Sustainability practices and challenges in the meat supply chain: a systematic literature review

Purpose – This study comprehensively depicts the state of the art on sustainability research in the meat supply chain to advance the debate on challenges and issues associated with developing sustainable supply chain management practices. Design/methodology/approach – The authors conducted a systematic literature review of 333 articles published in peer-reviewed journals and organized the extant literature into five areas of supply chain management practices: strategic orientation, continuity, collaboration, risk management, and proactivity. Findings – Since2016,themeatsupplychainhasreceivedincreasingscholarlyattention.Theliteratureshows the diffusionof highly heterogeneous sustainability practices related to multiple management areas and levels of analysis (institutional, industry, firm). The need for integrated, multilevel initiatives involving different stakeholders becomes increasingly crucial to the transition towards more sustainable meat supply chains. Practical implications – This study highlights the importance of regulatory and stakeholder pressures in the sustainability transition. Beyond setting regulatory requirements, policymakers may facilitate the establishment of collaborations within the meat supply chain and foster the development of support services that help firms to integrate sustainability in their business models. The review also alerts entrepreneurs and managers to the benefitsfrom cooperating withtheir supply chainpartners to navigate the industrytransition and thus more effectively respond to the demands of stakeholders and to the increasing customers ’ awareness of sustainability issues. Originality/value – Thisstudyisthe firsttosystematizethecorpusofknowledgeonthesustainabilityofthe meat supply chain by adopting a comprehensive approach to analyze relevant management and agriculture literature.


Introduction
Sustainability principles and practices are increasingly central to the agendas of both managers and policymakers (e.g.Jansson et al., 2017;Sharma et al., 2022).One of the key areas in which adopting more sustainable ways of 'doing business' produces major effects is managing the supply chain (Ashby et al., 2012;Chevrollier et al., 2023;M€ uller et al., 2009).Sustainable supply chain management approaches are highly industry-specific (Cagno et al., 2023).Industry differences inevitably lead to specific challenges in adopting sustainability practices, making it impossible to address sustainability issues without considering them (Allievi et al., 2015;Khalid et al., 2015;Schaltegger et al., 2023).
Among others, the food sector is considered a relevant case of a supply chain in which sustainability transition and changes in managerial practices towards a more sustainable paradigm are emerging as particularly important to face the consequences of climate change (Le on-Bravo et al., 2019;Smith and Gregory, 2013).As noted by Yakovleva et al. (2012Yakovleva et al. ( , p. 1299)), "the food sector is constantly innovating with alternative strategies to decrease burdens on the natural environment and improve social and ethical issues in supply chain through various production, marketing, labelling, accreditation schemes and initiatives".However, further heterogeneity within the food sector can be observed in terms of the drivers of sustainable innovation and sustainability-oriented managerial practices (Kharola et al., 2022;Le on-Bravo et al., 2019) because food products show substantial differences, such as price volatility, level of vertical integration, price transmission mechanisms, and dependence on imports in countries' trade balance.
Among food products, meat production attracts particular interest from scholars and practitioners due to its environmental impact (H€ ubel and Schaltegger, 2022;Kumar et al., 2022).Such impact has also made the analysis of the meat supply chain an increasingly relevant research context, on which several studies have focused.For instance, Leroy and Praet (2015) highlight the relevance of meat production traditions and their cultural role in food production systems; other scholars focus on the role of the institutional environment in improving the efficiency of the supply chain (Tereszczuk and Mroczek, 2014) and the variety of products resulting from its different stages (Amicarelli et al., 2021a, b).In addition, a few studies have focused on consumer behavior and awareness (Amfo and Ali, 2021) and, specifically, on the effects of the increasing perception of meat products as having a high impact on climate change (Spendrup et al., 2019).Recent studies have investigated issues related to biodiversity protection (Leone, 2021), the effects of substitute products (Collier et al., 2021), and the impact of COVID-19 on the meat industry (Ijaz et al., 2021;Riahi Dorcheh et al., 2021).
While research on the sustainability of meat supply chains has expanded significantly, especially in recent years, it has flourished in a fragmented manner.Contributions vary largely, for instance, concerning the steps of the supply chain investigated and the strategic and operational aspects of sustainability.Our study explored this heterogeneous and evolving research domain.Through a systematic literature review, we sought to address two questions: Q1. How has research on meat supply chain management sustainability evolved?Q2.What sustainability practices have been adopted in meat supply chain management?
Our study analyzed over 25 years of research on sustainability in the meat supply chain by reviewing 333 articles published in academic journals in the management and agricultural domains.We offer a comprehensive picture of the state-of-the-art sustainability literature in the context of meat production.In addition, we present promising avenues for future research in each of the five areas of sustainability practices in which we systematize the extant BFJ knowledge.Our study also provides implications for practice by furthering our understanding of the sustainability practices and approaches currently adopted and helping to identify the key challenges in the transition of the meat supply chain towards greater sustainability.An integrated approach focusing on the entire supply chain, rather than single steps, and involving multiple stakeholders is increasingly needed to promote such a transition (Stindt, 2017).
The remainder of this paper is organized as follows.Section 2 describes the methodology.Section 3 presents the evolution of the literature and descriptive results.Section 4 analyzes the managerial practices for sustainable meat supply chains by organizing the selected articles into five areas corresponding to the following categories of sustainable supply chain management practices: strategic orientation, continuity, collaboration, risk management, and proactivity.Finally, Section 5 discusses the avenues for future research and Section 6 presents the concluding remarks and practical implications.

