [8,12,22].

This occurrence is indicative of a broader issue in regulatory design: when reforms target practices within a specific jurisdictional region without addressing the dispersal of the cages or crates used for egg and pork production, there is the risk of displacing rather than effectively addressing the problem in an ethical way. In the case of the EU battery cage ban, welfare improvements achieved within Member States may have been partially offset by the continued use of the systems of egg and pork production elsewhere, effectively exporting the welfare problem beyond the regulatory boundary of the EU. From an ethical standpoint, this outcome was not consistent with the stated objectives of EU animal welfare policy, where there is emphasis on the intrinsic value of animals and the avoidance of unnecessary suffering in producing eggs and pork [23].

The economic logic underpinning this outcome is straightforward. For producers facing mandatory transitions, marketing of redundant equipment represented a rational strategy to recover residual value and reduce the financial burden of compliance. In the absence of incentives or obligations to dismantle or utilise the components of cages and crates for other purposes, secondary markets emerged for the use of this equipment for egg and pig meat production. Importantly, the regulatory framework did not require transparency or traceability regarding the destination or subsequent use of exported cages, limiting the capacity of policymakers to assess the full welfare footprint of the reform [24]. The lessons from this experience are highly relevant to contemporary policy debates, as it demonstrates that welfare legislation can generate unintended spillover effects when infrastructure relocation is not considered. It also highlights the tension between national or regional welfare ambitions and globalised agricultural supply chains, in which equipment, capital, and knowledge move readily across borders. Furthermore, this leads to the suggestion that incremental reforms, such as the progression from conventional to enriched cages, may delay addressing rather than resolving fundamental welfare concerns if there is no incorporation of mechanisms that inhibit the transfer of these systems into regions where regulatory banning has not occurred.

Moreover, the experience suggests that incremental reforms, such as the transition from conventional battery cages, which provide minimal environmental enrichment and severely restrict behavioural expression, to enriched cage systems, which incorporate limited welfare improvements but remain confinement-based housing, may postpone rather than resolve underlying welfare concerns if mechanisms are not implemented to prevent relocation of both superseded conventional and enriched systems into regions where comparable regulatory restrictions are absent [25].

3. The UK Ban on Enriched Cages: A New Reform Confronting an Old Problem

3.1. Policy Background and Welfare Rationale

Following its departure from the EU, the UK has positioned itself as an international leader in farm animal welfare, explicitly framing enhanced welfare standards as a public good aligned with societal expectations and ethical responsibility [26]. Within this context, proposals to prohibit the use of enriched cages for laying hens represent a significant escalation of welfare regulation beyond existing EU requirements. Enriched cages remain legal under EU law, provided these meet minimum space and furnishing standards [4]. The UK government has signalled its intention to implement housing system regulations that exclude cages altogether, favouring barn, free-range and organic production of eggs [27].

The welfare rationale underpinning this policy trajectory is supported by a substantial body of scientific literature. Although utilisation of enriched cages can lead to demonstrable welfare improvements compared with conventional battery cages, particularly in relation to nesting behaviour, perch access and a lesser incidence of severe skeletal disorders, these cages continue to constrain key behaviours that are considered highly motivated in laying hens, including full wing-flapping, foraging and dustbathing [16,19]. Results from comparative studies consistently indicate that non-cage systems allow a broader behavioural repertoire and greater environmental complexity, albeit with other management challenges related to feather pecking, disease control and environmental impact [28].

Public attitudes in the UK also have a central role in shaping the policy agenda. Findings from surveys repeatedly indicate consumer and citizen support for cage-free egg production, often extending beyond purchasing preferences to encompass expectations of regulatory intervention [29,30]. The UK reform reflects not only scientific evidence but also evolving social norms regarding acceptable forms of animal confinement in agriculture.

3.2. Structural Transition and Economic Implications for Producers

The proposed prohibition of enriched cages implies a substantial structural transition for the UK egg-production sector. Farmers utilising enriched cage systems leads to the prospect of either converting existing facilities to non-cage housing or exiting egg production altogether. Both pathways involve significant capital costs, operational adjustments and transitional risks. Investment in barn or free-range systems typically requires changes in building design, land use, labour inputs and management expertise, while returns on investment are contingent on market conditions and price premiums that may fluctuate over time [31].

From an economic perspective, enriched cages represent relatively recent capital investments for many egg producers, particularly those who upgraded facilities in response to the EU battery cage ban implemented in 2012. The accelerated obsolescence of this infrastructure has led to concerns about stranded assets and distributional impacts within the sector. While support mechanisms may mitigate some of these effects, the residual value of enriched cages remains a critical consideration for farm decision-making. In the absence of clear guidance on disposal or compensation, producers are incentivised to seek secondary markets for equipment to avoid marked economic losses.

