RESUMO
Fish production systems in North-western Nigeria have a significant role in food, nutrition and income generations to families, yet an important setup for zoonotic disease transmission. The aim of this study was to provide a broad knowledge of the structure, activities and food safety risks of the fish value chains operating in North-western Nigeria using the value chain framework. A total of 16 focus groups and 8 key informant interviews were conducted to gather data from fish producers, fish sellers and fish processors in selected peri-urban and rural settlements in Kaduna State. In addition, 129 semi-structured questionnaires and observation checklists were used in this study to gather evidence-based data, such as demography of value chain actors, product characterization, and food safety risks. The fish value-chain in North-western Nigeria is characterised by four main stakeholders, namely, fish producers, transporters, as well as raw- and processed-fish-sellers (wholesalers, retailers). Two major sources were identified supplying farmed fish to North-western Nigeria: the distributors from the central and southern part of the country and the fish farmers within the North-western and North-eastern regions of Nigeria. Raw-fish-wholesalers within the two major markets sold most of their high-value products to raw-fish-retailers, while low-value products were routed to raw-fish-retailers in the rural communities, processed-fish-retailers and household consumers in rural settlements. There were no large companies operating and no differentiation of chains between aquaculture and wild fishery. Raw fishes not sold and began to rot were sold to street vendors at a cheaper price and household consumers. Fish production and supply chains were characterised by poor structural and sanitary support for food safety and hygiene measures. Food safety risks identified were related to lack of biosecurity measures in fish farms, lack of cold chain and access to running water, poor hygiene practices by all handlers, lack of fish inspection at all levels, lack of use of protective clothing and limited health inspection of handlers. In overall, government control of activities in fish value chains was relatively poor leading to the absence of food safety regulatory enforcement characterised by lack of institutional goals on improving food safety measures in a chain-wide distribution. Hence, this study points the significant structural, sanitary and hygiene limitations along the fish value chain components. It provides a baseline for microbial food safety risk assessments, and information required for policy-making regarding implementation of disease control programmes, as the sector is fast-evolving in Sub-Saharan Africa.