Original Scientific Article
Survey of Saprolegnia sp. in cage cultured carp in Tikves Lake in 2005 and 2006
Aleksandar Cvetkovic * ,
Miso Hristovski ,
Slavco Mrenoski ,
Iskra Cvetkovic

Mac Vet Rev 2007; 30 (1): 29 - 32

639.3.[597.551.2-12.582.244.1(497.7)-2005/06

Received: 15 October 2007

Received in revised form: 15 October 2007

Accepted: 15 October 2007

Available Online First: 15 October 2007

Published on: 15 March 2007

Correspondence: Aleksandar Cvetkovic, acvetkovic@fvm.ukim.edu.mk
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Abstract

Fish cage culture is one of the most intensive and productive aquaculture methods. Besides all production advantages, this system is facing with health problems in cultured fish due to lack of prophylactic measures and increased disease susceptibility as a result of the culture technology. In order to determine the presence of the Saprolegniosis in the warm water cage culture systems, a two year monitoring was conducted. The survey included investigation in 12 carp (Cyprinus carpio) cage culture systems in Tikves Lake in the period 2005 and 2006. The objects of examination were only the growing categories of carp (yearlings). From each farm 30 specimens were examined. The survey included clinical and pathological examination as well as routine laboratory diagnostics – microscopic examination and isolation of the agent on fungal specific nutrient agar. The conducted research, demonstrated 91,66% prevalence of the causitive agent in the investigated farms in 2005 and the prevalence of 33,33% in 2006. Although the disease was present in 2005 and 2006, obtained results demonstrated deviation in the appearance and presence of Saprolegnia sp. in the investigated period. The determined difference was a consequence of the applied ichtyotechnical and ichtyosanitary prophylactic measures, resulting with significantly lower prevalence in 2006. 

Keywords: carp, cage culture, saprolegniosis


References


Citation Information

Macedonian Veterinary Review. Volume 30, Issue 1, Pages 29-32, p-ISSN 1409-7621, 2007