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  • Philippines : In the forefront of the mud crab industry development
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Development of protocol for the production of hatchery-reared mud crab Scylla serrata juveniles for soft-shell crab farming

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Date
2017
Author
Quinitio, Emilia T.
Libunao, Gardel Xyza
Parado-Estepa, Fe D.
Page views
31,662
Subject
aquaculture ASFA
brackishwater aquaculture ASFA
crab culture ASFA
growing ponds ASFA
growth rate ASFA
harvesting ASFA
hatcheries ASFA
marine crustaceans ASFA
nursery ponds ASFA
pond culture ASFA
seed production ASFA
stocking density ASFA
survival ASFA
trade ASFA
Scylla olivacea AGROVOC
Scylla serrata AGROVOC
Scylla tranquebarica AGROVOC
Philippines AGROVOC
Taxonomic term
Scylla serrata GBIF
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Abstract
Development of economically viable techniques for growing hatchery-reared juvenile crabs to suitable sizes will address the problem on the source of seed stocks for soft-shell crab farming. This paper reports the production of hatchery-reared mud crab Scylla serrata from juveniles in the nursery to 73-106 g body weight (BW) crabs in the grow-out pond for the individual system soft-shell crab farming. Likewise, the performance of hatchery-reared S. serrata, and wild S. tranquebarica and S. olivacea juveniles was determined in the soft-shell crab production set-up.

The BW increased from 1.8-1.9 g to 78-113.7 g when stocked at 0.5 ind m-2 and from 1.6-2.3 g to 73-106.7 g at 1.0 ind m-2 after 75 days. Growth rates at both stocking densities were comparable. However, survival was significantly higher (P<0.05) in lower (63.6~c1.01%) than in higher (35.6~c3.34%) stocking density. Male S. serrata (46.0 ~c 1.75%) had significantly higher BW increase than females (39.4 ~c 2.05%). Crabs stocked at sizes of 51-60 g showed significantly greater percent increase in BW (43.26~c 0.98%) compared with those at 61-70 g (40.98~c1.33%), 71-80 g (38.55~c 1.04%), 81-90 g (36.34 ~c 1.27%) and 91-100 g (38.52 ~c 1.67%). Among the three species, hatchery-reared S. serrata (42.14 ~c 1.34%) had significantly higher mean percent BW increase compared with S. olivacea (38.23 ~c 0.49%) and S. tranquebarica (36.16 ~c 0.78%). S. serrata had significantly shorter mean culture period (24.11 ~c 0.95 days) than S. tranquebarica (28.48 ~c 0.54 days) and S. olivacea (28.75 ~c 0.34 days).
URI
http://hdl.handle.net/10862/3192
Suggested Citation
Quinitio, E. T., Libunao, G. X., & Parado-Estepa, F. D. (2017). Development of protocol for the production of hatchery-reared mud crab Scylla serrata juveniles for soft-shell crab farming. In E. T. Quinitio, F. D. Parado-Estepa, & R. M. Coloso (Eds.), Philippines : In the forefront of the mud crab industry development : proceedings of the 1st National Mud Crab Congress, 16-18 November 2015, Iloilo City, Philippines (pp. 28-38). Tigbauan, Iloilo, Philippines: Aquaculture Department, Southeast Asian Fisheries Development Center.
Type
Conference paper
ISBN
9789719931072
Collections
  • Philippines : In the forefront of the mud crab industry development [44]

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