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7 Striped Catfish Aquaculture in Vietnam: A Decade of Unprecedented Development1374,000Export Value ( x1000 US$)3,5003,0002,5002,0001,5001,000500-TotalCatfish1999 2000 2001 2002 2003 2004 2005 2006 2007Fig. 7.5 Export value of catfish in comparison with total export value from aquaculture andfisheries sector of Vietnam (Dung 2008)7.6 Key Factors of for the Success of Striped Catfish Farmingin Vietnam7.6.1 Success of Seed Production and Hatchery DevelopmentThe availability of good quality seed stock in adequate quantities is considered asone of a few key drivers to the explosive growth of striped catfish culture in Vietnam.Before 2000, the seed stock was wild caught and of limited quantity and seasonalavailability. Tung et al. (2001) (cited by Van Zalinge et al. 2002 ) estimated that theannual amount of wild caught fry varied from 50 to 200 millions during the periodfrom 1977 to 1997. The culture of striped catfish in that period was mainly in smallponds with low stocking density. However, since seed was produced year-round inhatcheries in adequate amounts, the commercial culture was developed with multiplecrops per year and enabled the adoption of extremely high stocking densities.Research on artificial propagation of Pangasiid catfish was first commenced in1978 (Xuan 1994) with P. hypophthalmus species. However, results were not sufficientlyreliable for mass seed production and the research activities were discontinued.Then research on induced spawning of striped catfish was restarted in 1995 underan EU funded project, which was led by Can Tho University. Partners of this projectincluded French Agricultural Research Centre for International Development(CIRAD), Research Institute for Development (IRD) (France), Can Tho University(CTU) and An Giang Fisheries Import–Export joint stock (AGIFISH) Company(Vietnam). Techniques for induced spawning of striped catfish were primarily
138 N.T. Phuong and D.T.H. Oanh10,000Production (millions)8,0006,0004,0002,000LarvaeFingerling-1998 2000 2003 2006YearFig. 7.6 Increase of seed production of striped catfish from 1998 to 2006established in 1996 and fully achieved and transferred to hatchery operators since2000 (Cacot 1999 ; Cacot et al. 2002) . Since then, the seed production of stripedcatfish has been increased rapidly (Fig. 7.6 ).In the early stages, striped catfish seed production was only conducted in fourstate-run hatcheries, and the production did not meet the demand for stocking. Since2002, a number of private hatcheries have been established with technical supportfrom CTU and Research Institute for Aquaculture No. 2 contributed significantly tothe expansion of striped catfish farms. Striped catfish hatcheries are now capable ofmeeting the seedstock demand for commercial grow-out in the region (Fig. 7.6 ).However, due to the increasing demand for high quality striped catfish fingerlings forgrow-out, a number of large-scale grow-out farms have built hatcheries to produceseedstock for their own use. This trend has continued to this day.7.7 Success of Pond Culture Development7.7.1 Overview of Culture SystemsThree main culture practices of striped catfish occur in the Mekong Delta; pond,cage, and pen. The development of these types has changed with time according toits economic efficiency. Pangasiid catfish culture in cages was introduced anddeveloped very early in the Delta. At the beginning of the 1960s, a number ofVietnamese who had lived in Cambodia and returned to Vietnam commenced catfishcage culture practice in the border area of Vietnam and Cambodia (InterimCommittee for Coordinating of Investigations of the Lower Mekong 1992 ; Phuong1998) . Mekong river catfish was the main culture species in cages in that period.
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Sena S. De SilvaF. Brian DavyEditor
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Sena S. De Silva ●EditorsF.Brian
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ForewordWorld aquaculture has grown
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PrefaceWe are moving into a turbule
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Prefaceix• Provide a direction fo
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Contents1 Aquaculture Successes in
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Chapter 1Aquaculture Successes in A
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1 Aquaculture Successes in Asia: Co
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Chapter 2Recent Developments in Ric
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2 Recent Developments in Rice-Fish
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Chapter 3Shrimp Farmers in India: E
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3 Shrimp Farmers in India: Empoweri
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50 N.R. Umesh et al.GoalSUSTAINABLE
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52 N.R. Umesh et al.• The optimum
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54 N.R. Umesh et al.in five states
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56 N.R. Umesh et al.3.5.2.4 Facilit
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58 N.R. Umesh et al.3.7 Opportuniti
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60 N.R. Umesh et al.with similar ou
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62 N.R. Umesh et al.• Knowledge a
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64 N.R. Umesh et al.helping small f
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66 N.R. Umesh et al.ReferencesFAO/N
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68 H. Kongkeo and F.B. DavyPlate 4.
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70 H. Kongkeo and F.B. DavyTable 4.
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72 H. Kongkeo and F.B. Davytrate th
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74 H. Kongkeo and F.B. Davylack of
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76 H. Kongkeo and F.B. Davyby incre
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78 H. Kongkeo and F.B. Davysoil ana
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80 H. Kongkeo and F.B. Davy• Deva
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82 H. Kongkeo and F.B. DavyTable 4.
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Chapter 5Cage Fish Culture: An Alte
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Page 178 and 179: 168 B.O. Acosta and M.V. GuptaBox 8
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190 S.S. De Silva et al.Box 10.1 A
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192 S.S. De Silva et al.other appro
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194 S.S. De Silva et al.• Effecti
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196 S.S. De Silva et al.Table 10.1
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198 S.S. De Silva et al.• Institu
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ContributorsBelen O. Acosta , BSc F
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Contributors203become more relevant
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Contributors205research on physiolo
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IndexAAcosta, B., 155Agrarian Devel
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Indexalternate rice fish farming, 2
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IndexKKanna meeting, of FOs, 112Kul
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IndexSSchizothorax spp. (Asla), 91,
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Sena S. De SilvaF. Brian DavyEditor
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