ISSN: 2641-2969
Annals of Environmental Science and Toxicology
Research Article       Open Access      Peer-Reviewed

The determinants of bushmeat consumption in urban areas in Laos

Phoyduangsy Saysamone, Bounmy Inthakesone*, Phonekeo Viraxay, Syphoxay Pakaiphone, CHANSAMONE Luanglath and Vannisa Thammachack

Faculty of Economics and Business Management, National University of Laos, Laos
*Corresponding author: Bounmy Inthakesone, Faculty of Economics and Business Management, National University of Laos, Laos, E-mail:
Received: 26 September, 2022 | Accepted: 17 October, 2022 | Published: 18 October, 2022
Keywords: Wildlife consumption; Government officials; Health; Belief; Laos

Cite this as

Saysamone P, Inthakesone B, Viraxay P, Pakaiphone S, Luanglath C, et al. (2022) The determinants of bushmeat consumption in urban areas in Laos. Ann Environ Sci Toxicol 6(1): 063-068. DOI: 10.17352/aest.000056


© 2022 Saysamone P, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

This study aims to examine the determinants of bushmeat consumption in urban areas in Laos. Men consume more bushmeat than women. Job, the government official was the major bushmeat consumer, but there was no proven by statistical approaches from this study we have done. The education of people who consume bushmeat has finished high school level. Ethnic, Lao Loum people have a negative impact on bushmeat consumption, but for Hmong or Lao Theung people, bushmeat is a long tradition of eating and being a major food source. In addition, believing in eating bushmeat can make people healthy is also valid.


The man jumped to the top of the food chain in the last 100,000 years [1] at least 17% of taxonomic families were lost in the fifth extinction and the sixth extinction will happen in the twenty-second century [2], between 25 and 50% of all current species are expected to be lost [3], the number of the extinction could as much as forty-five thousand times higher than the background rate [4], this sixth extinction will be caused by human activities [2]. In addition, the global human population will double over the next century and human activity can have adverse effects on biological resources loss and food requirement [5-7] and it will cause to the loss of habitat which is probably the single greatest threat facing endangered species [8,9], then it finally will automatically lead to biological conservation [10].

Biodiversity contributes directly and indirectly to many constituents of human well-being and at the same time, the loss in biodiversity will also cause a decline in people’s well-being [11]. Humans benefit from wild nature such as nutrient cycling and the direct harvest of wild species for food, fuel, fibers and pharmaceuticals [12].

Bushmeat is a food item and part of a complex commodity chain, linking rural bushmeat hunters to urban bushmeat consumers [13]. To the condition of life and of one distinct organic being to another being [14] so that if one species disappears another would be too. Much biological research has been involved around the costs of species loss or protection, but there are few fundamental causes studied on the human economic behavior that leads to extinction like the determinants of bushmeat consumption topic [2,15].

Awareness raising on wildlife conservation issues is important for those who purchase bushmeat products in cities and also they have a moral obligation to conserve biodiversity [16]. Understanding the pattern of bushmeat consumption is an important issue for designing approaches to address the major threat to wildlife [17-20]. Urban people’s perception that bushmeat is a luxury good [21], tastier, cleaner and healthier those have caused and pushed many species to the brink of extinction [22], also cultural factors are indeed the stronger predictors for bushmeat consumption [23]. Increasing urban bushmeat consumption poses a major threat to fauna biodiversity [24]. The raising of wealth in urban markets has also led to higher demand for bushmeat products [17-19,21,25,26]. Bushmeat consumers tend to be high-income men of all ages working in high-status positions as businessmen, finance professionals and government officials [27].

Market price incentives may be effective at reducing demand for bushmeat products [28]. Bushmeat hunting is an important driver of wildlife depletion [29-32]. The issue of illegal wildlife trafficking, when considered as a problem resulting from economic, demographic, and market expansion, has led to increased consumer demand for wildlife [33], which clearly illustrates that buyer demand is a factor in increasing the commercialization of wildlife [30], government staff was the most observed customers in restaurants [24]. As the wildlife trade is a highly rewarding activity, the law cannot be restricted [32].

