Results 51 to 60 of about 5,166 (178)

COITAL BLOCK TO SUPEROVULATION IN THE HAMSTER [PDF]

open access: yesReproduction, 1963
Summary. Hamsters injected with 60 i.u. pregnant mares' serum (pms) on the morning of metoestrus (Day 1 of oestrous cycle) will ovulate sixty to seventy ova if they are isolated from males. However, if similarly treated females are caged with males on Day 2 or 3, coitus takes place and the inactive corpora lutea of the oestrous cycle ...
openaire   +2 more sources

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

open access: yesFEBS Open Bio, Volume 16, Issue 6, Page 1102-1114, June 2026.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li   +8 more
wiley   +1 more source

Relationship between heart girth, serum progesterone and superovulation response of donor Holstein cows

open access: yesAsian Pacific Journal of Reproduction, 2019
Objective: To determine effects of variations of heart girth, volume trait on embryo quality grade, and to explore the relationship between heart girth and circulating progesterone and correlations of circulating progesterone with embryo quality grade in
Abdel-Tawab A. Y. Khalil   +2 more
doaj   +1 more source

Recent advances in the superovulation in cattle [PDF]

open access: yesReproduction Nutrition Development, 2002
The variability in the superovulatory response continues to be one of the most frustrating problems with embryo transfer in cattle. The removal of LH from pituitary extracts has tended to reduce the variability in response, and several studies involving the use of the purified porcine pituitary extract. Folltropin-V are reviewed.
Mapletoft, Reuben   +2 more
openaire   +2 more sources

Hyperaldosteronism in Mice Lacking the Distal Polybasic Tract of the γ‐Subunit of the Epithelial Sodium Channel During Sodium Restriction

open access: yesActa Physiologica, Volume 242, Issue 6, June 2026.
ABSTRACT Aims The epithelial sodium channel ENaC consists of the subunits α, β, and γ and is activated at an individual channel level by proteolytic processing. Murine γENaC contains a distal polybasic tract 186RKRK mediating proteolytic ENaC activation by serine proteases in vitro.
Daniel Essigke   +8 more
wiley   +1 more source

The Effect of Glyphosate on Ovarian Tissue and in Vitro Maturation in Superovulated Mice [PDF]

open access: yesMajallah-i dānishgāh-i ̒ulūm-i pizishkī-i Arāk
Introduction: Glyphosate is the most popular broad-spectrum herbicide globally due to the growing demand for glyphosate-resistant crops. Glyphosate exhibits harmful properties, including cytotoxicity, neurotoxicity, and reproductive toxicity.
Atefeh Khaki   +2 more
doaj  

Recipient maternal genotypes improved the litter size components of a paternal line involved in a MOET programme in rabbits

open access: yesItalian Journal of Animal Science, 2022
An essential factor in the success of multiple ovulation and embryo transfer programmes (MOET) in any species is the selection of the recipient females. In rabbit there is a notable lack of studies on the effects of recipient genotype on postnatal growth.
Mohamed Ragab   +3 more
doaj   +1 more source

Equine models in translational medicine: A comparative approach to human health

open access: yesAnimal Models and Experimental Medicine, Volume 9, Issue 5, Page 898-913, May 2026.
This diagram summarizes and contrasts rodent and equine models, outlining their strengths, limitations, and applications. Horses offer naturally occurring diseases, genetic and physiological similarities to humans, and suitability for longitudinal and clinical‐scale studies.
Shayan Boozarjomehri Amnieh   +1 more
wiley   +1 more source

Superovulation and expression of follicle-stimulating hormone receptor in young rabbit females

open access: yesWorld Rabbit Science, 2017
To optimise the use of juvenile in vitro embryo transfer technologies in young rabbit females, superovulation was performed in New Zealand White young rabbit females at different ages and the expression mode of follicle-stimulating hormone receptor (FSHR)
Hao Zhang   +5 more
doaj   +1 more source

Handmade Biopsy for Genotyping of In Vitro‐Produced Bovine Embryos

open access: yesAnatomia, Histologia, Embryologia, Volume 55, Issue 3, May 2026.
ABSTRACT Blastocyst biopsy allows genomic selection of pre‐implantation bovine embryos, reducing generation interval and enhancing the genetic gain. We aimed to evaluate the suitability of a simple biopsy procedure, performed by hands, using a splitting microblade and a stereoscope, on in vitro‐produced embryos. Crossbred Bos taurus x B.
Luiz Sergio Almeida Camargo   +8 more
wiley   +1 more source

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