Assisted reproductive technology in nondomestic ungulates: A model approach to preserving and managing genetic diversity

Loskutoff, N.M.; Bartels, Paul; Meintjes, M.; Godke, R.A.; Schiewe, M.C.

doi:10.1016/0093-691x(94)00005-f

Cited by 70 publications

(50 citation statements)

References 53 publications

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“…This has already been performed in various species such as African antelopes, giraffe, deer, wild cattle, wood bison (Bison bison) and camelids [42,51]. Unfortunately, as in domestic animals, exogenous gonadotropins may lead to abnormal oocyte or follicle development, immunization, and variable ovarian response.…”

Section: Induction Of Ovulation Superovulation Embryo Collection Anmentioning

confidence: 99%

“…To reduce the vulnerability to predators, some species (e.g. Oryx dammah) exhibit a small window of receptivity to mating [42]; thus monitoring of the ovarian activity by fecal steroid metabolites is once again a good strategy in this case. Captivity may also induce physiological or behavioral troubles, propagation may be impaired because of sexual incompatibility between paired individuals (aggressiveness), and sexual activity may also be modified in solitary animals [40].…”

Section: Great Variability In Reproductive Physiology Anatomy and Bementioning

confidence: 99%

“…Therefore, modern approaches to non invasive endocrine to lateral vaginae by twin cervices [44]. Transcervical embryo recovery or AI may be achieved in most large mammals, but some species have impenetrable cervices like the giraffe (Giraffa giraffa) and okapi (Okapia johnstoni) [42], thus laparoscopic methods offer a good alternative for these kinds of animals.…”

Section: Great Variability In Reproductive Physiology Anatomy and Bementioning

confidence: 99%

“…For large mammals (bovids, cervids, equids), transcervical embryo collection or transfer are used [42,59,69]. However, sika deer before application to related endangered subspecies [14,45].…”

Section: Induction Of Ovulation Superovulation Embryo Collection Anmentioning

confidence: 99%

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Reproductive biotechnologies for endangered mammalian species

2000

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-Assisted reproductive techniques (gamete cryopreservation, artificial insemination, embryo transfer, and in vitro fertilization) allow to propagate small fragmented populations of wild endangered species or domestic breeds. There are the best way for producing several offspring from selected genitors in order to avoid inbreeding depression. However, few mammalian species have been well studied for their reproductive biology whereas huge differences have been observed between these species. Furthermore, materials, methods and experimental designs have to be adapted for each case and each limiting factor (wildness, poor quantity of biological material, disparate locations). Genome resource banking is currently arising and the most applied reproductive biotechnology remains artificial insemination. Assisted reproductive techniques currently developed in domestic species (intracytoplasmic sperm injection, nuclear transfer) may offer new opportunities for the propagation of endangered species. endangered species / artificial insemination / cryopreservation / in vitro fertilization / embryo Résumé -Biotechnologies de la reproduction appliquées aux mammifères en voie de disparition. Les techniques de reproduction assistée (cryoconservation des gamètes, insémination artificielle, transfert embryonnaire, fécondation in vitro) permettent d'accroître des populations, parfois dispersées géographiquement, d'espèces sauvages ou domestiques en voie de disparition. Ces méthodes sont le meilleur moyen pour produire plusieurs descendants à partir de géniteurs sélectionnés de façon à éviter la consanguinité. La biologie de la reproduction est connue pour peu d'espèces de mammifères alors que de grandes différences ont pourtant été mises en évidence entre ces espèces. En outre, les matériels, les méthodes, ainsi que les schémas expérimentaux doivent être adaptés à chaque cas et pour chaque facteur limitant (animaux sauvages, peu de matériel biologique, populations dispersées). Des banques génétiques sont actuellement en voie de constitution mais la technique la plus utilisée reste l'insémination artificielle. Cependant, des biotechnologies de la reproduction en cours de mise au point chez les animaux domestiques (injection intra-cytoplasmique de spermatozoïde, transfert nucléaire) pourraient offrir de nouvelles possibilités pour l'accroissement de populations menacées. espèces menacées / insémination artificielle / congélation / fécondation in vitro / embryon Reprod. Nutr. Dev. 40 (2000)

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Section: Induction Of Ovulation Superovulation Embryo Collection Anmentioning

confidence: 99%

Section: Great Variability In Reproductive Physiology Anatomy and Bementioning

confidence: 99%

Section: Great Variability In Reproductive Physiology Anatomy and Bementioning

confidence: 99%

Section: Induction Of Ovulation Superovulation Embryo Collection Anmentioning

confidence: 99%

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Reproductive biotechnologies for endangered mammalian species

2000

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“…In this regard, studies on reproduction in the Spanish ibex are highly relevant to the preservation of genetic resources in wildlife. A good knowledge of their reproductive physiology is therefore a prerequisite for a successful use of methods of assisted reproduction, widely used in domestic animals (gamete cryopreservation, artificial insemination, embryo transfer and in vitro fertilisation) [4,5]. They allow dispersion of the existing gene pools with minimal transport of animals and the introduction of new genes from wild populations into captive breeding programmes, counteracting a possible risk of extinction in one specific Spanish ibex population.…”

Section: Introductionmentioning

confidence: 99%

Seasonal ovulatory activity and plasma prolactin concentrations in the Spanish ibex(Capra pyrenaica hispanica) maintained in captivity

Santiago-Moreno¹,

Gómez-Brunet²,

González-Bulnes³

et al. 2003

Reprod. Nutr. Dev.

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-Seasonal changes in ovulatory activity, assessed by the measurement of plasma progesterone and plasma prolactin concentrations were monitored in 10 Spanish ibex females captured in the National Wildlife Reserve of Sierra Nevada (South Spain, 37º N). Five of the 10 female ibex showed ovulatory activity with a mean (± s.e.m.) duration of the oestrous cycle of 19.4 ± 1 days (range: 17-23 days). On average, the five cyclic females weighed 28 ± 0.9 kg. Progesterone cycles occurred only in animals older than 4 years of age. Ovulatory activity extended from December to January. The duration of the breeding season was 43.2 ± 7.7 days. Ibex females younger than 4 years of age had a body weight lower (P < 0.01) than that of adults and none of them displayed ovulations. Plasma concentrations of prolactin levels were significantly affected by season (P < 0.05), following a trend that was roughly parallel to daylength. The highest values occurred in the spring (119.7 ± 21.4 ng·mL -1 ) and the summer (139.3 ± 19.8 ng·mL -1 ), the lowest values in the autumn (26 ± 7.4 ng·mL -1 ) and in the winter (19.7 ± 3.2 ng·mL -1 ). Our results showed a very restricted breeding season, despite the fact that the Spanish ibex originates from and lives in a temperate latitude, revealing a remarkably good adaptation to the harsh climatic and nutritional conditions of their mountainous habitat.breeding season / ovulation / progesterone

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In Vitro Culture of Deer Embryos

Berg¹,

Thongphakdee²

2019

Methods in Molecular Biology

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Assisted reproductive technology in nondomestic ungulates: A model approach to preserving and managing genetic diversity

Cited by 70 publications

References 53 publications

Reproductive biotechnologies for endangered mammalian species

Reproductive biotechnologies for endangered mammalian species

Seasonal ovulatory activity and plasma prolactin concentrations in the Spanish ibex(Capra pyrenaica hispanica) maintained in captivity

In Vitro Culture of Deer Embryos

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