Recent UK consultations provide indicative cost benchmarks for the transition out of enriched cages. Estimated average capital costs for converting existing enriched cage facilities to barn or free-range systems range from approximately £16–£20 per hen place when adapting existing structures, and are higher when constructing new housing [32]. Moreover, production cost estimates (excluding housing) suggest that average production costs per dozen eggs increase from around 77.8 pence in enriched cages to about 92.8 pence in free-range systems, reflecting differences in labour, feed distribution and management intensity associated with alternative systems [32]. Alongside these capital and operating cost differentials, UK Government welfare proposals include support through the Animal Health & Welfare Pathway, which provides voluntary financial assistance to eligible poultry keepers for health, welfare and productivity improvements that can facilitate transitions away from enriched ‘colony’ cages [33]. These data show that although transition costs are non-trivial, targeted transition support mechanisms exist that may mitigate economic burdens on producers.

4. Regulatory Spillovers and the Export of Welfare Problems

4.1. Legal Permissibility Versus Ethical Responsibility

A defining feature of contemporary animal welfare governance is the uneven pace of regulatory change across jurisdictional regions. Housing systems that are prohibited in one country may remain legal and commercially attractive in another. The proposed UK ban on enriched cages exemplifies this challenge. While such systems are increasingly regarded as ethically unacceptable within the UK, these systems remain fully compliant with existing EU legislation. This divergence creates a legal and moral asymmetry: practices deemed incompatible with domestic welfare standards can continue elsewhere without contravening prevailing regulations.

From a strictly legal perspective, the resale or export of enriched cages from the UK to other EU countries or countries outside the EU there are no immediate compliance issues. Yet from an ethical standpoint, this outcome is problematic. Animal welfare policy is typically justified based on reducing suffering and improving quality of life for the animals utilised for food production, not merely relocating welfare issues beyond national borders [34]. When welfare reforms fail to account for cross-border consequences, there is a risk of eroding the moral legitimacy of regulatory intervention by prioritising territorial compliance over substantive welfare outcomes.

This tension is particularly acute in the EU context, where agricultural markets and production systems are highly integrated. Equipment, breeding stock and expertise are transported, and differences in national standards can incentivise strategic behaviour that exploits regulatory gaps. Considering this scenario, welfare improvements achieved in one regulatory jurisdiction may be offset by stagnation or regression elsewhere, challenging the notion that progressive national reforms necessarily translate into broader welfare gains for hens producing the eggs.

The problem is already escalating because producers in the EU or countries beyond the EU purchase cages from UK egg producers residing in regions where the use of cages is not prohibited, as a result of regulatory standards [35].

4.2. Global Implications for Animal Welfare Standards

Beyond the EU, the export of enriched cages raises concerns about global animal welfare governance. Many countries beyond the EU lack comprehensive welfare legislation, regulatory standards, or the institutional capacity to enforce existing standards effectively. The marketing and subsequent transfer of cage systems from EU egg producers may therefore entrench intensive confinement practices that would otherwise be economically or politically untenable. In this way, progressive reforms in countries such as the UK risk contributing to a two-tier global welfare system, in which more stringent standards apply domestically while lesser standards persist elsewhere.

This outcome is difficult to reconcile with the growing emphasis on ethical consistency in food systems and international trade. Leaders in international organisations and non-governmental agencies increasingly advocate for the alignment of trade practices with welfare objectives, by advocating that animal welfare should not be treated as a purely domestic concern [36]. The continued transfer of enriched cages across borders runs counter to these aspirations, highlighting the limitations of unilateral welfare reforms in an interconnected global economy.

Moreover, the reputational implications for reforming countries should not be underestimated. There is a desire by leaders of regulatory agencies in the UK to position the UK as a global leader in animal welfare, and they are aware that this desire may be undermined if domestic reforms are perceived as displacing rather than resolving egg-producing hen welfare issues. This risk is particularly salient in the context of post-Brexit trade negotiations, where welfare standards are frequently invoked as a point of differentiation and moral leadership.

5. Beyond Laying Hens: Repeating Patterns in Pig Production Systems

5.1. Gestation Crates: A Precedent for Incomplete Reform

The regulation of sow housing provides a revealing parallel to the evolution of laying hen welfare policy. Across the EU and the UK, gestation crates, also known as sow stalls, have long been criticised for the severe restriction of movement and behavioural expression, particularly during pregnancy. Research results have consistently indicated that prolonged confinement in individual stalls compromises welfare by limiting locomotion, social interaction and exploratory behaviour, while increasing the risk of stress-related pathologies [37].