Most of the world’s species and biodiversity are found in developing countries [34]. Southeast Asia, is a region supporting more threatened species than any other comparable continental area, but currently facing an extinction crisis driven by unsustainable levels of commercial hunting, cultural attitudes and behaviors related to bushmeat consumption [35]. The continued decrease in this wildlife is due to forest hunting [33].

Laos, which is in Southeast Asia has been recognized as one of the world’s most important areas of biodiversity such as wildlife [36], also has been experiencing a decline in natural resources, with its continued decline in wildlife [37]. In November 2011, approximately 5,000 species of animals were protected by the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), Laos contains almost 5% of all world species [38].

In Laos, the practice of eating bushmeat is being constructed [15], some people eat bushmeat because it is familiar and traditional practice [39] and some ethnic group was statistically significant bushmeat consumer [40]. In some parts of Laos, bushmeat made up over 75% of the meal of households [41] and was eaten almost 2 times a week [41,42], while domestic meat, for instance, pork consumption was estimated at 9.31 kg/capita, followed by bovine meat at 7.29 kg/capita and poultry meat 4.21 kg/capita [43]. People from urban areas such as government officials, consultants, construction workers, and business people often travel to rural areas as an opportunity and sometimes they get some bushmeat [15]. Bushmeat hunting is essential for Lao livelihoods for instance the food source for the poor [22]. Overall, a big demand for bushmeat come from urban areas, so changing urban bushmeat consumption is needed to change bushmeat hunting among rural villagers [44].

The cost of protecting wildlife is huge for the government, most of the economic research has involved the costs of species protection [2]. Recently, in Laos, the cost for paying a ranger is about USD 6.5 per person per day1, so it needs about 5 rangers to complete 2 km2 area per day, while there is over 300 km2 (or 14% of the land area of Lao PDR) has been defined as protected areas, so it requires lots of money to implement the conservation of flora and fauna. Therefore, an analysis of understanding the determinants of demand for bushmeat would be an alternative solution that should be considered since many factors can determine bushmeat consumption. Thus far, the central objective of this research is to estimate what are the factors that determine urban bushmeat consumption in Laos. In this study, we want to test that the big bushmeat consumers are government officials [15,24].


This study assesses the factors associated with bushmeat consumption or otherwise. 2,464 urban individuals who have eaten bushmeat (or otherwise) in the last week and have been living in eight major provinces2, were randomly interviewed3. The data was collected in two phases, the first collection was conducted in early 2018 and the second one was in middle 2018 by the Faculty of Economics and Business Management (FEBM), National University of Laos (NUoL).

Figure 1 shows the map of Laos and the sampling areas. Laos is situated in the middle of South East Asia. The country is landlocked, so it has no direct access to the sea and has common borders with China, Vietnam, Cambodia, Thailand and Myanmar. The country is located in the center of the Indochinese peninsula. In tropical Southeast Asia, the biodiversity hotspot, which includes Lao PDR, is one of the most biologically important regions of the planet [45]. Currently, it is suggested that this biodiversity richness will soon reach human-induced extinction rates at least five times higher than in the recent past [46]. Regarding the sampling areas 1,2,3,4,5,6,7 and 8, representing Luangphrabang, Xiengkhuang, Vientiane, Vientiane Capital, Bolikhamxay, Khammuan, Sannakhet and Champasack provinces, respectively, these are the majority cities of Laos so the potential of bushmeat consumption is usually from these areas.


1A Six Months Report on Patrol in Phouchomvoy Provincial Protected Area (PCV-PPA), January - June 2018, the project managed by the Faculty of Economic and Business Management, National University of Laos

2Luangphrabang, Xiengkhuang, Vientiane, Vientiane Capital, Bolikhamxay, Khammuan, Sannakhet and Champasack provinces.

3The individual respondents who are as a representative of the households and live in the third household along the right side of the road.

