[Physiological response of experimental challenge of Ichthyophthirius multifiliis (Fouquet, 1876) in jundiá (Rhamdia quelen Quoy and Gaimard, 1824) fingerlings rather fed with different lipid sources]. / Resposta fisiólogica à infestação experimental com Ichthyophthirius multifiliis (Fouquet, 1876) em alevinos de jundiá (Rhamdia quelen Quoy and Gaimard, 1824) previamente alimentados com diferentes fontes lipídicas.
Rev Bras Parasitol Vet
; 17(2): 81-6, 2008.
Article
em Pt
| MEDLINE
| ID: mdl-18823575
A limiting factor in the early stage of the jundiá (Rhamdia quelen Quoy; Gaimard, 1824) culture is the presence of diseases such as ichthyophthiriasis or "Ich". Dietary polyunsaturated fatty acids (PUFAs) have a potent immunomodulatory activity; and this activity depend of the fish species, quantity/quality of the dietary PUFAS. The aim of this study was evaluate the physiologic response of jundiá, rather fed diets with different sources of fatty acids when challenge to Ich disease. Fingerlings of jundiá (7.6+/-0.8g) were fed during seven weeks with five diets with a different lipid source: fish, linseed and corn oils. Then, the fish were challenged with the Ichthyophthirius multifiliis (Fouquet, 1876). On the 5(th) day, the presence of the disease was detected. Survival rate, blood samples and infection grade were recorded. Diets affect the survival rate of fingerlings, thus fish fed with diet with fish oil showed a higher survival. Hematocrit and infestation grade no recorder differences among treatment. The differential analysis of white blood cells shows difference. The results point out, at first time in jundiá, that dietary lipids caused diversity physiologic response, this may be represent an opportunity for the disease treatment. New studies must be carrying out to deep knowledge found.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Peixes-Gato
/
Infecções por Cilióforos
/
Cilióforos
/
Dieta
/
Ácidos Graxos
Limite:
Animals
Idioma:
Pt
Revista:
Rev Bras Parasitol Vet
Assunto da revista:
MEDICINA VETERINARIA
/
PARASITOLOGIA
Ano de publicação:
2008
Tipo de documento:
Article
País de publicação:
Brasil