Results 11 to 20 of about 312,199 (285)

They Can't Have My Embryo: The Ethics of Conditional Embryo Donation [PDF]

open access: yes, 2013
There are substantial numbers of frozen embryos in storage that will not be used by those who produced them for their own fertility treatment. One option for such embryos is to donate them to others to use in their fertility treatment.
Eric Blyth   +4 more
core   +1 more source

ASSESSMENT OF THE EFFICACY O SEPHADEX FILTRATION OF BUFFALO SPERMATOZOA FOR CRYOPRESERVATION [PDF]

open access: yesVeterinary Medical Journal - Giza, 2006
In the present study, two experiments were conducted. The first experiment aimed to study the influence of buffalo bull semen filtration throughout different grades of sephadex columns (G-25, G-50, G-75, G-100 and G-200) on semen quality.
MAHA ZIADA   +3 more
doaj   +1 more source

Epidermal growth factor regulates autophagy activity and endocytosis of yak cumulus cells in a concentration-dependent manner

open access: yesFrontiers in Veterinary Science, 2023
IntroductionAutophagy and endocytosis are crucial biological activities in mammalian follicle development and oocyte maturation, which are easily affected by external environmental factors.
Rui Ma   +17 more
doaj   +1 more source

THE IDENTIFICATION OF CHROMOSOMAL POLYMORPHISM IN ONE BREED OF IRAQI SHEEP

open access: yesThe Iraqi Journal of Veterinary Medicine, 1989
A chromosomal analysis of three breeds of Iraqi sheep (Karadi Arabi and Awassi) has been performed on peripheral lymphocytes. The modal chromosome number of all the three breeds was found to be (2n=54XX/54XY) for femal and male respectively.
A. A. Yasseen   +3 more
doaj   +1 more source

EFFECT OF SOYBEAN LECITHIN ON FREEZABILITY AND FERTILIZING POTENTIALS OF BOVINE SPERMATOZOA [PDF]

open access: yesAssiut Veterinary Medical Journal, 2012
Soybean lecithin has been attracted increasing attention and has been used to replace egg yolk in the semen extender. In the present study, effect of soybean lecithin on bovine semen freezability and in vitro fertilizing potentials were evaluated.
BADR, M.A.   +3 more
doaj   +1 more source

Leukemia inhibitory factor enhances the development and subsequent blastocysts quality of yak oocytes in vitro

open access: yesFrontiers in Veterinary Science, 2022
Leukemia inhibitory factor (LIF) is a multipotent cytokine of the IL-6 family which plays a critical role in the maturation and development of oocytes.
Tian Zhao   +23 more
doaj   +1 more source

Embryo donation parents' attitudes towards donors : comparison with adoption [PDF]

open access: yes, 2008
BACKGROUND: Embryo donation produces a family structure where neither rearing parent is genetically related to the child, as in adoption. It is not known how embryo donation parents view the donors compared with how adoptive parents view the birth ...
MacCallum, Fiona
core   +1 more source

CRYOPRESERVATION OF IMMATURE BUFFALO OOCYTES BY VITRIFICATION [PDF]

open access: yesAssiut Veterinary Medical Journal, 2008
Cryopreservation of collected oocytes from slaughtered animals of high genetic value, for production of embryos may provide an opportunity to replenish the valuable germplasm lost. The aim of this study was to cryopreserve the immature buffalo oocytes by
M.R. BADR, G.M. DARWISH, D.A. EL-BADRY
doaj   +1 more source

EFFECT OF AMINO ACIDS ON RAM SPERM FREEZABILITY, BIOCHEMICAL ULTRASTRUCTURE CHANGES AND FERTILIZING POTENTIALS [PDF]

open access: yesAssiut Veterinary Medical Journal, 2015
The objective of this study was to investigate the effects of non essential amino acids solution (NESS) to freezing extender on standard qualitative semen parameters (motility, viability and acrosomal integrity), oxidative parameters (antioxidant enzymes
BADR, M.A.   +4 more
doaj   +1 more source

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