Table 1 defines all variables and their measurement units in the logistic regression analysis method. The bushmeat consumer is the dependent variable (cons) and independent variables are gender (gen), age (age), job (job), education (educ), ethnic (ethn), households size (hhs), belief (belief) and average monthly expenditure of the households (mexp).

Table 2 describes the relationship between the dependent variable (bushmeat consumer) and independent variables (gender, age, job, education, ethnicity, household size, belief and monthly expenditure) as well as the explanation of their assumption of them.

The specification of the logistic equation is as below:

Cons= β 0 + β 1 gen+ β 2 age+ β 3 job+ β 4 educ+ β 5 ethn+ β 6 hhs+ β 7 belief+ β 8 logmexp+ε MathType@MTEF@5@5@+=feaaguart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqk0Jf9crFfpeea0xh9v8qiW7rqqrFfpeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=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@8A33@


Table 3 shows that individual respondents or bushmeat consumers covered more than 53%, of those are male which is covered almost 60%, are on average over 34 years old and are Lao Loum people who believe in Buddhism. The bushmeat consumers tend to be people who are married and have completed high school level, they are retired government employees and merchants who have a position (government employee) as a head of the division office. The household size is about 6 people and has an average monthly expenditure of more than 3,4 million kips (equivalent to 450 US dollars). More than 60% of bushmeat consumers used to go to the province in the last year on average more than 2-3 times. In addition, there are more than 67% of bushmeat consumer believe that eating bushmeat lead to making them healthy. Furthermore, more than 93% of bushmeat consumers are aware of law enforcement on wildlife.

Table 4 shows the result of logistic regression estimation shows that the repressors other than age, household size and average monthly expenditure are not statistically significant. The Gender, by 0.538 units of bushmeat consumption increase if the bushmeat consumer is men, for a reason because eating bushmeat for fun or to make good relation with friends and colleagues. The job of respondents is statistically significant by 0.412 unit increase in bushmeat consumption if they are the government official, it is true that when government officials go to work in other provinces, on the way back home they like to have (buy by themselves or a gift from local people) some bushmeat for eating with their friends, families, and colleagues [15]. The education is statistically significant by 0.027 increase in bushmeat consumption if people who have higher education, the reason is that they know bushmeat is a rare food to find then they will buy when they have found it [47]. Ethnic is the opposite of the assumption, but has statistically significant by negative 0.265, meaning that Lao Loum people are likely to consume less bushmeat, in another word, bushmeat is the major food source for Hmong people and Lao Theung people [26,47-51]. Belief is in the same direction as the assumption and has a statistically significant by 1.127 increase if people believe that eating bushmeat can make them healthy [22,39]. In addition to the result of the logistic regression model, the LR chi2 (9) = 338.6; Prob > chi2 = 0.000; and the Pseudo R2 = 0.1128.

Table 5 shows the result of the average partial effects. If the respondent is a man, a government official, higher education level and belief (bushmeat consumption makes healthy), around 12%, 9.2%, 0.6% and 25.42% increase in bushmeat consumption, respectively. In addition, if the respondent is Lao, around a 5.98% decrease in bushmeat consumption.


Bushmeat is a kind of luxury good [21], sometimes bushmeat consumers do not buy it by themselves (it was like a gift from their cousins, friends and colleagues) so the bushmeat price was not statistically significant in this study. From this study, men consume more bushmeat than women. Job, according to [15], the government official was the major bushmeat consumer, but there were no proven statistical approaches so this study, is statistically significant at 0.412 unit increase in bushmeat consumption if they are the government official. The education of people who consume bushmeat has finished high school level. Ethnic, Lao Loum people have a negative impact on bushmeat consumption, but for Hmong or Lao Theung people, bushmeat is a long tradition of eating and being a major food source. In addition, believing in eating bushmeat can make people healthy is also valid. The specific objective of this research is to explore whether government official in Laos induces bushmeat hunting. Therefore, it needs to put more campaigns among government offices on stopping bushmeat consumption.

