Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/0003-9861(76)90474-4 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Proteomics and metabolomics analyses of mechanism underlying bovine sperm cryoinjury.
BMC Genomics
January 2025
College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, 266109, China.
Background: The cryoinjury of semen during cryopreservation reduces sperm motility, constraining the application of artificial insemination (AI) in bovine reproduction. Some fertility markers, related to sperm motility before and after freezing have been identified. However, little is known about the biological mechanism through which freezing reduces sperm motility.
View Article and Find Full Text PDFEpididymal bull sperm selection by Percoll® density-gradient centrifugation prior to conventional or ultra-rapid freezing enhances post-thaw sperm quality.
Cryobiology
January 2025
Laboratorio de Biotecnología de la Reproducción Animal, Facultad de Ciencias Agropecuarias, Universidad de Cuenca, EC010205, Cuenca, Ecuador. Electronic address:
This study evaluated the effectiveness of Percoll® density gradient centrifugation (Percoll-DGC) for selecting bull epididymal sperm prior to conventional slow (CS) or ultra-rapid (UR) freezing and its effects on sperm quality. Fifteen pooled samples from 30 epididymides (2 different samples/pool) of 15 bulls were split into two aliquots assigned to either CS or UR freezing. Samples were either selected using Percoll-DGC (40/80 %) or left non-selected (control), resulting in four pre-freezing treatments: Percoll-CS, Control-CS, Percoll-UR, and Control-UR.
View Article and Find Full Text PDFNPC2, a seminal plasma protein with membrane cholesterol-binding ability, influences the cryotolerance and functionality of spermatozoa from Chino Santandereano bulls.
Anim Reprod Sci
December 2024
Faculty of Veterinary Medicine, University Antonio Nariño, Popayán, Colombia. Electronic address:
Despite Latin America's rich biodiversity, active genetic material conservation programs are scarce. This study investigates potential freezability markers in both sperm and seminal plasma (SP) in Chino Santandereano, a Colombian Creole breed. Thirty ejaculates from ten Chino Santandereano bulls were cryopreserved and subsequently classified as of good (GFE) or poor (PFE) freezability according to their post-thaw total sperm motility (TMOT) and plasma membrane integrity (PMI).
View Article and Find Full Text PDFEffect of age-associated oxidative stress on sperm viability, acrosomal integrity and sperm apoptosis and DNA fragmentation in Sahiwal breeding bulls.
Vet Res Commun
January 2025
ARGO, ICAR- National Dairy Research Institute, Deemed University, Karnal, India.
Sperm motility is the prime functional attribute for semen quality and fertility of the bull. However, the bull's age directly affects the semen quality, and the bull's fertility and productive life decline with age. Even though research on age has been conducted in the past, it is still unclear how old a bull should be maintained at artificial insemination centers.
View Article and Find Full Text PDFGenetic parameters and genome-wide association studies including the X chromosome for various reproduction and semen quality traits in Nellore cattle.
BMC Genomics
January 2025
Department of Animal Sciences, Purdue University, 270 S. Russell Street, West Lafayette, IN, 47907, USA.
Background: The profitability of the beef industry is directly influenced by the fertility rate and reproductive performance of both males and females, which can be improved through selective breeding. When performing genomic analyses, genetic markers located on the X chromosome have been commonly ignored despite the X chromosome being one of the largest chromosomes in the cattle genome. Therefore, the primary objectives of this study were to: (1) estimate variance components and genetic parameters for eighteen male and five female fertility and reproductive traits in Nellore cattle including X chromosome markers in the analyses; and (2) perform genome-wide association studies and functional genomic analyses to better understand the genetic background of male and female fertility and reproductive performance traits in Nellore cattle.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!