In response to these concerns, the EU introduced restrictions on the use of sow stalls [38], which has led to the prohibition of the routine use beyond the first four weeks of pregnancy. The UK went further by banning gestation crates entirely in 1999, positioning itself as an early adopter of enhanced welfare standards. As with the ban on conventional laying cages, these reforms were widely interpreted as ethical advances that reflected growing societal unease with extreme confinement in livestock systems.

However, as in the poultry sector, gestation crate reforms largely focused on use rather than disposal. There was no coordinated effort to ensure that decommissioned stall materials were disposed of in ways that did not lead to subsequent transfer of these crates to other countries with less stringent welfare standards for gestating sows. As a result, older equipment continued to circulate, either through resale or reuse in contexts in jurisdictional regions where restrictions were absent. The experience with gestation crates also illustrates the long-term consequences of incremental reform. By permitting limited stall use under EU law, policymakers created a heterogeneous regulatory landscape that both delayed broader transitions and complicated enforcement. This history offers a cautionary lesson for current debates surrounding enriched cages and highlights the importance of addressing infrastructure mobility alongside welfare standards.

5.2. Farrowing and Lactation Crates: The Next Frontier of Welfare Reform

If gestation crates represent a partial and imperfect reform, farrowing and lactation crates are widely viewed as the next major challenge in pig welfare policy. These systems, designed to restrict sow movement during and after farrowing to reduce piglet mortality from crushing, have been defended on productivity and biosecurity grounds [39]. Nonetheless, a growing body of research indicates that farrowing crates impose marked behavioural restrictions, preventing nest-building, turning, and meaningful interaction with piglets, with significant welfare implications for the sow [40].

Recent farm-level assessments highlight significant cost-related challenges associated with transitioning away from conventional farrowing crates. An EU-wide impact assessment based on 225 farm surveys and expert consultations estimated that replacing farrowing crates with free-farrowing systems would require substantial investment in new pen infrastructure and building modernisation, with total sector-wide capital costs ranging from approximately €3.8 billion to €6.7 billion (at 2021 prices), depending on the scenario modelled. Transitioning to free-farrowing systems was projected to increase total costs per piglet weaned by 6–10% due to higher veterinary, labour and feed expenses, as well as higher piglet mortality and sow replacement rates associated with alternative housing designs [41]. Moreover, these cost increases occur alongside declines in sow numbers and piglet output under most scenarios, further complicating producers’ economic calculus. As such, while alternative systems may improve sow welfare, economic barriers, including greater production costs and large up-front capital requirements, pose substantial challenges to widespread adoption without targeted financial support or transitional schemes.

Policy debates about farrowing crates resolution of the issue in both the UK and the EU. While alternative systems such as free-farrowing pens are consistent with welfare benefits, the utilisation of these systems also poses management challenges and may require substantial investment and adaptation. As with enriched cages and gestation stalls, any future move to restrict or ban farrowing crates will lead to questions of transitional support, capital depreciation, and infrastructure disposal.

6. The Case for Scrappage Practices in Animal Welfare Reforms

Equipment disposal policies, in the context of animal welfare reform, refer to a coordinated policy that requires or incentivises the permanent decommissioning and recycling of materials from equipment in ways that there is no subsequent utilisation for animal confinement. Unlike simple bans on use, disposal practices should explicitly address the end-of-life of physical infrastructure, ensuring that systems removed from domestic production are not redeployed elsewhere. Such regulations are well established in other policy domains such as transport, where disposal is legislated to accelerate transitions, reduce negative externalities, and prevent the continued circulation of obsolete technologies.

Applied to animal agriculture, disposal practices matter because housing systems are durable capital goods with long functional lifespans. Enriched cages and farrowing crates can remain operational for decades, retaining economic value even after they become ethically contested. Welfare reforms that focus solely on prohibiting use within a regulatory jurisdiction, therefore, lead to the possibility that these systems will be utilised in ways that continue to result in egg-producing hen and gestating sow welfare issues elsewhere.

The introduction of disposal policies offers a range of interrelated benefits that extend beyond animal welfare outcomes alone. Ethically, such policies reinforce the coherence and credibility of welfare reforms. By preventing the export or resale of banned cage and crate systems, policymakers can demonstrate that welfare improvements are not merely symbolic or territorially bounded but are intended to enhance animal welfare in absolute terms.

