FT Vol.57(1)
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- ItemTransportation Prototype for Live Distribution of Mud Crab in Seafood Supply Chain(Society of Fisheries Technologists (India), 2020)
- ItemAnalysis of Marine Products Export from India using Markov-Chain Analysis(Society of Fisheries Technologists (India), 2020)The present study analyses the changing pattern of marine product exports from India to seven regions/ countries such as Japan, USA, European Union (E.U), China, South East Asia (SEA), Middle East (ME) and others, during two decades from 1995 to 2015. The average growth rate of marine seafood export in relation to quantity and value for the two decades was 6.78 and 12.5% respectively. Frozen shrimp export quantity had nearly 40% share in the total export basket. Instability in value was higher than the quantity of export, out of which frozen shrimp price instability was nearly 60%. Using Markov Chain Analysis, it was observed that European Union was having higher probability of retention (0.82) compared to the other regions. In the first decade Japan was the major importer with higher probability of retention which reduced from 0.91 to 0.56 during the second decade with a gain by European Union (0.87) in the same decade.
- ItemComparative Analysis of Consumer Behaviour between Traditional Fish Markets and Modern Retail Outlets in Kolkata, West Bengal(Society of Fisheries Technologists (India), 2020)The present study was conducted in Kolkata, to examine if there is any difference in consumer behavior from traditional fish markets to modern fish markets. The survey included 300 households, 150 each from the traditional fish markets and modern retail outlets. The perception study showed that 49, 70 and 61% of the respondents perceived quality, variety and price of fish as good, plenty and reasonable, respectively in traditional fish markets, while 67, 53 and 49% of the consumers perceived quality, variety and price as average, very few and very high respectively in modern retail markets. Perception index score revealed that 82.67% had perceived traditional market as good (>0.66) in the context of quality, variety and price, while modern retail outlets are perceived poor, (<0.33) by 62% of consumers. The regression adjustment model revealed that anticipated expenditure of consumer on fish and fish products was Rs. 980 more in modern retail outlets than the traditional fish markets. To enhance the efficiency and enhance consumer’s satisfaction, modern retailers should increase the variety of fishes while traditional markets need to improve hygiene.
- ItemPrevalence of Plasmid-mediated Quinolone Resistance (PMQR) Genes and Beta-lactamase Genes among Salmonella, Vibrio parahaemolyticus and Escherichia coli from Shellfish(Society of Fisheries Technologists (India), 2020)The objectives of the present study were to investigate the prevalence of plasmid-mediated quinolone-resistance (PMQR) genes and betalactamase genes in Salmonella, Vibrio parahaemolyticus and Escherichia coli from shellfish. A total of 35 Salmonella, 22 Vibrio parahaemolyticus, and 58 Escherichia coli of shellfish origin were used in this study. Antibiotic susceptibility testing of Salmonella, V. parahaemolyticus, and E. coli against different antibiotics was determined by disc diffusion method. The minimum inhibitory concentrations (MIC) of nalidixic acid and ciprofloxacin were analyzed by microdilution method for all nalidixic acid/ ciprofloxacin-resistant strains. All the isolates were screened for the presence of PMQR genes (qnrA, qnrB, qnrS, qepA, aac(6’)-Ib-cr, and oqxA) and betalactamase genes (blaTEM, blaSHV, and blaCTXM-1). The prevalence of nalidixic acid resistance was 5.7, 9, and 3.4% in Salmonella, V. parahaemolyticus and E. coli, respectively. Approximately, 4.5% of V. parahaemolyticus isolates were resistant to ciprofloxacin. The prevalence of PMQR harboring Salmonella, V. parahaemolyticus, and E. coli was 22, 9 and 3% respectively. The prevalence of betalactamase genes in Salmonella, V. parahaemolyticus, and E. coli were 17.14, 9 and 5.1%, respectively. The most prevalent PMQR and beta-lactamase genes were qnrS and blaTEM, respectively. The co-occurrence of PMQR and beta-lactamase genes in V. parahaemolyticus and Salmonella, from shellfish, poses a public health concern.
- ItemEffect of Sub-Lethal Concentration of Iron on Growth and Survival of Daphnia (Müller, 1785)(Society of Fisheries Technologists (India), 2020)In the present study the effect of iron on growth and survival of Daphnia (Müller, 1785) has been studied. Neonates of Daphnia were exposed to different water-borne iron concentrations. Although iron is toxic at high concentrations, they are also essential elements required for many biological processes. Iron is a vital metal for Daphnia for normal development and reproduction. Mass culture of Daphnia has been done in plastic tubs. During experiment, the effects of iron on Daphnia were studied at an exposure equivalent to the 48 h LC50. Based on the LC50, seven Fe2+ levels (prepared through serial dilution from a stock solution of 5 mgL-1) for the chronic toxicity tests were selected. These were 0, 0.25, 0.50, 1.00, 2.00, 4.00 and 8.00 mg L-1of Fe2+. The population density of Daphnia increased with increase of sub-lethal dosages of iron and decreased significantly at higher toxic dosages, indicating that iron is required as micronutrients for stimulating growth in terms of population density.