RESTING METABOLIC RATES AND RESPIRATORY QUOTIENTS OF GRAY SEALS (HALICHOERUS-GRYPUS) IN RELATION TO TIME OF DAY AND DURATION OF FOOD-DEPRIVATION
RESTING METABOLIC RATES AND RESPIRATORY QUOTIENTS OF GRAY SEALS (HALICHOERUS-GRYPUS) IN RELATION TO TIME OF DAY AND DURATION OF FOOD-DEPRIVATION
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DOI：
10.1086/physzool.68.6.30163799
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发表时间：
1995-11-01
期刊：
影响因子：
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通讯作者：
LAVIGNE, DM
中科院分区：
文献类型：
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作者：
BOILY, P;LAVIGNE, DM
在一天中的不同时间，对7只灰海豹（3只成年海狮和4只幼海狮）的静息代谢率（RMR）和呼吸速率（RQ）进行了测定。静息代谢率在一天中没有显著变化。RMR中缺乏可检测的昼夜变化可能归因于动物的体重较大或实验设计的局限性。呼吸商值随时间的不同而显著不同，早晨高于其他时间段。进一步的分析表明，RQ的明显变化可能归因于与食物剥夺持续时间相关的混杂效应。一旦校正了这种影响，RQ并没有改变一天中的时间。后者的结果表明，灰海豹可能进入饥饿状态后24小时的食物剥夺。
Resting metabolic rates (RMR) and respiratory quotients (RQ) were measured in seven gray seals, Halichoerus grypus (three adults and four juveniles); at different times of day. Resting metabolic rates did not change significantly throughout the day. The lack of detectable diel changes in RMR may be attributed to the large body mass of the animals or to limitations of the experimental design. Respiratory quotient values differed significantly with time of day, being higher in the morning compared with other time periods. Further analysis indicated that apparent changes in RQ could be attributed to the confounding effect related to duration of food deprivation. Once corrected for this effect, RQ did not change in relation to time of day. The latter result suggests that gray seals may enter a starvation state after 24 h of food deprivation.