Joint Expert Group on Animal Feed and Feed Additives - AFFAJEG

Last updated: 06 May 2021

About Us

The Animal Feed and Feed Additives Joint Expert Group assesses and provides advice to the FSA or other government departments on applications for the authorisation of feed additives and substances used in animal feed for both animals and human consumers of animal derived products and on other topics relevant to the assessment of such applications as requested.  The group coordinates with and considers the opinions of other relevant bodies concerned with the assessment of feed additives and provides advice on general principals or new scientific discoveries in connection with the authorisation of feed additives and substances.  


Professor John Wallace

John is an emeritus professor with the Rowett Institute at the University of Aberdeen.  His research focus has been gut microbiology, particularly of farm animals, and their role in animal nutrition, animal health and environmental impact. In addressing these research topics, he developed wide expertise in microbial ecology and metagenomics, and on feed additives that modify the animal gut microbiome, including antibiotics, ionophores, pre- and probiotics and phytochemicals, particularly essential oils.  This expertise in feed additives led to his appointment to the FEEDAP (feed additives) panel of the European Food Safety Authority 2012-2018.  John chaired EFSA working groups on amino acids and vitamins and on methodology for regulatory assessment, served in working groups on microorganisms and organic acids, and was heavily involved in the 2016-2018 revisions of EFSA guidance documents.

Dr Katrina Campbell 

Katrina is a Professor in Food Security at the Queens University Belfast. Katrina has substantive experience in the development of diagnostic tools to ensure food security, safety in contaminant monitoring and sustainability in their applicability within the food supply chain. She has extensive experience of (bio) analytical method development, validation and evaluation with state of the art technologies. Her research focuses on the identification and recognition of known and emerging threats within the entire food supply chain from “environment to farm to fork”, to determine their consequential effects and to implement mitigation tools to prevent negative health and/or economic implications. 

Susan MacDonald

Susan is Science Lead for the areas of mycotoxins and natural toxins at Fera. In addition, she is Head of the UK National Reference Laboratory for Mycotoxins and Plant Toxins. She is a research scientist, as well as being a project manager, and providing advice & training on mycotoxins (and other contaminants) including analysis and regulations, as well as general laboratory quality. Susan is a member of two European expert committees for standardisation of analytical methods for natural toxins.

Professor Nicholas Jonsson 

Nicholas is a Professor of Animal Production and Public Health at the University of Glasgow.  He was an animal veterinary practitioner in Australia for seven years before commencing an academic career in livestock production and health. He has particular interest in applied animal health research. His research interests are broad and revolve around nutritional, technological, genetic and management strategies for the control of production diseases and parasites of grazing livestock.

Christine McAlinden

Christine is a board-certified and European Registered toxicologist with over 20 years’ experience within the industry. In toXcel International Ltd, in her role as Associate Director, she provides leadership in business and scientific affairs on behalf of European operations. Christine has served on the education committee of the British Toxicology Society, as a Panel member for the UK Register of Toxicologists, and as a toxicologist for the Food Standards Agency’s Advisory Committee on Animal Feedingstuffs (ACAF).

Martin Briggs (ACMSF member)

Martin currently works for GLW Feeds Ltd. with a scientific background is in applied biology. He has extensive practical experience across the feed industry in nutrition, hygiene, medicines, quality, feed assurance and manufacturing animal feed. He has experience of undertaking risk assessment for animal feed and the role it has in the human food chain.