PRELIMINARY OBSERVATIONS ON DIURNAL RHYTHM IN THE HAEMATOLOGICAL PARAMETERS OF MALE AFRICAN GIANT RATS (Cricetomys gambianus, Waterhouse)

Authors

  • A.A. SANNI Author
  • O.R. OYEDOKUN Author
  • O.O. ALAKA Author

DOI:

https://doi.org/10.4314/

Keywords:

Diurnal Rhythm, Haematological Parameters, male African giant rat

Abstract

The diurnal rhythm of haematological parameters was investigated in the male African giant rat (Cricetomys
gambianus, Water house). There was a significant difference (P<0.001) between the values of red blood cell count (RBC) 
obtained during the day (light phase) and at night (dark phase). The lowest value (RBC) was recorded at 12.00hrs, but 
showed a gradual increase from 12.00 hrs to 24.00hrs, although the differences were not significant. It reached a peak 
at 21.00 hrs. The packed cell volume (PCV) showed a progressive decline between 9.00 hrs and 24.00hrs. The value 
obtained at 24.00 hrs was also significantly lower than the values at 9.00 hrs (P<0.01) and 12.00 hrs (P<0.01). White 
blood cell count (WBC) gradually decreased during the period of the study. The WBC values obtained at 24.00 hrs were 
significantly lower than the values at 9.00 hrs (P<0.01) and 12:00 hrs (P<0.02).

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Published

2024-09-15

Issue

Vol. 3 No. 2 (2000): May Issue

Section

Original Article

License

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

PRELIMINARY OBSERVATIONS ON DIURNAL RHYTHM IN THE HAEMATOLOGICAL PARAMETERS OF MALE AFRICAN GIANT RATS (Cricetomys gambianus, Waterhouse). (2024). African Journal of Biomedical Research, 3(2), 117-120. https://doi.org/10.4314/