Results 51 to 60 of about 24,732 (236)
Analysis of ejaculate parameters and sperm morphology in roosters of initial laying strains
Czech Journal of Animal ScienceThe aim of this study was to evaluate the influence of laying hybrid lines of domestic fowl (Gallus gallus f. domestica) and their age on ejaculate parameters in roosters.
Ladislav Máchal +6 more
doaj +1 more source
The Anatomical Record, EarlyView.Abstract Stenopodidea represents one of the basal lineages within Pleocyemata, yet the male reproductive system (MRS) of this group remains poorly understood, with limited information available regarding its morphology and function. This study provides the first detailed description of the MRS in four stenopodidean shrimp species from two families ...
Caio Santos Nogueira +2 more
wiley +1 more source
Ultrastructure of the tubificid acrosome (Annelida, Oligochaeta)
, 1978 The later morphogenesis of the acrosome of Limnodriloides winckelmanni and Rhyacodrilus arthingtonae is compared with that in Enchytraeus and in earthworms.
Bennett J.D., Jamieson B.G.M., Daddow L.
core +1 more source
Oocyte–cumulus cell interaction: a key factor in early embryo development
Biological Reviews, EarlyView.ABSTRACT The evaluation of oocyte competence is a fundamental step in achieving successful outcomes following assisted reproduction techniques (ART). At present, however, conventional oocyte maturation assessment is carried out by morphological observation, which is a subjective method that does not consider molecular features.
Marc Torres‐Garrido +2 more
wiley +1 more source
STUDIES OF LYSOPHOSPHOLIPIDS RELATED TO THE HAMSTER SPERM ACROSOME REACTION IN-VITRO [PDF]
, 1993 Phospholipase A2 and lysophospholipids have been implicated in the mammalian sperm acrosome reaction. In this study we further investigated the role of this enzyme and lysophospholipids on the acrosome reaction of hamster spermatozoa.
LLANOS, MN, RIFFO, MS, MORALES, P
core +2 more sources
Practical use of bioenergetic evaluation of sire-bulls with different quality of semen production
BIO Web of Conferences, 2021 For modern cattle industry, it is very important to evaluate bull-sires of different breeds by semen quality. The relevance of this problem arises in the context of development of artificial insemination technologies and biotechnology, the increasing ...
Samusenko Ludmila +3 more
doaj +1 more source
THE ACROSOME—LYSOSOME RELATIONSHIP [PDF]
Reproduction, 1975 A.R.C. Unit of Reproductive Physiology and Biochemistry, 307 Huntingdon Road, Cambridge CB3 0JQ (Received 21st November 1974) Using histochemical techniques Mancini et al. (1964) established that hyaluronidase, a lysosomal enzyme, is localized in the acrosomes of bull spermatozoa.
openaire +2 more sources
Food Safety and Health, EarlyView.Fenugreek and stevia extracts protect against dexamethasone‐induced testicular damage in male rats by enhancing antioxidant defenses, improving sperm quality, and restoring hormonal balance, highlighting their potential as natural therapeutics for preventing corticosteroid‐induced reproductive toxicity.
Mosab Gad +3 more
wiley +1 more source
Acrosome integrity and sperm DNA fragmentation.
, 2019 (A) Acrosome evaluation was detected using FITC-PSA staining; acrosome intact and acrosome-reacted are shown. (B) Box-and-whisker plots for sperm with acrosome intact from the three experimental groups show the significant differences among all groups (C)
Rouhollah Fathi (7349051) +6 more
core +1 more source
Correlation of sperm acrosome integrity rate with semen parameters and in vitro fertilization outcomes [PDF]
Journal of Men's HealthBackground: This study aimed to evaluate the application value of sperm acrosome integrity rate in male fertility assessment, its impact on in vitro fertilization (IVF) outcomes, and its predictive value for low IVF fertilization rates.
Lin Yu +6 more
doaj +1 more source