Methodology
The review included only articles published in peer-reviewed journals, thus excluding books, book chapters, and other non-refereed publications, as the review process can be considered a mechanism that guarantees the quality of the contributions.The search was guided by the following steps.
First, we searched the Scopus database for academic articles containing keywords in the title or abstract without using any time frame but only selected English as the language of publication.Keyword selection plays a key role in determining the reliability of a systematic literature review (Snyder, 2019)."Meat" and "supply chain" were the two primary keywords searched in the papers' titles and abstracts.Then, "food supply chain" was also selected as a further and more inclusive keyword to be applied in the title and abstract screening; in this case, "meat" and "meat supply chain" were applied as keywords for the full-text analysis.To embrace a broad perspective in analyzing the relevant literature and offer a richer, comprehensive, and state-of-the-art picture, the search was conducted in the subject areas of "Business, Management and Accounting" and "Agricultural and biological sciences." The second step was to scrutinize the titles and abstracts to assess the relevance of the articles for our analysis.This process led to a total of 333 papers, 313 of which belong to "Business, Management and Accounting" and 20 to "Agricultural and biological sciences" (the Appendix reports the distribution of the articles by journal).
The third step involved coding and analysis.Two authors independently performed qualitative content analysis to classify the articles across various dimensions defined consistently in prior studies.We used an Excel datasheet in which descriptive information and research aims, methods, main findings, and contributions were reported for each article.
Articles were classified as either theoretical/conceptual or empirical; the latter were further categorized as quantitative if they were based on large-scale data collection and used statistical and econometric analytical methods, or qualitative if they used case studies or other qualitative methods.In addition, we report information on the research setting for empirical papers, including the country where the data were collected or the cases analyzed.
Notably, 22 out of the 333 papers selected are literature reviews.They were then analyzed to identify the relevant elements.For instance, the farming step of the supply chain is at the core of the literature review that focuses on sustainable pig production and animal welfare (Gunnarsson et al., 2020).Paciarotti and Torregiani (2021) reviewed the literature on the logistics of short food supply chains, whereas Reisch et al. (2021) focused on consumer

