The embryo-maternal interaction occurs during the early stages of embryo development and is essential for implantation full-term embryo. In bovines, secretion interferon Tau (IFNT) elongation main signal pregnancy recognition, but its expression starts around blastocyst stage. Embryos release extracellular vesicles (EVs) as an alternative mechanism communication. aim study was to determine whether EVs secreted by bovine embryos blastulation (D5-D7) could induce transcriptomic modifications,...

Over the last few years, several commercial FSH products have been developed for cattle superovulation (SOV) purposes in Multiple Ovulation and Embryo Transfer (MOET) programs. The SOV response is highly variable among individuals remains one of main limiting factors obtaining a profitable number transferable embryos. In this study, follicle stimulating hormone (FSH) from different origins was included two protocols, (a) purified pig pituitary extract (NIH-FSH-p; doses/day, 12 h apart, four...

Context. Eclipsing time variations are observed in many close binary systems. In particular, for several post-common-envelope binaries (PCEBs) that consist of a white dwarf and main sequence star, the observed-minus-calculated (O–C) diagram suggests real or apparent orbital period driven by Jupiter-mass planets as result magnetic activity, so-called Applegate mechanism. The latter explains changes stellar quadrupole moment due to activity. Aims. this work we explore feasibility driving...

The study aimed to assess the effect of long-acting bST treatment, in a dose that only increases IGF-I plasma concentrations, on ovarian and fertility markers estrous synchronized ewes were fed keep their bodyweight. Three experiments designed evaluate this effect: Experiment 1, 18 distributed groups (bST 0, 30, 50 mg) measure insulin for 15 days; 2, 92 (5 replicates) two (0 30 mg bST) using 6-day progesterone protocol during breeding season follicular luteal performances, ovulation, after...

Context. Early-type stars have convective cores due to a steep temperature gradient produced by the CNO cycle. These can host dynamos and generated magnetic fields may be relevant in explaining magnetism observed Ap/Bp stars. Aims. Our main objective is characterise core differential rotation. We aim carry out first quantitative analysis of relation between activity cycle rotation period. Methods. used numerical 3D star-in-a-box simulations 2.2 M ⊙ A-type star with roughly 20% stellar radius...

Aims. The aim of this study is to explore the magnetic and flow properties fully convective M dwarfs as a function rotation period P rot Reynolds Re Prandlt numbers Pr . Methods. We performed three-dimensional simulations stars using star-in-a-box set-up. This set-up allows global dynamo in sphere embedded Cartesian cube. equations non-ideal magnetohydrodynamics were solved with ENCIL C ODE used stellar parameters an M5 dwarf 0.21 ⊙ at three rates corresponding periods ( ) 43, 61, 90 days,...

Eclipsing time variations have been observed for a wide range of binary systems, including post-common-envelope binaries. A frequently proposed explanation, apart from the possibility having third body, is effect magnetic activity, which may alter internal structure secondary star, particularly its quadrupole moment, and thereby cause quasi-periodic oscillations. Here we present two compressible non-ideal magneto-hydrodynamical (MHD) simulations dynamo in solar mass one them with three times...

Although timing variations in close binary systems have been studied for a long time, their underlying causes are still unclear. A possible explanation is the so-called Applegate mechanism, where strong, variable magnetic field can periodically change gravitational quadrupole moment of stellar component, thus causing observable period changes. One exhibiting such strong orbital RS CVn HR 1099, whose activity cycle has by various authors via photospheric and chromospheric indicators,...

Summary Elongated embryos provide a unique source of information about trophoblastic differentiation, gene expression and maternal-embryonic interactions; however they are difficult costly to obtain, especially elongated cloned embryos. One alternative is their production in heterologous temporary recipients such as sheep goats. We aimed produce bovine using transfer recipients. Day-7 cattle blastocysts were transferred the uteri ewes goats recovered structures at day 17. evaluated...

Eclipsing time variations in post-common-envelope binaries were proposed to be due the time-varying component of stellar gravitational quadrupole moment. This is suggested produced by changes structure an internal redistribution angular momentum and effect centrifugal force. We examined this hypothesis present 3D simulations compressible magnetohydrodynamics performed with P ENCIL C ODE . modeled dynamo for a solar-mass star velocities 20 30 times solar. included varied strength force...

Equine endometrial and adipose mesenchymal stem cells (eMSCs aMSCs, respectively) were isolated from the same donors of thoroughbred mares. The displayed characteristic features MSCs, including trilineage mesodermal also neurogenic differentiation. We evaluated influence cellular origin on their transcriptome profile. Cellular RNA was sequenced extracellular vesicles (EVs) obtained conditioned medium cultured in depleted EVs, microRNA (miRNA) cargo analyzed by sequencing. Differential...

The possibility to detect circumbinary planets and study stellar magnetic fields through eclipsing time variations (ETVs) in binary stars has sparked an increase of interest this area research. We revisit the connection between gravitational quadrupole moment $Q_{xx}$ compare different dynamo-generated ETV models with our simulations. present magnetohydrodynamical simulations solar mass rotation periods 8.3, 1.2, 0.8 days perform a detailed analysis using spherical harmonic decomposition....

The study tested the hypothesis that a single administration of hCG supports LH-dependent phase terminal follicular development in synchronized sheep during anestrus, using eCG as functional reference. Using clinical approach, four experiments were designed to achieve following: (1) Identify inhibitory influence anestrus on reproduction efficiency; (2) Assess potential keep blood concentrations after dose; (3) Characterize effect different doses reproductive markers; (4) To compare ability...

Mare endometrosis is a major reproductive problem associated with low fertility and characterized by persistent inflammation, TGFβ-1 signaling, consequently, extracellular matrix deposition, which compromises endometrial glands. Mesenchymal stem cell-based products (MSCs), such as vesicles (EVs), have gained attention due to the regulatory effects exerted their miRNA cargo. Here, we evaluated impact of preconditioning equine adipose mesenchymal cells for short or long periods on...

Reproduction, Fertility and Development is an international journal publishing original research , review comment in the fields of reproduction developmental biology humans, domestic animals wildlife

Early-type stars have convective cores due to a steep temperature gradient produced by the CNO cycle. These can host dynamos, and generated magnetic fields be relevant explain magnetism observed in Ap/Bp stars. Our main objective is characterise core dynamos differential rotation, do first quantitative analysis of relation between activity cycle rotation period. We use numerical 3D star-in-a-box simulations $2.2~M_\odot$ A-type star with roughly $20\%$ stellar radius surrounded radiative...

Eclipsing time variations (ETVs) in post-common-envelope binaries (PCEBs) were proposed to be due the time-varying component of stellar gravitational quadrupole moment. This is suggested produced by changes structure an internal redistribution angular momentum and effect centrifugal force. We examined this hypothesis present 3D simulations compressible magnetohydrodynamics (MHD) performed with {\sc Pencil Code}. modeled dynamo for a solar-mass star velocities 20 30 times solar. included...

M dwarfs are low-mass main-sequence stars, the most numerous type of stars in solar neighbourhood, which known to have significant magnetic activity. The aim this work is explore dynamo solutions and fields fully convective with varying Prandtl numbers ${\rm Pr_M}$, a rotation period (${\rm P_{rot}}$) 43 days. Pr_M}$ play an important role action; dynamos for low-$\rm Pr_M$ large-$\rm very different properties. We performed three-dimensional magnetohydrodynamical (MHD) numerical simulations...