Results 31 to 40 of about 297,371 (264)

Hepes na produção de embriões bovinos in vitro Hepes on in vitro production of bovine embryos

open access: yesCiência Rural, 2000
O objetivo do presente estudo foi de avaliar a amplitude da variação de pH em meios de maturação e de cultivo embrionário, com diferentes concentrações do tampão HEPES.
Marcelo Marcos Montagner   +6 more
doaj   +1 more source

[Chimeric embryos and pseudo-embryos: An alternative to human embryos for research].

open access: yesMedecine sciences : M/S, 2021
L’étude du développement humain est indispensable afin d’approfondir nos connaissances et, à long terme, perfectionner nos stratégies thérapeutiques dans les domaines de la médecine de la reproduction et de la médecine régénératrice. Face à la limite d’accès aux embryons surnuméraires et à l’interdiction d’en créer de nouveaux seulement à des fins de ...
Savatier, Pierre   +5 more
openaire   +2 more sources

Comparison of two doses of eCG for obtaining embryos in llama [PDF]

open access: yesSPERMOVA, 2021
The study was developed at the Pampa del Arco Experimental Center of the National University of San Cristóbal de Huamanga, the objective was to evaluate doses of 800 IU (T1) and doses of 1000 IU (T2) of eCG to obtain embryos.
Cesar A. Olaguivel   +2 more
doaj   +1 more source

Effect of the timing of embryo isolation on the output of seedlings of sour cherry varieties when cultivated in vitro

open access: yesБиотехнология и селекция растений, 2021
The breeders are faced with the task of the fastest breeding of sour cherry (Prunus cerasus L) varieties, which will be able to fill a niche among the insurance stone fruit crops, complementing the existing assortment.
N. N. Kovalenko, N. V. Polivara
doaj   +1 more source

Seasonal Influences on Different Stages of In Vitro Fertilization: Stimulation and Fertilization [PDF]

open access: yesInternational Journal of Fertility and Sterility, 2008
Background Effect of seasonal changes in human reproduction has been intensively researched. Some studies acknowledge influences of seasonal variation on natural conception, while others can not confirm them.
Soraya Khafri   +3 more
doaj   +1 more source

Metabolomics analysis of the effect of GnRH on the pregnancy rate of ewes with estrus synchronization scheme based on progesterone

open access: yesFrontiers in Veterinary Science
IntroductionGonadotropin-releasing hormone (GnRH) is widely used in the timed artificial insemination protocol for sheep. However, there remains a debate regarding its impact on pregnancy rates during artificial insemination.
Jing Zhang   +6 more
doaj   +1 more source

Extracellular vesicles synchronize cellular phenotypes of differentiating cells

open access: yesJournal of Extracellular Vesicles, 2021
During embryonic development, cells differentiate in a coordinated manner, aligning their fate decisions and differentiation stages with those of surrounding cells. However, little is known about the mechanisms that regulate this synchrony.
Tomohiro Minakawa   +6 more
doaj   +1 more source

Atmospheric pollutants and their impact on murine and human reproduction

open access: yesActualidades Biológicas, 2022
Atmospheric pollution is caused by the presence or combination of physical, chemical, or biological pollutants in the air. In recent years, the most studied pollutant is particulate matter (PM), a varied mixture of solid and liquid particles.
Yulieth Guerra-Rangel   +1 more
doaj   +1 more source

The Embryo-Sac and Embryo of certain Penaeaceae

open access: yesAnnals of Botany, 1909
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +3 more sources

Acceptance of donor eggs, donor sperms, or donor embryos in Indian infertile couples

open access: yesJournal of Human Reproductive Sciences, 2018
Context: The reduction or loss of natural fertility is deeply painful in couples that are considering the use of donor gametes or donor embryos. This is the first study to assess the acceptability of donor gametes or embryos in Indian population.
Kaberi Banerjee, Bhavana Singla
doaj   +1 more source

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