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Utilização do ciclo luminoso como indutor do crescimento de camarões Penaeus japonicus
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Advisor(s)
Abstract(s)
O objectivo deste trabalho foi induzir um aumento da taxa de crescimento no camarão
Penaeus japonicus através da manipulação do regime luminoso. Os regimes luminosos
utilizados foram : control (12 horas luz : 12 horas escuridão ou 12L;12E) ; 3C (6L:2E) (3 ciclos
por dia) ; 4C (4L:2E) ; OC (0L:24E).
Os resultados indicaram que o grupo 3C apresentou um crescimento em peso
significativamente maior que os outros três grupos. Além disto, nota-se um aumento na taxa
de crescimento que é progressivamente maior no sentido : control => OC => 4C 3C.
Estes resultados demonstram que o regime luminoso influencia o crescimento e que é
possível desenvolver regimes que promovam um crescimento mais rápido do crescimento de
Penaeus japonicus e, provavelmente, de outros Peneídeos.
The aim of this experiment was to induce a higher growth rate of the shrimp Penaeus japonicus through manipulation of the light regimen. The light regimens used were: control (12 hours light :12 hours darkness or 12L:12E) ; 3C (6L:2E) (3 cycles a day) ; 4Ç (4L;2E) ; OÇ (0L:24E). Results show that the growth of group 3C was statistically higher than the other three groups. An other important result is that it was registed a progressive higher growth in the sequence : control => OC => 4C => 3C. Those results show that the light regimen act overthe growth rate and that it is possible to develop light regimens wich promote a higher growth of Penaeus japonicus, and probably of other Penaeids.
The aim of this experiment was to induce a higher growth rate of the shrimp Penaeus japonicus through manipulation of the light regimen. The light regimens used were: control (12 hours light :12 hours darkness or 12L:12E) ; 3C (6L:2E) (3 cycles a day) ; 4Ç (4L;2E) ; OÇ (0L:24E). Results show that the growth of group 3C was statistically higher than the other three groups. An other important result is that it was registed a progressive higher growth in the sequence : control => OC => 4C => 3C. Those results show that the light regimen act overthe growth rate and that it is possible to develop light regimens wich promote a higher growth of Penaeus japonicus, and probably of other Penaeids.
Description
Dissertação de mest. em Aquacultura, Unidade de Ciências e Tecnologias dos Recursos Aquáticos, Univ. do Algarve, 1997
Keywords
Aquacultura Crescimento Camarão Penaeus japonicus