ILRI Vacancy: Scientist – Ruminant Nutrition & GHG Emissions (open until filled)

The International Livestock Research Institute (ILRI) seeks to recruit a motivated ruminant nutritionist with expertise in GHG emissions and nutrient use efficiency in livestock systems. The successful candidate will help to generate baseline data and test interventions to reduce GHG emissions from ruminant livestock systems in Africa. The position will be part of the Mazingira Centre staff (

ILRI works to improve food and nutritional security and reduce poverty in developing countries through research for efficient, safe and sustainable use of livestock. It is the only one of 15 CGIAR research centres dedicated entirely to animal agriculture research for the developing world. Co-hosted by Kenya and Ethiopia, it has regional or country offices and projects in East, South and Southeast Asia as well as Central, East, Southern and West Africa.

Key Responsibilities

The successful candidate will be expected to conduct marker studies to estimate feed intake and digestibility in rangeland and smallholder livestock systems. Further, s/he is expected to identify and test promising mitigation and adaptation strategies by estimating their effect on enteric methane emissions and animal productivity as well as their potential trade-offs. More specifically the candidate will:

  • Study enteric methane emissions and nutrient flows of ruminant livestock systems in African using direct (animal experiments) and indirect estimations (modelling based on IPCC or other models);
  • Design, conduct, and analyse animal experiments to test interventions to reduce GHG emissions and optimize nutrient fluxes in ruminant livestock systems;
  • Lead and supervise campaigns to collect activity and diet data to estimate GHG emissions;
  • Write and publish scientific papers,, contribute to other communication products (research briefs, policy briefs etc.), and prepare conference/workshop presentations;
  • Contribute and initiate future research projects including grant/proposal writing;
  • Closely cooperate and share results with an interdisciplinary team of researchers with different backgrounds (biogeochemistry, modelling, social sciences, gender studies, rangeland ecology, etc.); and co-supervise PhD, MSc students and guide research technician.


  • A PhD in ruminant or animal nutrition, animal physiology, or other relevant discipline with focus on GHG emissions;
  • Minimum five years relevant experience
  • Experience with some of the following techniques for measuring enteric emissions from ruminant livestock: Chamber, SF6, and GreenFeed;
  • Trained in design and statistical analysis of animal experiments;
  • Excellent publication record;
  • Effectively articulate messages, information, and ideas to a diversity of people, leading to shared understanding. Swahili and French a plus;
  • Knowledge on smallholder livestock production systems in developing countries, particularly mixed crop-livestock and/or grassland-based systems, would be an advantage;
  • Experience in scaling field data by modelling or LCA approaches, would be an advantage;
  • Experience of living or working in the context of developing countries, especially East Africa; would be an advantage.

Post location: The position will be based in Nairobi, Kenya

Terms of Appointment

This is position is at job level HG 18 and it is open to both national and international applicants. The position is a three (3) year contract, renewable subject to satisfactory performance and availability of funding. ILRI offers a competitive salary and benefits package which includes medical and other insurances.

Applications: Applicants should send a cover letter and CV expressing their interest in the position, what they can bring to the role and the names and addresses (including telephone and email) of three referees who are knowledgeable about the candidate’s professional qualifications and work experience to the Director, People and Organizational Development through our recruitment portal by clicking on the screening of applications will start on 22 August 2022 and continue until the position is filled. The position title and reference number: SLS /550/2022 should be clearly marked on the subject line of the online application.

We thank all applicants for their interest in working for ILRI. Due to the high volume of applications, only shortlisted candidates will be contacted.

ILRI does not charge a fee at any stage of the recruitment process (application, interview meeting, processing or training). ILRI also does not concern itself with information on applicants’ bank accounts

To find out more about ILRI visit our websites at

ILRI is an equal opportunity employer.

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