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Mostakim, Al Mohammad, 2013. Does oxygen pass through the water lock of laboratory silos used for ensiling studies?. Second cycle, A2E. Uppsala: SLU, Dept. of Animal Nutrition and Management



As Ensiling practice requires an anaerobic environment, it is important to ensure an anaerobic environment for lab-scale silo as well as allow the release of fermentation gases from silo. The effect of using water lock on laboratory silos was studied. Three sealing methods (metal lid with water lock, metal lid without water lock and metal lid with water lock later replaced by metal lid without water lock) were studied. Silos were filled with lucerne to examine the extent of oxygen passing through the water lock. Two removable rubber stoppers were added with two replicates to observe the effect of air stress in laboratory silos. In addition, empty silo jars were made to explore how much oxygen could pass through the water lock.
As expected the silage was badly preserved because of low DM, low WSC with high buffering capacity and oxygen inlet into silo. Data from experiment proved that some oxygen passed through the water lock but it did not have a significant effect on fermentation quality. Fitting a water lock on the top of water lock was proved to be effective to seal the laboratory silo.

Main title:Does oxygen pass through the water lock of laboratory silos used for ensiling studies?
Authors:Mostakim, Al Mohammad
Supervisor:Pauly, Thomas
Examiner:Spörndly, Rolf
Series:Examensarbete / Sveriges lantbruksuniversitet, Institutionen för husdjurens utfodring och vård
Volume/Sequential designation:460
Year of Publication:2013
Level and depth descriptor:Second cycle, A2E
Student's programme affiliation:VM003 Animal Science - Master's Programme 120 HEC
Supervising department:(VH) > Dept. of Animal Nutrition and Management
Keywords:Laboratory silo, Water lock, Air lock, Water trap, Siphon, Gas-release valve, Air, Oxygen, Silage
Permanent URL:
Subject. Use of subject categories until 2023-04-30.:Agricultural research
Feed processing and preservation
Deposited On:29 Nov 2013 10:55
Metadata Last Modified:29 Nov 2013 10:55

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