Ida Hallberg

I am a veterinarian since 2014. After graduating, I worked clinically for a few years in district practice and in small animal practice. Although I now spend most of my time as a researcher, I still maintain some clinical work in the field of small animal reproduction, where I also have AI (artificial insemination) competence in dogs and am pursuing a European specialization in reproduction.

I completed my doctoral training at the Department of Clinical Sciences. The title of my thesis was “Oocyte maturation in a contaminated environment: effects of perfluoroalkyl substances on bovine early embryo development in vitro,” and the project focused on how synthetic chemicals, primarily PFAS, can affect female fertility. After my PhD, I have continued with research and am currently a researcher at the Department of Animal Biosciences.

I study how humans and animals are exposed to synthetic chemicals and how these affect the health of both animals and humans.

To understand how humans and animals are exposed to synthetic chemicals, I investigate how diet and lifestyle influence the levels of chemicals in the body, and how these substances are transported through the feed-food chain. I also examine the link between chemicals and health in humans and animals, with a primary focus on how exposure may affect fertility and the endocrine system.

Ongoing research, selected projects

PFAS in Agriculture, Risks and Monitoring (PFARM), 2026–2030
Investigates the occurrence and transport of PFAS in the feed-food chain, with a focus on cattle. Funded by FORMAS (2025-00870) and supported by the Swedish Board of Agriculture.

Reproductive disorders from chemical mixtures relevant to humans and dogs (REPROMANDO)
Examines how chemical mixtures affect fertility in male dogs using cell models derived from both humans and dogs. Funded by the Swedish Research Council (PI: Jana Weiss, Stockholm University).

TikTok – Fertility challenges in bitches: inflammatory, endocrine, and environmental factors relevant to fertility and pregnancy, 2026–2030
Investigates how inflammatory and endocrine markers, as well as synthetic chemicals, are linked to fertility in female dogs. Funded in part by the Mats F. and Catharina Linde Forsberg Foundation and Agria’s Research Fund.

Endocrine-disrupting substances in follicular fluid related to reduced embryo quality
Explores how chemicals measurable in the human ovary affect early development. Uses a model based on slaughterhouse-derived material to study early embryo development. Funded by FORMAS (PI: Sara Persson).

I teach in the veterinary program, primarily in the clinical part of the program during the final years. I have been involved in teaching in some capacity since 2016 within the field of clinical reproduction, and I teach across most animal species.

In addition to teaching in the veterinary program, I occasionally give lectures in doctoral courses or other courses on topics such as One Health and chemical exposure and its health effects.