Based on this research, the potential practical applications that the government of Lao (GoL) should pay more attention for instance raising more awareness among government officials by stopping the bushmeat buyer. Furthermore, the GoL also has to work hard to make society change its mind that eating bushmeat makes them more healthy.

In this research, there is some limitation since the data was collected in the mid of 2018, which is a little old. In addition, it was before the pandemic of COVID-19. Therefore, bushmeat consumption patterns might have changed in Southeast Asian nation like Laos because of the potential influence of COVID-19 that make bushmeat consumer fear.

  1. Noah HY. Sapiens: A Brief History of Humankind. London: Penguin Random House UK. 2014.
  2. Alexander, Robert R. “Modelling Species Extinction: The Case for Non- Consumptive Values.” Ecological Economics. 2000; 35(2): 259-269.
  3. Virginia M. The Sixth Extinction. 1999;195, National Geographic.
  4.  Elizabeth K. The Sixth Extinction: An Unnatural History. Bloomsbury Publishing plc. 2015.
  5.  Roger P, James McGilvray YM,  Common M. Natural Resource and Environmental Economics. .  Harlow: Essex: Pearson Education Limited. 2003.
  6.  Anders S. “On the Optimal Exploitation of Terrestrial Animal Species.” Environmental and Resource Economics. 1999; 13(1): 45-57.
  7.  Anders S,  Armstrong CW. Conservation of Wildlife. a Bio-Economic Model of a Wildlife Reserve Under the Pressure of Habitat Destruction and Harvesting Outside the Reserve. Natural Resource Modeling. 2005; 18(1): 69-90.
  8. Alexander, Robert R,  Shields DW. The Economics of Endangered Species: The Case of the African Elephant. 1998;138.
  9. Swanson, Timothy M. The Economics of Extinction Revisited and Re- vised: a Generalised Framework for the Analysis of the Problems of Endangered Species and Biodiversity Losses. Oxford Economic Papers. 1994; 800-821.
  10. Clark CW. Profit Maximization and the Extinction of Animal Species. Journal of Political Economy. 1973; 81(4): 950-961.
  11. Millennium Ecosystem Assessment. Ecosystems and Human Well-being: Synthesis. Washington, DC: Island Press. 2005.
  12. Balmford A, Bruner A, Cooper P, Costanza R, Farber S, Green RE, Jenkins M, Jefferiss P, Jessamy V, Madden J, Munro K, Myers N, Naeem S, Paavola J, Rayment M, Rosendo S, Roughgarden J, Trumper K, Turner RK. Economic reasons for conserving wild nature. Science. 2002;297(5583):950-3. doi: 10.1126/science.1073947. PMID: 12169718.
  13.  Evan BJ, Brown D,  Robinson E. Assessment of the Solution-Orientated Research Needed to Promote a More Sustain- able Bushmeat Trade in Central and West Africa. DEFRA. London. 2002.
  14.  Charles D. On the Origin of Species. Routledge. 1859; 2004.
  15. Sarinda S. “Appetites and Aspirations: Consuming Wildlife in Laos.” 2010.
  16. William D, Salter RE,  Khounboline K. Wildlife in Lao PDR: 1999; Status Report.
  17. Jenkins RK, Keane A, Rakotoarivelo AR, Rakotomboavonjy V, Randrianandrianina FH, Razafimanahaka HJ, Ralaiarimalala SR, Jones JP. Analysis of patterns of bushmeat consumption reveals extensive exploitation of protected species in eastern Madagascar. PLoS One. 2011;6(12):e27570. doi: 10.1371/journal.pone.0027570. Epub 2011 Dec 14. PMID: 22194787; PMCID: PMC3237412.
