🧬 The Felid Wiki — 3,000 research summaries

This study validated and applied fecal steroid hormone assays to track ovarian activity in multiple felid species without restraint or blood sampling. The authors characterized how estrogen and proges…

Brown JL, Wasser SK, Wildt DE, Graham LH · Biology of Reproduction · 1994

This review compiled what was known about reproductive hormone patterns across the cat family, drawing heavily on noninvasive fecal and urinary steroid monitoring developed for zoo animals. The author…

Brown JL · Theriogenology · 2006

Pregnancy rates from artificial insemination in wild cats remain modest and variable, reflecting the biological and technical challenges of the procedure. This overview surveys reported success rates…

Collecting semen from nondomestic cats usually requires electroejaculation under anesthesia, a standardized technique that allows evaluation and banking of sperm. This overview surveys how electroejac…

The interval between successive estrous periods varies considerably among cat species and depends on whether ovulation has occurred. This overview surveys data on follicular phase duration, interestro…

Human chorionic gonadotropin mimics luteinizing hormone and is widely used to trigger ovulation in felids after follicular development has been stimulated. This overview surveys how the hormone is adm…

Applying in vitro fertilization to endangered cats aims to produce embryos from valuable individuals, including those that cannot breed naturally, for transfer to surrogates or for banking. This overv…

Most cats are induced ovulators, meaning that the surge of luteinizing hormone needed to release eggs is triggered by the physical stimulation of mating rather than occurring spontaneously on a fixed…

Intracytoplasmic sperm injection, in which a single sperm is injected directly into an egg, offers a route to fertilization when sperm are scarce or of poor quality. This overview surveys the developm…

Because female cats may mate with several males during a single estrus, individual litters can contain offspring sired by more than one father. This overview surveys evidence for multiple paternity ac…

Chemical signals among individuals can influence reproductive physiology and behavior in cats, including potential suppressive or stimulatory effects in social settings. This overview surveys how olfa…

The quality and developmental competence of eggs decline with maternal age, contributing to reduced fertility in older female cats. This overview surveys research on how aging affects felid oocytes, i…

When a cat ovulates without conceiving, the resulting corpora lutea secrete progesterone and produce a pseudopregnancy, a non-fertile luteal phase shorter than true gestation. This overview surveys th…

Some female felids ovulate or become reproductively receptive with few outward behavioral signs, a phenomenon called silent or behavioral estrus that complicates breeding management. This overview sur…

This study established a quantitative baseline for cheetah reproductive physiology by electroejaculating wild-caught males and comparing their semen to that of domestic cats. The cheetahs produced eja…

Wildt DE, Bush M, Howard JG, O'Brien SJ, Meltzer D, van Dyk A, Ebedes H, Brand DJ · Biology of Reproduction · 1983