Application of the taguchi’s loss function in the breeding of nile tilapia fed with different levels of alcohol yeast

Brazilian Archives of Biology and Technology

Vandir Medri¹  Geni Varéa Pereira²  Júlio Hermann Leonhardt² 

[1] ,Universidade Estadual de Londrina Departamento de Matemática Aplicada Londrina PR

关键词: quality;    ration;    Taguchi;    tilapia;    yeast;   

DOI  :  10.1590/S1516-89132000000100011

来源: SciELO

【 摘 要 】

Studies were conducted to evaluate the effect of 10%, 20% and 30% ration substitutions for distillery yeast on the function Taguchi’s loss using two hundred and forty 45-day-old fingerlings of Nile tilapia (Oreochromis niloticus), sexually reverted with an initial average weight of 1.25 ± 0.14 g placed in amianthus box.. The average results obtained for the limnological parameters of the water quality control through chemical analysis were considered normal. Taguchi’s losses for the total production, for the dead and discarded fishes did not show correlation for the different levels of alcohol yeast inclusion, showing that the choice of the yeast level in the ration for these fishes depended on its availability and occasional cost. It was observed that the losses, specially those in the amianthus boxes, could be attributed to the density limitation, absence of natural feeding and great dispersion in the fishe size.

【 授权许可】

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