X
XLinkedinWhatsAppTelegramTelegram
0

Effects of space allowance and floor type on gaseous emissions from gestating sows

This study aims to compare emissions of pollutant gases (NH3, N2O, CH4, CO2) from gestating sows kept on straw based deep litter depending on the space allowance and the floor type.
16 April 2010
X
XLinkedinWhatsAppTelegramTelegram
0
This study aims to compare emissions of pollutant gases (NH3, N2O, CH4, CO2) from gestating sows kept on straw based deep litter depending on the space allowance (trial 1) and the floor type (trial 2).

Successive batches of 10 gestating sows were divided in two homogeneous groups. For each group, pen consists in a bedded area placed beside five feeding stalls on concrete floor. For trial 1 (4 batches), the access to the stalls was prevented outside the feeding time (restricted diet, one meal a day during 1 hour) and the space allowance was 2.5 or 3.0 m²/sow for the two groups respectively. For trial 2 (3 batches), the access to the stalls was allowed outside the feeding time for one of the two groups. Space allowance of these sows consists in a concrete area of 1.2 m²/sow and a bedded area of 1.8 m²/sow. Space allowance of the other group consists in a bedded area of 3.0 m²/sow. The gas emissions were measured by infra red photoacoustic detection during 3 periods of 6 consecutive days throughout the gestation period.

Increasing bedded space allowance (trial 1) enhanced NH3‐emissions but decreased N2O‐, CH4‐ and CO2‐emissions. Free access to the concrete area without modification of space allowance (trial 2) had little impact on NH3‐emissions, decreased N2O‐emissions and increased CH4‐ and CO2‐emissions.

F.-X. Philippe, J. –F. Cabaraux, B. Canart, M. Laitat, J. Wavreille, N. Bartiaux-Thill, B. Nicks. Effets de la surface disponible et du type de sol sur les émissions gazeuses lors de l’élevage de truies gestantes. 2010. Journées Recherche Porcine, 261.

Article Comments

This area is not intended to be a place to consult authors about their articles, but rather a place for open discussion among pig333.com users.
Leave a new Comment

Access restricted to 333 users. In order to post a comment you must be logged in.

You are not subscribed to this list pig333.com in 3 minutes

Weekly newsletter with all the pig333.com updates

Log in and sign up on the list

Related articles

You are not subscribed to this list Swine News

Swine industry news in your email

Log in and sign up on the list