While the case for disposal is compelling, its effectiveness depends critically on policy design. Disposable practices must be clearly integrated into welfare legislation, rather than treated as optional or ancillary measures. This includes defining disposal systems, setting timelines aligned with phase-out dates, and establishing verification mechanisms to ensure permanent decommissioning. Economic support mechanisms should be transparent and proportionate. Compensation need not cover the full replacement cost of infrastructure, but there should be recognition of residual value and recent investments, particularly where producers complied in good faith with previous regulatory requirements. Enforcement and traceability are essential. Without monitoring, there is a risk that disposing of equipment could be diverted into regions where there is less regulatory oversight of hen and sow welfare.

Empirical experience from the EU’s phase-out of conventional battery cages demonstrates the welfare risks associated with the redeployment of obsolete infrastructure when end-of-life controls are absent. Council Directive 1999/74/EC [4] banned the use of conventional battery cages for laying hens by 1 January 2012, but it did not include specific measures governing the disposal or traceability of decommissioned equipment. During implementation, the European Parliament expressly recognised that differences in compliance and enforcement could lead to uneven market conditions and potential competitive distortions between producers subject to the ban and those not yet compliant, which could in turn incentivise movement of products and equipment outside the regulatory framework [42]. Although most analyses focus on eggs and egg products rather than cage hardware itself, the absence of robust end-of-life governance for conventional cages left a regulatory gap that allowed retired systems to remain economically attractive for resale or reuse in jurisdictions with weaker welfare standards. This empirical gap reveals the importance of integrating scrappage and disposal regimes into welfare reform to prevent banned infrastructure from perpetuating welfare harms beyond domestic phase-outs.

7. Implications for UK, EU, and Global Policy Coordination

The UK’s forthcoming ban on enriched cages illustrates the ethical and regulatory challenges posed by capital mobility and cross-border markets. Without complementary mechanisms such as disposal policies, the reform risks displacing rather than mitigating welfare issues, both within the EU and internationally. Within regulatory regions, policy alignment between the UK and the EU is an essential aspect. Although enriched cages remain legal under EU law, initiatives such as the European Citizens’ Initiative End the Cage Age signal that EU policy may converge with UK standards in the medium term [43].

At the global level, welfare leadership carries reputational and ethical responsibilities. The export of enriched cages or other contested systems to countries with less stringent regulatory frameworks may inadvertently entrench intensive confinement practices, undermining the credibility of the UK’s reform and potentially creating international inequities in animal welfare outcomes [44]. Integrating cage and crate equipment disposal provisions and supporting international dialogue on best practices can reduce these risks and demonstrate that welfare reforms are substantive rather than symbolic.

Economic considerations also intersect with global trade dynamics. Secondary markets for equipment and infrastructure can create incentives for both sellers and buyers to circumvent domestic welfare objectives, with potential financial consequences if receiving countries subsequently adopt stricter standards. Transparent policy frameworks, including traceability requirements and aligned compensation mechanisms, can reduce uncertainty and facilitate more predictable transitions [45].

The broader issue is that welfare policy must be conceived as an integrated system encompassing ethical, economic, and regulatory dimensions. Implementation of the UK enriched cage ban provides an opportunity to demonstrate leadership by embedding cage and crate equipment disposal practices, coordinating with EU partners, and signalling to international stakeholders that more stringent welfare standards are both achievable and enforceable. Such a multi-level approach will enhance the legitimacy and effectiveness of reforms, ensuring that improvements in domestic practice are not offset by welfare deficits elsewhere.

8. Conclusions

The UK ban on enriched cages represents a significant advance in farm animal welfare, reflecting both scientific evidence and societal expectations for more humane production systems. However, as evident from the content of this article, reforms that focus solely on prohibiting use without addressing the subsequent utility of materials from cages and crates may lead to infrastructure risk exporting hen and sow welfare issues to other regions rather than mitigating these issues. Experiences resulting from the EU ban on conventional cages, and analogous reforms in pig production, demonstrate that equipment can circulate across borders, perpetuating ethically contested confinement systems and creating economic and regulatory uncertainties.

Cage and crate disposal standards are a potential, practical and ethically grounded solution to this challenge. By incentivising or mandating the permanent decommissioning of banned housing systems, such practices that align policy intent with material outcomes, reduce transport of welfare standards to other regulatory regions, and provide economic support for affected producers. Embedding cage and crate disposal provisions within broader policy frameworks, including coordination with the EU and consideration of global trade implications, enhances both the credibility and effectiveness of welfare reforms.

Ultimately, achieving meaningful improvements in animal welfare requires policies that are anticipatory, coherent, and system-wide. The UK enriched cage ban leads to an opportunity to demonstrate leadership, not only by eliminating cage-based systems domestically but also by establishing mechanisms that prevent the unintended displacement of banned welfare standards elsewhere, where regulations are less stringent. Such measures are essential to ensure that ethical ambitions translate into tangible welfare gains for animals worldwide.