Monitoring van methaan-, ammoniak- en lachgasemissies uit stallen voor rosé vleeskalveren: Praktijkmetingen in de periode oktober 2018-oktober 2020

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Abstract

This report describes the results of ammonia, methane and nitrous oxide emission measurements on 2 farms for red meat veal calves between October 2018 and October 2020. The measurements were performed continuously using a measurement system equipped with sensors for ammonia, methane and carbon dioxide. Besides, reference measurements (ammonia, methane, nitrous oxide) according to current measurement protocols were performed every 2 months. Goal of the measurements was to determine the average emissions of methane (CH4), ammonia (NH3) andnitrous oxide (N2O) from red meat veal calves. No significant differences were found between the emissions determined by means of continuous measurements and based on the reference measurements. Due to the limited number of farms that were measured (n=2, of which 1 for youngred meat veal calves and 1 for old red meat veal calves), it was not possible to determine the variation between farms. For young red meat veal calves was the average emission ± standard deviation between measurements (SD; for the protocol measurements) 65.3 ± 35.4 g CH4 per day per animal, 7.6 ± 1.9 g NH3 per day per animal and 0.31 ± 0.13 g N2O per day per animal during the rearing period, and 141.3 ± 60.3 g CH4 per day per animal, 6.9 ± 1.9 g NH3 per day per animal and 0.23 ± 0.14 g N2O per day per animal for the fattening period. For the continuous measurements was for the rearing period the average emission 70.2 ± 38.7 g CH4 per day per animal and 8.0 ± 2.5 g NH3 per day per animal. For the fattening period was the average emission 143.5 ± 65.8 g CH4 per day per animal and 7.5 ± 2.7 g NH3 per day per animal. For old red meat veal calves was for the protocol measurements the average emission ± standard deviation between measurements (SD) 114.0 ± 51.6g CH4 per day per animal, 7.3 ± 3.6 g NH3 per day per animal and 0.23 ± 0.08 g N2O per day per animal for the rearing period, and 275.5 ± 129.1 g CH4 per day per animal, 11.5 ± 4.4 g NH3 per day per animal and 0.81 ± 0.57 g N2O per day per animal for the fattening period. For the continuous measurements was for the rearing period the average emission 114.1 ± 60.7 g CH4 per day per animal and 6.5 ± 3.8 g NH3 per day per animal. For the fattening period was the average emission 304.5 ± 107.6 g CH4 per day per animal and 13.9 ± 6.0 g NH3 per day per animal. No significant differences were found between the emissions determined by means of continuous measurements and those based on protocol measurements.
Original languageDutch
Place of PublicationWageningen
PublisherWageningen Livestock Research
Number of pages57
DOIs
Publication statusPublished - Oct 2022

Publication series

NameRapport / Wageningen Livestock Research
No.1376

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