%0 Journal Article
%T Growth and gastrointestinal indices in Nile tilapia fed with different diets
%A Moreira
%A Ricardo Lafaiete
%A Silveira
%A Lucas Pinheiro
%A Teixeira
%A Erivania Gomes
%A Moreira
%A Antonio Glaydson Lima
%A Moura
%A Pl¨¢cido Soares de
%A Farias
%A Wladimir Ronald Lobo
%J Acta Scientiarum. Animal Sciences
%D 2012
%I Scientific Electronic Library Online
%R 10.4025/actascianimsci.v34i3.13327
%X the adequate diet of nile tilapia in their growth early stages is fundamental to the success of culture subsequent stages. the goal of the present work was to evaluate the nile tilapia growth fed with different diets, and to morphometrically characterized the gastrointestinal tract of this species. the treatments consisted of three diets: (d1) natural food, (d2), commercial feed and (d3) commercial feed + natural food. in the qualitative phytoplankton analysis, there was greater representation of the genus chlorella, while zooplankton community analysis revealed greater number of brachionus rotifer. growth and survival in d2 and d3 did not reveal differences (p > 0.05), while in d1, the results were significantly lower (p < 0.05). the gastro-somatic and entero-somatic indices, and the intestinal quotient revealed higher values when only natural food was available. nile tilapia reached best zootechnical performance when commercial feed was included in the diet. the intake of natural and/or artificial food is related to the growth and development of the gastrointestinal indices, emphasizing that these indicators can be altered by the type of feeding.
%K oreochromis
%K diets
%K natural food
%K plankton
%K digestive tract.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1807-86722012000300002&lng=en&nrm=iso&tlng=en