Results 91 to 100 of about 29,382 (227)

Use of Pentoxifylline to Improve Seminal Parameters in Dogs

open access: yesVeterinary Medicine and Science, Volume 12, Issue 3, May 2026.
A single oral dose of pentoxifylline (10 mg/kg) administered 40 min before ejaculation significantly improved sperm concentration and progressive motility in dogs. The effect was most pronounced in oligospermic subjects, supporting pentoxifylline as a rapid, well‐tolerated adjunct therapy for canine subfertility .
Vincenzo Cicirelli   +6 more
wiley   +1 more source

Sex Determination of X and Y Separated Fresh Bull Sperm Using SRY Gene Copy Number Analysis

open access: yesVeterinary Medicine and Science, Volume 12, Issue 3, May 2026.
Resiquimod treatment and swim‐up significantly enriched Y‐bearing bull sperm in the separated fraction, confirmed by higher SRY copy numbers and increased male embryo production. ABSTRACT Background and Objective The present study employed absolute quantitative PCR to determine the sex of sperm fractions after subjecting fresh bull semen to motility ...
Ali Kadivar   +7 more
wiley   +1 more source

The embryological characteristics and clinical outcomes of oocytes with indented zona pellucida

open access: yesJournal of Obstetrics and Gynaecology
Background Our study aimed to investigate the embryological characteristics and clinical outcomes of oocytes with indented zona pellucida (iZP).Methods Cases with all oocytes containing iZP were compared with subjects whose oocytes presented ...
Jie Lin   +6 more
doaj   +1 more source

Sensitive and robust gene expression changes in fish exposed to estrogen – a microarray approach

open access: yesBMC Genomics, 2007
Background Vitellogenin is a well established biomarker for estrogenic exposure in fish. However, effects on gonadal differentiation at concentrations of estrogen not sufficient to give rise to a measurable vitellogenin response suggest that more ...
Nerman Olle   +4 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

Generation of Cloned Sheep Lacking Galactose‐α1,3‐Galactose and N‐Glycolylneuraminic Acid Antigens

open access: yesXenotransplantation, Volume 33, Issue 3, May/June 2026.
ABSTRACT Livestock have long been regarded as a potential source of donor organs to alleviate the global organ shortage for transplantation. Sheep have a similar anatomy to humans, providing the standard model for demonstrating biocompatibility and performance of biological heart valves to obtain regulatory approval for their use in transplantation ...
Sarah J. Appleby   +9 more
wiley   +1 more source

Inhibition of ovine in vitro fertilization by anti-Prt antibody: hypothetical model for Prt/ZP interaction [PDF]

open access: yes, 2013
BACKGROUND: The impact of prion proteins in the rules that dictate biological reproduction is still poorly understood. Likewise, the role of prnt gene, encoding the prion-like protein testis specific (Prt), in ram reproductive physiology remains largely ...
Aldino Viegas   +15 more
core   +1 more source

Effect of supplementation of vitrification solution on post-thaw survivability rate of porcine follicular oocytes

open access: yesIndian Journal of Animal Sciences, 2019
Oocytes (510) with two or more cumulus cell layers adhered to zona pellucida obtained by aspiration from follicles (2–8 mm dia) of 127 abattoir porcine ovaries were utilized to study the effect of supplementation of 0.5 M sucrose (Suc), 50 mg/ml ...
KRISHNA KALITA   +6 more
doaj   +1 more source

Pregnancy [PDF]

open access: yes, 2009
Histology blog entry for February 11, 2009 about ...
Krause, William J., II, 1942-
core   +1 more source

Neofunctionalization of zona pellucida proteins enhances freeze-prevention in the eggs of Antarctic notothenioids

open access: yesNature Communications, 2016
Despite subzero temperature of their surroundings, eggs of Antarctic notothenioid fishes do not freeze. This study shows the expansion of genes related to freezing temperature in notothenioid which also acquired of ice melting-promoting zona pellucida ...
Lixue Cao   +12 more
doaj   +1 more source

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