نتایج جستجو برای: Freezability

تعداد نتایج: 137  

Journal: :Reproduction in domestic animals = Zuchthygiene 2011
T J Safranski J J Ford G A Rohrer H D Guthrie

Little data are available in the literature regarding freezability of boar sperm or its relationship with other traits. Existing data suggest the trait would respond favourably to selection, and information is available from other species suggesting components that might have changed. Genetic parameters are estimated for boar sperm freezability including heritability and correlations with other...

2016
Leyland Fraser

In this project transcriptome analysis on highthroughput RNA-sequencing (RNA-Seq) data of boar spermatozoa will be utilized to identify novel genetic markers associated with semen freezability. Three boars each with poor and good semen freezability will be subjected to transcriptome studies on sperm RNA-seq data, and in combination with bioinformatics screening, will select candidate genes asso...

2014
José Luis Ros-Santaella Álvaro Efrén Domínguez-Rebolledo José Julián Garde

The factors affecting the inter-individual differences in sperm freezability is a major line of research in spermatology. Poor sperm freezability is mainly characterised by a low sperm velocity, which in turn is associated with low fertility rates in most animal species. Studies concerning the implications of sperm morphometry on freezability are quite limited, and most of them are based on spe...

2018
Mariola A Dietrich Andrzej Ciereszko

Our recent studies suggested that the freezability of carp semen is related to seminal plasma protein profiles. Here, we aimed to compare the spermatozoa proteomes of good (GF) and poor (PF) freezability semen of carp. To achieve this, we used two-dimensional difference in gel electrophoresis followed by MALDI-TOF/TOF mass spectrometry. The semen was classified as GF or PF based on sperm motili...

2015
A K S Sikarwar N. Ramachandran Ravi Ranjan Chetna Gangwar Jitendra Kumar Agrawal

Accepted: 21/07/2015 Abstract A total 196 ejaculates from 8 adult Sirohi bucks were utilized to find out the freezability of buck semen at different levels of two cryoprotectants. The ejaculates were extended to maintain sperms concentration approximately 100 million per dose (0.25 ml) containing TrisCitric acidFructose (TCF) with different concentrations of glycerol and DMSO viz. 4%, 6% and 8%...

Journal: :Cryobiology 2015
Xu-ping Jiang Shang-qian Wang Wei Wang Yang Xu Zhen Xu Jing-yuan Tang Hong-yong Sun Zeng-jun Wang Wei Zhang

Sperm cryopreservation is a method to preserve sperm samples for a long period. However, the fertility of sperm decreases markedly after freezing and thawing in a certain amount of samples. The aim of the present study was to find useful and reliable predictive biomarkers of the capacity to withstand the freeze-thawing process in human ejaculates. Previous researches have shown that enolase1 (E...

Journal: :علوم دامی ایران 0
افشین سیفی جمادی دانشجوی دکتری، گروه علوم دامی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج احمد زارع شحنه استاد، گروه علوم دامی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران حمید کهرام استادیار، گروه علوم دامی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج و استادیار مؤسسۀ تحقیقات واکسن و سرم سازی رازی، کرج ابوالفضل اکبری استادیار، مؤسسۀ تحقیقات واکسن و سرم سازی رازی محسن ضامن کارشناس علوم آزمایشگاهی، مؤسسۀ تحقیقات واکسن و سرم سازی رازی ابوالفضل واخیده کارشناس دامپزشکی، مؤسسۀ تحقیقات واکسن و سرم سازی رازی

four mature stallions were used to study the effect of enzymatic antioxidant catalase on freezability of turkmen stallion's sperm. collected semen from stallions were processed and pooled before being divided treatments (200×106  sperm/ml) and diluted with extenders supplemented with different levels of catalase [0 (control), 100 u/ml (cat100), 150u/ml (cat150) and 200u/ml (cat200)]. exten...

2016
Narendra Kumar B. Rai Showkat A. Bhat S. D. Kharche Chetna Gangwar S. K. Jindal Subhash Chandra

AIM The objective of the study was to determine the effect of the management system (intensive and semi-intensive) and season (autumn and winter) on semen freezability in Jakhrana bucks. MATERIALS AND METHODS A total of 24 Jakhrana bucks of same body weight and age (BW=30 kg, age=1 year) were randomly allotted into two groups, viz., Group I (intensive system, 12 bucks) and Group II (semi-inte...

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