Ovarian activity during the anoestrus and the reproductive season of the red fox (vulpes vulpes L.)

Mondain-Monval, M.; Dutourné, B.; Bonnin-Laffargue, M; Canivenc, R; Scholler, R

doi:10.1016/0022-4731(77)90010-3

Cited by 28 publications

(8 citation statements)

References 8 publications

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“…Neither abortion nor dystocia was video-recorded in any of the groups throughout the trial. Mean gestation periods were between 52.1 and 53.4 days in the natural mating and artificial insemination groups, which were consistent with the previous reports (1, 4, 7). Mean litter size was 3.7–4.3 cubs with natural mating, and 4.4 cubs with artificial insemination, showing a subtle difference.…”

Section: Discussionsupporting

confidence: 92%

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Breeding profiles at the periparturient stage in captive red foxes (Vulpes vulpes) mating naturally or subjected to artificial insemination in Japan

Yatu¹,

Sato²,

Kobayashi

et al. 2019

Journal of Veterinary Research

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Introduction: Breeding profiles at the periparturient stage in red foxes which mated naturally or were subjected to artificial insemination were retrospectively surveyed using 130 vixens during their reproductive seasons of 2012–2017 in Japan. Material and Methods: Natural mating vixens were encouraged a maximum of three times with the same male, while artificial insemination was conducted using frozen-thawed semen with the bovine semen extender as a diluent. Results: With natural mating, conception rates after one, two, and three copulations were 55.8%, 68.0%, and 85.7%, respectively, showing a significant difference between the rates for one and three copulations. Conception rates with artificial insemination were 82.4%. Mean gestation periods were between 52.1 and 53.3 days in all groups. Mean litter sizes were 3.7–4.3 cubs with natural mating, and 4.4 cubs with artificial insemination. Although some sporadic and inconsistent changes in litter sizes were noted between primiparous and multiparous groups, these were of doubtful clinical importance. Conclusion: This is the first report from Japan concerning basic breeding events of red fox vixens in captivity.

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Section: Discussionsupporting

confidence: 92%

“…Although foxes have been defined as economically valuable fur-bearing animals (4, 5, 7, 8), in Japan they are now raised only in zoos. In maintaining a small herd, cumulative knowledge regarding vaginal mating (natural mating) or artificial insemination is essential to avoid genetic degeneration and to maximise fertility for breeding.…”

Section: Introductionmentioning

confidence: 99%

Breeding profiles at the periparturient stage in captive red foxes (Vulpes vulpes) mating naturally or subjected to artificial insemination in Japan

Yatu¹,

Sato²,

Kobayashi

et al. 2019

Journal of Veterinary Research

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“…Plasma progesterone levels indicate activities of the corpus luteum and placenta, so an estimate of the length of gestation can be made based upon duration of the elevated levels (Mondain-Monval et al, 1977). The first date on which an adult female was captured with an elevated plasma progesterone level was 14 December; and thereafter all females had elevated levels until 3 March.…”

Section: Resultsmentioning

confidence: 99%

Seasonal reproduction of the springhare (Pedetes capensis) in southeastern Zimbabwe

Kofron

1987

African Journal of Ecology

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Summary Female springhares in a population in southeastern Zimbabwe experienced seasonal reproduction during the study period from November 1983 to November 1984. In general, only adult springhares comprised the population from November to February. Adult females were pregnant during December, January and February, and subsequently they bore their young during March. Length of gestation was about 79 days. Later, some females experienced a second pregnancy. In the majority of females, pregnancy and birth of young was restricted to the wet season when food was readily available. During the dry season when food was sparse, only a small portion of females in the population reproduced. Adult males appeared able to reproduce throughout the year. Juvenile springhares first emerged from the burrows during May approximately 9 weeks after birth, and they attained sexual maturity at an age of about 8 months. RÉSUMEÉ Cette étude, couvrant la période novembre 1983‐novembre 1984, eut pour objet l'étude de la reproduction saisonnière chez les femelles de lièvres sauteurs d'une population au su‐est du Zimbabwe. En général, la population ne comprend que des adultes entre novembre et février. Les femelles adultes sont prégnantes en décembres, janvier et février et ensuite elles mettent bas leur jeune en mars. La durée de gestation est d'environ 79 jours. Plus tard, certaines femelles ont une seconde portée. Pour la majorité des femelles, la grossesse et la mise bas se déroulent durant la saison des pluies au moment où la nourriture est disponible en abondance. Durant la saison sèche, lorsqu'il y a moins de nourriture, une faible proportion des femelles se reproduisent. Les mǎles adultes semblent ětre capables de reproduire tout au long de l'annee. Les lièvres sauteurs juvéniles émergent du terrier durant le mois de mai, environ neuf mois après la naissance, et atteignent leur maturité sexuelle à l'ǎge de huit mois environ.

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“…Although not all but most canids including domestic dog (Concannon, 2011), blue fox (Moller, 1973) and red fox (Mondain-Monval et al, 1977), have been defined as spontaneous ovulators. The known induced ovulating canid is the maned wolf (Johnson et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

Ovulation, fertilization and preimplantation embryonic development in raccoon dogs ( Nyctereutes procyonoides )

Feng

2017

Animal Reproduction Science

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Ovarian activity during the anoestrus and the reproductive season of the red fox (vulpes vulpes L.)

Cited by 28 publications

References 8 publications

Breeding profiles at the periparturient stage in captive red foxes (Vulpes vulpes) mating naturally or subjected to artificial insemination in Japan

Breeding profiles at the periparturient stage in captive red foxes (Vulpes vulpes) mating naturally or subjected to artificial insemination in Japan

Seasonal reproduction of the springhare (Pedetes capensis) in southeastern Zimbabwe

Ovulation, fertilization and preimplantation embryonic development in raccoon dogs ( Nyctereutes procyonoides )

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