alexa Effects of Stocking Density and Water Exchange Rates on Growth Performance of Tiger Shrimp, Penaeus Semisulcatus Cultured in Earthen Ponds | OMICS International | Abstract
ISSN: 2155-9546

Journal of Aquaculture Research & Development
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Research Article

Effects of Stocking Density and Water Exchange Rates on Growth Performance of Tiger Shrimp, Penaeus Semisulcatus Cultured in Earthen Ponds

Gaber MM1*, Omar EA2, Abdel-Rahim M2, Nour AM2, Zaki MA2 and Srour TM2

1National Institute of Oceanography and Fisheries, Cairo, Egypt

2Department of Animal and Fish Production, Faculty of Agriculture, Alexandria University, Egypt

*Corresponding Author:
Gaber MM
National Institute of Oceanography and Fisheries
Cairo, Egypt P.O Box: 40
Shoubra, Cairo, Egypt
E-mail: [email protected]

Received Date: July 12, 2012; Accepted Date: September 04, 2012; Published Date: September 24, 2012

Citation: Gaber MM, Omar EA, Abdel-Rahim M, Nour AM, Zaki MA, et al.(2012) Effects of Stocking Density and Water Exchange Rates on Growth Performance of Tiger Shrimp, Penaeus Semisulcatus Cultured in Earthen Ponds. J Aquacult Res Dev 3:152. doi:10.4172/2155-9546.1000152

Copyright: © 2012 Gaber MM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

The trial was conducted in earthen pond with average initial weight of 4.5 ± 0.4 mg/PLs of green tiger shrimp, to examine the effect of three stocking density and two water exchange rate on growth performances, production traits and feed composition. Eighteen earthen ponds (2200 m2) were stocked with either, 5, 15 and 25 PLs/m3, and received either 10 or 20% of water exchange rate. The results revealed that, mean final weight (g/PLs), gain in weight (g/PLs), gain in weight %, SGR (% /day), feed conversion ratio, protein productive value (PPV), protein efficiency ratio (PER), fat gain and energy utilization were significantly (p≤0.01) the best at the lowest stocking density. While, total production exhibited significantly the opposite trend. There significant differences (P≤0.05) were found between water exchange rate in term of mean final weight (g/PLs), gain in weight (g/PLs), gain in weight %, SGR (%/day), feed conversion ratio, PPV, PER, fat gain and energy utilization. From the above results and the economic information of these study it can be concluded that, stocking density of 15 PLs/m2 of green tiger shrimp and 20% water exchange rate exhibited the highest net profit and would seem to be the most desirable density and water exchange rate in the system studied.

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