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Hematological standard values in the cotton rat (Sigmodon hispidus)
1Experimental Animal Laboratory, Fukushima Medical College, Japan.
Jikken Dobutsu. Experimental Animals
|October 1, 1993
Summary
This study provides key hematological reference data for cotton rats. Female rats exhibited lower red blood cell (RBC), hematocrit (Ht), and mean corpuscular volume (MCV) compared to males.
Area of Science:
- Veterinary Medicine
- Animal Science
- Hematology
Background:
- Establishing baseline hematological parameters is crucial for animal health monitoring and research.
- Cotton rats (Sigmodon hispidus) are increasingly used as animal models in biomedical research, necessitating species-specific reference data.
Purpose of the Study:
- To determine and present reference ranges for key hematological parameters in adult cotton rats.
- To identify potential sex-based differences in these hematological values.
Main Methods:
- Hematological analysis was performed on 28 male and 29 female cotton rats aged 16-18 weeks.
- Eight specific hematological values were measured, including red blood cell count (RBC), hematocrit (Ht), mean corpuscular volume (MCV), hemoglobin (Hb), platelet count (PLT), and white blood cell count (WBC).
Main Results:
- Significant differences were observed between sexes for RBC, Ht, and MCV, with females showing lower values.
- Female Hb and PLT values tended to be lower than males, though not statistically significant.
- White blood cell (WBC) and PLT counts displayed considerable variation within both male and female populations.
Conclusions:
- This study establishes essential hematological reference data for cotton rats, vital for accurate interpretation of future research findings.
- Sex-specific differences in certain hematological parameters, particularly RBC, Ht, and MCV, should be considered when evaluating cotton rat health and experimental results.