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behavior by reviewing the literature on demand-side policies that affect food consumption and waste.Generally, these reviews focus on specific steps in the supply chain and sustainability practices.Globally, these studies suggest that it is vital to consider the steps in the supply chain and the variety of sustainability practices managers may implement (Cagno et al., 2023).Therefore, for each paper reviewed, we also collected information on the step (or steps) of the supply chain that was investigated by distinguishing between the farming level (production and management of the livestock phase), transformation level (abattoir, sectioning, and/or seasoning phase), and the distribution and consumption level (including commercialization and promotion to the final consumer and the analysis of meat consumer behavior).Moreover, we classify sustainable supply chain management practices into different categories.We used the model proposed by Beske and Seuring (2014), which classifies managerial practices related to sustainable supply chain management into five categories.The word "category" is intended as "an umbrella term to group and sort the different practices and link them to relevant issues of SSCM [sustainable supply chain management] and SCM [supply chain management], respectively.It is typically used in this manner in approaches that build, e.g. on content analysis, to group different items (here practices) into one related category" (Beske and Seuring, 2014, p. 323).
The categories we apply to offer state-of-the-art literature on the mean supply chain are defined as follows: (1) strategic orientation, (2) continuity, (3) collaboration, (4) risk management, and (5) proactivity.
Strategic orientation refers to top management and how sustainability principles are linked to a company's values, culture, and mindset.Studies focusing on top managers' commitment to the triple bottom line to integrate sustainability goals and dimensions into supply chain management fall under this category.
The Continuity category refers to how partners work together to improve a supply chain's overall performance.Practices associated with this area relate to supply chain partner selection and long-term relationships.
The Collaboration category includes all practices aimed at enhancing communication and information flow and increasing supply chain transparency.Logistics and technological integration and IT interoperability among partners represent key dimensions in this area.
Risk management includes practices that reduce the risk of supply chain disruption.From this perspective, standards and certifications play a major role, as they increase the legitimacy of a business and are useful in establishing relationships with stakeholders, thus contributing to making the supply chain more environmentally and socially responsible.Risk-reducing practices include managing relationships with pressure groups (such as NGOs) and sharing information with supply chain partners for monitoring purposes.
Proactivity refers to proactive communication with stakeholders, sharing information on buyer behavior and social trends, and, more generally, activities that improve stakeholder management and foster sustainability-oriented innovation and learning.

Evolution of the literature and descriptive results
This section presents the distribution of 333 selected papers over time and a descriptive analysis of the literature along the aforementioned dimensions.The literature covered a period of 27 years, from 1994 to 2021 (Figure 1).Three periods were observed in the analysis of the annual distribution of articles.
The first period  was characterized by low research interest, with a mean of nearly three articles per year.It is worth noting that only five papers were published in 1998, one year after the adoption of the Kyoto Protocol.The second wave was the 2002-2015 period when the yearly mean number of articles grew to 6.5.During this period, increasing attention BFJ was fostered by international policy events on sustainability and climate change, which contributed to making sustainability issues more central to businesses and society.Interest in the topic increased in 2016, which can be considered the beginning of the third wave (from 2016 to today), with the publication of, on average, 32 papers per year and a peak of 45 publications in 2020.The promotion of the SDGs in 2015 further increased scholarly attention toward sustainability and, in particular, towards sustainable food supply chain management.
Considering the article type, 79 out of 333 articles (23.7%) were conceptual and included 22 literature reviews.The 254 empirical articles included large-scale data collection based mostly on case studies (178).In terms of the steps of the meat supply chain covered by the analysis (farming, transformation, and consumption), 169 (50.7%) articles focused on only one step of the supply chain: 83 on the farming level, 23 on transformation, and 63 on consumption.These results suggest that research has tended to adopt a narrow focus on a single step.Only a limited number of studies (66 out of 333, corresponding to 19.8%) have considered all three steps in the supply chain.Moreover, in 77 papers (23.1%), the focus on meat was part of a broader analysis of food production supply chains (77), whereas in other studies, a tighter focus on a limited number of farmed species was adopted.Specifically, greater attention has been paid to animals that are predominant in Western farms, such as beef (80 studies), pork (56), and poultry (38).Concerning the geographic scope of the data in the empirical papers, the vast majority of the studies analyzed the European area (177), with a prevalence in Italy (25), the United Kingdom (24), and Spain (19).Other research settings are distributed as follows:43 Asia, Oceania, and Far East; 39 North America; 20 Latin America; 10 Africa.

Managerial practices for sustainable meat supply chain
As discussed in the methodology section, to deal with the large variety of practices identified in the literature on the sustainability of meat production, we organized the selected articles into five groups based on Beske and Seuring's (2014) categories of sustainable supply chain management practices.In this section, we describe the main topics that were investigated.

Strategic orientation
The Strategic orientation category of sustainability practices comprised 85 articles."This "orientation" emphasizes top-management support as a key factor for reaching the full potential of SSCM [sustainable supply chain management].Being part of the strategic values of a company, orientation also implies to integrate sustainability in the organization's strategy and strategy formulation for reaching a competitive advantage" (Beske and Seuring, 2014, p. 324).A representative list of publications in this area is presented in Table 1.
The adoption of a sustainability strategic orientation as an enabler of supply chain ecologic transition is widely discussed with reference to several themes (Kumar et al., 2022): the use of sustainable performance metrics (Petit et al., 2018); the resources allocation for animal welfare improvements (Trejo-Pech and Thompson, 2020); the procurement policies oriented to minimize emissions through the use of alternative protein sources for animal feed (Allegretti et al., 2018); the development of specific strategies to achieve sustainable competitive advantages (Ferry et al., 2013;Heikkurinen and Forsman-Hugg, 2011); more recently, firms' pursuit of internationalization strategies to preserve premium-price for their sustainability-oriented products (Tanasiichuk et al., 2020).Value appropriation strategies in the supply chain are also debated (Petit et al., 2018).
More recently, an increasing interest in analyzing local food systems emerged (e.g.Fern andez- Barcala et al., 2017;Jarze ˛bowski et al., 2020).Scholars have investigated how the strategies of local food systems reinforce the identity of a territory (Berti and Mulligan, 2016) and affect consumer loyalty (Fern andez-Ferr ın et al., 2021).Local food system strategies have been analyzed in association with the social dimension of sustainability, focusing on both the positive and negative effects on local communities (Petit et al., 2018).Several studies have underscored small farms' role as part of regional and local agri-food systems (Berti and Mulligan, 2016) and short food supply chains (Paciarotti and Torregiani, 2021).
Within this research domain, we have also included 24 papers that analyze the case of "protected designation of origin" and "protected geographical indication" products as increasingly important market segments.In terms of the research setting, most of these studies (18) focused on Spain (Fern andez-Ferr ın et al., 2021;Gracia, 2006;Gracia et al., 2011) and Italy (Poponi et al., 2021).These studies indicate that these geographic indications can be considered as elements of a "niche strategy" that contributes to the development of local, legally protected sustainable food systems.A firm-level analysis of strategic orientation towards sustainability has also investigated the differences between family and non-family firms in green innovation adoption, focusing on their varying motivations and pressures on production system transition (Dangelico et al., 2019;H€ ubel, 2022).

Continuity
Twenty-one papers were identified in the Continuity category of sustainability practices.These studies predominantly focused on the transformation of the supply chain (18 papers, corresponding to 85%).In a few cases, the analysis focuses on the long-term relationships among farmers to improve product quality and between farmers and distributors to offer products labeled as regional selections (e.g.Gracia, 2006).These studies suggest that high product quality is a prerequisite for establishing long-term relationships to increase supply chain sustainability.Research in this area also highlights that in the specific context of short food supply chains, entrepreneurs' competencies play a crucial role in developing network contacts (Broderick et al., 2011).
Financial considerations and related factors, such as issues related to value appropriation and negotiation power, have traditionally been identified by supply chain management studies as the primary source of pressure in partner selection (Riahi Dorcheh et al., 2021) (Bremmers et al., 2007).Therefore, the focus of the analysis has shifted from the economic aspects and transparency of supply chain mechanisms to multidimensional assessments and governance approaches (Cagno et al., 2023).This shift has enriched the complexity of the dimensions and variables involved in empirical studies (H€ otzel and Vandresen, 2022).
Concerning the environmental aspect of sustainability, the implementation of an environmental management system is seen as an initiative pursued at the network level rather than at the firm level because it requires joint efforts by the actors in the supply chain as a whole (M€ uller et al., 2009).Furthermore, best practices of long-term partnerships have

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been identified in both the context of bio-districts and short food supply chains (Poponi et al., 2021;Vittersø et al., 2019) or in the pursuit of strategies oriented to the achievement of a premium price market positioning (Perez et al., 2009;Broderick et al., 2011).These studies also have relevant implications for policymakers who are called upon to design initiatives that can stimulate the establishment of such partnerships.
In summary, we observe an increasing research scope from operational transaction analysis to multilevel governance and closed-loop models.Table 2 lists representative papers in this area.

Collaboration
The Collaboration category included 48 papers that focused on practices aimed at enhancing communication and transparency within the supply chain.The representative papers in this category are listed in Table 3.
Regarding communication, scholars initially analyzed food security and safety (Zadernowski et al., 2002;Farooq et al., 2016) and international regulation (Schw€ agele, 2005) as drivers of more transparent relationships within the supply chain and with markets.Research interest in this topic has grown with the emergence of health crises at the livestock level, and the pressure toward globalization and market integration has increased (Manning and Baines, 2004).
Several studies have highlighted the crucial role of technology in monitoring meat supply chains (Kumar et al., 2022).From this perspective, research has investigated the automation of data collection, specifically regarding near-field communication (Pigini and Conti, 2017) and radio frequency identification (Farooq et al., 2016), the development of more informed logistics decision-making, and the integration of sustainability practices into industry 4.0 processes (Ojo et al., 2020).Governance structures and collaboration mechanisms within the supply chain may also affect the adoption of these practices (do Canto et al., 2021;Martins et al., 2017).Similarly, because information asymmetries are barriers to developing trustbased relationships (Rosales et al., 2019), common infrastructure technology may be necessary for reducing such asymmetries (Lees et al., 2020;Ji et al., 2017).Technology can foster inter-company information management (Pigini and Conti, 2017) to promote quality and transparency in supply chain relationships (Lees et al., 2020).
Finally, the role of focal firms as facilitators in adopting sustainability practices has been explored (Miemczyk et al., 2012).Specifically, this role has been investigated in terms of logistics integration and food integrity preservation along the supply chain (Mohammed and Wang, 2017a, b).Once they establish a set of relationships with key partners, focal firms tend to design broader and more integrated forms of collaboration (Ji et al., 2017), thus fostering external stakeholder engagement (Caracciolo et al., 2016).

Risk management
The Risk management category includes studies investigating practices to reduce the risk of supply chain disruption.A total of 67 papers were coded relative to this area (Table 4

lists representative articles).
A highly relevant research topic in the risk management category is the role of standards and certifications, which has been largely investigated across geographical areas and years.However, evolution over time can be traced (Vittersø et al., 2019), and various themes emerge depending on the different research settings.In the European context, interest has gradually shifted from the application of business-to-business general standards (e.g.ISO) to consumeroriented standards, such as GMO-free production (Ghozzi et al., 2016), animal-welfare assurance (Marescotti et al., 2020), and organic or fair-trade labels (Sheridan and Mote, 2018).In Asia, Oceania, and the Far East, halal certification is strongly tied to cultural identity  Studies focusing on North America cover more heterogeneous topics, such as the role of organic certifications that emerged in the analysis of firms' niche strategies (Marshall and Standifird, 2005), the disruptive entrance of new participants into the meat supply chain (Sheridan and Mote, 2018), and the increased efficiency of sustainable systems compared to conventional ones (P erez et al., 2019).Research in the African context analyzes the mechanisms that can reinforce the role of regional product certifications ( Van der Merwe et al., 2019).The advantages of these certifications have also been associated with the identification of consumer niche targets for upgraded meat standards and their relative willingness to pay (Amfo and Ali, 2021).The growing number of certifications represents a valid risk-avoidance mechanism in the meat supply chain, although the high fragmentation of standards decreases the homogeneity of controls.

