T-Stor
 

T-Stor >
Irish Journal of Agricultural & Food Research >
IJAFR, Volume 50, no. 2, 2011 >

Please use this identifier to cite or link to this item: http://hdl.handle.net/11019/66

Title: Factors influencing the conservation characteristics of baled and precision-chop grass silages
Authors: McEniry, Joseph
Forristal, P.D.
O'Kiely, Padraig
Keywords: Baled silage
Fermentation
Grass silage
Precision-chop silage
Issue Date: 2011
Publisher: Teagasc (Agriculture and Food Development Authority), Ireland
Citation: Factors influencing the conservation characteristics of baled and precision-chop grass silages. J. McEniry, P.D. Forristal and P. O'Kiely. IJAFR Vol. 50, No. 2 (2011), pp. 175-188
Series/Report no.: Irish Journal of Agricultural and Food Research;Volume 50: Number 2, 2011
Abstract: The composition of baled silage on Irish farms frequently differs from that of comparable precision-chop silage. This paper concerns a field-scale study designed to investigate: (a) the effects of number of layers (2, 4, 6 or 8) of polyethylene stretch film and the duration of storage (7 vs. 18 months) on the conservation characteristics of baled silage, and (b) the conservation characteristics of baled (4 layers of stretch film) and precision-chop silages. All silages were made following three durations of wilting (0, 24 or 48 h). Wilting restricted silage fermentation, with silage pH being highest (P<0.001) and the concentration of fermentation products lowest (P<0.001) for the 48 h wilt treatment. Wrapping bales in only 2 layers of polyethylene stretch film resulted in extensive visible mould growth, but mould growth was practically eliminated by the application of 4 or more layers of film. Silage fermentation characteristics were generally improved by wilting, and by 4 compared to 2 layers of stretch film. Extending the storage duration of baled silage from 7 to 18 months reduced (P<0.001) the concentration of fermentation products and increased in-silo fresh weight losses (P<0.001) and visible mould growth. Whereas 4 layers of conventional stretch film are normally sufficient, 6 layers may be necessary to prevent mould growth when bales of unwilted silage are stored for a second season. Under good farm-management conditions differences observed between baled and precision-chop silages probably result mainly from differences in the concentration of dry matter in herbage at ensiling.
Description: peer-reviewed
URI: http://hdl.handle.net/11019/66
ISSN: 0791-6833
Appears in Collections:Crop Science
IJAFR, Volume 50, no. 2, 2011
Grassland Science

Files in This Item:

File Description SizeFormat
Vol. 50 No. 2 pp 175-188.pdf197.66 kBAdobe PDFView/Open

This item is protected by original copyright


View Statistics

Items in T-Stor are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! Teagasc - The Agriculture and Food Development Authority  2012  - Feedback