1 AIT Asian Institute of Technology

Contribution of natural food to the growth and survival of tiger prawn postlarvae/Juveniles in brackishwater ponds

AuthorGonzales, Eden P.
Call NumberAIT Thesis no.AE-88-26
Subject(s)Shrimp culture
NoteA Thesis submitted in partial fulfilment of the requirements for the degree of Master of Science, School of Environment, Resources and Development
PublisherAsian Institute of Technology
AbstractThe relative contribution of natural food organisms present in a typical brackishwater prawn culture pond system to the growth and survival of Penaeus monodon postlarvae and juveniles was estimated using the food conversion ratio C FCR> as an index of nutritional efficiency. Twenty- day old postlarvae of weight 1 8 mg and length 11 . 4 mm were reared in 0. 15 - cm mesh, 3 m x 1 m x 1 . 75 m nylon net cages installed in an intensive commercial prawn grow out pond. Th e cages were either open to the bottom to allow the prawns access to benthic food organisms, or were suspended off bottom to prevent access to this food source . In two of the treatments, prawns were given commercial feed equivalent to 10% of their body weight. Natural food constituted about 5 1 % to 89% of the total food intake of the prawns during the two month s experimental culture period Con the assumption that the feeding efficiency of the prawns was 1 00%>. At the end of the c ultu re period, the prawns that received supplementary feed both in the cages that allowed access to benthos and those that did not, were significantly C P plankton and other food organisms were dilute d during water exchanges which start e d from the fifth week of the culture period, and c)c hanging food habits or food preferences of t h e prawns as they grew larger.
Year1988
TypeSpecial Study Project Report (SSPR)
SchoolSchool of Environment, Resources, and Development (SERD)
DepartmentOther Field of Studies (No Department)
Academic Program/FoSAgricultural and Food Engineering (AE)
Chairperson(s)Machintosh, Donald J.
Examination Committee(s)Lin, Chang Kwei ;Wee, Kok Leong
Scholarship Donor(s)DAAD - Federal Republic of Germany
DegreeThesis (M.Sc.) - Asian Institute of Technology, 1988


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