Comparative Analysis of Meat Safety Standards Between Formal and Informal Abattoirs in Lagos State

The coexistence of formal government abattoirs and informal unregistered slaughter points in Lagos State creates a dual-track meat supply chain with divergent safety implications. This study comparatively analyzed meat safety standards between formal and informal abattoirs in Lagos State, South West Nigeria. A stratified purposive sample of five formal abattoirs and ten informal slaughter points was assessed using a structured meat safety audit instrument. Microbiological swab samples from 100 carcasses per sector were analyzed for total viable counts, Enterobacteriaceae, Staphylococcus aureus, and Salmonella. Regulatory compliance documentation, inspector deployment frequency, and infrastructure adequacy were assessed in both sectors. Formal abattoirs achieved a mean audit compliance score of 61.3%, while informal slaughter points scored 22.7%. Salmonella was isolated from 12% of formal sector carcasses compared to 41% from informal slaughter points. E. coli O157:H7 was detected only in informal sector samples. Inspector deployment was regular in formal facilities but entirely absent in informal operations. The study concludes that informal slaughter in Lagos State generates substantially higher food safety risks than formal abattoirs and that the volume of meat produced through this unregulated channel necessitates urgent targeted intervention. Formalizing and registering informal slaughter points, licensing reform, inspector redeployment, and consumer awareness campaigns are recommended. Keywords: meat safety, formal abattoir, informal slaughter, Lagos State, comparative analysis