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Journal of Dairy Science|March 8, 2016
Influence of milk urea concentration on fractional urea disappearance rate from milk to blood plasma in dairy cowsJ W Spek, J Dijkstra, A BanninkTijdschrift Voor Diergeneeskunde|February 15, 1983
[The occurrence of antibodies to various Leptospira serotypes in swine in The Netherlands in the period 1975-1980]Z Bercovich, C W Spek, I Comvalius-AdriaanPoultry Science|April 7, 2025
Pre-cecal calcium digestibility of eggshell products in broilersJ van Harn, J W Spek, P BikkerDevelopmental Biology|February 1, 1988
Cell cycle phase in Dictyostelium discoideum is correlated with the expression of cyclic AMP production, detection, and degradation. Involvement of cyclic AMP signaling in cell sortingM Wang, R J Aerts, W Spek, et al.The Veterinary Quarterly|January 15, 1981
Serological diagnosis of Erysipelothrix rhusiopathiae: a comparative study between the growth inhibition test and the complement fixation testZ Bercovich, C D Weenink van Loon, C W SpekFEBS Letters|February 15, 1988
Opposite effects of adenosine on two types of cAMP-induced gene expression in Dictyostelium indicate the involvement of at least two different intracellular pathways for the transduction of cAMP signalsW Spek, K van Drunen, R van Eijk, et al.Journal of Dairy Science|July 23, 2013
Interaction between dietary content of protein and sodium chloride on milk urea concentration, urinary urea excretion, renal recycling of urea, and urea transfer to the gastrointestinal tract in dairy cowsJ W Spek, A Bannink, G Gort, et al.Journal of Dairy Science|October 16, 2012
Effect of sodium chloride intake on urine volume, urinary urea excretion, and milk urea concentration in lactating dairy cattleJ W Spek, A Bannink, G Gort, et al.Journal of Dairy Science|May 14, 2013
Prediction of urinary nitrogen and urinary urea nitrogen excretion by lactating dairy cattle in northwestern Europe and North America: a meta-analysisJ W Spek, J Dijkstra, G van Duinkerken, et al.British Poultry Science|September 17, 2016
Precaecal phosphorus digestibility of inorganic phosphate sources in male broilersP Bikker, J W Spek, R A Van Emous, et al.Pageof 3