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Regarding the evolution over time, risk management practices were initially related to specific emergency prevention and monitoring measures, such as the Bovine Spongiform Encephalopathy crisis (Van Dorp, 2003) and product recalls (Roth et al., 2008)

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traceability reinforces the promotion of integrated and safe meat supply chains (Van Dorp, 2003;Roth et al., 2008;Van der Merwe et al., 2019).The preservation of product quality is another issue related to risk management and has been investigated at different levels of analysis, such as farming, consumption, and the entire supply chain (Akaichi et al., 2019;Duvaleix et al., 2020).
Finally, it is worth noticing that plant-based products as a source of risk for the meat supply chain have received very limited attention although plant-based products could be considered as an emerging category of substitute products.

Proactivity
Papers that were categorized into the Proactivity category investigate the specific "tools to foster innovation" in the supply chain and the management of supply chain partners and stakeholders in "the development phase of products" (Beske and Seuring, 2014, p. 327).Eighty-four studies were included in this group.The majority of papers focus on "life-cycle assessment" (57), carbon footprint ( 22), and practices related to water management (12), as well as the related, recently adopted assessment methods, namely the life cycle inventory (Saxe et al., 2018) and material flow analysis (Amicarelli et al., 2021a, b).Similarly, the life cycle costing methodology was applied in Europe to a novel slaughterhouse model with a reduced Estimate consumers' willingness to pay and examine the determining factors influencing their willingness to pay for safe pork in Vietnam Consumers' awareness of the risk of unhealthy pork, household income, and expenditure are the drivers of the willingness to pay The amount of pork consumption per month negatively affected the willingness to pay more for shoulder and rib pork Source(s): Authors' elaboration Table 4.

Sustainable practices and meat supply chain
environmental impact (Valente et al., 2020).These methods have recently been used to assess the environmental impact of farming and/or meat-based products and have been analyzed in 60% of the selected studies in this category.Globally, research shows high heterogeneity in terms of geographic scope and analytical perspectives.A few studies adopted an economic perspective (Martinelli et al., 2020) and focused on methods such as life cycle costing (Valente et al., 2020).Many life cycle assessment analyses have been conducted in Europe (37), with a significant increase since 2010 (Ferronato et al., 2021;Nguyen et al., 2012).More recently, research has covered other regions, such as Asia, Oceania, and the Far East (4) since 2012, Latin America (4) since 2015, North America ( 7) since 2016, and Africa (1) in 2017.Carbon footprint analyses have recently been applied to beef production systems in several contexts, including Latin America (Florindo et al., 2018), North America (Verg e et al., 2018), and Africa (Gwiriri et al., 2019).Life-cycle assessment has also been associated with other analyses, such as water footprint (Bragaglio et al., 2018;Harding et al., 2017) and life-cycle inventory (Saxe et al., 2018).Table 5 illustrates the representative papers included in the proactivity category.