  18. Corlett, Richard T. “The Impact of Hunting on the Mammalian Fauna of Tropical Asian Forests.” Biotropica, 2007; 39(3): 292–303.
  19. Christian F, Drouet-Hoguet N,    Se´bastien  Le  Bel.  The Role of Bushmeat in Urban Household Consumption: Insights from Bangui, the Capital City of the Central African Republic. Bois et Foreˆts des Tropiques. 2017; (332): 31-42.
  20. Liu Z, Jiang Z, Fang H, Li C, Mi A, Chen J, Zhang X, Cui S, Chen D, Ping X, Li F, Li C, Tang S, Luo Z, Zeng Y, Meng Z. Perception, Price and Preference: Consumption and Protection of Wild Animals Used in Traditional Medicine. PLoS One. 2016; 1;11(3):e0145901. doi: 10.1371/journal.pone.0145901. PMID: 26930487; PMCID: PMC4773180.
  21.  Tamsyn E, Noe¨lle F Ku¨ mpel, Milner-Gulland EJ,  Marcus Rowcliffe J. “Determinants of Urban Bushmeat Consumption in Rio Muni, Equatorial Guinea.” Biological Conservation. 2005;126(2): 206-215.
  22. Sarinda S.  Contesting Moralities: The Politics of Wildlife Trade in Laos. Journal of Political Ecology. 2008; 15(10): 1-20.
  23.    Carla M,   Blanca  Yagu¨ e,   Let´ıcia  Beltreschi,   Nathalie  Van  Vliet, Cristina Adams, Tatiana Schor, Maria Paula Quiceno-Mesa, and Daniel Cruz. “Cultural Attitudes Are Stronger Predictors of Bushmeat Consumption and Preference than Economic Factors Among Urban Amazonians from Brazil and Colombia.” Ecology and Society, 2015;20(4).
  24.  Milica S, Treydte C,  Stefan Ziegler. “Is Wild Meat Luxury? Quantifying Wild Meat Demand and Availability in Hue, Vietnam.” Biological Conservation. 2016;194: 105–112.
  25. Ricardo G, Undurraga EA, Wilkie D, Reyes-Garc´ıa V, Huanca T, Leonard WR, McDade T, Tanner S,  Vadez V. “The Effect of Wealth and Real Income on Wildlife Consumption Among Native Amazonians in Bolivia: Estimates of Annual Trends with Longitudinal Household Data (2002–2006).” Animal Conservation. 2010;13(3): 265–274.
  26. Rebecca D. Hungry for Success: Urban Consumer Demand for Wild Animal Products in Vietnam. Conservation and Society. 2011; 9(3): 247–257.
  27. Rebecca Catherine D. Identifying and Understanding Consumers of Wild Animal Products in Hanoi, Vietnam: Implications for Conservation Management. PhD diss. UCL (University College London). 2009.
  28. Chaves, Willandia A, Valle DR, Monroe MC, Wilkie DS, Sieving KE,   Sadowsky B. Changing Wild Meat Consumption: An Experiment in the Central Amazon, Brazil. Conservation Letters. 2018; 11(2): e12391.
  29. Silvia Laura C,  Nielsen MR. A comparative Study on Bushmeat Consumption Patterns in Ten Tribes in Tanzania. Tropical Conservation Science. 2014; 7(2): 272-287.
  30. Wyler, Liana S,  Sheikh PA. International Illegal Trade in Wildlife: Threats and US policy. Library of Congress Washington DC Congressional Research Service. 2008.
  31. David M,  Loveridge A. The Biology and Conservation of Wild Felids, Oxford University Press. 2010.
  32. Van Song, Nguyen. “Wildlife Trading in Vietnam: Situation, Causes, and Solutions.” Journal of Environment & Development. 2008; 17(2): 145-165.
  33.  Madhu R,  Myint T,  Zaw T,   Htun S. Hunting Patterns in Tropical Forests Adjoining the Hkakaborazi National Park, North Myanmar. Oryx. 2005; 39(3): 292-300.
  34. Anders S. Economic Modeling Approaches for Wildlife and Species Conservation. Ecological Economics. 2007; 62(2): 223-231.
