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Assessment of blood types of Ragdoll cats for transfusion purposes
Daniela Proverbio1, Eva Spada, Roberta Perego
1Department of Health, Animal Science and Food Safety, Unit of Veterinary Transfusion Medicine, University of Milan, Milan, Italy.
Insights
Ragdoll cats possess all three feline blood types (A, B, and AB), with a notable frequency of type AB, making them valuable donors for feline blood transfusion programs. This study analyzed Ragdoll blood type frequencies and transfusion compatibility.
Area of Science:
- Veterinary Science
- Immunology
- Genetics
Background:
- Accurate feline blood typing is crucial for safe blood transfusions, preventing reactions and ensuring erythrocyte viability.
- Cats have three main blood types: A, B, and AB. Transfusions require matching blood types.
- Establishing a diverse feline blood donor pool is essential for veterinary medicine.
Purpose of the Study:
- To identify the prevalence of blood types A, B, and AB in Ragdoll cats.
- To compare Ragdoll blood type frequencies with those of Domestic Shorthair (DSH) cats.
- To assess the suitability of Ragdoll cats as blood donors in transfusion programs.
Main Methods:
- Blood typing of Ragdoll cats using gel column agglutination.
- Analysis of relationships between phenotypic traits, cat origin, and blood types.
- Estimation of transfusion reaction risks and neonatal isoerythrolysis (NI) risk.
Main Results:
- Among 61 Ragdolls, 77.1% were type A, 4.9% type B, and 18% type AB.
- Ragdolls showed a lower frequency of type A and a higher frequency of type AB compared to DSH cats.
- An estimated 5% of kittens were at risk for NI, with varying transfusion reaction risks depending on donor-recipient pairings.
Conclusions:
- Ragdoll cats exhibit all three feline blood types, including a significant proportion of type AB.
- Their blood type distribution supports their inclusion in feline blood donor programs.
- Ragdolls are identified as an ideal donor breed for enhancing feline transfusion services.
Background:
Transfusion of compatible blood types ensures the vitality of transfused erythrocytes and avoids transfusion reactions. Cats with types A, B, and AB blood should receive transfusions of the same blood type. In a feline blood donor program, it is therefore essential to have blood donors of all blood types available.
Objectives:
The objectives of this study were the identification of the 3 feline blood types in Ragdoll cats, the comparison of their frequencies with those of Domestic Shorthair (DSH) cats, and the determination of whether Ragdolls are suitable donors in a feline blood donor program.
Methods:
The blood type was determined by gel column agglutination from Ragdoll cats. The relationships between phenotypic traits, the origin of the cats, and the different blood types were examined. The frequencies for potential transfusion reactions and the risk for neonatal isoerythrolysis (NI) were estimated.
Results:
Of 61 typed Ragdolls, 77.1% had type A, 4.9% type B, and 18% type AB blood. The frequency of blood type A in Ragdolls was lower than in DSH cats (P = .02), while the frequency of blood type AB in Ragdolls was higher than in DSH cats (P = .0002). No relationship was found between blood type and origin of the cat or phenotypic traits. The estimated frequencies of major and minor transfusion reactions following an unmatched transfusion between Ragdolls (donors and recipients), Ragdoll donors and DSH recipients, and DSH donors and Ragdoll recipients were 4.7%, 6.7%, 4.6%, and 18.5%, 20.8%, 7.6%, respectively. The frequency of kittens at risk for NI was 5%.
Conclusion:
The presence of all 3 feline blood types and a relatively high incidence of AB type cats make Ragdolls an ideal donor breed to include in feline blood transfusion programs.
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