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光周期对社鼠能量摄入的影响

郑荣泉;鲍毅新;周慧娣;柴君波;黄学强;郑祥

  Digested energy, metabolizable energy, digestibility and assimilation rate were quantified at different photoperiods in Niviventer confucianus using the food balance method. Three photoperiods were applied: a short photoperiod (8L∶16D), normal photoperiod(12L∶12D) and a longphotoperiod(16L∶8D). The results show that digestibility and assimilation rate were highest in the short photoperiod with values of 8397%±116% and 8046%±134%, and lowest in the normal photoperiod with values of 8174%±176% and 7845%±141%. Moreover, the energy intake, digestibility and assimilated energy of N. confucianus decreased with the amount of daylight. The statistical significance of the results obtained by a one-factor analysis of variance were all less than 001 or 005 except for digested energy. This indicates that photoperiod is an important environmental factor to affect the energy metabolism of Niviventer confucianus .……   
[关键词]:社鼠;光照周期;消化率;同化率
[文献类型]:期刊
[文献出处]: 《动物学报2003年04期
[格式]:PDF原版; EPUB自适应版(需下载客户端)