• Title/Summary/Keyword: Doctor fish

Search Result 6, Processing Time 0.154 seconds

Mass Mortality of Doctor Fish(Garra rufa obtusa) Caused by Citrobacter freundii Infection (Citrobacter freundii 감염에 의한 Doctor fish(Garra rufa obtusa)의 집단 폐사)

  • Baeck, Gun-Wook;Kim, Ji-Hyung;Choresca, Casiano Jr.;Gomez, Dennis K.;Shin, Sang-Phil;Han, Jee-Eun;Park, Se-Chang
    • Journal of Veterinary Clinics
    • /
    • v.26 no.2
    • /
    • pp.150-154
    • /
    • 2009
  • In this paper, we described a case of mass mortality of doctor fish from a private fish hatchery farm in Korea with a history of abnormal swimming behavior, diffuse bleeding on the skin and fins and sudden death caused by fish pathogenic bacteria, Citrobacter freundii. Twelve moribund fish fingerling samples were submitted to College of Veterinary Medicine, Seoul National University in October 2008 for diagnostic examination. Diagnostic results showed that the morphological and biochemical properties of the bacteria isolated from the moribund fish were C. freundii. The remaining diseased fish from the hatchery farm were given treatment based on our recommendation and successfully recovered.

Bacteriological Study about the Death of Cultured Doctor Fish, Garra rufa in the Aquarium

  • Lee, Ji-Yoon;Gang, Nam-I;You, Jin-Sol;Ko, Chang-Yong;Lee, Ki-Won;Han, Won-Min;Kim, Eunheui
    • Journal of Marine Life Science
    • /
    • v.1 no.1
    • /
    • pp.18-24
    • /
    • 2016
  • Since April 2012, doctor fish in the breeding tank and in the quarantine tank in Hanwha Aquaplanet Yeosu Aquarium have been dying, accompanied by diffuse bleeding around the mouth, in the chin, and at the bottom of the abdomen. In this study, the cause of death would be examined through the bacteriological study of doctor fish and the rearing water quality in the aquarium. The water quality and the bacterial counts of the rearing water in the exhibit tank and in the quarantine tank were analyzed once a week, starting from August to November 2014. Water quality was measured based on the following data: temperature was in the range of 24.5~26.8℃, pH at 6.77~7.94, DO at 6.15~8.61 ppm, ammonia at 0~0.93 ppm, nitrite at 0.009~0.075 ppm, and nitrate at 1.1~40.9 ppm. Studies revealed that the differences in these water quality factors were not related to the death of doctor fish. Bacterial counts in the rearing waters of Garra rufa slightly increased to 103~104 CFU/ml, just before the death of the doctor fish. Twelve strains of bacteria were isolated from the dead fish and rearing waters. The isolates were identified as Aeromonas veronii, Citrobacter freundii, Pseudorhodoferax aquiterrae, Shewanella putrefaciens, and Vibrio anguillarum on the basis of 16S rRNA gene sequences. The most dominant species was C. freundii, which showed medium sensitivity to florfenicol and norfloxacin, and was resistant to amoxacillin, doxycycline, oxytetracycline, tetracycline, and trimethoprim. Ten isolates were confirmed to be pathogenic to the doctor fish. Doctor fish infected with C. freundii and S. putrefaciens showed high mortality in the experimental groups. These results indicate that the variation in bacterial numbers in the rearing water was related to the death of doctor fish. C. freundii and S. putrefaciens were directly implicated in causing the death of doctor fish in the aquarium.

Drying Characteristics of Minced Fish on Drum Dryers (잘게 저민 생선의 드럼건조기에 의한 건조특성)

  • Kim, Kong-Hwan;Piyarat, Warcharin
    • Korean Journal of Food Science and Technology
    • /
    • v.18 no.5
    • /
    • pp.351-356
    • /
    • 1986
  • The effects of drum spacing, steam pressure and drum speed on drying rate of minced fish flesh on both single and double drum dryers were studied. Starch additions in the form of tapioca flour up to 2.5% have been found satisfactory for aiding in sheet formation at the doctor blade. When the retention time was adjusted to maintain a constant product moisture, the highest production rate was obtained at the smallest drum spacing and the highest steam pressure within the limits of experimental conditions considered. The operating conditions suitable for producing the flakes with 5% moisture were: 100 kPa (steam pressure), 0.1 mm (drum spacing) and 3 rpm (drum speed). The production rate and overall heat transfer coefficient under these conditions were $12.1\;kg/m^2$hr and 950 $W\;/m^2K$ respectively. The drying data were fitted well to the conventional drying model, namely $MR\;=\;A\;\exp\;(-k{\theta})$, resulting in the various drying constants depending the operating conditions.

