Sanne van Gastelen is a senior researcher in dairy cattle nutrition at Wageningen Livestock Research, department Animal Nutrition. Wageningen Livestock Research is part of Wageningen University & Research, where we perform fundamental, innovative, and application-oriented research and search for solutions for sustainable and profitable livestock farming. We offer industry, sector and governments development opportunities for applied innovations for all livestock farming sectors, and within our department we focus specifically on animal nutrition.Tell us about your experience in the dairy cattle nutrition sector? I am active in dairy cattle nutrition research for the last 11 year. My research focuses mainly on challenges in dairy cattle nutrition aiming for healthy animals producing milk at low environmental costs. I am involved in several experimental research programs, regarding the relationships between diet quality or feed additives and enteric methane emissions of dairy cattle. In the recent years, the focus of the research has shifted partially to the reduction of nitrogen excretion (ammonia in particular) from dairy cattle using different dietary strategies. Additionally, the relationship between rumen microbiota, diet composition, and enteric methane emission in both dairy cattle and youngstock has been my interest, with particular focus on early life interventions and steering the development of the rumen microbiome towards persistent low methane emission.
What is the topic of your presentation? I will present how we could potentially decrease the emission of methane and the excretion of nitrogen from dairy cattle using different dietary strategies, preferably without negatively impacting the health of the animals and their production characteristics.
Why is this topic important now? Worldwide we are facing the challenge to reduce methane emission from animal production, while simultaneously increasing the production of animal-sourced food to meet the projected increase in demand. This also applies to the dairy industry. In addition, in the Netherlands specifically, we are facing the challenge to reduce nitrogen excretion to remain below the European nitrogen ceiling. Mitigation of both methane emission and nitrogen excretion can be achieved using dietary strategies.
‘You are what you eat’ also applies to dairy cows. Hence, mitigation of ammonia and methane can be achieved using dietary strategies.
Sanne van Gastelen PhD will speak on day 1 (7 June) 11:05 CEST