Results 41 to 50 of about 159,047 (161)
Wildlife Biology, EarlyView.After decades of dramatic reductions in their populations, Italian wolves have begun recolonizing parts of their historic range. This growth in populations can lead to potential conflicts with human activities, which remain the main cause of wolf mortality.
Ilaria Troisio +8 more
wiley +1 more source
Reproductive management in pigs: emphasis on the different roles of the boar and on optimal insemination management [PDF]
, 2009 Boars have different roles in the reproductive management in pigs. Boar contact can stimulate follicle development and thereby induce oestrus, both in gilts and sows.
Kemp, B. +3 more
core
Biomolecules, 2019 Post-thawed sperm quality parameters vary across different species after cryopreservation. To date, the molecular mechanism of sperm cryoinjury, freeze-tolerance and other influential factors are largely unknown. In this study, significantly dysregulated
Ming-Xia Ran +14 more
doaj +1 more source
Andrology, EarlyView.ABSTRACT Background Challenges in establishing clinical conventional in vitro fertilization (IVF) in horses include variation in sperm and oocyte quality, which can be affected by mare age. Extended preincubation of stallion spermatozoa has resulted in successful IVF.
Raul A. Gonzalez‐Castro +6 more
wiley +1 more source
, 2018 Raw and collated data. Table S1. Differential expression of mRNAs between fresh and capacitated boar sperm. Table S2. Differential expression of miRNAs between fresh and capacitated boar sperm. Table S3–1.
Ming-Xia Ran (5845100) +10 more
core +1 more source
Aquaglyceroporins but not orthodox aquaporins are involved in the cryotolerance of pig spermatozoa
Journal of Animal Science and Biotechnology, 2019 Background Aquaporins (AQPs) are a family of transmembrane water channels that includes orthodox AQPs, aquaglyceroporins (GLPs) and superAQPs. AQP3, AQP7, AQP9 and AQP11 have been identified in boar sperm, and they are crucial for sperm maturation and ...
Ariadna Delgado-Bermúdez +8 more
doaj +1 more source
Andrology, EarlyView.ABSTRACT Background Mammalian sperm need to undergo hyperactivation, capacitation, and acrosome reaction to achieve fertilization competence. However, the female reproductive tract presents contrasting metabolic environments. The uterus is glucose‐rich, and the oviduct is lactate‐rich and glucose‐limited.
Md Faizul Hossain Miraz +5 more
wiley +1 more source
BMC Genomics, 2018 Background Capacitation, a prerequisite for oocyte fertilization, is a complex process involving series of structural and functional changes in sperms such as membrane modifications, modulation of enzyme activities, and protein phosphorylation.
Yuan Li +10 more
doaj +1 more source
Palm Kernel Meal Protein Hydrolysates Enhance Post-Thawed Boar Sperm Quality
Animals, 2023 Boar sperm is sensitive to particular conditions during cryopreservation, resulting in an extreme reduction in fertilizing ability due to damage to the sperm membranes. PKMPH contains bioactive peptides that have antioxidant and antimicrobial activities.
Vassakorn Khophloiklang +3 more
doaj +1 more source
Andrology, EarlyView.ABSTRACT Background Sperm cryopreservation causes cryodamage, but the roles of posttranslational modifications (PTMs) and stress granules (SGs) in this process remain unclear. Objectives To investigate the molecular mechanism of cryodamage via the TRIM21–AKAP3 axis, PTMs, and SGs.
Yan Wang +9 more
wiley +1 more source