Article (Scientific journals)
Floor slat openings impact ammonia and greenhouse gas emissions associated with group-housed gestating sows
Philippe, François-Xavier; Laitat, Martine; Wavreille, José et al.
2016In Animal, 10 (12), p. 2027-2033
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Keywords :
ammonia; slatted floor; gestating sows; greenhouse gases; drainage openings
Abstract :
[en] According to EU legislation, group-housed gestating sows must have a minimum of 2.25m2 floor area per sow with at least 1.3m2 of continuous solid floor of which a maximum of 15% is reserved for drainage openings. The aim of the experiment was to quantify the impact of different drainage openings on ammonia and greenhouse gas emissions. Three successive batches of 10 gestating sows were used. Each batch was divided into two groups kept separately in two identical rooms with similar volume and surface. The solid part of the floor presented 15% drainage openings in the first room and 2.5% in the second room. The gas emissions (ammonia (NH3), methane (CH4), nitrous oxide (N2O), carbon dioxide (CO2) and water vapour (H2O)) were measured three times during 6 consecutive days. Gaseous emissions were significantly lower with 15% drainage openings with reductions of 19% for NH3 (12.77 v. 15.83 g/day per sow), 15% for CH4 (10.15 v. 11.91 g/day per sow), 10% for N2O (0.47 v. 0.52 g/day per sow), 9% for CO2 (2.41 v. 2.66 kg/day per sow) and 13% for H2O (3.25 v. 3.75 kg/day per sow). This trial showed the advantage, in an environmental point of view, to use 15% drainage openings on the solid part of partly slatted floors in pens for group-housed gestating sows.
Disciplines :
Environmental sciences & ecology
Animal production & animal husbandry
Author, co-author :
Philippe, François-Xavier ;  Université de Liège > Département des productions animales (DPA) > Génétique quantitative
Laitat, Martine  ;  Université de Liège > Département clinique des animaux de production (DCP) > Département clinique des animaux de production (DCP)
Wavreille, José
Nicks, Baudouin ;  Université de Liège > Département des productions animales (DPA) > Département des productions animales (DPA)
Cabaraux, Jean-François  ;  Université de Liège > Département des productions animales (DPA) > Ecologie de la santé et des productions animales
Language :
English
Title :
Floor slat openings impact ammonia and greenhouse gas emissions associated with group-housed gestating sows
Publication date :
2016
Journal title :
Animal
ISSN :
1751-7311
eISSN :
1751-732X
Publisher :
Cambridge University Press, Cambridge, United Kingdom
Volume :
10
Issue :
12
Pages :
2027-2033
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 11 July 2017

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