In vitro assessment of the antiparasitic effect of caprylic acid against several fish parasites

• Published in: Aquaculture Vol. 200; no. 3; pp. 251 - 258
• Main Authors: Hirazawa, Noritaka, Oshima, Syun-ichirou, Hata, Kazuhiko
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 03.09.2001; Elsevier Science; Elsevier Sequoia S.A
• Subjects: Acids; Antibiotics. Antiinfectious agents. Antiparasitic agents; Antiparasitic agents; Antiparasitic effect; Benedenia seriolae; Biological and medical sciences; Caprylic acid; Ciliophora; Cryptocaryon irritans; Fish; fish culture; fish diseases; Kudoa shiomitsui; Marine; Medical sciences; Monogenea; Myxosporea; Parasites; Pharmacology. Drug treatments; Pseudocaligus fugu; Caprylic acid; Kudoa shiomitsui; Cryptocaryon irritans; Antiparasitic effect; Benedenia seriolae; Pseudocaligus fugu; Protozoa; Host parasite relation; Monogenea; Farming animal; Plathelmintha; Host; In vitro; Octanoic acid; Biological activity; Cnidosporidia; Crustacea; Marine environment; Vertebrata; Sparus aurata; Myxosporidia; Arthropoda; Pisces; Parasiticid; Pisciculture; Copepoda; Helmintha; Ciliata; Parasitism; Invertebrata
• ISSN: 0044-8486; 1873-5622
• DOI: 10.1016/S0044-8486(01)00529-4

The antiparasitic effect of caprylic acid against several fish parasites, i.e., the ciliate Cryptocaryon irritans (theronts), monogenean Benedenia seriolae (oncomiracidia and adults), copepod Pseudocaligus fugu (copepodids and adults) and myxosporean Kudoa shiomitsui (spores), was examined by in vitro trials. Caprylic acid at a concentration of 1 mM had a parasiticidal effect against C. irritans theronts, B. seriolae oncomiracidia and K. shiomitsui spores and a contractile effect against B. seriolae adults, but had no clear effect against P. fugu copepodids and adults. These results suggest that caprylic acid may have an antiparasitic effect against various fish parasites, including parasites classified as monogenea, ciliates and myxosporea.