A commercially viable cattle embryo transfer (ET) industry was established during the early 1970s. Initially, techniques for recovering and transferring cattle embryos were exclusively surgical. However, by the late 1970s, most embryos were recovered and transferred nonsurgically. Successful cryopreservation of embryos was widespread by the early 1980s, followed by the introduction of embryo sp...

Embryo transfer (ET) in Holstein dairy cattle became an important commercial enterprise after the introduction of non-surgical recovery technique. Embryo transfer could increase the reproductive rate of genetically superior cows. The objectives of the present study were to evaluate the use of ET in Iranian Holstein dairy cattle to increase selection intensity on the dam side, economically; esti...

The uterus is the reproductive organ where embryo formed by fertilization of sperm and egg settles continues its development until birth. With transition transplantation from experimental studies to clinical trials starting have babies in this way, offers a solution that can enable these women children genetically on their own grow them wombs. Uterine transplant procedure combines both assisted...

Research questionWhat impact does direct-to-consumer genetic testing (DTCGT) have on information sharing in relation to gamete donor conception?DesignThis study used in-depth qualitative interviews with parents through conception, donors, donors’ relatives and donor-conceived people who used, or considered using, DTCGT. Interviews were conducted between September 2021 February 2023.We interview...

background: successful embryo transfer (et) technique is a fateful step of all efforts to achieve live births from in vitro produced embryos in assisted reproductive techniques or in knockout, transgenic or cloned animal projects. small reproductive tract of mice and limitation of current techniques may not well satisfy the requirements for mass production of genetically modified mice. genetic ...

Table of content 1 E2 and progesterone effects: the donor-egg IVF lesson * 1.1 Only E2 and progesterone are necessary for optimal receptivity * 1.2 The follicular phase: sufficient E2 priming * 1.3 The luteal phase: progesterone induces a sequences of transformation * 1.4 Endometrial glands and the stroma: two steps in the sequence of endometrial changes. * 1.5 E2 to progesterone ratio * 2 Regi...

STUDY QUESTION Is there a link between morphometric characteristics measured by a computer-assisted scoring system and clinical pregnancy outcome? SUMMARY ANSWER The results confirm that computer-assisted assessment of the total embryo volume is associated with clinical pregnancy outcome and can be used to complement current procedures of embryo selection. WHAT IS KNOWN ALREADY Morphometric...

Background GnRH agonist triggering is one of the strategies for ovulation triggering and final maturation of oocytes. So , should be notice for luteal phase support in these cycles. At the first it was began for prevention of severe OHSS but it was associated with luteal phase problem and lower pregnancy rate due to luteolysis effects of GnRH agonists. So, two other alternative strategies have ...

Background: The assisted reproductive techniques (ARTs) such as in vitro fertilization, embryo transfer and cryopreservation of gametes have considerably contributed to the development of biomedical sciences in addition to improved breeding in domestic animals and infertility treatment in humans. However, ARTs used in canine species have strictly limited utility when compared with other mammali...

Abstract: Nitric oxide (NO) can act in biochemical pathways of the germination process; however, there is little information about how it acts on performance pea seeds. The aim this study was to evaluate physiological and effects NO seed vigor. Pea seeds cv. Itapuã 600 obtained from three lots with different levels quality were sown a substrate moistened water (control) or sodium nitroprusside ...