نتایج جستجو برای: embryo sexing
تعداد نتایج: 68168 فیلتر نتایج به سال:
A number of studies require the determination of the genetic sex of mouse embryos before sexual differentiation and/or of mutant mice that display partial or complete sex reversal. The majority of current methods for sexing by PCR involve multiplexing of 2 primer pairs. We have developed a novel sexing PCR using a single primer pair that amplifies fragments from the X and the Y chromosome with ...
Abstract Despite being a widely consumed genre of visual culture, pornography remains touchy subject in contemporary queer historiography. Queer archives overflow with it, but histories don’t. Historically associated low culture and distrusted by value systems that have tended to privilege the “high” faculties reason detriment “base” materiality body, its affects appetites, porn is too rarely a...
BACKGROUND Since it was established in 1997, the ESHRE PGD Consortium has been collecting data from international preimplantation genetic diagnosis (PGD) centres. Ten papers have been published, including data from January 1997 to December 2007. METHODS The data collection originally used a hard-copy format, then an excel database and finally a FileMaker Pro database. The indications are divi...
Can the optimum animal be defined? Will that definition change over time, by location, by market demand? First, assume what may be impossible, that the perfect animal can be defined or that only a limited number of definitions of "perfect" are needed. Then, can the "perfect" animal to match a definition be found? Suppose such an animal is found. Then the question to be answered before trying to...
The objective of this study was to identify the migration period of the genital tubercle and the period of visualization of external genital structures in fetuses of the Dorper breed of sheep derived from natural mating and from fresh, frozen and vitrified embryo transfer. Transrectal ultrasound was performed using a double-frequency linear transducer (6.0 and 8.0 MHz) to monitor 130 ewe fetuse...
This paper provides basic concepts of genomic selection (GS) methods in beef and dairy cattle production in combination with assisted reproductive technologies (ART) such as ovum-pick up and in vitro production (OPU-IVP). We first introduce genomic tools and discuss main methods of GS as practiced todate. The general benefit from GS is that it enables selecting animals accurately early in life ...
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