Search Results - "Wildt, D.E"

Comparative cryobiological traits and requirements for gametes and gonadal tissues collected from wildlife species by Comizzoli, P, Songsasen, N, Hagedorn, M, Wildt, D.E

“…A major challenge to retaining viability of frozen gametes and reproductive tissues is to understand and overcome species-specificities, especially because…”
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Approaches and efficacy of artificial insemination in felids and mustelids by Howard, J.G., Wildt, D.E.

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Implementing artificial insemination as an effective tool for ex situ conservation of endangered avian species by Blanco, J.M., Wildt, D.E., Höfle, U., Voelker, W., Donoghue, A.M.

“…Approximately 503 of the known species of birds are classified as ‘endangered’ or ‘critical’. Captive propagation programs have proven useful in maintaining…”
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Oocyte biology and challenges in developing in vitro maturation systems in the domestic dog by Songsasen, N., Wildt, D.E.

“…The oocyte of the domestic dog is unique from that of other mammalian species studied to date. Ovulation occurs either once or twice per year, with the oocyte…”
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Oocyte quality and estradiol supplementation affect in vitro maturation success in the white-tailed deer ( Odocoileus virginianus) by Siriaroonrat, B., Comizzoli, P., Songsasen, N., Monfort, S.L., Wildt, D.E., Pukazhenthi, B.S.

“…White-tailed deer oocyte biology is not well documented. The objective of this study was to determine (1) the influence of estradiol (E 2) supplementation on…”
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Oral progestin induces rapid, reversible suppression of ovarian activity in the cat by Stewart, R.A, Pelican, K.M, Brown, J.L, Wildt, D.E, Ottinger, M.A, Howard, J.G

“…Abstract The influence of oral progestin (altrenogest; ALT) on cat ovarian activity was studied using non-invasive fecal steroid monitoring. Queens were…”
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Patterns of fecal gonadal hormone metabolites in the maned wolf ( Chrysocyon brachyurus) by Songsasen, N., Rodden, M., Brown, J.L., Wildt, D.E.

“…Ex situ populations of maned wolves are not viable due to low reproductive efficiency. The objective of this study was to increase knowledge regarding the…”
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Short term suppression of follicular recruitment and spontaneous ovulation in the cat using levonorgestrel versus a GnRH antagonist by Pelican, K.M., Brown, J.L., Wildt, D.E., Ottinger, M.A., Howard, J.G.

“…Suppression and subsequent rebound of ovarian activity using a progestin (levonorgestrel; Norplant) versus a GnRH antagonist (antide) was assessed in the…”
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Requirement for, and patterns of, pyruvate and glutamine metabolism in the domestic dog oocyte in vitro by Songsasen, N., Spindler, R.E., Wildt, D.E.

“…Supplementation of energy substrates to culture medium is essential for resumption and completion of meiosis in vitro for many mammalian species. Objectives…”
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Endocrine patterns of the estrous cycle and pregnancy of wildebeest in the Serengeti ecosystem by Clay, A. Moss, Estes, R.D, Thompson, K.V, Wildt, D.E, Monfort, S.L

“…Abstract Despite the importance of the western white-bearded wildebeest ( Connochaetes taurinus mearnsi ) to the Serengeti–Mara ecosystem, surprisingly little…”
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Reproductive steroid hormones and ovarian activity in felids of the Leopardus genus by Moreira, N., Monteiro-Filho, E.L.A., Moraes, W., Swanson, W.F., Graham, L.H., Pasquali, O.L., Gomes, M.L.F., Morais, R.N., Wildt, D.E., Brown, J.L.

“…Reproductive endocrine patterns were characterized in female ocelots (Leopardus pardalis; n = 3), tigrinas (Leopardus tigrinus; n = 2), and margays (Leopardus…”
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Chill Sensitivity and Cryoprotectant Permeability of Dechorionated Zebrafish Embryos,Brachydanio rerio by Hagedorn, M., Kleinhans, F.W., Wildt, D.E., Rall, W.F.

“…The zebrafish (Brachydanio rerio) was used as a model for basic studies of the chilling sensitivity, permeability and toxicity of cryoprotectants. In both…”
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Comparing ovulation synchronization protocols for artificial insemination in the scimitar-horned oryx ( Oryx dammah) by Morrow, C.J, Wolfe, B.A, Roth, T.L, Wildt, D.E, Bush, M, Blumer, E.S, Atkinson, M.W, Monfort, S.L

“…Ovarian response and pregnancy success in scimitar-horned oryx ( n=28) were compared, following treatment with two synchronization protocols and fixed-time…”
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Reproductive inefficiency in male black-footed ferrets (Mustela nigripes) by Wolf, K.N., Wildt, D.E., Vargas, A., Marinari, P.E., Ottinger, M.A., Howard, J.G.

“…The black‐footed ferret (Mustela nigripes), once considered extinct, has benefited from captive breeding and subsequent reintroduction into native habitat. A…”
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Cryoprotectant toxicity and cryopreservation success in IVF-derived domestic cat embryos after embryo transfer by Swanson, W.F, McRae, M.A, Wildt, D.E, Rall, W.F

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Developmental capacity of ivf-dertved domestic cat embryos following transfer to naturally-estrual, GnRH-treated recipients by Swanson, W.F., Penfold, L.M., Wildt, D.E.

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Short-term hypertonic exposure enhances in vitro follicle growth and meiotic competence of enclosed oocytes while modestly affecting mRNA expression of aquaporin and steroidogenic genes in the domestic cat model by Songsasen, N., Thongkittidilok, C., Yamamizu, K., Wildt, D.E., Comizzoli, P.

“…Using the domestic cat as a non-rodent, larger animal model, the objective was to determine the impact of a brief incubation in a hypertonic microenvironment…”
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The competence of germinal vesicle oocytes is unrelated to nuclear chromatin configuration and strictly depends on cytoplasmic quantity and quality in the cat model by Comizzoli, P., Pukazhenthi, B.S., Wildt, D.E.

“…BACKGROUND Chromatin configuration of the germinal vesicle (GV) and quality of the cytoplasm are critical factors in achieving oocyte meiotic and developmental…”
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In vitro growth and steroidogenesis of dog follicles are influenced by the physical and hormonal microenvironment by Songsasen, N, Woodruff, T K, Wildt, D E

“…The present study examined the influences of the physical and hormonal microenvironment on in vitro growth and steroidogenesis of dog follicles. Follicles were…”
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The impact and potential etiology of teratospermia in the domestic cat and its wild relatives by Pukazhenthi, Budhan S., Neubauer, Katrin, Jewgenow, Katarina, Howard, JoGayle, Wildt, David E.

“…Teratospermia (production of >60% morphologically abnormal sperm/ejaculate) is relatively common among various species in the family Felidae, which is…”
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