Data/hora: 14/05/2024 02:46:49

Biblioteca(s): | Embrapa Agropecuária Oeste; Embrapa Pesca e Aquicultura.
Data corrente: | 12/12/2016
Data da última atualização: | 12/12/2016
Autoria: | MELO, J. F. B.; LUNDSTEDT, L. M.; INOUE, L. A. K.; METÓN, I.; BAANANTE, I. V.; MORAES, G.
Afiliação: | J. F. B. MELO, UNIVERSIDADE FEDERAL DO VALE DO SÃO FRANCISCO - UNIVASF - Petrolina-PE; LICIA MARIA LUNDSTEDT, CNPASA; LUIS ANTONIO KIOSHI AOKI INOUE, CPAO; I. METÓN, UNIVERSIDAD DE BARCELONA; I. V. BAANANTE, UNIVERSIDAD DE BARCELONA; G. MORAES, UFSCar-São Carlos, SP.
Título: | Glycolysis and gluconeogenesis in the liver of catfish fed with different concentrations of proteins, lipids and carbohydrates.
Ano de publicação: | 2016
Fonte/Imprenta: | Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v. 68, n. 5, p. 1251-1258, 2016.
DOI: | 10.1590/1678-4162-8337
Idioma: | Inglês
Conteúdo: | The activities of enzymes from a number of metabolic pathways have been used as a tool to evaluate the best use of nutrients on fish performance. In the present study the catfish Rhamdia quelen was fed with diets containing crude protein-lipid-carbohydrate (%) as follows: treatment (T) T1: 19-19-44; T2: 26-15-39; T3: 33-12-33; and T4: 40-10-24. The fish were held in tanks of re-circulated, filtered water with controlled temperature and aeration in 2000L experimental units. The feeding experiment lasted 30 days. The following enzymes of the carbohydrate metabolism were determined: Glucokinase (GK), Phosphofructokinase 1 (PFK-1), Pyruvate kinase (PK), Fructose-1,6-biphosphatase 1 (FBP-1). The activities of 6 phosphogluconate dehydrogenase (6PGDH) and glucose 6 phosphate dehydrogenase (G6PDH) were also assayed. The influence of nutrient levels on the enzyme activities is reported. The increase of dietary protein plus reduction of carbohydrates and lipids attenuates the glycolytic activity and induces hepatic gluconeogenesis as a strategy to provide metabolic energy from amino acids. The fish performance was affected by the concentrations of protein, lipid and carbohydrates in the diet. The greatest weight gain was obtained in fish fed diet T4 containing 40.14% of crude protein, 9.70% of lipids, and 24.37% of carbohydrate, respectively.
Thesagro: | Bagre; Enzima; Metabolismo; Nutriente; Peixe; Proteina.
Thesaurus Nal: | Catfish; Enzymes; Fish; Fish nutrition; Metabolism.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/151604/1/CNPASA-2016-abmvz.pdf
Registro original: | Embrapa Pesca e Aquicultura (CNPASA)
Exemplares: | CNPASA - (438-1) - UPC - AP - DD - CNPASA_AP43 -  - 2016.043 - DIS