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Evaluation of different supplemental feeds for milkfish (Chanos chanos) reared in brackishwater ponds

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Date
1991
Author
Sumagaysay, Neila S.
Marquez, Faith E.
Chiu-Chern, Yvonne N.
Page views
9,525
Subject
aquaculture economics ASFA
brackishwater aquaculture ASFA
diet ASFA
feeding experiments ASFA
growth ASFA
survival ASFA
fish culture ASFA
milkfish AGROVOC
Chanos chanos AGROVOC
Taxonomic term
Chanos chanos GBIF
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Abstract
The effects of supplemental feeding on milkfish growth, production, survival, water quality, and economic benefits in brackishwater ponds were evaluated by comparing a rice bran diet, containing 11.3% protein, and two pelleted diets, containing 22.0% and 27.4% protein, with an unfed control. Four 800-m2 tide-fed ponds, subdivided into quarters, were used. Each treatment was replicated in four random pond compartments. Milkfish with initial average weight of 1 g were stocked at 8000/ha and feeding commenced when the average weight and standing crop were 57 g and 417 kg/ha, respectively. All supplemental feeds significantly (P<0.05) increased growth and production over the unfed control. Feeding diets containing 22.0% and 27.4% protein resulted in 35.3% and 46.7% higher net profits, respectively, whereas feeding rice bran resulted in a 34.4% lower net profit when compared to the unfed control. The growth of milkfish became significantly slower (P<0.01) than those fed the 27.4% protein diets when the standing crop of unfed and rice bran-fed fish reached 535 kg/ha and fish fed the 22.0% protein diet reached 972 kg/ha. Survival was not significantly different among the treatments. The concentration of metabolites in the culture water for all treatments was low but a significant increase (P<0.05) in level of total carbon dioxide and nitrite-nitrogen was observed as biomass increased.
URI
http://hdl.handle.net/10862/1359
Suggested Citation
Sumagaysay, N. S., Marquez, F. E., & Chiu-Chern, Y. N. (1991). Evaluation of different supplemental feeds for milkfish (Chanos chanos) reared in brackishwater ponds. Aquaculture, 93(2), 177-189. https://doi.org/10.1016/0044-8486(91)90216-T 
DOI
10.1016/0044-8486(91)90216-T
Type
Article
ISSN
0044-8486
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  • Journal Articles [1160]

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