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Related Experiment Videos

Embryo technology: implications for fertility in cattle.

T Greve1, H Callesen

  • 1Royal Veterinary and Agricultural University, Department of Large Animal Sciences, Dyrlaegevej 68, 1870 Frederiksberg C, Denmark.

Revue Scientifique Et Technique (International Office of Epizootics)
|August 23, 2005
PubMed
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Advances in cattle embryo technologies offer insights into fertility. Studies highlight the impact of endocrine profiles and epigenetics on embryo development, while noting risks like large offspring syndrome.

Area of Science:

  • Reproductive biology
  • Embryology
  • Animal science

Background:

  • Over 30 years of research on cattle embryo technologies, including classical (superovulation, embryo transfer) and advanced methods (in vitro production, cloning).
  • These studies have elucidated oocyte development, fertilization, and conceptus development, contributing to our understanding of cattle fertility.

Purpose of the Study:

  • To synthesize structural and functional information from cattle embryo studies.
  • To gain new insights into embryo technologies and factors influencing fertility in cattle.
  • To highlight the role of endocrine profiles and epigenetics in reproductive success.

Main Methods:

  • Review of basic and experimental studies on classical and advanced cattle embryo technologies.
  • Analysis of data on oocyte development, quality, fertilization, and conceptus development.

Related Experiment Videos

  • Examination of the influence of peripheral and follicular endocrine profiles on embryo competence.

    • Main Results:

    • Peripheral and follicular endocrine profiles significantly impact embryo developmental competence.
    • Oocyte and embryo manipulation can adversely affect embryonic and fetal development, potentially causing large offspring syndrome.
    • Epigenetics plays a crucial role in cattle reproduction.

    Conclusions:

    • Cattle embryo technologies provide valuable insights into fertility factors.
    • Understanding endocrine influences and epigenetic modifications is key to improving reproductive outcomes.
    • Caution is advised regarding potential adverse effects of embryo manipulation, such as large offspring syndrome.