7 results for “Acrosome”

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Research ArticleOpen accessEvery word in the titleInfluence of Different Freezing Curves on the Acrosome Integrity of Male Goat Sperm CellsSofia Alexandra Fagundes Lopes, Henrique José Duarte Rosa, António Chaveiro, Fernando Moreira da SilvaThe aim of the present study was to evaluate the effect of three different freezing curves on male goat’s sperm viability and acrosome integrity. Semen was collected on three adult male goats in February (Azores, Portugal, latitude 38°39′N) using an artificial vagina and a female with induced heat. Three collection sessions were spaced of approximately 5 days. The study followed … …American Journal of Animal and Veterinary Sciences, Vol. 16, Issue 1 · 19 Feb 2021 · 6,616 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsOptimizing Boar Epididymal Sperm Preservation: Comparative Analysis of Slicing Float-Up vs. Flushing and BTS vs. Andromed® Extenders on Sperm Motility and Morphometry TraitsMamonene Angelinah Thema, Ntuthuko Raphael Mkhize, Gerhard van der Horst et al.Epididymal sperm collection represents a valuable strategy for preserving genetics from deceased or castrated boars of superior breeding value. The two primary collection methods-slicing float-up (high sperm yield) and flushing (low blood contamination risk)-differ in sperm recovery efficiency, while semen extenders provide cryoprotective nutrients that protect against cold shock during preservation. This study compared the effects of slicing float-up versus … …American Journal of Animal and Veterinary Sciences, Vol. 20, Issue 4 · 14 Mar 2026 · 1,794 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsImproving the Technology for Assessing the Semen of Beige Karakul SheepAigerim Turekyzy Bigarayeva, Nuradin Alibayev, Arkadiy Kanurovich Natyrov et al.The article presents the research results on the effective use of seed products from breeding rams in reproduction for the conservation and targeted propagation of genetic resources of Karakul sheep of rare beige color, which are on the verge of extinction. Selected freshly obtained ejaculates from 6 beige rams of the Karakul breed in the amount of 32 samples, meeting … …OnLine Journal of Biological Sciences, Vol. 25, Issue 1 · 17 Feb 2025 · 4,501 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsStudy the Efficacy of Different Concentrations of Coconut Water on Boar Semen Following Equilibration at 18°C for Different HoursMduduzi M. Tshabalala, Masindi L. Mphaphathi, Thivhilaheli R. Netshirovha et al.A rich natural resourcesuch as Coconut Water (CCW) features high concentrations of antioxidants,nutrients, amino acids, sugars, and electrolytes. These herbal extractinfusions are used in semen extenders to preserve animal sperm. In addition,CCW is important for in vitro productionof embryos. The purpose of this study was to investigate the use of coconutwater as an alternative bulking agent for boar semen after … …American Journal of Animal and Veterinary Sciences, Vol. 17, Issue 4 · 23 Nov 2022 · 7,040 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEffects of Vitamin E on Stress Resorption, Lipid Profile and Reproductive Performance of Sokoto Red GoatsKehinde Matthias OKUKPE, Ling Shing Wong, Geetha Subramaniam et al.Vitamin E (α-tocopherol) plays a critical role in animal nutrition as an antioxidant, contributing to anti-inflammatory responses, immune function, and gene expression regulation. This study aimed to determine the optimal dietary level of vitamin E to alleviate the effects of environmental stress in Sokoto Red Goats transported from their native dry savannah belt to the humid derived savanna belt of … …OnLine Journal of Biological Sciences, Vol. 26, Issue 1 · 20 Mar 2026 · 1,509 accessesView PDF Cite

Research ArticleOpen accessIn the abstractStudy the Effect of Extracted Low-Density Lipoprotein from Egg Yolk on the Cryopreservation of Nguni Bull SemenMduduzi M. Tshabalala, Masindi Lottus Mphaphathi, Khathutshedzo A. Nephawe et al.The mechanism on how Egg Yolk (EY) helps sperm to survive the low temperature outside the animal body during cryopreservation and thawing process is not yet known. It is usually believed that the Low-Density Lipoprotein (LDL) is the major component that provides protection. The present study was undertaken to assess the cryo-protective effect of different concentrations (6, 8, 10 and … …American Journal of Animal and Veterinary Sciences, Vol. 16, Issue 3 · 13 Sep 2021 · 6,915 accessesView PDF Cite

Research ArticleOpen accessIn the abstractOsmolarity of Coconut Water (Cocos nucifera) Based Diluents and their Effect Over Viability of Frozen Boar SemenBottini Luzardo, M. Centurion Castro, F. Alfaro Gamboa et al.Problem statement: Boar sperm cells are sensitive to the freezing process, which compromises viability of frozen-thawed sperm. In a constant search for minimizing or suppressing sperm cell damage caused by the temperature and osmolarity changes during the freezing process, crioprotective and antioxidant substances have been added to the freezing media, such as coconut water, in order to increase the viability … …American Journal of Animal and Veterinary Sciences, Vol. 5, Issue 3 · 30 Sep 2010 · 8,115 accessesView PDF Cite