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The effect of lipid-enriched broodstock diets on spawning and on egg and larval quality of hatchery-bred rabbitfish (Siganus guttatus)

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Ngày
1994
Tác giả
Duray, Marietta
Kohno, Hiroshi
Pascual, Felicitas
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trừu tượng
Three isocaloric and isonitrogenous diets formulated to contain 12 (diet A), 15 (B) and 18% (C) lipids were tested on hatchery-bred rabbitfish Siganus guttatus broodstock to determine their effect on spawning and quality of the eggs and larvae. The results show that fish on diet C has higher fecundity than those on diets B and A. Also, fish on diet C yielded eggs of better quality than either fish on diets B or A. This was indicated by spawns resulting in higher percentage of normal hatchlings, larger newly-hatched larvae and higher survival rates until the 14th day of rearing. Dietary lipid levels, however, have no remarkable effects on fertilization, yolk and oil globule volumes, hatching rate nor larval size at harvest.
URI
http://hdl.handle.net/10862/1452
Suggested Citation
Duray, M., Kohno, H., & Pascual, F. (1994). The effect of lipid-enriched broodstock diets on spawning and on egg and larval quality of hatchery-bred rabbitfish (Siganus guttatus). The Philippine Scientist, 31, 42-57.
Chủ thể
aquaculture techniques ASFA; breeding stock ASFA; Diets; fecundity ASFA; feed composition ASFA; feeding experiments ASFA; fish culture ASFA; fish eggs ASFA; fish larvae ASFA; lipids ASFA; spawning ASFA; Siganus guttatus
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