Effect of group size on feed intake, growth and feed efficiency of juvenile perch
Effect of group size on feed intake, growth and feed efficiency of juvenile perch
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群体规模对幼鲈采食量、生长及饲料效率的影响
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
C. Magnhagen
中科院分区：
文献类型：
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作者：
Å. Strand;A. Alanärä;C. Magnhagen
群体大小对河鲈幼鱼的摄食量、生长和饲料效率有显著影响，12只一组的河鲈幼鱼比单独个体的摄食量低、生长快、饲料效率高。12人一组的鱼与4人一组的鱼相比，以及4人一组的鱼与单独的鱼相比，都出现了同样的趋势，尽管差异并不总是显著的。群体中鱼类的高生长和低饲料效率可能是由浅滩化带来的好处造成的，例如减少了压力。
Feed intake, growth and feed efficiency of juvenile perch Perca fluviatilis were significantly affected by group size, with fish in groups of 12 having lower feed intake, higher growth and higher feed efficiency than solitary individuals. The same trend was seen for fish in groups of 12 compared to fish in groups of four, and for fish in groups of four compared to solitary individuals, although the differences were not always significant. The high growth and low feed efficiency for fish in groups may be caused by benefits obtained from shoaling such as reduced levels of stress.