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Control of Pig Reproduction IX

Control of Pig Reproduction IX

Gametes and Embryos

bp0019cpr1 | Gametes and Embryos | CPR2013

Oocyte and embryo metabolomics

Krisher Rebecca L.

There is still much we do not understand about the metabolic requirements of oocytes and embryos. Their remarkable metabolic plasticity during in vitro culture has hampered our ability to make significant advances in culture media design that would better support optimal physiology. A new tool, metabolomics, may revolutionize what we know about the interactions between embryos and their culture environment. Armed with this knowledge, we may design more effective culture ...

bp0019cpr2 | Gametes and Embryos | CPR2013

Mechanisms affecting litter sex ratio and embryo quality

Oliver G. , Vendramini P.

Sex ratios that deviate from 1:1 have been observed in response to a number of stimuli. In this review we will discuss sex ratio biasing, and the evolutionary and molecular mechanisms thought to underlie this phenomena in mammals. The role of embryo quality will be discussed in relation to sex ratio modulation and epigenetic programing of the embryo. Sex ratio skewing has been studied in many species and several factors have been proposed as influencing secondary sex rat...

bp0019cpr3 | Gametes and Embryos | CPR2013

Boar seminal plasma proteins and their relevance to reproductive technologies

W.L. Flowers1, K.R. Stewart1, T. Gall2, S. Novak3, M.K. Dyck3 , and R.N. Kirkwood4 , Nagase H , Woolley DE

Seminal plasma proteins participate in a number of events important for fertilization and the establishment of pregnancy. As a result, attempts have been made to use them to enhance reproductive performance associated with several swine reproductive technologies. Inclusion of seminal plasma into cryopreservation and sex-sorting protocols improved sperm viability and membrane integrity and suppressed capacitation-like changes which are considered to be major challenges as...

bp0019cpr4 | Gametes and Embryos | CPR2013

Cryopreservation of female germplasm in pigs

Tam�s Somfai1, Kazuhiro Kikuchi2, Hiroyuki Kaneko2, Junko Noguchi2, , Koji Yoshioka3, Takashi Nagai1

Cryopreservation of female germplasm has basic importance in preservation and distribution of genetic lines in farm animals. Although vitrification technology has been applied for the cryopreservation of porcine oocytes and ovarian tissues, reduced developmental competence of preserved oocytes and the lack of offspring produced from them underlines the importance for further developments in cryopreservation protocols for this purpose. This review discusses the problems o...