Título:	Hematological responses of tambaqui Colossoma macropomum (Serrassalmidae) fed with diets supplemented with essential oil from Mentha piperita (Lamiaceae) and challenged with Aeromonas hydrophila.
Autoria:	RIBEIRO, S. C. CASTELO, A. S. SILVA, B. M. P. da CUNHA, A. da S. PROIETTI JÚNIOR, A. A. YOSHIOKA, E. T. O.
Afiliação:	SUZANA CORDEIRO RIBEIRO, UNIFAP ANTONIELSON SILVA CASTELO, CPAF-AP BRUNA MARJARA PICANÇO DA SILVA, CPAF-AP ANDREZA DA SILVA CUNHA, CPAF-AP ALDO APARECIDO PROIETTI JÚNIOR, UNIFAP ELIANE TIE OBA YOSHIOKA, CPAF-AP.
Ano de publicação:	2016
Referência:	Acta Amazonica, Manaus, v. 46, n. 1, p. 99-106, 2016.
Conteúdo:	In fish farmings, diseases can be reduced by using immunostimulants. The aim of this study was to evaluate the immunostimulant potential of Mentha piperita in tambaqui fed with 0, 0.5, 1.0 and 1.5% of oil per kg of commercial fish feed. The fish were inoculated with Aeromonas hydrophila to challenge them. Hematological and biochemical parameters were determined after 30 days of feeding and seven days after the challenge. There was no mortality and M. piperita oil did not influence fish production parameters. However, blood hemoglobin concentration (Hb) increased in the fish fed with 0.5 and 1.5% of oil per kg of diet; albumin increased in those fed with 1.0%; cholesterol increased in all groups with oil; and triglycerides increased in those fed with 0.5%. After the bacterial challenge, the fish showed decreases in Hb when fed with diet enriched with 1.5% oil per kg of diet, in mean corpuscular volume with 1.0% and in mean corpuscular hemoglobin concentration with 0 and 1.5%. Protein levels increased in groups with 0 and 1.5% of oil and albumin when fed with 0 and 1.0%; cholesterol levels increased in the control group; and high levels of triglycerides were observed in the groups with 0, 0.5 and 1.5%. Thus, M. piperita essential oil promoted hematological alterations in tambaqui and can be recommended in diets containing up to 1.0% per kg, because of the minimal physiological modifications caused. However, additional studies are necessary to obtain more information regarding to the physiological effects of this immunostimulant.
Thesagro:	Peixe de água doce
NAL Thesaurus:	biochemistry freshwater fish immune system
Palavras-chave:	Natural product Bacterial challenge
Digital Object Identifier:	http://dx.doi.org/10.1590/1809-4392201501284
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPAF-AP)