Effect of dietary supplementation of enriched Artemia with ethanolic leaf extract of grey mangrove Avicennia marina on growth performance, survival and stress resistance in Pacific white shrimp (Penaeus vannamei) postlarvae
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
In the present study, nauplius of Artemiafranciscana was enriched with different levels (0.2 and 0.4 g/L) of ethanolic leaf extract of grey mangrove Avicennia marina and then was fed by Pacific white shrimp Penaeus vannamei postlarvae (total length average 0.2±0.05 cm and weight average 10.10±0.20 mg) by adding to basal diet for 30 days. Growth performance including total length, weight, and specific growth rate was determined on days 1, 15 and 30 and survival percentage at the end of the period. The tests of salinity and formalin stress resistance were achieved on days 15 and 30 of the culture period. Results showed that the use of extract at concentrations of 0.2 and 0.4g/L had positive effects on shrimp growth in relation to the control. Shrimps fed with enriched Artemia had significantly higher survival than control. Salinity stress resistance in shrimps fed with enriched Artemia was higher than control. In formalin stress test, the survival in shrimps fed with enriched Artemia was higher compared to control, although this was not significantly different. In conclusion, use of Artemia enriched by mangrove leaf extract in the larval stage of Pacific white shrimp could improve the quality of postlarvae.
Language:
Persian
Published:
Physiology and Aquatic Biotechnology, Volume:5 Issue: 3, 2018
Pages:
75 to 94
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