Avenues for future research
We organized promising lines of inquiry using the framework of the five categories of sustainability practices discussed above: strategic orientation, continuity, collaboration, risk management, and proactivity.
First, with regard to the Strategic orientation category, future research might further analyze the factors at varying levels (product, firm, context, and regulation) that drive the adoption of sustainability practices in the meat supply chain and, in general, in food production.Analyzing the influence of regulatory pressures on the adoption of specific sustainability practices in the meat industry remains an important area of research (Schaltegger et al., 2023).Firm-level factors include aspects related to the ownership and governance structure of the firm beyond the simple dichotomy between family and non-family firms, which has already attracted some research efforts (Dangelico et al., 2019).This perspective opens up the hypothesis of comparing companies with respect to the level of vertical integration, degree of formalization for the development of sustainability plans, and different sensitivities to sustainability issues in the presence of generational transitions (Chevrollier et al., 2023).In addition, while consumers' willingness to pay for sustainable meat-based products is considered a proxy for the attractiveness of sustainabilityoriented strategies, further investigation would provide a deeper understanding of their relevance.To advance research from this perspective, studies are needed to delve deeper into the interplay among different levels of analysis.Large-scale, multi-country empirical studies have the potential to offer relevant contributions to the drivers of the transition towards a more sustainable approach to business.The level of development of the production context can also be key to promoting ecological transition pathways customized to the contexts and constraints of production practices.
Regarding the Continuity domain multilevel governance instruments and closed-loop models have recently emerged.However, we urge researchers to further our understanding of new models of sustainable procurement selection and governance that can include new categories of stakeholders, such as NGOs, in the definition of long-term goals.How firms can achieve greater stakeholder engagement should be addressed to identify the mechanisms leading to the implementation of new multilevel governance instruments and models.However, this model of co-creating targets and goals for improving the impact of productions clashes with divergent interests between internal and external stakeholders.The achievement of a balance of interests is particularly challenging (Sharma et al., 2022).Qualitative research, case studies and in-depth interviews would be helpful to advance our understanding of these aspects.Complete a cradle-to-retailer lifecycle assessment of Danish export pork and provide a comparative assessment of six after-cooling technologies for the pork supply chain to three markets: Denmark, China, and Australia The human edible protein required in feed to produce 1 kg of human-edible protein was over 4 for all supply chains Pork production is a net consumer of human-edible protein, while arable land use is a useful assessment metric (continued )

Sustainable practices and meat supply chain
Research on sustainability practices included in the category of collaboration practices has recently recognized the crucial role of technology in enabling firms to build long-term partnerships in the meat supply chain (Ojo et al., 2020).Further studies are required to identify the best practices.Moreover, the shared development of information exchange platforms has been associated with the use of blockchain, but no application of artificial intelligence in the meat supply chain appears to have been analyzed despite explorative cases in other supply chains.One opportunity for further investigation may be mapping supply

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chain traceability systems by proposing the development of a new system that combines different information sets into a single, integrated, and shared space.In this respect, future research could also develop conceptual contributions and frameworks.
Within the Risk management category, practices related to food safety and quality standards have been extensively investigated.However, it is increasingly relevant to analyze practices that ensure food safety and lead to premium prices, thus enabling firms to achieve sustainable competitive advantages and better meet the expectations of retailers and consumers.Moreover, research on risk management practices in the context of the meat supply chain cannot neglect the increasing importance of plantbased products as substitutes for meat, given their sustainability attributes.These products, which represent a market niche today, may raise barriers to developing sustainable meat-based products, thus becoming a source of risk for the entire meat supply chain.Within the scenario of a greater consolidation of plant-based alternatives, future studies may highlight the prospects for better positioning "sustainable" meat products on the market.Large-scale analyses on consumer behavior could offer valuable contributions to deepen our knowledge of this phenomenon.This in turn would encourage a greater spread of those managerial practices supporting sustainabilityoriented meat production.
Our review also highlights the importance of Proactiveness and related practices that can lead to new pathways for reducing the environmental footprint of food production.The widespread application of life-cycle assessment and similar models demonstrates their importance.Specifically, the literature on meat supply chains has shown an expansion of managerial practices adopted to implement a more sustainable proactive orientation.However, scholars are called on to make further research efforts to develop frameworks and models that may more effectively guide 'practitioners' in turning sustainable proactiveness into action (Kumar et al., 2022).
Furthermore, comparative analyses of meat and other food products (or other industries) could offer important insights and opportunities to integrate different approaches into a comprehensive framework for sustainable meat supply chains.It is also worth noting that most research efforts have focused on one step of the meat supply chain, while an integrated approach that analyzes the entire supply chain is less frequent.Because the transition towards a sustainable meat supply chain increasingly relies on initiatives and practices shared among all actors in the supply chain, the need for integrative frameworks appears to be even more critical.However, the heterogeneity of the products and production systems within the meat supply chain may constitute a barrier to these efforts.
Finally, it is also important to point out that the analysis of sustainability practices merely in terms of the adoption versus non-adoption dichotomy may lead to neglect the inherent processes and post-decision outcome.How the implementation of sustainability practices unfolds over time is an intriguing question that could be better addressed by studies paying attention to the temporal dimension and considering timing, pace and patterns of sustainability-oriented strategies.Scholars are therefore called on to investigate how sustainability is undertaken in a more process-based view.Process-based analyses would be particularly beneficial to delve deeper into the challenges, barriers and outcomes associated with a more sustainable approach to business.

