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Showing papers in "Theriogenology in 2021"


Journal ArticleDOI
TL;DR: Silver-carbon NPs could be used as an alternative antibiotic agent for bull semen extender without a significant cytotoxic effect on the sperm during cold storage, however, further investigations for their effects on embryo production and female genitalia are still required.

31 citations


Journal ArticleDOI
TL;DR: Art and aART greatly depend on and benefit from the rapidly evolving cryopreservation techniques and biobanking not only of genetic, but also of viable cellular materials suitable for the generation of induced pluripotent stem cells (iPSC).

23 citations


Journal ArticleDOI
TL;DR: In this paper, the authors used porcine oocyte as a model to explore how Ax improves the oocyte potential during in-vitro maturation (IVM), and also investigated the cytoprotective effects of Ax on the vitrified oocytes.

20 citations


Journal ArticleDOI
TL;DR: A number of caveats relating to the use of color Doppler ultrasonography for the assessment of TBP in domestic animals collectively appear to constrain its routine, on-farm application for breeding soundness assessments, at least at the present.

19 citations


Journal ArticleDOI
TL;DR: When used judiciously, uterotonics are a valuable tool to shorten farrowing duration of hyperprolific sows, however, the treatment is not exempt of deleterious effects for piglets and sows.

18 citations


Journal ArticleDOI
TL;DR: A novel insight is provided to the role of miRs in follicle development by identifying a miR target network that is putatively engaged in remodeling of the extracellular matrix during ovarian follicles development in chickens.

16 citations


Journal ArticleDOI
TL;DR: It is demonstrated that fast-developing embryos present a 'quiet' metabolic pattern on Day 2 and Day 4 of development, compared to on-time embryos, the first collective use of confocal and hyperspectral imaging in cleavage-stage bovine embryos in the absence of fluorescent tags.

16 citations


Journal ArticleDOI
TL;DR: The findings suggest that miR-126-5p was possibly trafficked between sEVs and sperm and provide new insights on the mechanism by which sperm acquire miRNAs in the last stages of spermatogenesis and sperm maturation in cattle.

16 citations


Journal ArticleDOI
TL;DR: In this paper, the effects of copper (II) chloride dihydrate (CuCl2·2H2O) on porcine oocytes during in vitro maturation (IVM) and subsequent embryonic development following parthenogenetic activation (PA).

15 citations


Journal ArticleDOI
TL;DR: It is shown for the first time that in the horse, as in other species, intracellular reactive oxygen species are increased by the process of vitrification and melatonin was useful in reducing mitochondrial-related ROS and improving ICSI embryo development, although the lower pregnancy rate in presence of melatonin should be further analyzed in future studies.

15 citations


Journal ArticleDOI
TL;DR: Identification of risk factors for RP with an interaction analysis can help farm managers to employ the best strategies to reduce the occurrence of this reproductive disorder in Iranian dairy herds.

Journal ArticleDOI
TL;DR: In this article, the effects of melatonin supplementation in maturation media on in vitro maturation, fertilization, and pre-plantation embryo development of dromedary camel oocytes were evaluated.

Journal ArticleDOI
TL;DR: Flaxseed oil supplementation improved the semen quality parameters and fertility of boars in sub-tropical climate by improving the antioxidant capacity and altering the fatty acid composition of seminal plasma.

Journal ArticleDOI
TL;DR: In this article, the effect of exogenous glutathione (GSH) supplementation on the in vitro maturation of bovine/porcine oocytes has been investigated, and the results showed that exogenous GSH not only enhanced the maturation rates of the Grade B and Grade C groups but also promoted cortical granules (CGs) dynamics and ASTL distribution.

Journal ArticleDOI
TL;DR: In this article, the effect and molecular mechanism of INHBA on proliferation, apoptosis and hormone synthesis in sheep granulosa cells (GCs) using in vitro transfection was investigated.

Journal ArticleDOI
TL;DR: In this article, the effect of Melatonin (MT) on the protection of the blood-testicular barrier (BTB) was investigated in newborn calf Sertoli cells.

Journal ArticleDOI
TL;DR: In this paper, the ovarian, uterine, and luteal hemodynamic variations using Doppler between pregnant and non-pregnant buffalos in relation to their anatomical and histological basics during the first 31 days after natural mating were determined.

Journal ArticleDOI
TL;DR: It is suggested that the developmental competence of prepubertal oocytes can be improved by supplementing IVM medium with relevant agents like sericin and cytokines.

Journal ArticleDOI
TL;DR: While mucus production and mucus viscosity was affected by breed, these changes are not consistent with the known differences between ewe breeds in their pregnancy rates following cervical AI with frozen-thawed semen.

Journal ArticleDOI
TL;DR: In this paper, the authors used RNA sequencing to identify additional genes by which the circadian clock regulates testosterone synthesis in mammals and found that the Apo genes play an important role in regulating testosterone synthesis via other genes.

Journal ArticleDOI
TL;DR: Detailed analysis for lncRNAs and their target genes may enhance the understanding of the molecular mechanisms underlying the process of sperm maturation in CY and may provide important resources for further research.

Journal ArticleDOI
TL;DR: In this paper, the authors used real-time PCR to examine the expression levels of Rad51/DMC1 mRNA in the cattle, yak and cattle-yak testis while western blotting, immunofluorescence and immunohistochemistry were used to assess the protein expression and localization of rad51 and DMC1 in the testicular tissue sections.

Journal ArticleDOI
TL;DR: A comprehensive transcriptomic view on TGF-β1 regulation of cell states in porcine GCs is provided and potential therapeutic RNA molecules for inhibiting and rescuing female infertility are identified.

Journal ArticleDOI
TL;DR: In this article, Sertoli-derived exosomes were used as powerful paracrine mediators in spermatogonial stem cells (SSCs) subjected to EMF and its underlying mechanisms.

Journal ArticleDOI
TL;DR: Long-term melatonin administration accelerated testicular recovery after heat stress by enhancing the phagocytotic activity of Sertoli cells and the regeneration of spermatogenic cells, suggesting that melatonin is a potential therapeutic for heat stress-induced male infertility.

Journal ArticleDOI
TL;DR: In this paper, the authors explored polymorphisms of the Cry2 gene and their associations with litter size at different parity in Australian White (AuW) ewes and found that the P1-Del-6-bp was significantly correlated with litter sizes at third parity (P = 0.010).

Journal ArticleDOI
TL;DR: Data support the use of TE biopsies for PGT-A in embryos undergoing genomic evaluation in cattle breeding and report chromosome-specific errors and a high degree of variability in the incidence of aneuploidy between donors, suggesting a genetic contribution that merits further investigation.

Journal ArticleDOI
TL;DR: In this article, the effects and potential mechanisms of FB1 on mammalian oocytes during in-vitro maturation were explored using porcine oocyte complexes (COCs) as models.

Journal ArticleDOI
TL;DR: Chemerin appears to be a modulator of ovarian steroidogenesis in pigs, whereas its varied effects on the secretion of steroid hormones may be due to the heterogeneity of factors regulating ovarian functions, possible interactions between these factors, and specific processes related to the ovarian physiology during different phases of the estrous cycle/pregnancy.

Journal ArticleDOI
TL;DR: In this paper, the effects of melatonin on the whole processes of sperm cryopreservation, oocyte maturation, and embryonic development were studied, and the results demonstrated that melatonin at 10−3 m concentration significantly improved progressive sperm viability, plasma membrane integrity, mitochondrial membrane integrity and acrosome integrity; however, there were also individual differences between bulls, depending on the age of different individuals.