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Rebaling of silage and haylage and its effects on forage microbial and chemical composition - A pilot study

Müller, Cecilia and Johansen, Astrid (2020). Rebaling of silage and haylage and its effects on forage microbial and chemical composition - A pilot study. Grass and Forage Science. 75 , 216-226
[Journal article]

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Abstract

Use of big bale silage and haylage can be difficult on farms where daily forage consumption is comparatively low as speed of deterioration of forage after bale opening may be faster than feed-out rate. Production of smaller bales at harvest is possible, but expensive and work-intensive. Therefore, a pilot study of rebaling forage stored in big bales to smaller bales was conducted. Three separate experiments were included, where microbial and chemical composition of silage and haylage was studied before and after rebaling. In Experiment III, residual big bale forage stored and opened together with rebaled forage was included. Results showed that rebaled haylage and silage had higher yeast counts compared to initial forage; however, residual bales in Experiment III had yeast counts similar to rebaled forage, indicating an effect of storage time rather than of rebaling. In Experiment II, mould counts were higher in rebaled compared to initial silage, but not in haylage. Chemical composition was similar in initial and rebaled forage except for ammonia-N. In Experiment III, ammonia-N was higher in rebaled compared to initial and residual forage and was the only chemical variable affected by rebaling. Bale temperature during aerobic storage followed ambient temperature until day 6-8 in Experiment I and until day 14 in Experiment III where ambient temperature was lower. In conclusion, rebaling can be done without large changes in chemical composition of the forage, but yeast and mould counts may be higher in rebaled forage, and this risk should be considered when using this procedure.

Authors/Creators:Müller, Cecilia and Johansen, Astrid
Title:Rebaling of silage and haylage and its effects on forage microbial and chemical composition - A pilot study
Year of publishing :2020
Volume:75
Page range:216-226
Number of Pages:11
Publisher:John Wiley & Sons Ltd
ISSN:0142-5242
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution-Noncommercial 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 402 Animal and Dairy Science > Animal and Dairy Science.
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
Keywords:additive, aerobic stability, bale, forage, horse, yeast
URN:NBN:urn:nbn:se:slu:epsilon-p-105411
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-105411
Additional ID:
Type of IDID
DOI10.1111/gfs.12480
Web of Science (WoS)000527883600001
ID Code:17249
Faculty:VH - Faculty of Veterinary Medicine and Animal Science
Department:(VH) > Dept. of Animal Nutrition and Management
Deposited By: SLUpub Connector
Deposited On:10 Jul 2020 10:45
Metadata Last Modified:07 Sep 2020 03:41

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