Data/hora: 22/06/2024 17:27:43

Biblioteca(s): | Embrapa Pesca e Aquicultura.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 1
Data corrente: | 06/12/2022
Data da última atualização: | 16/04/2023
Autoria: | ARAÚJO, P. A. de; MACIEL-HONDA, P. O.; COSTA-FERNANDES, T. de O.; SANTOS, G. G. dos; MARTINS, M. L.
Afiliação: | POLLYANA ALVES DE ARAUJO, UFSC; PATRICIA OLIVEIRA MACIEL, CNPASA; THAIS DE OLIVEIRA COSTA-FERNANDES; GRACIENHE GOMES DOS SANTOS, UFSC; MAURICIO LATERÇA MARTINS, UFSC.
Título: | Efficacy of chlorine, sodium chloride and trichlorfon baths against monogenean Dawestrema cycloancistrium parasite of pirarucu Arapaima gigas.
Ano de publicação: | 2023
Fonte/Imprenta: | Journal of Fish Diseases, v. 46, n. 2, p. 113-126, Feb. 2023.
ISSN: | 0140-7775
DOI: | https://doi.org/10.1111/jfd.13725
Idioma: | Inglês
Conteúdo: | This study investigated the efficacy of sodium chloride (SC) and trichlorfon (T) against Dawestrema cycloancistrium and its physiological effects on Arapaima gigas. The efficacy of chlorine (C) as a prophylactic disinfectant was also evaluated. In vitro test with 15 treatments were: SC 4, 8, 10, 12, 14 g/L, T0.1, 0.4, 0.8, 1.6, 3.2 mg/L, and C500, 1000, 3000, 6000 mg/L. Scanning electron microscopy was performed to evaluate parasite damage. The in vivo test was as follows: control, 4 h short baths, once a day, for four consecutive days (SC12 g/L, T5 mg/L); 24 h long baths, for 2 days in 24 h intervals (SC10 g/L, T5 mg/L). In vitro exposure to SC12 and 14 g/L caused 100% mortality of monogeneans at 45 and 60 min, while at T3.2 and 1.6 mg/L 100% of monogeneans died at 30 and 60 min, respectively. In vitro exposure to C resulted in complete mortality after 2?5 min exposure. The SC and T LD50?96 h were 9.9 g/L and 9.73 mg/L, respectively. All in vivo treatments presented efficacy above or close to 90%, with low survival in the long baths. C, starting at 500 mg/L for 5 min, can be used as a disinfectant. Short baths with SC12 g/L and T5 mg/L are recommended for D. cycloancistrium infestations in Arapaima.
Palavras-Chave: | Dawestrema cycloancistrium.
Thesagro: | Peixe; Pirarucu.
Thesaurus Nal: | Aquaculture; Arapaima gigas; Ectoparasites; Fish; Parasites.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
Registro original: | Embrapa Pesca e Aquicultura (CNPASA)
Exemplares: | CNPASA - (1213-1) - UPC - AP - DD - 2023 -  - 2023 - DIS