نتایج جستجو برای: freezability

تعداد نتایج: 137  

Journal: :Reproductive biology 2012
Muhammad S Ansari Bushra A Rakha Syed M H Andrabi Nemat Ullah Razia Iqbal William V Holt Shamim Akhter

In this study we evaluated the effects of semen extender supplementation with different concentrations of glutathione (GSH) on buffalo (Bubalus bubalis) bull sperm motility, plasma membrane integrity, viability and DNA integrity as well as in vivo fertility. Semen from three Nili-Ravi buffalo bulls was collected, and qualified semen ejaculates (n=18) were split into five aliquots for dilution (...

2009
Hideaki Yamashiro Kaori Narita Satoshi Sugimura Atsushi Sugawara Yumi Hoshino Masahiro Sakurai Masaki Yokoo

Problem statement: Two experiments were conducted to determine the effect of the prostatic fluid from the first and third fractions of the ejaculates on the freezability of poodle dog sperm. Approach: The ejaculates from 2 trained poodle dogs were collected. Effect of prostatic fluid from the first and third fractions of ejaculates on cryosurvival of dog sperm was examined. SDS-PAGE analyses we...

2009
M. Bhakat T. K. Mohanty A. K. Gupta

Artificial insemination is nowadays a widely used technique for the enhancement of genetic potential of livestock species. But still the maximum benefit of this tool cannot be extracted as there are certain inherent problems of semen quality like poor semen quality and poor freezability with crossbred and buffalo bulls. Correspondingly, there is a genetic and economic loss owing to disposal of ...

2015
Sunita Behera Hiron M. Harshan K. Lekshmi Bhai K. N. Aravinda Ghosh

AIM Sperm membrane cholesterol influences cryodamage during cryopreservation. The present study was carried out to evaluate the effect of varying cholesterol levels in Tris based extenders on the freezability of sexually healthy Malabari buck semen. MATERIALS AND METHODS A total of 48 ejaculates from two adults healthy sexually healthy Malabari bucks were utilized for the study. The collected...

Journal: :Poultry science 2006
J A Long

The value of the ability to cryopreserve and store germplasm has long been recognized for indefinite preservation of genetic material, especially for at-risk populations. In contrast to domestic livestock species, cryogenic storage of poultry semen is not reliable enough for germplasm preservation. The relatively low fertilizing ability of frozen/thawed poultry sperm most likely results from ph...

2016
Marc Yeste

Pig breeding is mainly conducted through Artificial Insemination (AI) in Western and developing countries. Apart from requiring specific catheters and trained staff, preserving boar semen in proper conditions is needed to ensure high reproductive performances. Although, at present, boar sperm may be preserved in liquid (15-17oC) or frozen states, more than 95% of AIs are conducted using liquid ...

Journal: :Cryobiology 2013
P Imrat P Suthanmapinanth K Saikhun S Mahasawangkul E Sostaric P Sombutputorn S Jansittiwate N Thongtip A Pinyopummin B Colenbrander W V Holt T A E Stout

Semen cryopreservation and artificial insemination (AI) are potentially valuable methods for supporting the breeding management of endangered species like the Asian elephant. Cryopreservation of Asian elephant semen has however proven problematic with respect to maintenance of both adequate semen quality and fertility post-thaw. In this study, nine ejaculates from three adult bulls were used to...

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