Effects of dissolved oxygen concentration and stocking density on the growth, energy budget and body composition of juvenile Japanese flounder, Paralichthys olivaceus (Temminck et Schlegel)
作者： Yan Duan , Xiaoyu Dong , Xiumei Zhang , Zhenqing Miao
DOI: 10.1111/J.1365-2109.2010.02635.X
关键词: Paralichthys 、 Animal science 、 Internal medicine 、 Endocrinology 、 Energy budget 、 Stocking 、 Excretion 、 Olive flounder 、 Biology 、 Composition (visual arts) 、 Feed conversion ratio 、 Respiration
摘要: An energetic method was used to investigate the effects of stocking density and dissolved oxygen (DO) concentration on growth juvenile Paralichthys olivaceus. Fish, with initial weights 14±2.1 g, were exposed a normal high DO 5.5±0.5 14±2 mg L−1, as well four densities per (100, 200, 300 400 ind m−2 for 400, 600 800 ind m−2 DO). The feed efficiency (FEW) decreased significantly increasing increased concentration. maximum weight achieved at under depending our rearing conditions. change energy ingestion its allocation respiration, excretion lost in nitrogen excretion, but do not affect loss through faeces. results body composition fish indicated that had no significant moisture, lipid content gross energy, are affected by same. Energetic analysis demonstrated concentrations could alleviate depression caused densities, decrease respiration increase proportion allocated growth.
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