Niviventer confucianus is a common species of rodent in South China. We designed an experimental protocol to determine the influence of temperature on energy requirement and food assimilation of the N. confucianus . I...Niviventer confucianus is a common species of rodent in South China. We designed an experimental protocol to determine the influence of temperature on energy requirement and food assimilation of the N. confucianus . In our feeding trials, four experimental temperatures were applied: 17℃,22℃,27℃ and 32℃. The energy requirements of N. confucianus under different temperature were:107 43±6 44 KJ/animal/day (17℃),94 76±4 46 KJ/animal/day (22℃),73 96±5 65 KJ/animal/day(27℃),and 62 80±5 15 KJ/animal/day(32℃),respectively. Moreover, the energy intake, digested and assimilated energy of N. confucianus decreased with temperature increase. However, no significant differences on digestibility and assimilation rate of N. confucianus were found among four experimental temperatures. It indicated that, during a range of particular temperatures, N. confucianus might maintain relatively high digestibility by change of digest tract morphology.展开更多
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 ph...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 long photoperiod(16L∶8D). The results show that digestibility and assimilation rate were highest in the short photoperiod with values of 83 97%±1 16% and 80 46%±1 34%, and lowest in the normal photoperiod with values of 81 74%±1 76% and 78 45%±1 41%. 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 0 01 or 0 05 except for digested energy. This indicates that photoperiod is an important environmental factor to affect the energy metabolism of Niviventer confucianus .展开更多
文摘Niviventer confucianus is a common species of rodent in South China. We designed an experimental protocol to determine the influence of temperature on energy requirement and food assimilation of the N. confucianus . In our feeding trials, four experimental temperatures were applied: 17℃,22℃,27℃ and 32℃. The energy requirements of N. confucianus under different temperature were:107 43±6 44 KJ/animal/day (17℃),94 76±4 46 KJ/animal/day (22℃),73 96±5 65 KJ/animal/day(27℃),and 62 80±5 15 KJ/animal/day(32℃),respectively. Moreover, the energy intake, digested and assimilated energy of N. confucianus decreased with temperature increase. However, no significant differences on digestibility and assimilation rate of N. confucianus were found among four experimental temperatures. It indicated that, during a range of particular temperatures, N. confucianus might maintain relatively high digestibility by change of digest tract morphology.
文摘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 long photoperiod(16L∶8D). The results show that digestibility and assimilation rate were highest in the short photoperiod with values of 83 97%±1 16% and 80 46%±1 34%, and lowest in the normal photoperiod with values of 81 74%±1 76% and 78 45%±1 41%. 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 0 01 or 0 05 except for digested energy. This indicates that photoperiod is an important environmental factor to affect the energy metabolism of Niviventer confucianus .
