ESTROUS CYCLES, COPULATION, AND PREGNANCY IN THE FENNEC FOX (VULPES ZERDA)

@inproceedings{Valdespino2002ESTROUSCC,
  title={ESTROUS CYCLES, COPULATION, AND PREGNANCY IN THE FENNEC FOX (VULPES ZERDA)},
  author={Carolina Valdespino and Cheryl S. Asa and Joan E. Bauman},
  year={2002}
}
Abstract Characteristics of estrus, mating, and pregnancy were studied in captive fennec foxes. [] Key Result Proestrus, judged by vulval swelling, began 6.5 (±0.7) days before estrus and was not accompanied by sanguineous discharge. Percentage cornified epithelial cells in vaginal smears increased at the time of estrus. In 8 of 10 estrous periods, a single mating followed by an extremely long copulatory lock (mean 1 h 58 min) was observed during continuous video monitoring.
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38 Citations

EVIDENCE FOR INDUCED ESTRUS OR OVULATION IN A CANID, THE ISLAND FOX (UROCYON LITTORALIS)
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Despite the low blood progesterone concentration and absence of a fetus in the uterus, the histopathological zonary placental findings indicated that the fennec fox had been pregnant.
Geographical Origin, Delayed Implantation, and Induced Ovulation Explain Reproductive Seasonality in the Carnivora
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It is found that the majority of Carnivora species retained the birth seasonality displayed in the wild, but there was no evidence of an absolute photoperiodic signal for the timing of mating or conception.
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The prevalence of both pyometra and endometrial hyperplasia was associated not only with treatment with the two most common contraceptives but also with the number of years barren (i.e., not producing a litter and not contracepted).
GnRH-agonist induction of fertile estrus with either natural mating or artificial insemination, followed by birth of pups in gray wolves (Canis lupus).
Characterizing estrus by trans-abdominal ultrasounds, fecal estrone-3-glucuronide, and vaginal cytology in the Steller sea lion (Eumetopias jubatus).
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This review highlights current knowledge on canid reproduction with emphasis on endocrine and paracrine controls of follicular development and discusses future research priorities, including advancing the understanding of anoestrous termination and role ofParacrine factors in canine folliculogenesis.
Canid Reproductive Biology: Norm and Unique Aspects in Strategies and Mechanisms
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This review summarizes the current knowledge of canid reproduction, including estrus cyclicity, seasonality, and seminal traits, with the emphasis on species diversity.
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