Failure of Pregnancy in cats

General approach.

Please refer to the general discussion of Failure of Pregnancy for basic concepts.

There is little written in the peer reviewed literature about failure of pregnancy in cats.

Fournier et al (2016) reported on pregnancy failure, stillbirth and kitten mortality in France. Their statistics were based on 7075 litters and 28,065 kittens. Among pregnant queens 8.4% had failure of pregnancy. Mean litter size was 4.0 ± 1.9. 8.5% were stillborn. Neonatal and other kitten mortality rate was 8.2%. 16.0% of kittens born died before weaning.

Fournier A, Masson M, Corbière F, Mila H, Mariani C, Grellet A, Chastant-Maillard S. Epidemiological analysis of reproductive performances and kitten mortality rates in 5,303 purebred queens of 45 different breeds and 28,065 kittens in France. Reprod Domest Anim 2016;

Non infectious causes

Infectious causes

Givens and Marley (2008) provide the following list of causes in cats

Givens MD, Marley MS. Infectious causes of embryonic and fetal mortality. Theriogenology. 2008; 70: 270-285