Thermoregulatory behavior in infant Norway rats (Rattus norvegicus) and Syrian golden hamsters (Mesocricetus auratus): arousal, orientation, and locomotion.

Contributions of endothermy to huddling behavior in infant Norway rats (Rattus norvegicus) and Syrian golden hamsters (Mesocricetus auratus).

Infant Syrian golden hamsters (Mesocricetus auratus) do not exhibit endogenous heat production before 3 weeks of age and do not huddle effectively during cold exposure, gaining little thermoregulatory benefit from the presence of multiple littermates. In contrast, infant Norway rats (Rattus norvegicus) produce heat endogenously and are effective at maintaining elevated body temperatures by hudd...

A comparative analysis of huddling in infant Norway rats and Syrian golden hamsters: does endothermy modulate behavior?

In infant rats, huddling improves surface-to-volume ratios and provides metabolic savings during cold exposure. It is unclear, however, whether endothermy is also a necessary component of huddling. In the present experiment, huddles composed of infant Norway rats (2- or 8-day-olds), which produce heat endogenously, or Syrian golden hamsters (8-day-olds), which do not produce heat endogenously, ...

Fungal flora of the hair coat of domestic golden hamster (Mesocricetus auratus) with and without skin lesions in Mashhad, Iran

The objective of this study was to investigate fungal flora of the hair coat of domestic golden hamsterswith and without skin lesions. Sixty hamsters were examined in the Small Animal Teaching Hospitalof the Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, and Mashhad, Iran. Asteriletoothbrush was used for sample collection, from the entire body of the hamsters, all skin lesions ...

Blood cell factors and tumor growth in the cheek pouch of the golden hamster (Mesocricetus auratus).

Differing mechanisms of cold-induced changes in capillary supply in m. tibialis anterior of rats and hamsters.

The physiological, metabolic and anatomical adaptations of skeletal muscle to chronic cold exposure were investigated in Wistar rats (Rattus norvegicus), a species that defends core temperature, and Syrian hamsters (Mesocricetus auratus), which may adopt a lower set point under unfavourable conditions. Animals were exposed to a simulated onset of winter in an environmental chamber, progressivel...