Muhammed Kasım Aydın

This study was conducted to determine the fish consumption habits in Diyarbakır province and the reasons that influence these habits. A questionnaire survey was carried out on a total of 3310 individuals, consisting of 1910 males and 1400 females, in the center and districts of Diyarbakır. According to the results, it was found that 16% of the respondents consumed fish and the most preferred fish were anchovy (30.81%) and carp (25.98%). When buying fish, 40.04% of people said that they preferred it to be cheap and 20.63% said that they preferred it to be tasty. The study concluded that the majority of fish consumption occurs during the winter season. The primary reasons for not consuming fish, as indicated by the respondents, were the high price (42.38%) and a lack of purchasing power (38.42%). Looking at the monthly consumption of individuals, 49.78% consume less than 1kg of fish. As a result of the study, it was found that fish consumption in Diyarbakır province is far below the national and world average. In addition to socio-economic reasons, this situation is thought to be due to the fact that fish cannot be consumed in all seasons because the city is far from the sea coast. In addition, the rate of aquaculture and consumption of aquaculture products in Turkey is quite low. In this context, the consumption of aquaculture products should be increased.

The present study aimed to detect Flavobacterium psychrophilum in fish samples collected from rainbow trout (Oncorhynchus mykiss Walbaum 1792) farms in the Southeastern Anatolia region of Türkiye by means of bacteriological culture and polymerase chain reaction and to investigate the antibiotic susceptibility of the causative bacteria. A total of 40 trout farms located in Diyarbakır, Adıyaman, Şanlıurfa, and Batman provinces were visited, and 1200 samples were examined. During January and February 30 fish with an average live weight of 200–250 g were collected from each farm. Samples were obtained from the liver, spleen, kidneys, and tissues following macroscopic laboratory examination of the specimens. Antibiotic treatment is the treatment of choice owing to the lack of an effective vaccine in the control of the disease. Therefore, it is important to rapidly identify the bacterial species and investigate its susceptibility to antibiotics. In this study, the causative bacteria were detected in 5 out of 40 farms. The causative bacteria infected the liver, kidney, and tissues. The sensitivity of Enrofloxacin (5 microgram (µg)), Florfenicol (30µg), Neomycin (5µg), Amoxicillin (25µg), Oxytetracycline (30µg), Erythromycin (10µg), Gentamycin (5µg), Streptomycin (5µg) and Nalidixic acid (10µg) were defined at chancing ratios. In conclusion, these bacteria were detected in regional farms, which should minimize the stress factors by avoiding overstocking and following the required hygiene rules.

El presente estudio tuvo como objetivo detectar la bacteria Yersinia ruckeri en muestras de pescado recolectadas de las granjas de trucha arco iris (Oncorhynchus mykiss, Walbaum, 1792) en la región de Anatolia del sudeste de Turquía a través del cultivo bacteriológico y la reacción en cadena de la polimerasa. Además, también tenía como objetivo determinar la susceptibilidad antibiótica de la bacteria. Se realizaron visitas separadas a las instalaciones de cultivo de truchas en Diyarbakır, Adıyaman, Şanlıurfa y Batman en enero y febrero de 2021, y se recolectaron 30 peces con un peso vivo promedio de 200 a 250 g en cada instalación. Se tomaron un total de 1.200 muestras de 40 criaderos de truchas. Se recolectaron especímenes de hígado, bazo, riñón y tejido de trucha arcoíris. Se aisló Yersinia ruckeri del riñón, el hígado y el tejido de pescado en Agar McConkey para realizar exámenes bacteriológicos. Las cepas aisladas fueron identificadas por MALDİ–TOF y PCR. Se detectó el agente bacteriano en muestras de hígado, riñón y músculo tejido de peces en 23 de 40 granjas. En conclusión, estas bacterias fueron detectadas en granjas locales. Estas granjas deben implementar la vacunación, minimizar los factores de estrés que afectan a los peces y evitar el exceso de la sobre población. Los mejores métodos para protegerse contra la infección incluyen evitar la alta densidad los bajos niveles de oxígeno y la mano de obra poco calificada.