Preparing Your Queen for Breeding

January 15, 2026

Theresa Gleason EdD

Preparing to breed your queen (female cat) is an exciting journey, but it starts with a serious commitment to her health and well-being. Responsible breeding means always putting the cat’s welfare first.¹ Here is a breakdown of how to prepare your queen, and what you need to know about the tom (male cat) before you begin.

Your Queen’s Health and Genetics: The Foundation

The core principle of ethical breeding is to ensure no suffering for the mother or her kittens. What this means is diving into health testing long before mating occurs. Partner and work closely with your veterinarian to select suitable breeding animals; they may also assist you with arranging crucial preventive genetic and health testing, such as an echocardiogram for inherited conditions like hypertrophic cardiomyopathy (HCM). This will help protect the breeding cat and prevent passing the condition to their offspring.² Infectious disease checks should always be considered to include Feline Leukemia Virus (FeLV) and Feline Immunodeficiency Virus (FIV) before mating.¹

Genetic Diversity and Blood Typing

Breeding should not just involve the “best” cats, but healthy cats most importantly. You must include cats who will maintain genetic diversity within the breed.¹ Selective breeding focused only on appearance can lead to inbreeding, which reduces genetic variability and can result in genetic diseases and malformations. Blood typing both the tom and queen is highly recommended, especially for breeds prone to have blood group B (like Persians, British Shorthairs, Devon Rex, and Birmans). Why? To reduce the risk of neonatal isoerythrolysis (NI), which is a potentially fatal condition that occurs in kittens when a type B queen is bred with a type A tom.¹

Environment & Infection Control

A safe, stable environment is critical for a successful pregnancy and kitten health.

Keeping your cats in smaller groups helps reduce stress and makes managing any subclinical infections easier. A group size of just three or four cats has been described as manageable for infectious disease outbreaks, with stress levels similar to those of single-living cats. Infectious diseases are a constant threat. Always quarantine any new or returning cats (like those coming back from a cat show or a breeding visit) for 2–3 weeks in a separate area to minimize the risk of introducing infections. It is best to keep your pregnant queen separate from other cats, ideally during the last 2–3 weeks of gestation, to prevent her from developing a new infection and transmitting it to her unborn kittens.²

Nutrition and Conditioning

The queen’s good physical condition is vital before and throughout her pregnancy, and they must be in good condition when mated. It is essential to prevent her from becoming overweight, as obesity has been linked to both dystocia (difficult labor) and stillbirths. The queen’s energy requirements increase steadily during pregnancy, typically rising by about 10% per week. By the end of her pregnancy, her food intake should be 25–50% above her normal maintenance levels.²

What About the Tom? (Poor Libido)

Sometimes the issue is not the queen but the tom’s unwillingness to mate (poor libido). This concern is often linked to management issues or underlying medical conditions and should be ruled out with your veterinarian. However, territory does matter for the tom and may be extremely important for successful breeding. It is best to bring the queen to the tom’s territory. To ensure successful breeding, consider the housing to include vertical space (like shelves or climbing areas). Changes to a tom’s territory (even using scented cleaners) can actively inhibit breeding behaviors for tom cats.³

 

References

1. “2024 AAFP Responsible Breeding in Feline Medicine Position Statement.” 2024. Journal of Feline Medicine and Surgery26 (2): 1098612X241227826. https://doi.org/10.1177/1098612X241227826.
2. Holst, Bodil Ström. “Feline Breeding and Pregnancy Management: What Is Normal and When to Intervene.” Journal of Feline Medicine and Surgery24, no. 3 (2022): 221–31. https://doi.org/10.1177/1098612X221079708.
3. Little, Susan. “Feline Reproduction: Problems and Clinical Challenges.” Journal of Feline Medicine and Surgery13, no. 7 (2011): 508–15. https://doi.org/10.1016/j.jfms.2011.05.008.