Open AccessFatores antinutricionais da soja crua no crescimento e respostas hematológicas da tilápia do nilo
Author(s) -
Graciela Pessoa Martins,
Luiz Edivaldo Pezzato,
Igo Gomes Guimarães,
Carlos Roberto Padovani,
Bruno Sergio Marques Mazini,
Margarida Maria Barros
Publication year - 2017
Publication title -
boletim do instituto de pesca
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.262
H-Index - 15
eISSN - 1678-2305
pISSN - 0046-9939
DOI - 10.20950/1678-2305.2017v43n3p322
Subject(s) - zoology , biology , microbiology and biotechnology , physics
This study was conducted to evaluate the effect of anti-nutritional factors of RSB (raw soybean) on hematology and growth performance of Nile tilapia (Oreochromis niloticus). The replacement was made in the levels of 0.0, 15.0, 25.0 and 35.0% of the protein in soybean meal (SBM) by the crude soy protein. In this study, the effect of replacing SBM by RSB on hematological profile and growth performance of Nile tilapia were evaluated after 90 days of feeding. Urea activity was evaluated of RSB which indicated the presence of anti-nutritional factors. The hematological parameters (erythrogram and white blood cell) were evaluated. The parameters of growth performance were also evaluated. RSB affected the weight gain, feed intake and protein retention. Additionally, an increase of neutrophil count and a decrease of albumin concentration were observed. RSB inclusion in the Nile tilapia diet changed the white blood cell number and negatively affected growth development. However, no effect on erythrogram was observed in this study. We can conclude that although the anti-nutritional factors present in RSB has interfered in the growth performance, it is recommended to use the replacement level of RSB below 35%, as it does not affect fish health.