Show simple item record



Item Description

dc.contributor.author Laredo, B.S. en_US
dc.contributor.author Ocampo, C.L. en_US
dc.contributor.author Sumano, L.H. en_US
dc.date.accessioned 2012-01-19T20:20:55Z en_US
dc.date.available 2012-01-19T20:20:55Z en_US
dc.date.issued 2007 en_US
dc.identifier.citation Laredo, B.S., Ocampo, C.L., & Sumano, L.H. (2007). Antibacterial Activity of Oxytetracycline Hydrochloride, Environmentally-Protected or Not, after Feed-Pelleting and during Decay-Dispersion in Saline Water. The Israeli Journal of Aquaculture - Bamidgeh, 59(3), 168-174. en_US
dc.identifier.issn 0792-156X en_US
dc.identifier.uri http://hdl.handle.net/10524/19221 en_US
dc.description.abstract Bivalent and trivalent cations quelate oxytetracyline (OTC), rendering it microbiologically inac- tive. Yet shrimp diseases are often treated with OTC in pelleted feeds. Attempts have been made to chemically protect the OTC concentration in shrimp feeds against degradation in brack- ish water and due to temperature. The antibacterial activity of two such environmentally-protect- ed OTC preparations (premixes A and B) and one unprotected OTC premix (C) were tested (a) before and after pelleting the OTC premixes with the powdered feed ingredients and (b) during decay-dispersion of the OTC-medicated feed in brackish water. In all three treatments, the OTC concentration dropped by approximately half after pelleting (p<0.001). When pellets were placed in tanks containing water of 23-25°C, pH 7.6-7.8, and marine salt (40 g/l), a second order expo- nential decay of antibacterial activity followed, reaching 50% in 30 min. At 150 min, loss reached 80% in group A, 85% in group B, and 98% in group C, suggesting that only environmentally-pro- tected OTC may, in some cases, reach the minimal therapeutic concentration necessary to treat Vibrio spp. diseases. en_US
dc.format.extent 7 pages en_US
dc.publisher Israeli Journal of Aquaculture - BAMIGDEH en_US
dc.relation.ispartofseries The Israeli Journal of Aquaculture - Bamidgeh en_US
dc.subject oxytetracycline, shrimp, decay-dispersion, medicated pelleted feed en_US
dc.subject.lcsh Fish culture--Israel--Periodicals. en_US
dc.subject.lcsh Fish culture--Periodicals. en_US
dc.subject.lcsh Aquaculture--Israel--Periodicals. en_US
dc.subject.lcsh Aquaculture--Periodicals. en_US
dc.title Antibacterial Activity of Oxytetracycline Hydrochloride, Environmentally-Protected or Not, after Feed-Pelleting and during Decay-Dispersion in Saline Water en_US

Item File(s)

Files Size Format View
59_3_Laredo.pdf 315.6Kb PDF View/Open

This item appears in the following Collection(s)

Show simple item record

Search


Advanced Search

Browse

My Account

Statistics

About