  • PDF

Compare Gout with Tongp'ung(痛風) (서양의학의 Gout와 한의학(韓醫學)의 통풍(痛風)의 비교고찰(比較考察))

  • Kim, Dong-Wook;Kim, Kap-Sung
    • Journal of Acupuncture Research
    • /
    • v.17 no.4
    • /
    • pp.100-112
    • /
    • 2000
  • Compare western medicine report and books which refer to Gout with Oriental medicine books which refer to Tongp'ung(痛風). The results of studying about Gout and Tongp'ung(痛風) were summarized as follows. l. Dangyesimbub(丹溪心法) was printed in 1481 and also the first book which referred to Tongp'ung(痛風). 2. Donwonsipjonguiso(東垣十種醫書) was printed in 1592 and also Tongp'ung(痛風) was recorded like gout especially in cause of disease. 3. Ancient times, Affection by exopathogen and six kinds of natural factors were persisted the cause of Tongpung(痛風), later generation drink, diet and labor were persisted. 4. In Beunjungrok(辨證錄) and susyebowon(壽世保元), there were similar expressions about gout, for examples interval phase and chornic tophaceous. 5. In Uihakjongjon(醫學正傳) and Manbeunghoechun(萬病回春) insisted that gout patients had to control their food especially meat, fish snd drink. 6. According to the cause(Pung(風), Han(寒), Sub(濕)), doctor classified Bi(痺) first was Hangbi(行痺), second was Tongbi(痛痺) and last was Chakbi(着痺). 7. Doctors thought that Tongp'ung(痛風,) was not Hangbi(行痺) and Chakbi(着痺) but it was Tongbi (痛痺). Especially in pain, they thought it was similar to Bakhoyeukjolp'ung(白虎歷節風).

  • PDF

Relations of Glaucoma and Dietary Pattern Factor (녹내장과 식사패턴요인의 관련성)

  • Kim, Hyojin
    • Journal of Korean Ophthalmic Optics Society
    • /
    • v.18 no.1
    • /
    • pp.61-65
    • /
    • 2013
  • Purpose: This study was performed to identify the relations between glaucoma and dietary patterns in Korean adults, aged 30 years or older. Methods: 6,453 subjects (male 2,759, female 3,694 subjects) who aged 30 years or older from the Korea National Health and Nutrition Examination Survey were included. Glaucoma was assessed based on the subjects were diagnosed by a doctor. At first, waist circumference and body mass index (BMI) were compared to investigate the association between glaucoma and obesity index. Secondly, dietary patterns using factor analysis for external blue colored fish(mackerel), seaweed(seaweed, laver), bean(bean, soybean milk), vegetables(sprout, spin, carrot, cabbage, cucumber, pepper, tomato, pumpkin) and fruits(tangerine, apple, pear, strawberry, grape, peach) were obtained. Lastly, regression analysis was used for glaucoma and emerged dietary factors. Results: In glaucoma and normal group, waist circumference and BMI were $82.25{\pm}9.96cm$ and $23.27{\pm}2.84kg/m^2$, $75.79{\pm}13.79cm$ and $22.39{\pm}4.06kg/m^2$, respectively. There was statistically significant difference (p<0.05). Three dietary patterns were emerged from the factor analysis, and factor 1 was included sprout, spin, carrot, cabbage, seaweed, cucumber, mackerel, laver. The factor 1 of dietary pattern was inversely related to the prevalence of glaucoma (OR: 0.697, 95%CI: 0.496-0.980, p=0.038), and model adjusting for age and sex was showed the same trend (OR: 0.698, 95%CI: 0.497-0.982, p=0.039). Conclusions: This study was analysed first with glaucoma and dietary pattern in Korean, and vegetables, laver and mackerel significant associated to reduce the risk of glaucoma.

Satisfaction Measurement and Needs Analysis of the Beneficiaries of the Elderly Meal Service Program (서울지역 노인 급식 프로그램 수혜자의 만족도 및 요구도 분석)

  • Seo, Hui-Jae;Hong, Min-Ji;Jang, Yeong-Ae;Kim, Bok-Hui;Lee, Haeng-Sin;Kim, Cho-Il
    • Journal of the Korean Dietetic Association
    • /
    • v.9 no.2
    • /
    • pp.114-127
    • /
    • 2003
  • In the process of devising an efficient meal service system for the elderly, 478 elderly were interviewed at 6 different social centers with the elderly meal service program in Seoul area to monitor degree of satisfaction and/or needs of the beneficiaries regarding the program. The survey was conducted during the month of December 2002 by well-trained interviewers using self-developed questionnaire. Results were analyzed statistically using SAS package program. Most of the beneficiaries were low economic class and 76% of them had doctor diagnosed disease(s). Among the beneficiaries of congregate meal service, mean score of 12 aspects of satisfaction was 3.72 out of 5. For most of the questions, female elderly and healthy elderly responded with higher score than male elderly and unhealthy elderly, respectively (p<0.05, p<0.01). On the other hand, beneficiaries of the home-delivered meal service were little bit less satisfied with the service (3.54 out of 5). Compared to the beneficiaries of congregate meal service, larger portion of beneficiaries of home-delivered meal service wanted more meats (28.5 % vs. 17.1 %) and vegetables (23.2 % vs. 12.3 %) as side dishes. On the other hand, the most preferred type of cooking and/or seasoning was stewing for both cases. Based on these findings, it is suggested that more fresh foods should be used than processed foods in the preparation of meals for the elderly and, more fish-, meat- and vegetable- dishes should be served to come up to the needs of the elderly. Onto this, mainly Korean style meals with some intermittent Western, Japanese or Chinese style meals served at the right temperature would suffice most of the elderly needs.

  • PDF