نتایج جستجو برای: caprine spermatozoa

تعداد نتایج: 15991  

Journal: :Zygote 2002
Mike Katayama Takashi Miyano Masashi Miyake Seishiro Kato

Boar spermatozoa were prepared for intracytoplasmic sperm injection (ICSI) by two different treatments to facilitate sperm chromatin decondensation and improve fertilisation rates after ICSI in pigs: spermatozoa were either frozen and thawed without cryoprotectants, or treated with progesterone. Morphological changes of the sperm heads after the treatments were examined and then the activation ...

Journal: :The Journal of Cell Biology 1977
GL Nicolson N Usui R Yanagimachi H Yanagimachi Smith

MODIFICATIONS IN RABBIT SPERM PLASMA MEMBRANES DURING EPIDIDYMAL PASSAGE AND AFTER EJACULATION WERE INVESTIGATED BY USED OF THREE LECTINS: concanavalin A (Con A); Ricinus communis I (RCA(I)); and wheat germ agglutinin (WGA). During sperm passage from caput to cauda epididymis, agglutination by WGA drastically decreased, and agglutination by RCA(I) slightly decreased, although agglutination by C...

Journal: :Chalaza journal of animal husbandry 2022

Sexing and centrifugation of spermatozoa is one way to improve the quality spermatozoa. This study aimed obtain right time for sexing with Bovine Serum Albumin media on morphology X-Y in Simmental cattle. was carried out from October 2021 November at Laboratory Animal Reproduction Health Breeding Center Superior Livestock Forage, Sembawa. The design used this a completely randomized (CRD) 3 tre...

2007
J. C. DeMartini H. J. Olander

Disease is a major constraint in small ruminant production systems in lesser-developed countries throughout the world. Animal health projects have been an integral part of the Small Ruminant Collaborative Research Support Program (SR-CRSP) from its inception. At the onset, these projects were oriented toward herd health care and veterinary extension activities. Later, all the projects developed...

2017
Priti D. Vihol J. K. Raval

Caprine coccidiosis, protozoan disease caused by Eimeria species, is major parasitic diseases characterized by contagious enteritis. Severity of Eimeria spp. infection is more in young animals. Two goat kids aged below one year died with history of mucoid to haemorrhagic yellow watery diarrhea, anorexia, emaciation, poor growth and death. At necropsy, gross lesions in intestines revealed diffus...

Journal: :Polish journal of veterinary sciences 2015
A Dziekońska Ł Zasiadczyk M Lecewicz R Strzeżek M Koziorowska-Gilun L Fraser M Mogielnicka-Brzozowska W Kordan

The aim of this study was to investigate the effects of storage of semen in different commercial extenders on the pre-freezing and post-thawing quality of boar spermatozoa. Semen was diluted in BTS, Androhep (AH) and Gedil (GD), stored for 24 h at 17°C, and then frozen in accordance with the cryopreservation protocol. Analyses of the quality of spermatozoa included: motility, normal apical ridg...

2015
Michelle Rijsdijk

Introduction: Spermatozoa selection for Intracytoplasmic Sperm Injection (ICSI) is a paramount factor in the outcome of a fertility treatment cycle. Nature has perfected the selection process by using the cumulus matrix to select spermatozoa that are morphologically and genetically normal. Aim: To determine which method of semen preparation delivers the best results in terms of spermatozoa sele...

Journal: :Journal of Ayub Medical College, Abbottabad : JAMC 2010
N Hameed O Ozturk

BACKGROUND Normal fertilization and ongoing pregnancy can be achieved using intracytoplasmic sperm injection (ICSI), even with severely immature spermatozoa. However, the published literature documents conflicting results as to the outcome of ICSI. METHODS Surgical extraction of spermatozoa in 111 ICSI treatment cycles performed over five years at the Assisted Conception Unit (ACU), Universit...

2017
Ravi Kant S. K. Atreja

In this study, buffalo spermatozoa were in-vitro capacitated and acrosome reacted using modified Tyrode’s bicarbonatebuffered medium (sp-TALP media). Lipids were extracted from freshly ejaculated, in-vitro capacitated and acrosome reacted buffalo spermatozoa. The total lipid content of freshly ejaculated spermatozoa (171.5±2.90 μg/108 cells), capacitated spermatozoa (128.2±3.29 μg/108 cells) an...

2013
Kyung-Bon Lee Ki-Eun Park In-Kiu Kwon Swamy K. Tripurani Keun Jung Kim Ji Hye Lee Koji Niwa Min Kyu Kim

This study investigated the development of rat oocytes in vitro and in vivo following intracytoplasmic injection of heads from spermatozoa heat-dried at 50°C for 8 h and stored at 4°C in different gas phases. Sperm membrane and chromosome are damaged by the process of heat-drying. Oocyte activation and cleavage of oocytes were worse in oocytes injected with spermatozoa heat-dried and stored for...

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