Results 11 to 20 of about 6,581 (145)

In vitro production of bovine embryos derived from individual donors in the Corral® dish [PDF]

, 2017
Background: Since the identity of the embryo is of outmost importance during commercial in vitro embryo production, bovine oocytes and embryos have to be cultured strictly per donor.
A Cebrian-Serrano, Ann Van Soom, C Carolan, C O’Neill, C O’Neill, E Wydooghe, Eline Wydooghe, EM O’Doherty, Erik Mullaart, G Vajta, Hiemke M. Knijn, I Donnay, IGF Goovaerts, J Merton, JF Hasler, JF Hasler, JHF Pontes, JS Merton, K Matsuura, L Ferry, LJ Ding, M Hoelker, M Lane, Maaike Catteeuw, ML Reed, N Gopichandran, NK Khurana, P George, PEJ Bols, PEJ Bols, R Boni, R Roover De, RB Gilchrist, S Spanos, SA Machado, SJ Dai, T Ebner, T Fujita, WG Feng   +38 more
core   +2 more sources

Long sperm fertilize more eggs in a bird [PDF]

, 2015
Sperm competition, in which the ejaculates of multiple males compete to fertilize a female's ova, results in strong selection on sperm traits. Although sperm size and swimming velocity are known to independently affect fertilization success in certain ...
Bennison, C., Birkhead, T., Hemmings, N., Slate, J.   +3 more
core   +1 more source

Psychological and physiological adaptations to sperm competition in humans [PDF]

, 2005
Postcopulatory competition between males, in the form of sperm competition, is a widespread phenomenon in many animal species. The extent to which sperm competition has been an important selective pressure during human evolution remains controversial ...
Goetz, AT, Pound, N, Shackelford, TK
core   +2 more sources

A cost for high levels of sperm competition in rodents: Increased sperm DNA fragmentation [PDF]

, 2016
Spermcompetition, a prevalent evolutionary process inwhich the spermatozoa of two or more males compete for the fertilization of the same ovum, leads to morphological and physiological adaptations, including increases in energetic metabolism that may ...
Delbarco-Trillo, Javier, García-Álvarez, Olga, Garde, José Julián, Roldán, Eduardo R. S., Soler, Ana J., Tourmente, Maximiliano   +5 more
core   +1 more source

Construction of cytoplasmic molecular markers distinguishing Danio rerio from Gobiocypris rarus at high identity domains based on MP-PCR strategy and Sybr Green I detection [PDF]

, 2008
To distinguish the cytoplasm of Danio rerio from that of Gobiocypris rarus, we cloned G. rarus COXI and constructed cytoplasmic molecular markers at the high identity domains of COXI by mutated primer PCR (MP-PCR for short). Then Sybr Green I was used to
Pei, De-Sheng, Sun, Yong-Hua, Zhu, Zuo-Yan, Zhu, ZY, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China   +3 more
core   +1 more source

Propulsion in a viscoelastic fluid

, 2007
Flagella beating in complex fluids are significantly influenced by viscoelastic stresses. Relevant examples include the ciliary transport of respiratory airway mucus and the motion of spermatozoa in the mucus-filled female reproductive tract. We consider
Bird R. B., Bird R. B., Blake J. R., Blake J. R., Bray D., Denton R., Doi M., Dunn P. F., Eliezer N., Eric Lauga, Gelman R. A., Gilboa A., Giordano A. M., Gray J., Gueron S., Gueron S., Hayat T., Ho H. C., James S. L., Katz D. F., Katz D. F., King M., Larson R. G., Larson R. G., Lillehoj E. P., Liron N., Litt M., Litt M., Meyer F. A., Meyer F. A., Ross S. M., Shake M. P., Suarez S. S., Suarez S. S., Suarez S. S., Suarez S. S., Tam P. Y., Tanner R. I., Wolf D. P., Wolf D. P., Wolf D. P., Wolf D. P., Wolf D. P., Yates G. T.   +43 more
core   +1 more source

Cryptic female choice favours sperm from major histocompatibility complex-dissimilar males [PDF]

, 2013
Cryptic female choice may enable polyandrous females to avoid inbreeding or bias offspring variability at key loci after mating. However, the role of these genetic benefits in cryptic female choice remains poorly understood. Female red junglefowl, Gallus
Alcaide M, Bakst MR, Burnham KP, Etches RJ, Janeway CA, Klein J, Olsson M, Parker GA, Trivers RL   +8 more
core   +1 more source

Differential sperm storage by female zebra finches Taeniopygia guttata [PDF]

, 2017
When females mate promiscuously, female sperm storage provides scope to bias the fertilization success towards particular males via the non-random acceptance and utilization of sperm.
Bakst MR, Birkhead TR, Darwin CR, R Core Team   +3 more
core   +1 more source

Pandemic Im/mobilities, reproductive injustices, and assisted reproductive technology use among Taiwanese LGBTQ parents

Feminist Anthropology, EarlyView.
Abstract This article examines how mobility restrictions imposed by governments during the COVID‐19 pandemic intensified reproductive and mobility injustices. It traces shifting configurations of privilege and inequality within marginalized groups whose reproductive desires remain legally and socially unrecognized.
Sara L. Friedman
wiley   +1 more source

Assessing risks of invasion through gamete performance: farm Atlantic salmon sperm and eggs show equivalence in function, fertility, compatibility and competitiveness to wild Atlantic salmon [PDF]

, 2014
Adaptations at the gamete level (a) evolve quickly, (b) appear sensitive to inbreeding and outbreeding and (c) have important influences on potential to reproduce.
Einum, Sigurd, Fleming, Ian A., Gage, Matthew J.G., Holt, William V., Yeates, Sarah E.   +4 more
core   +1 more source