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In dit rapport worden de resultaten gepresenteerd van metingen die in opdracht van Productschap Vlees en Vee (PVV) en ICE/Beerepoot op twee bedrijven voor vleeskalveren zijn uitgevoerd volgens de case-control benadering om het effect van verschillende roostervloeren op de emissies van ammoniak en geur te bepalen. Ammoniakemissies waren significant lager voor "Groene vlag" met kleppen, en niet significant verschillend voor "Groene vlag" zonder kleppen en voor "EasyFix", ten opzichte van de traditionele houten roostervloer die ook gemeten is op deze bedrijven (control-case benadering).Geuremissies waren niet significant verschillend voor "Groene vlag" met kleppen, "Groene vlag" zonder kleppen en "EasyFix" ten opzichte van de traditionele houten roostervloer die gemeten is op deze bedrijven (control-case benadering). Summary UKThis report presents the results of measurements performed at two animal facilities for veal calves using the control-case approach, to estimate the ammonia and odour emission reduction of a number of floors compared to the traditional wooden slatted floor. These measurements were commissioned by PVV (Productschap Vlees en Vee) and by ICE/Beerepoot. Ammonia emissions from the floor "Groene vlag" with valves were significantly lower, whereas from the floor "Groene vlag" without valves and from the floor "EasyFix" differences were not significant, when compared to the emission from the traditional floor measured simultaneously within the same farm (case-control approach).Odour emissions were not significant different for the floors "Groene vlag" with valves, "Groene vlag" without valves and "EasyFix" when compared to the emission from the traditional floor measured simultaneously within the same farm (case-control approach).This report can be downloaded for free at http://dx

SummaryThe research into alternative floors for veal calves comprised of two parts: (i) a preliminary study, and