What is the breed of hairless rats called? - briefly
The hairless rat breed is known as the «Nude rat», a fur‑less strain frequently employed in laboratory research. It is also commonly called the hairless rat.
What is the breed of hairless rats called? - in detail
The hairless variety of laboratory and pet rats is commonly designated as the «Hairless rat» or, alternatively, the «Nude rat». This phenotype results from a recessive mutation that suppresses normal fur development, leaving the skin exposed and often pink or lightly pigmented.
Key biological aspects include:
- Genetic basis: the hairless trait is linked to a recessive allele (hr) on chromosome 14; homozygous individuals display the phenotype, while heterozygotes carry the gene without expressing it.
- Physiological implications: lack of fur increases susceptibility to temperature fluctuations, dehydration, and skin infections; therefore, environmental control and regular skin care are essential.
- Common uses: the strain serves as a model for immunological research because the absence of hair facilitates graft acceptance and wound‑healing studies; it also appears in the pet market for enthusiasts seeking a unique appearance.
- Breeding considerations: maintaining the line requires careful pairings to avoid inbreeding depression; breeders often introduce outcrosses with standard‑fur rats to preserve vigor while retaining the hairless allele.
Care guidelines for owners:
- Housing temperature should remain between 20 °C and 24 °C, with supplemental heating during colder periods.
- Substrate must be low‑dust and absorbent to prevent skin irritation.
- Daily inspection of the skin for abrasions, fungal growth, or parasites is recommended; topical antiseptics may be applied as needed.
- Nutritional needs mirror those of furred rats, but supplemental omega‑3 fatty acids can support skin health.
In summary, the hairless rat, identified by the terms «Hairless rat» and «Nude rat», represents a distinct genetic strain with specific husbandry requirements and valuable applications in scientific research.