Technical efficiency assessment and enhancement is critical to sustainable fisheries development in Nigeria. This study examines stochastic frontier of catfish aquaculture agribusiness for sustainable fisheries development. Purposive sampling technique was employed to select 110 catfish farmers in areas with high density catfish farms. Primary data were collected directly from catfish farmers using structured questionnaire. The analytical tools used were descriptive statistics, net farm income, stochastic frontier production function (SPF) and t-statistics. The result shows that most of the catfish farmers were young people within the productive age of 40-49 years. Catfish farmers had obtained various levels of formal education. Finding shows that feeds cost was the highest variable cost (72.75%). Feed had a positive and significant relationship (P<0.05) with catfish output. Mean technical efficiency is 53.49%. The estimated variance (δ2s=0.2125) is statistically significant (P<0.05), indicating that profit inefficiency is highly significant among catfish farmers. Estimated Gamma (γ) value of 0.26 implies that 26% of the total variation in catfish profit efficiency is due to the joint effect of technical inefficiency factors. The most significant efficiency factors are fish feed and pond size. The age and educational status of farmers are the most important determining factors of inefficiency in catfish production system. Lack of finance was the most serious constraint faced by catfish farmers. The study recommended that catfish farmers should form cooperative unions to facilitate their access to cooperative funding.
This study analyzes the causal and spread effects of extreme flood on food availability and affordability, as the two dimensions of food security in Nigeria. Multi-stage sampling procedure was adopted to collect primary data from 420 farming households. Statistical methods, regression model and descriptive statistics, were used to analyze data. It was found out that household mean food security index is 0.32 (32%) and it was significantly influenced by flood hazards in the short run. Results suggest that the flood hazards directly lead to a fall in the food availability, food consumption and welfare of vulnerable rural households. This indicates that the more the flood severity the more the food security challenge among indigenous farming households. Spillover (indirect) effects of flood hazards show the extent of spread of the hazards in the form of disease outbreak, increased dependency ratio, mass migration of flood victims, food scarcity and increase in prices of food stuffs.
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