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	1.	Influence of long-term feeding of limited amounts of phosphorus on dry matter intake, milk production, and body weight of dairy cows. [electronic resource] by Valk, H Sebek, L B Producer: 19991124 In: Journal of dairy science vol. 82 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Influence of phosphorus intake on excretion and blood plasma and saliva concentrations of phosphorus in dairy cows. [electronic resource] by Valk, H Sebek, L B J Beynen, A C Producer: 20030224 In: Journal of dairy science vol. 85 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Clinical effects of feeding low dietary phosphorus levels to high yielding dairy cows. [electronic resource] by Valk, H Sebek, L B Van't Klooster, A T Jongbloed, A W Producer: 20150310 In: The Veterinary record vol. 145 Availability: No items available. Save to lists Add to cart (remove)
	4.	Effects of genotype by environment interactions on milk yield, energy balance, and protein balance. [electronic resource] by Beerda, B Ouweltjes, W Sebek, L B J Windig, J J Veerkamp, R F Producer: 20080912 In: Journal of dairy science vol. 90 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	5.	Milk urea concentration as an indicator of ammonia emission from dairy cow barn under restricted grazing. [electronic resource] by van Duinkerken, G Smits, M C J André, G Sebek, L B J Dijkstra, J Producer: 20110307 In: Journal of dairy science vol. 94 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	6.	Effect of rumen-degradable protein balance and forage type on bulk milk urea concentration and emission of ammonia from dairy cow houses. [electronic resource] by van Duinkerken, G André, G Smits, M C J Monteny, G J Sebek, L B J Producer: 20050721 In: Journal of dairy science vol. 88 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	7.	Effect of graded doses and a high dose of microbial phytase on the digestibility of various minerals in weaner pigs. [electronic resource] by Kies, A K Kemme, P A Sebek, L B J van Diepen, J Th M Jongbloed, A W Producer: 20061019 In: Journal of animal science vol. 84 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)