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Abstract
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Article Information:
Influence of the Artificial Substrates on the Attachment Behavior of Litopenaeus vannamei in the Intensive Culture Condition
Bo Zhang
Corresponding Author: Bo Zhang
Submitted: 2011 January, 06
Accepted: 2011 January, 31
Published: 2011 February, 05 |
Abstract:
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This study evaluated the influence of artificial substrates on the attachment behavior of Litopenaeus
vannamei reared in the intensive culture condition. L. vannamei were grown from PL60 (60-day-old postlarvae)
for 8 weeks at high density (500 shrimp per m2) in 12 independent aquaria (1.0×1.0×1.5 m, water surface area
1 m-2, water volume 1000 l). The experimental design consisted of four treatments: Group A (GA), artificial
substrates were immersed in water all the time; Group B (GB), artificial substrates immersed in water were
taken out of water weekly and returned immediately; Group C (GC), artificial substrates were exchanged weekly
by new one, and Group D (GD) without artificial substrates. With a longer rearing time, the increase of the
percentage of shrimp attachment on artificial substrates demonstrated continuous in GA but discontinuous in
GB and GC. Meanwhile, based on the mean of weeks, the percentage of shrimp attachment on artificial
substrates in GA was significantly higher than those in GB and BC from the second week. The final weight,
survival rate and final biomass of the shrimp reared in the treatment with artificial substrates were significantly
higher than those in other treatment without artificial substrates. However, there was not significant difference
in Food Conversion Rate (FCR) among different experimental treatments. So, we suggested that the differences
of shrimp growth parameters were affected mainly by the living space added with the addition of artificial
substrates.
Key words: Aquaculture, growth, high density, living space, survival, vertical surface, white shrimp
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Cite this Reference:
Bo Zhang, . Influence of the Artificial Substrates on the Attachment Behavior of Litopenaeus vannamei in the Intensive Culture Condition. International Journal of Animal and Veterinary Advances, (1): 37-43.
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ISSN (Online): 2041-2908
ISSN (Print): 2041-2894 |
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