Artículos de revistas
Histopathological alterations in liver of Nile tilapia supplemented with selenomethionine
Fecha
2016-03-01Registro en:
Pesquisa Agropecuaria Brasileira. Brasilia Df: Empresa Brasil Pesq Agropec, v. 51, n. 3, p. 288-291, 2016.
0100-204X
10.1590/S0100-204X2016000300012
S0100-204X2016000300288
WOS:000379957900012
S0100-204X2016000300288.pdf
Autor
VB Alimentos Ind & Comercio Ltda
Universidade Estadual Paulista (Unesp)
Universidade Federal Fluminense (UFF)
Fed Univ Para
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
Institución
Resumen
The objective of this work was to evaluate the effects of selenomethionine supplementation on liver histopathology of Nile tilapia (Oreochromis niloticus). Selenomethionine was added to the base diet (without supplementation) at the concentrations of 0.25, 0.50, 1.0, and 1.50 mg kg(-1), which consisted of five treatments, with four replicates. After 90 days of experiment, hepatic lipid degeneration was observed in the liver of the animals that received diet without supplementation, indicating selenium deficiency. However, the animals that received above 1.0 mg kg(-1) showed hypertrophy, glycogen accumulation, cordonal disarrangement, foci of necrosis and lipid peroxidation in the liver. Selenium is essential for Nile tilapia nutrition; however, concentrations above 1.0 mg kg(-1) selenomethionine impair the liver metabolism.