Concluding remarks and practical implications 6.1 Concluding remarks
Research on sustainable practices in the meat supply chain has steadily increased over time and has shown substantial development in the last decade.Scholars have investigated various aspects related to how increasing pressures toward sustainability at the institutional, Sustainable practices and meat supply chain industry, and firm levels have affected the strategies and managerial practices of the actors involved in the meat supply chain.This study offers an overview of the extant literature by organizing the stock of knowledge on this topic around a few key dimensions of analysis and relevant categories of sustainability practices.Our review may be helpful to scholars interested in further investigating the areas for a more effective implementation of those practices, thus supporting the transition of the meat supply chain towards sustainability.

Managerial and policy implications
This review has several practical implications.The increasing variety of managerial practices analyzed by the extant literature demonstrates that the sustainability-oriented transformation of the meat production poses several challenges and urges firms to transform their business models and organization.Although managers and entrepreneurs are increasingly aware of the benefits of adopting sustainability-driven innovations, they need to carefully consider the complexity and risks of the sustainability transition and its implications for the entire organization, especially in terms of resource and competence needs.
For managers interested in adopting more sustainable business models, it is crucial to establish a long-term collaboration with their supply chain partners to jointly implement sustainability initiatives at both the process and product levels.Moreover, our study alerts managers to the fundamental role of technology as an enabling factor in reducing information asymmetry, improving efficiency, and developing trust-based relationships.This, in turn, increases the willingness and ability to embrace sustainability.This review also emphasizes the importance of a 'situational' approach to implementing different categories of practices, pointing out that profound distinctions must be attended to at different levels, such as geographical, social, environmental, cultural, and ethical.Furthermore, our study has implications for policymakers because it underscores the importance of regulatory and stakeholder pressures in the transition toward sustainable supply chains.Indeed, it is increasingly acknowledged that individual firms' initiatives cannot be sufficient for promoting sustainable solutions in reactive and 'business as usual' contexts and for reconfiguring traditional business models.Therefore, the driving force of the regulations plays a major role.Policymakers may encourage the provision of support services that help firms to integrate sustainability principles and practices into their strategy.Beyond setting regulatory requirements, public actors and business associations may act as 'facilitators' for enhancing stakeholder engagement and the development of collaborations and initiatives involving local food production systems (e.g.bio-districts).In terms of regulatory/institutional intervention, European legislation may have a huge impact in driving further homogenization of production standards, which in turn would intensify even more the spread of sustainability-oriented managerial practices.
In sum, although a variety of practices have been developed and implemented, the transition towards more sustainable supply chains increases the need for integrated and extensive policy approaches that consider the multiple actors involved in the different steps and their specificities, including their organizational needs, competence gaps and barriers to the transformation of their business models.In this respect, the development of more refined tools and frameworks for the assessment of sustainability performance (Cagno et al., 2023) would also be very helpful for two major reasons.First, it would facilitate the identification of the most relevant sustainability gaps within existing business models and increase firms' awareness of the areas in greater need for improvement.Second, such tools and frameworks would be highly supportive to effectively communicate the value of sustainability-oriented productions.

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Figure 1.Number of articles by year . However, more recently, studies on network collaborations have highlighted a broader (Tronstad and Unterschultz, 2005)ultz, 2005)by acknowledging the increasing role of "governance structures and coordination mechanisms"(Martins et al., 2017, p. 511) and multiactor governance in the adoption of a circular economy approach(Poponi et al., 2021).Longterm stable partnerships within the supply chain are particularly effective if promoted by the organized distribution