Abstract:
:The food intakes of male and female rats (Harvard strain) adapted to cold (5 degrees C) starting at weaning were studied in the cold and during reacclimation to 25 degrees C. Following 24 hr food deprivation, the male rats regained the weight they had lost without making up for the food they had missed (increased food efficiency), while the female rats ate 75% more food than they had missed in regaining their body weights (decreased food efficiency), independent of the temperature at which the animals were housed. On a high fat diet, both cold groups gained less weight than did the two control groups. However, each female group gained significantly less weight than its same temperature male group. Dietary-induced thermogenesis was significantly enhanced in male cold adapted rats 3 months after reacclimation to the zone of thermal neutrality but not in cold adapted female rats. Sex and strain differences are discussed. These data indicate that early chronic cold exposure results in both immediate and long-term changes in food efficiency and metabolism in adult rats, but the effects vary with the sex of the animal.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Davis JR,Tagliaferro AR,Roberts JS,Hill JOdoi
10.1016/0031-9384(82)90377-8subject
Has Abstractpub_date
1982-07-01 00:00:00pages
135-40issue
1eissn
0031-9384issn
1873-507Xpii
0031-9384(82)90377-8journal_volume
29pub_type
杂志文章abstract::The present studies sought to determine whether prenatal cocaine administration (15 mg/kg b.i.d. between gestational ages 1-20) had enduring effects on emotional behavior of rats. Rats prenatally treated with cocaine interacted less with other rats in the social interaction test of anxiety at both 30 and 120 days of a...
journal_title:Physiology & behavior
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doi:10.1016/s0031-9384(00)00245-6
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journal_title:Physiology & behavior
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journal_title:Physiology & behavior
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journal_title:Physiology & behavior
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journal_title:Physiology & behavior
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journal_title:Physiology & behavior
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journal_title:Physiology & behavior
pub_type: 杂志文章
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