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水產研究(1993年創刊)

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  • 日期: 2019-05-20
水產研究(1993年創刊)-屏東縣佳冬鄉養殖石斑魚疾病之盛行率研究
主題: 屏東縣佳冬鄉養殖石斑魚疾病之盛行率研究
摘要(中):
屏東縣佳冬鄉為臺灣養殖石斑養成階段之重鎮,為能忠實呈現臺灣養殖石斑養成階段困擾養殖漁民之魚病問題,本研究於101年1月至10月間,在當地每日受理養殖漁民送檢罹病石斑病例,經水質檢測及例行臨床檢查後,採集樣本並後送至實驗室進行病理學及分子生物學診斷,所有實驗結果進行分析統計後,建立101年度養殖石斑疾病盛行率資料。本研究共收集965場罹病石斑病例,依水質、寄生蟲性、細菌性、病毒性疾病及其他等5個項目進行疾病盛行率分析,結果顯示水質不良佔47.56%、寄生蟲性疾病佔45.49%、細菌性疾病佔36.17%、病毒性疾病佔6.01%,其他無法確診病例佔12.75%。水質不良的原因主要為水中亞硝酸濃度、氨濃度、有機質濃度過高及水中酸鹼值不正常;寄生蟲性疾病盛行率由高而低為:海水白點蟲症、指環蟲症、車輪蟲症、海水魚虱侵擾症、魚蛭侵擾症、杯狀蟲侵擾症、卵圓鞭毛蟲症、異形吸蟲侵擾症,除海水白點蟲症好發於低水溫季節外,其他寄生蟲性疾病常伴隨水質不良而發生;細菌性疾病依體外及體內感染而區分為細菌性皮膚炎及全身性感染,各佔349例及41例而分別以海水弧菌及鏈球菌感染為主,二者發生率明顯在高水溫季節時為較高;病毒性疾病共有58例,包括有虹彩病毒及神經壞死病毒二種病原,因受限於仔稚魚送檢病例數少,故病毒檢出大多為虹彩病毒,而實驗結果指出,虹彩病毒感染症常爆發於高水溫季節。
出版日期: 2014/12/25
標題title(英): Prevalence Rates of Diseases Among Farmed Grouper in Jiadong Township, Pingtung County
作者: 張志堅‧林上海‧黃美瑩‧林金榮‧張錦宜‧賴秀穗
卷別: 22
期別: 2
頁碼: 35-44
作者 auther(英): Chih-Chien Chang, Shang-Hai Lin, Mei-Ying Huang, King-Jung Lin, Chin-I Chang and Shiow-Suey Lai
摘要abstract(英): Jiadong Township in Pingtung County is a high-density grouper raising area for growing out farmed grouper. In order to determine the disease-related problems that occur during the grow-out phase, we accepted cases for examination submitted by fish farmers from January to October of 2012. After finishing routing water quality measurements and clinical examinations, we also collected and sent samples to the laboratory and carried out subsequent pathological and molecular diagnosis. All the experimental data were analyzed in order to establish farmed grouper disease prevalence data. We collected 965 diseased grouper cases and categorized the data into types of poor water quality, parasitic disease, bacterial disease, viral disease and others. The disease prevalence rates ranging from highest to lowest were poor water quality (47.56%), parasitic disease (45.49%), bacterial disease (36.17%), others (12.75%) and viral (6.01%). The main reasons for the poor water quality were high nitrite concentrations, high ammonium concentrations, high organic matter concentrations and abnormal pH values. The prevalence rates of parasitic diseases from highest to lowest were Cryptocaryonosis, Datylogyriasis, Trichodinosis, sea lice infestation, leech infestation, Ambiphrya infestation, Amyloodiniosis, and Centrocestus infestation. Cryptocaryonosis was commonly found during the low-temperature season, and other kinds of parasitic diseases usually were associated with poor water quality. The bacterial diseases were divided into bacterial dermatitis (349 cases) and systemic infection/peritonitis (41 cases) based on external and internal infections, which were caused by Vibrio and Streptococcus, respectively. These two bacterial diseases were common during the high-temperature season. The total number of viral disease cases was 58, including cases caused by iridovirus and nervous necrosis virus. Among the cases, most were iridovirus. It also indicated the iridovirus infection commonly breaks out during the high-temperature season.
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