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bp0018cpr20 | Management of Ovarian Activity in Swine | CPR2009

Post-weaning Altrenogest treatment in primiparous sows; the effect of duration and dosage on follicular development and consequences for early pregnancy

van Leeuwen J.J.J. , Williams S. , Kemp B. , Soede N.M.

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bp0019cpr8 | Oocyte-embryo Interplay with in vitro or in vivo milieu | CPR2013

Comparative transcriptomic analysis between in vivo derived porcine 4-cell and morula embryos

Zhou C. , Tsoi S. , Dixon W.T. , Foxcroft G.R. , Dyck M.K.

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bp0019cpr19 | Gestation Elicited | CPR2013

Next Generation Sequencing for microRNA profiling in the porcine endometrium

Krawczynski K , Bauersachs S , Blum H , Kaczmarek MM

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bp0014cpr8 | Ovarian and Uterine Function | CPR1993

The role of insulin-like growth factors and epidermal growth factor-related peptides in intraovarianregulation in the pig ovary

Hammond J. M. , Samaras S. E. , Grimes R. , Leighton J. , Barber J. , Canning S. F. , Guthrie H. D. ,

The autocrine and paracrine role of the insulin-like growth factors (IGFs) and epiderrnal growth factor (EGF)-related peptides in pig ovary are reviewed. For convenience, each of these regulatory systems is divided into several interactive components: regulated expression of the growth factors, growth factor reception at the cell surface and intracellular action of the growth factors. In addition, the concept of regulated bioavailability and targeting of growth factors in...

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bp0003rdr10 | Development of the Reproductive Axis | REDR1994

Development of the sheep ovary during fetal and early neonatal life and the effect of fecundity genes

McNatty KP , Smith P , Hudson NL , Heath DA , Tisdall DJ , O W-S , Braw-Tal R

In female sheep fetuses, the mesonephros and genital ridge can be identified at days 20 and 23 of gestation (term = 145 days), respectively. Moreover oogonia can be observed at the genital ridge from as early as day 23. Around day 55 of gestation, some germ cells enter meiosis coincident with the arrival of mesonephric-derived somatic cells (i.e. the rete ovarii). From days 75, 100, 120 and 135 of gestation, primordial (one layer of flattened granulosa cells), primary (one...

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bp0003rdr22 | Regulation of Gonadotrophin Secretion | REDR1994

Dopaminergic control of LH secretion by the Al5 nucleus in anoestrous ewes

Thiery JC , Gayrard V , Le Corre S , Viguié C , Martin GB , Chemineau P , Malpaux B

Annual variations in the secretion of LH are responsible for seasonal changes in ovulatory activity in ewes. This hormonal pattern reflects an increase in the intensity of the negative feedback exerted by oestradiol under long days. Neuro-pharmacological studies have shown that this inhibition of LH secretion involves activation of catecholaminergic systems from preoptic and mediobasal hypothalamus (MBH) by oestradiol during anoestrus, and that 5-hydroxytryptamine inputs may a...

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bp0010ised13 | (1) | ISED2019

Trophectoderm and embryoblast proliferate at slow pace in the course of embryonic diapause in the roe deer (Capreolus capreolus)

Rüegg AB , Bernal S , Moser FN , Rutzen I , Ulbrich SE

The European roe deer (Capreolus capreolus) was the first mammal in which embryonic diapause has been described. While diapause is characterized by a complete developmental arrest in some species, roe deer blastocysts show a very slow, yet continuous growth. To date, it is neither known whether this growth is accompanied by developmental progression nor whether it is uniform in both, the trophectoderm (TE) and the inner cell mass (ICM). We collected roe deer blastocysts during...

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bp0012cpr11 | Genetic Factors Influencing Prolificacy | CPR1985

Influencing prolificacy of sows by selection for physiological factors

Johnson R. K. , Zimmerman R. K. , Lamberson W. R. , Sasaki† S.

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bp0013cpr18 | Early Pregnancy | CPR1989

Causes and consequences of early embryonic diversity in pigs

Pope W. F. , Xie S. , Broermann D. M. , Nephew K. P.

Summary. Within 14 h of ovulation, follicular development in gilts was skewed towards a majority of mature follicles, based on their endocrine milieu. Oocyte maturation was also skewed, with a majority of the oocytes being meiotically more developed than the rest. Similarly, the pattern of ovulation in gilts was such that 70% of the follicles ovulated during a short period of time, while most of the remaining 30% ovulated over a more protracted period. Th...

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bp0018cpr13 | State of The Art in-omic Biology of Swine | CPR2009

Global protein profiling of porcine cumulus cells in response to native oocyte secreted factors in vitro

Paradis F. , Moore H. , Novak S. , Dyck M.K. , Dixon W.T. , Foxcroft G.R.

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Bioscientifica Proceedings

Post-weaning Altrenogest treatment in primiparous sows; the effect of duration and dosage on follicular development and consequences for early pregnancy

Comparative transcriptomic analysis between in vivo derived porcine 4-cell and morula embryos

Next Generation Sequencing for microRNA profiling in the porcine endometrium

The role of insulin-like growth factors and epidermal growth factor-related peptides in intraovarianregulation in the pig ovary

Development of the sheep ovary during fetal and early neonatal life and the effect of fecundity genes

Dopaminergic control of LH secretion by the Al5 nucleus in anoestrous ewes

Trophectoderm and embryoblast proliferate at slow pace in the course of embryonic diapause in the roe deer (Capreolus capreolus)

Influencing prolificacy of sows by selection for physiological factors

Causes and consequences of early embryonic diversity in pigs

Global protein profiling of porcine cumulus cells in response to native oocyte secreted factors in vitro

BiosciAbstracts