Person

Dr.ir. J. Dijkstra

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Completed research projects

(the most recent research is at the top)
Researcher	Combatting methane by animal feed
Co-supervisor	Increasing desaturase activity in the mammary gland of dairy cows through nutrition to improve the fatty acid profile of milk
Co-supervisor	Altering rumen biohydrogenation to improve the milk fatty acid profile of dairy cows
Co-supervisor	Nitrogen utilisation by dairy cows and MUN as indicator for ammonia emission reduction from dairy cow houses
Researcher	Using variation in milk urea for sustainability
Researcher	Development, evaluation and application of a model to reduce methane emission as a result of enteric fermentation in the gastrointestinal tract of dairy cows.
Co-supervisor	Modelling volatile fatty acids production in the rumen of dairy cows.
Co-supervisor	Passage of feed particles and feed components through differentcompartments of the digestive tract in dairy cows.
Co-supervisor	Improving nutrient utilisation by synchronisation using the preruminant calf as a model.
Co-supervisor	Kineticts of degradation and formation of end products in vitro of different fractions in ruminant feeds
Co-supervisor	Effects of different cultivars of perennial ryegrass on intake, digestibility and milk production in dairy cows.
Project leader	Physical fractionation of grains and legume seeds and their nutrient supply estimated from rumen degradation kinetics and end product formation determined in vitro.
Co-supervisor	Effects of foraging management on ingestive behaviour, rumenfermentation and nutrient supply of dairy cows grazing mixed pastures intemperate regions of South America.
Co-supervisor	Mechanistic modelling of dynamics of nutrient partitioning in growing pigs to predict their anatomical body composition.
Co-supervisor	Modelling the quantitative impact of solid feeds to the protein and energy metabolism of veal calves.
Co-supervisor	Analysis of the effects of (sub)plant and crop-related differences due to cultivar, stage of growth and season in perennial ryegrass on digestion pattern and N utilisation in grass-fed and grazing dairy cattle
Project leader	Analysis of the effects of (sub)plant and crop-related differences due to cultivar, stage of growth and season in perennial ryegrass on digestion pattern and N utilisation in grass-fed and grazing dairy cattle
Co-supervisor	Analysis of the effects of (sub)plant and crop-related differences due to cultivar, stage of growth and season in perennial ryegrass on production, quality, selection, and intake characteristics in grass-fed and grazing dairy cattle