Objectives

Aims

• Bring together researchers of many European countries in order to create a collaboration network which focuses on the epigenome of gametes and embryos at periconception.

• Describe the epigenetic modulators and profile during periconception, and will develop an epigenomic toolbox.

• Inform the public, the livestock breeders and the industry on how the epigenome can be manipulated via the periconception environment.

Objectives

• Develop an epigenomic toolbox including novel sequencing technologies and bioinformatics.
  Due to rapid changes in molecular tools these techniques will allow for large scale screening of epigenetic changes in gametes and embryos.

• Define the factors that can influence the epigenetic profile during the periconceptional period.
  These factors can be physical stressors like cold or heat, high pressure, nutritional status of the animal, maternal health or sickness, feed supplements or deficiencies, pharmaceuticals, endocrine factors, culture media.

• Define the time-window at which most epigenetic changes take place.
  We address the key developmental periods. The spermatogenesis takes two months in most livestock; oocyte and follicular development takes three or four months. The fertilization that remodels parental chromatin takes a few hours. The embryogenesis will undergo epigenetic reprogramming during the first months of pregnancy.

• Identify the range of optimum periconception environments to ensure healthy offsprings.
  We will identify these environments for each species studied, based on our experimental data.

• Compare the susceptibility of livestock, poultry, fish species to epigenetic disturbances.

• Interact with the artificial insemination industry.
  We will discuss how our achievements can be adapted in gamete and embryo production protocols such as in vitro fertilisation, semen collection, cryopreservation of semen, embryos and superovulation.

• Inform the scientific community and the public.
  We will disseminate our results on altering the epigenome via the periconception environment for members of the public and for people in the animal production industry in the forms of scientific communications, brochures and leaflets.

Short Term Scientific Missions (STSM)

The STSMs are exchange visits which aim to strengthen the existing research networks. They allowed scientists to go to an institution or laboratory in another COST country; to foster collaboration, learn new techniques, and use instruments or methods not available in their own institution or laboratory.