نتایج جستجو برای: oocyte maturity

تعداد نتایج: 42467  

Journal: :Frontiers in Environmental Science 2021

Squaliobarbus curriculus , commonly known as red-eye fish, is widely distributed in East Asia. It one of the important aquatic germplasm resource and economic species Pearl River. To give suggestions for better protection management, we investigated its life history conducted elasticity analyses. Samples ( n = 451) were collected between 2016 2017 from western River estuary. There no significan...

Journal: :Revista Mexicana De Biodiversidad 2021

White grunt ( Haemulon plumierii ) has gained relevance as an alternative resource to fisheries off the northern coast of Yucatan Peninsula, however, knowledge its biology in region is scarce. Thus, order explore the reproductive H. , a total 355 specimens were caught with hand line and bait, from September 2015 November 2016 conduct histological analysis gonads. The sample was represented by 2...

Journal: :Human reproduction 1998
L Rienzi F Ubaldi R Anniballo G Cerulo E Greco

The aim of this study was to examine the relationship between different preincubation periods of oocytes and the outcome of intracytoplasmic sperm injection (ICSI). We analysed retrospectively 95 ICSI treatment cycles performed to alleviate severe male-factor infertility. Oocyte collection was performed approximately 36 h after human chorionic gonadotrophin administration. The cumulus-corona-oo...

2010
L. F. Campos-Chillon T. K. Suh J. L. Altermatt

Background: Intracytoplasmic sperm injection (ICSI) has become a useful technology to produce foals when availability of semen is limited or when in-vitro fertilization is desired, as is the need for subfertile mares. However, its application into clinical practice is challenging. The purpose of this review was to discuss some fundamental molecular aspects of oocyte maturation that should be co...

Journal: :Fishes 2022

Cold- and deep-water species such as Molva show low resilience to anthropogenic pressures, they become particularly vulnerable at the warm edges of their distribution. In this study, poorly documented Mediterranean ling (Molva macrophthalma) population from northwestern Sea was analysed. This area is considered a cul-de-sac in sea-warming hotspot, where M. macrophthalma shows health status expe...

Journal: :Journal of the Society for Gynecologic Investigation 2006
Alessio Paffoni Guido Ragni Andrea Doni Edgardo Somigliana Fabio Pasqualini Liliana Restelli Giorgio Pardi Alberto Mantovani Cecilia Garlanda

OBJECTIVE Pentraxin-3 (PTX3) is a long pentraxin that plays a key role in female fertility as a structural and essential constituent of the cumulus oophorus extracellular matrix. Despite considerable evidence supporting this role of PTX3 in mice, data in humans are scanty. The aim of the present study was (1) to evaluate follicular fluid concentrations of PTX3; (2) to test the hypothesis that l...

Journal: :Philippine journal of fisheries 2023

Reproductive biology is important in formulating management interventions for fish stocks. Limits on catch size are established based the identified at first sexual maturity of target species, which can be accurately determined through histological analysis gonads. The study investigated reproductive characteristics endangered Sardinella tawilis and analysis. Between 2017 2018, 312 samples with...

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