Evaluation of the performance of two strains of Nile tilapia (Oreochromis Niloticus) in mixed raising systems

Brazilian Archives of Biology and Technology

Patrícia Ribeiro Neves²  Ricardo Pereira Ribeiro²  Lauro Vargas²  Maria Raquel Marçal Natali²  Káttia Regina Maehana²  Nilton Garcia Marengoni¹ 

[1] ,Universidade Estadual de MaringáMaringá PR ,Brazil

关键词: Performance;    Strains;    Oreochromis niloticus;    Reproduction;    Nile tilapia;   

DOI  :  10.1590/S1516-89132008000300012

来源: SciELO

【 摘 要 】

The aim of this study was to evaluate the productive performance of two strains of Nile tilapia (Oreochromis niloticus) in mixed raising systems. A total of 3600 fish-larvae species was used, 1800 belonging to Bouaké lineage, and 1800 to Chitralada. The experiment was carried out in three phases; Phase I in an incubator in 18 boxes, in which two treatments (Bouaké and Chitralada) were tested by using nine repetitions; Phases II and III were performed in 18 cement tanks with the same treatments. In phase I, regarding the final weight and gain of weight, Chitralada strain showed the highest final weight values. In phase II, Chitralada showed the highest final weight value when compared with Bouaké, and, considering the gain of weight, Bouaké obtained the best result. In phase III, Chitralada showed better final weight results (104 days of raising), final weight, final length and gain of length/cm (152 days of raising); but, after 279 days of the cultivation, Bouaké showed a higher weight and length gain. These findings showed that Chitralada strain presented the best performance.

【 授权许可】

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