نتایج جستجو برای: embryo sexing

تعداد نتایج: 68168  

2018
Mridula Sharma Anoop Singh Nishant Sharma

Predetermination of sex is of commercial importance since economic value of each livestock species is different for different sex. Embryo sexing enables the producers to run a fewer recipient female and thus quickly increase the size of their herd. The widespread use of embryo transfer technology has created an alternative approach in controlling the sex of offspring. The methods used can be gr...

Journal: :iranian journal of veterinary research 2015
k. gh. m. mahmoud t. h. scholkamy s. f. darwish

cryopreservation and sexing of embryos are integrated into commercial embryo transfer technologies. to improve the effectiveness of vitrification of in vitro produced buffalo embryos, two experiments were conducted. the first evaluated the effect of exposure time (2 and 3 min) and developmental stage (morula and blastocysts) on the viability and development of vitrified buffalo embryos. morphol...

2013
Hiroki HIRAYAMA Soichi KAGEYAMA Satoru MORIYASU Ken SAWAI Akira MINAMIHASHI

In domestic animals of the family Bovidae, sex preselection of offspring has been demanded for convenience of milk/beef production and animal breeding. Development of the nonsurgical embryo transfer technique and sexing methods of preimplantation embryos made it possible. Sexing based on detection of Y chromosome-specific DNA sequences is considered the most reliable method to date. PCR enables...

A. Kumar A. Saxena B. Kumar J. Kumar Agrawal V. Sachan,

Different livestock sectors as beef industries get benefit from the production of male animals while dairy industries get benefit from the milk production by the female animals. Therefore, it is obvious need to produce the animals of desired sex which can be achieved by predetermining the sex of conceptus at the time of conception i.e. pre determination of sex may be of great economic importanc...

Journal: :Genetics and molecular research : GMR 2016
K C S Tavares I S Carneiro D B Rios C Feltrin A K C Ribeiro S Gaudêncio-Neto L T Martins L H Aguiar C R Lazzarotto C E M Calderón F E M Lopes L P R Teixeira M Bertolini L R Bertolini

Embryo sexing is a powerful tool for livestock producers because it allows them to manage their breeding stocks more effectively. However, the cost of supplies and reagents, and the need for trained professionals to biopsy embryos by micromanipulation restrict the worldwide use of the technology to a limited number of specialized groups. The aim of this study was to couple a fast and inexpensiv...

J. Kouamo S.D. Kharche,

Although the mechanisms under which sex ratio is controlled in nature remain unknown, researchers have attempted to treat sperm in an effort to predetermine the sex of the offspring. The methods of sperm separation that have been repeatedly reported to isolate fractions rich in X- or Y-chromosome bearing sperm are serum albumin gradient swim-up and flow cytometry. However, the ability of the se...

Journal: :iranian journal of applied animal science 2015
j. kouamo s.d. kharche

although the mechanisms under which sex ratio is controlled in nature remain unknown, researchers have attempted to treat sperm in an effort to predetermine the sex of the offspring. the methods of sperm separation that have been repeatedly reported to isolate fractions rich in x- or y-chromosome bearing sperm are serum albumin gradient swim-up and flow cytometry. however, the ability of the se...

Journal: :Reproduction in domestic animals = Zuchthygiene 2007
G A Presicce

In this paper, an account of various aspects related to buffalo reproduction are given. Fundamental concepts of the reproductive physiology as well as manipulation of the reproductive function will be presented. This will include an overview of the most recent developments of the oestrous cycle and the ovulation control, new strategies of reproductive management for the improvement of genetic g...

K. Gh. M. Mahmoud, S. F. Darwish T. H. Scholkamy

Cryopreservation and sexing of embryos are integrated into commercial embryo transfer technologies. To improve the effectiveness of vitrification of in vitro produced buffalo embryos, two experiments were conducted. The first evaluated the effect of exposure time (2 and 3 min) and developmental stage (morula and blastocysts) on the viability and development of vitrified buffalo embryos. Morphol...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید