Oxytetracycline water bath treatment of juvenile blue abalone Haliotis fulgens (Philippi 1845) affected by the withering syndrome
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| Format: | Artículo científico |
| Langue: | en |
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Universidad Autónoma de Baja California
2011
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| _version_ | 1876440706750349312 |
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| author | Z García-Esquivel |
| author_facet | Z García-Esquivel |
| contents | Oxytetracycline water bath treatment of juvenile blue abalone Haliotis fulgens (Philippi 1845) affected by the withering syndrome Z García-Esquivel J Cáceres-Martínez S Montes-Magallón Ciencias de la Tierra Blue abalone oxytetracycline Haliotis fulgens withering syndrome The fatal abalone disease named withering syndrome (WS), caused by a Rickettsiales-like prokaryote classified as Xenohaliotis californiensis, has been treated by injections and oral administration of oxytetracycline (OTC) with relatively successful results. These therapeutic treatments have practical limitations for their application in aquacultural and experimental facilities due to the inability to eat of severely ill organisms, and the need to incorporate the antibiotic in pelletized food, increasing production costs. During an experiment to determine the effect of photoperiod and temperature on the growth of juvenile blue abalone Haliotis fulgens, some animals showed overt symptoms of WS. Oxytetracycline baths at 400 mg L¡V1 were used for one hour daily during seven days to treat diseased animals. The metabolic rate of one group of these organisms was also assessed. Recovery time (time for an organism to regain the upright position) and size were assessed on days 0, 14, and 29. By the third day of treatment, most treated animals regained a limited adhesion capacity, and began to ingest food and to produce feces. After one week, more than 50% of the treated abalone were capable of regaining the upright position within the first 10 min of being turned upside down. After 30 days all organisms showed strong adhesion to the substrate. Metabolic rate declined from 380 (initially) to 280 micro L O2 ind¡V1 h¡V1 after two weeks of treatment. This study opens the door for further research on the use of OTC baths for practical use in abalone culture and management. 2011 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48020772006 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.2 Vol.37 |
| format | Artículo científico |
| id | redalyc_48020772006 |
| institution | Redalyc |
| language | en |
| publishDate | 2011 |
| publisher | Universidad Autónoma de Baja California |
| spellingShingle | Oxytetracycline water bath treatment of juvenile blue abalone Haliotis fulgens (Philippi 1845) affected by the withering syndrome Z García-Esquivel Ciencias de la Tierra Blue abalone oxytetracycline Haliotis fulgens withering syndrome Oxytetracycline water bath treatment of juvenile blue abalone Haliotis fulgens (Philippi 1845) affected by the withering syndrome Z García-Esquivel J Cáceres-Martínez S Montes-Magallón Ciencias de la Tierra Blue abalone oxytetracycline Haliotis fulgens withering syndrome The fatal abalone disease named withering syndrome (WS), caused by a Rickettsiales-like prokaryote classified as Xenohaliotis californiensis, has been treated by injections and oral administration of oxytetracycline (OTC) with relatively successful results. These therapeutic treatments have practical limitations for their application in aquacultural and experimental facilities due to the inability to eat of severely ill organisms, and the need to incorporate the antibiotic in pelletized food, increasing production costs. During an experiment to determine the effect of photoperiod and temperature on the growth of juvenile blue abalone Haliotis fulgens, some animals showed overt symptoms of WS. Oxytetracycline baths at 400 mg L¡V1 were used for one hour daily during seven days to treat diseased animals. The metabolic rate of one group of these organisms was also assessed. Recovery time (time for an organism to regain the upright position) and size were assessed on days 0, 14, and 29. By the third day of treatment, most treated animals regained a limited adhesion capacity, and began to ingest food and to produce feces. After one week, more than 50% of the treated abalone were capable of regaining the upright position within the first 10 min of being turned upside down. After 30 days all organisms showed strong adhesion to the substrate. Metabolic rate declined from 380 (initially) to 280 micro L O2 ind¡V1 h¡V1 after two weeks of treatment. This study opens the door for further research on the use of OTC baths for practical use in abalone culture and management. 2011 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48020772006 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.2 Vol.37 |
| title | Oxytetracycline water bath treatment of juvenile blue abalone Haliotis fulgens (Philippi 1845) affected by the withering syndrome |
| topic | Ciencias de la Tierra Blue abalone oxytetracycline Haliotis fulgens withering syndrome |
| url | https://www.redalyc.org/articulo.oa?id=48020772006 |