Modification of the in vitro bovine embryo production substrates using guaiazulene and melatonin
Abstract
Media synthesis for bovine in vitro embryo production (IVP), mimics the in vivo composition of fluids where oocytes mature (follicular fluid, FF), are fertilized and early embryonic development occurs (FF and oviductal fluid, OF). Given that oxidative stress adversely affects the IVP outcome, in this study we assessed the antioxidant capacity (AC) of the bovine FF and OF as well as that of the IVP media. We adjusted the in vitro to the in vivo conditions by using the antioxidants guaiazulene (G) and melatonin (M) and evaluated the effect of this adjustment on the IVP efficiency. The circadian manner of the in vivo M secretion was also taken into consideration. FF and OF samples were collected from 10 Holstein cows in oestrus. Media samples from all the IVP phases, namely in vitro oocyte maturation (IVM), in vitro fertilization (IVF) and in vitro embryo culture (IVC) as well as samples coming from serially diluted samples of the antioxidants in IVP media were also used in order to choos ...
show more
Download full text in PDF format (2.79 MB)
(Available only to registered users)
|
All items in National Archive of Phd theses are protected by copyright.
|
Usage statistics
VIEWS
Concern the unique Ph.D. Thesis' views for the period 07/2018 - 07/2023.
Source: Google Analytics.
Source: Google Analytics.
ONLINE READER
Concern the online reader's opening for the period 07/2018 - 07/2023.
Source: Google Analytics.
Source: Google Analytics.
DOWNLOADS
Concern all downloads of this Ph.D. Thesis' digital file.
Source: National Archive of Ph.D. Theses.
Source: National Archive of Ph.D. Theses.
USERS
Concern all registered users of National Archive of Ph.D. Theses who have interacted with this Ph.D. Thesis. Mostly, it concerns downloads.
Source: National Archive of Ph.D. Theses.
Source: National Archive of Ph.D. Theses.