  35. Gray, Thomas NE, Hughes AC,  Laurance WF, Long B,  Lynam AJ, Okelly H, Ripple WJ, Seng T, Scotson L,  Wilkinson NM. “The Wildlife Snaring Crisis: An Insidious and Pervasive Threat to Biodiversity in Southeast Asia.” Biodiversity and Conservation. 2018;27(4): 1031-1037.
  36. Bain, Raoul H, Hurley MM. A Biogeographic Synthesis of the Amphibians and Reptiles of Indochina. Bulletin of the American Museum of Natural History. 2011; 1-138.
  37.  William DJ. A Survey of Large Mammals in the Central Annamite Mountains of Laos. 1998;63: 239-250.
  38.  Ecosystem  I, Wildlife Management Project (IEWMP). Significant Wildlife and WILDLIFE Habitats of Bolikhamxay Province. 2006.
  39. Wilkie, David S,  Starkey M,  Abernethy K, Effa EN,  Telfer P,  Godoy R. Role of Prices and Wealth in Consumer Demand for Bushmeat in Gabon, Central Africa. Conservation Biology. 2005; 19(1): 268-274.
  40. Fa, John E, Juste J, Burn RW,  Broad G. Bush- meat Consumption and Preferences of Two Ethnic Groups in Bioko Island, West Africa. Human Ecology. 2002; 397-416.
  41.  Christopher H, Cooper D,  Ounmany S, Rasphone A,  Johnson A. Wildlife hunting and use near the Nam Kading National Protected Area, Bolikhamxay Province. WCS-NUOL. 2007.
  42.  Arlyne J,  Singh S,   Duongdala M. Wildlife Hunting and Use in Luangnamtha Province: Implications for Rural Livelihoods and Biodiversity Conservation. 2003.
  43. Napasirth P, Napasirth V. Current situation and future prospects for beef production in Lao People's Democratic Republic - A review. Asian-Australas J Anim Sci. 2018; 31(7):961-967. doi: 10.5713/ajas.18.0206. Epub 2018 May 24. PMID: 29807415; PMCID: PMC6039329.
  44. Sarinda S. Social Challenges for Integrating Conservation and Development: The Case of Wildlife Use in Laos. Society and Natural Resources .2008; 21(10): 952-955.
  45. Tordoff AW, Bezuijen MR, Duckworth JW, Fellowes JR, Pollard EHB, Royo AG, Mccarthy B. Indo-Burma Biodiversity Hotspot 2011 Update. Critical Ecosystem Partnership Fund. 2012.
  46. Johnson CN, Balmford A, Brook BW, Buettel JC, Galetti M, Guangchun L, Wilmshurst JM. Biodiversity losses and conservation responses in the Anthropocene. Science. 2017 Apr 21;356(6335):270-275. doi: 10.1126/science.aam9317. PMID: 28428393.
  47. Shairp R, Veríssimo D, Fraser I, Challender D, MacMillan D. Understanding Urban Demand for Wild Meat in Vietnam: Implications for Conservation Actions. PLoS One. 2016 Jan 11;11(1):e0134787. doi: 10.1371/journal.pone.0134787. PMID: 26752642; PMCID: PMC4709058.
  48. Suwannarong K, Chapman RS, Lantican C, Michaelides T, Zimicki S. Hunting, Food Preparation, and Consumption of Rodents in Lao PDR. PLoS One. 2015 Jul 21;10(7):e0133150. doi: 10.1371/journal.pone.0133150. PMID: 26196134; PMCID: PMC4511002.
  49. Schweikhard J, Kasper K, Ebert CL, Lehmann M,  Erbe  P ,  Ziegler T. TRAFFIC Bulletin 2019;31 No. 1
  50. The Australian Journal of Anthrophony. 21: 315–331.
  51. Zhang L, Hua N, Sun S. Wildlife trade, consumption and conservation awareness in southwest China. Biodivers Conserv. 2008;17(6):1493-1516. doi: 10.1007/s10531-008-9358-8. Epub 2008 Mar 21. PMID: 32214694; PMCID: PMC7088108.

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