Data/hora: 05/06/2024 03:37:25

Biblioteca(s): | Embrapa Amapá.
Data corrente: | 08/12/2020
Data da última atualização: | 31/03/2021
Autoria: | DIAS, M. K. R.; YOSHIOKA, E. T. O.; RODRIGUEZ, A. F. R.; RIBEIRO, R. A.; VIANA, F. S. E. D.; OZÓRIO, R. O. A.; TAVARES-DIAS, M.
Afiliação: | MARCIA KELLY REIS DIAS, UNIFAP. PPG em Biodiversidade Tropical; ELIANE TIE OBA YOSHIOKA, CPAF-AP; ANSELMO FORTUNATO RUIZ RODRIGUEZ, UFAC; RICARDO AMARAL RIBEIRO, UFAC; FERNANDO SÉRGIO ESCÓCIO DRUMMOND VIANA, UFAC; RODRIGO OTÁVIO ALMEIDA OZÓRIO, CIIMAR; MARCOS TAVARES DIAS, CPAF-AP.
Título: | Growth and hematological and immunological responses of Arapaima gigas fed diets supplemented with immunostimulant based on Saccharomyces cerevisiae and subjected to handling stress.
Ano de publicação: | 2020
Fonte/Imprenta: | Aquaculture Reports, v. 17, p. 1-6, July 2020.
Idioma: | Inglês
Conteúdo: | Saccharomyces cerevisiae is rich in bioactive ingredients and nutrients such as essential amino acids, peptides, cell wall carbohydrates, nucleotides and B vitamins. Diets with this immunostimulant product may offer improves in growth performance and immune of farmed fish. This study evaluated the effects of a commercial immunostimulant based on S. cerevisiae on growth performance, hematology and immunity of Arapaima gigas subjected to handling stress after 30 days of supplementation (0, 4, 6 and 8 g kg&#8722;1). Diet with 6 and 8 g kg&#8722;1 of immunostimulant increased final biomass, final length, body weight gain, daily weight gain, daily feed intake, specific growth and decreased the cholesterol levels. After handling stress, supplemented fish with 4, 6 and 8 g kg&#8722;1 of immunostimulant had increase in glucose levels and decrease in globulin levels, while supplemented fish with 4 and 6 g kg&#8722;1 had decrease in cholesterol, and supplemented fish with 4 and 8 g kg&#8722;1 in globulin levels. Protein levels decreased in supplemented fish with 4 g kg&#8722;1, while hematocrit decreased in all treatments and lymphocytes number and burst respiratory of leukocytes decreased in supplemented fish with 8 g kg&#8722;1 and submitted to handling stress. For A. gigas, since 6 to 8 g kg&#8722;1 of immunostimulant has not negative impacts on the hematological and biochemical parameters, thus such concentrations may be used as a growth promoter in A. gigas.
Palavras-Chave: | Aditivo alimentar; Feed additive.
Thesagro: | Aquicultura; Hematologia; Peixe de Água Doce.
Thesaurus Nal: | Aquaculture; Blood; Freshwater fish.
Categoria do assunto: | S Ciências Biológicas
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/218957/1/CPAF-AP-2020-Growth-and-hematological-and-immunologica.pdf
Registro original: | Embrapa Amapá (CPAF-AP)
Exemplares: | CPAF-AP - (18324-1) - UPC - AP - DD -  -  -  - DIS