期刊
BRAZILIAN ARCHIVES OF BIOLOGY AND TECHNOLOGY
卷 51, 期 1, 页码 57-65出版社
INST TECNOLOGIA PARANA
DOI: 10.1590/S1516-89132008000100008
关键词
growth; fresh water prawn; Macrobrachium tenellum; isoproteic diets; soya bean meal; aquaculture
类别
Growth parameters (standard length, weight, specific growth rate and daily weight gain) of prawn Macrobrachium tenellum juveniles fed 40% crude protein isoproteic diets substituting fish meal with soya bean meal at various levels (20, 40, 60, 80 and 100%) were evaluated for 45 days under laboratory conditions. Experimental diets were compared with a 100% fish meal based diet. Total survival was recorded for all the treatments at the end of the experiment. There were no significant differences (p >= 0.05) for all the growth parameters among the dietary treatments. The initial mean weight (0.36 +/- 0.10 g) increased almost three times (1.00 +/- 0.13 g) after 45 days. The final specific growth fluctuated from 1.82% BW/d for the 60% soya bean meal inclusion diet, to 2.62% for the 100% fish meal diet. The mean final survival was 91.66%. Growth performance of M. tenellum juveniles was not affected by the dietary soya bean meal levels tested.
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