Background And Aim: To enhance the reproductive potential and increase productivity and population of cows, spermatozoa sex-sorting technology is required. This study aimed to examine the effect of sexing sperm, separated using a bovine serum albumin (BSA) column with varying incubation durations and centrifugation methods, for successful artificial insemination.
Materials And Methods: Six Simmental bulls and 30 cows (n = 30) as the recipients were selected for this study at Balai Pembibitaan Hijauan Pakan Ternak Sembawa Indonesia. The study parameters included sperm motility, viability, plasma membrane integrity, and conception rate (CR). The experiment was divided into three protocols to find out differences in some parameters: (1) BSA incubation time effect (P) with P1 (40 min), P2 (50 min), and P3 (60 min); (2) freezing time effect with before freezing and after-thawing treatments; and (3) CR determined by measuring the proportion of pregnant cows following insemination with non-sexed, X-bearing, and Y-bearing sperms without centrifugation (n = 15) (A0, A1, and A2) and with centrifugation (n = 15) (B0, B1, and B2) in the acquired data, which were counted using the Statistical Package for the Social Sciences version 21 program. Analysis of variance was utilized to evaluate all treatments at various levels.
Results: The results demonstrated that centrifugation time influenced all sperm quality metrics for sperm containing X and Y (p < 0.05). The non-return rate (NRR) of non-sexed frozen semen, both centrifuged (A0) and not centrifuged (B0), was more significant than frozen semen produced by sexing X and Y spermatozoa. The NRR indicated a value of 80% based on the number of lactating cows.
Conclusion: Bovine serum albumin incubation and centrifugation protocols influenced and decreased all sperm quality indicators throughout the sexing procedure and could still be used as a sexing protocol. Furthermore, regarding NRR and service per conception, non-sexual treatment is superior to sexing treatment.
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http://dx.doi.org/10.14202/vetworld.2023.631-637 | DOI Listing |
Hum Gene Ther
January 2025
School of Bioengineering, East China University of Science and Technology, Shanghai, China.
Adeno-associated virus (AAV)-associated gene therapy has been increasingly promising, in light of the drugs progressed to clinical trials or approved for medications internationally. Therefore, scalable and efficient production of recombinant AAV is pivotal for advancing gene therapy. Traditional methods, such as the triple-plasmid transfection of human embryonic kidney 293 cells in suspension culture, have been widely employed but often hampered by low unit yield.
View Article and Find Full Text PDFVet Sci
December 2024
Veterinary Transfusion Research Laboratory (REVLab), Department of Veterinary Medicine and Animal Sciences, University of Milan, Via dell'Università 6, 26900 Lodi, Italy.
(SP) is a commensal and opportunistic pathogen of skin and mucosal surfaces, isolated from healthy dogs and from canine pyoderma cases. It has recently gained attention due to its increasing antibiotic resistance. Platelet-rich plasma (PRP) is a biological product, obtained through a blood centrifugation process, which has antibacterial properties evidenced by in vitro and in vivo studies conducted in both the human and veterinary field.
View Article and Find Full Text PDFJBRA Assist Reprod
December 2024
Örebro University Department of Obstetrics and Gynecology Faculty of Medicine and Health Örebro Sweden Department of Obstetrics and Gynecology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
Objective: Clinical validation of sperm selection device ZyMōt™ for standard IVF.
Methods: The pre-clinical validation of ZyMōt™ included several steps. First, split semen preparation compared density gradient centrifugation (DGC) to ZyMōt™ with primary outcome fraction and absolute number of progressive motile sperm.
Reprod Biomed Online
September 2024
University of Technology Sydney, Sydney, Australia; Institute for Biomedical Materials and Devices, University of Technology Sydney, Sydney, Australia. Electronic address:
Research Question: Can a biomimetic microfluidic sperm sorter isolate motile sperm while minimizing DNA damage in comparison with density gradient centrifugation (DGC)?
Design: This was a two-phase study of 61 men, consisting of a proof-of-concept study with 21 donated semen samples in a university research laboratory, followed by a diagnostic andrology study with 40 consenting patients who presented at a fertility clinic for semen diagnostics. Each sample was split to perform DGC and microfluidic sperm selection (one-step sperm selection with 15 min of incubation) side-by-side. Outcomes evaluated included concentration, progressive motility, and DNA fragmentation index (DFI) of raw semen, and sperm isolated using DGC and the microfluidic device.
Res Pract Thromb Haemost
November 2024
Department of Healthcare Surveillance and Bioethics, Section of Pharmacology, Catholic University School of Medicine, Rome, Italy.
Background: Serum thromboxane B (sTXB) is a validated biomarker of low-dose aspirin pharmacodynamics. In the original method, nonanticoagulated blood samples must be incubated at 37 °C immediately after withdrawal, centrifuged and serum supernatant should be frozen until assayed. Timely completion of all preanalytical steps may affect the feasibility and quality of sTXB measurements.
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