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Effect of Farm Made Feeds on Polyculture of Shrimp (penaeus Monodon) and Three Brackishwater Finfish Species

A.F.M. Shofiquzzoha
Bangladesh Fisheries Research Institute, Brackishwater Station, Paikgacha, Khulna 9280, Bangladesh

M.L. Islam
Bangladesh Fisheries Research Institute, Brackishwater Station, Paikgacha, Khulna 9280, Bangladesh

S. U. Ahmed
Bangladesh Fisheries Research Institute, Riverine Station, Chandpur

Abstract/ Executive Summary:

A study was conducted to evaluate the effects of feed made from locally available ingredients on polyculture of shrimp and three brackishwater finfish species. Hatchery produced post-larvae (PL) of shrimp Penaeus monodon (0.005g) were stocked at the rate of 15,000 PLs/ha. Brackishwater finfish species Liza parsia, Mugil cephalus and Rhinomugil corsula of 0.63-1.41 g collected from local rivers were stocked at the rate 8,000, 1,000 and 2,000/ha, respectively in four treatments. Shrimp and finfishes were fed four different experimental diets composed of fish meal, mustard oil cake, rice bran, oyster shell power and vitamin premixes at the rate of 3-5% estimated crop/day for 195 days. Among four treatments, P. monodon showed comparative better growth in T₄ and T₃. Finfish L. parsia showed its better performance in treatment T₂. Species M. cephalus and R. corsula showed insignificant production. P. monodon showed better growth with diet of fish meal and mustard oil cake@ 28.84 and 33.65%, respectively in T₃ and 19.22 and 43.27%, respectively in treatment T₄.

Keywords: P. monodon, L. parsia, M. cephalus, R. corsula, Feed, Polyculture, Brackishwater

Location: Bangladesh Fisheries Research Institute, Brackishwater Station, Paikgacha, Khulna

Start Date: 00-00-2002

End Date: 00-00-2002

Program Area: Animal Health and Management

Commodity: Feed

Objectives:

To observe the effect of feed prepared from locally available ingredients on shrimp Penaeus monodon and three non-carnivore brackishwater finfish species in polyculture practice.

Methodology:

The experiment was carried out during May to October in 12 earthen ponds as four treatments viz. T₁ T₂, T₃ and T₄ with three replications each. Preparation of the pond: The ponds (0.2 ha each) were drained and dried. Soil pH was measured and lime was applied at the rate of 270-300 kg/ha depending on the pH levels of the soil. The water pH was also maintained in the same way. Mustard oil cake as an organic fertilizer was applied at the rate of 100 kg/ha. Inorganic fertilizers like triple super phosphate and urea (ratio 3: 1) at the rate of 30 kg/ha were applied. Initially tidal water was allowed to enter up to a depth of about 40-60 cm and awaited for natural feed development then level was finally increased up to 90 cm. As per necessity, portion of water (approximately 20%) was exchanged from ponds during the new and full moon. Stocking: Hatchery produced post larvae (PLs) of shrimp P. monodon were stocked (during mid May) at the rate of 15000 PLs ha^-1 along with fingerlings of Liza parsia, Mugil cephalus and Rhinomugil corsula of collected from local rivers were stocked 8,000; 1,000 and 2,000 fry/ha, respectively in treatments TD T2, T3 and T4. Feeding: Commercial nursery shrimp feed (Saudi-Bangla) Starter-1 was fed the shrimp twice a day at dawn and dusk at the rate of 100% of stocking bio-mass during first week and then the rate were gradually reduced to 60, 40 and 20% in the subsequent 2nd, 3rd and 4rh week respectively. After 30 days, shrimp and fin-fishes were fed with supplement feed made from locally available ingredients. Four diets were formulated using rice bran (RB), fishmeal (FM), mustard oil cake (MOC), wheat flour (WF), oyster shell powder (OS) and animal grade vitamin premixes. Feeds were fed twice a day (at dawn and dusk) at the rate of 3-5% of estimated crop. The ingredients RB, FM, WF, OS and vitamin, were proportionally weighted and mix together except MOC. The mixture were added with soaked MOC and was made into dough balls. These balls were supplied in some particular places in ponds as the animals could easily get their feed. Feed supplying often stopped for day or per serve whenever the weather became cloudy or after heavy rainfall. Sampling and data collection: Water quality parameters i.e., air and water temperature, pH, salinity, transparency were monitored once in a week. After 87th day of culture, harvest was done for P. monodon by selective cast netting. Remaining finfish species i.e., L. parsia, M. cephalus and R. corsula those were reared in the same ponds for stipulated 195 days of culture. The final harvest of finfish and rest of shrimp was done by completely drain out the ponds.

Source of Information: Bangladesh J. Fish. Res., 7(1), 2003: 77-82

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Among four treatments, P. monodon showed comparative better growth in T₄ and T₃. Finfish L. parsia showed its better performance in treatment T₂. Species M. cephalus and R. corsula showed insignificant production. P. monodon showed better growth with diet of fish meal and mustard oil cake@ 28.84 and 33.65%, respectively in T₃ and 19.22 and 43.27%, respectively in treatment T₄.

Knowledge Management: Journal