Contribution of natural food and supplemental feed to the gut content of Penaeus monodon Fabricius in a semi-intensive pond system in the Philippines

Juvenile Penaeus monodon were stocked in grow-out ponds and fed a compound diet at high rates for 19 weeks under semi-intensive conditions. At three stages of the rearing period (weeks 6, 11 and 16), the gut content of the shrimp was analysed microscopically at every hour of the day. Additionally, p...

Full description

Saved in:
Bibliographic Details
Published in:Aquaculture 1998-05, Vol.164 (1), p.105-116
Main Authors: Focken, Ulfert, Groth, Andreas, Coloso, Relicardo M, Becker, Klaus
Format: Article
Language:English
Subjects:
ALIMENT POUR ANIMAUX
ALIMENTACION COMPLEMENTARIA
ALIMENTATION COMPLEMENTAIRE
Animal aquaculture
Animal productions
Aquaculture
Biological and medical sciences
CRIA DE CRUSTACEOS
Crustacea
CRUSTACEAN CULTURE
ELEVAGE DE CRUSTACES
ESTANQUES
ETANG
Feeding pattern
FEEDS
Food
FORMAS JUVENILES
Fundamental and applied biological sciences. Psychology
Gut content analysis
INGREDIENT
INGREDIENTES
INGREDIENTS
INTESTIN
INTESTINES
INTESTINOS
Invertebrate aquaculture
JUVENILE
JUVENILES
Natural & organic foods
Natural food
PENAEUS MONODON
PIENSOS
PONDS
Semi-intensive aquaculture
Shellfish
Supplemental feeding
SUPPLEMENTARY FEEDING
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Juvenile Penaeus monodon were stocked in grow-out ponds and fed a compound diet at high rates for 19 weeks under semi-intensive conditions. At three stages of the rearing period (weeks 6, 11 and 16), the gut content of the shrimp was analysed microscopically at every hour of the day. Additionally, possible sources of natural food (lablab, lumut, zoobenthos, etc.) were analysed microscopically and where possible for proximate composition. At week 6, the gut content consisted of 28.9% supplemental feed, 42.3% plant materials (other than from the pelleted diet), 1.8% crustacean parts and 27.0% diverse detrital matter. For week 11, the percentages (same order) were 47.5%, 21.1%, 22.8%, 8.6% and for week 16, 21.7%, 34.3%, 31.7% and 12.9%, respectively. Food preference did not change with time of the day. At week 6, most feeding activity occurred at night, later, feeding activity shifted to day-time. Reduction of the maximum gut content at dissolved oxygen levels below 4 mg l −1 at night indicated a cessation of feeding in which case shrimp fed during the day-time, when dissolved oxygen levels were higher.
ISSN:0044-8486
1873-5622
DOI:10.1016/S0044-8486(98)00180-X