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Effects of stage of maturity at harvest, wilting and LAB inoculant on aerobic stability of wheat silages
Year:
2010
Source of publication :
Animal Feed Science and Technology
Authors :
Hen, Yaira
;
.
Khanal, Prabhat
;
.
Weinberg, Zvi G.
;
.
Volume :
158
Co-Authors:
Weinberg, Z.G., Forage Preservation and By-Products Research Unit, ARO, The Volcani Center, Bet Dagan, Israel
Khanal, P., Forage Preservation and By-Products Research Unit, ARO, The Volcani Center, Bet Dagan, Israel
Yildiz, C., Department of Animal Science, Ataturk University, Erzurum, Turkey
Chen, Y., Forage Preservation and By-Products Research Unit, ARO, The Volcani Center, Bet Dagan, Israel
Arieli, A., Department of Animal Science, Faculty of Agricultural, Food and Environmental Quality Sciences, Rehovot, Israel
Facilitators :
From page:
29
To page:
35
(
Total pages:
7
)
Abstract:
The objective was to study effects of cultivar, stage of maturity at harvest, wilting, and addition of lactic acid bacterial (LAB) inoculant at ensiling, and their interactions, on the aerobic stability of wheat silages. Wheat of two cultivars, harvested at the flowering or the milk stage of maturity were ensiled in mini-silos, either directly after cutting (DC) or after wilting (W). After 2-7 months of storage, silages were subjected to a 7-day aerobic stability test during which changes in chemical composition, dry matter (DM) and neutral detergent fiber (aNDF) digestibility, and temperature, as well as DM losses and CO2 production, were measured. Silages from wheat cultivar BH were relatively dry (DM between 287 and 430 g/kg) and were mostly stable upon aerobic exposure. The flowering wheat of cultivar Galil was moister (DM of 199 g/kg), and the DC silages were stable upon aerobic exposure. Silages of the wilted flowering wheat (DM of 370 g/kg) spoiled and after 4 and 7 days, produced 15 and 76 g/kg DM CO2, respectively. Silages from the milk stage of this cultivar, both DC and W were unstable, and a homofermentative LAB enhanced aerobic spoilage. Factorial analysis of variance was applied to the results with cultivar, stage of maturity, wilting and inoculant as main effects, as well as their interactions. Cultivar and LAB inoculant had effects on silage composition and aerobic stability, with stage of maturity having an effect on aerobic losses, whereas wilting did not have effects on aerobic spoilage indicators. The inoculant enhanced CO2 production in the silages prepared from the DC wheat of the flowering and milk stages, as compared with the respective non-inoculated control silages which contained high concentrations of VFA. However, in the wilted silages which contained less VFA, both control and inoculated silages deteriorated similarly with time of exposure to air. © 2010 Elsevier B.V. All rights reserved.
Note:
Related Files :
Aerobic stability
Bacteria (microorganisms)
Silage composition
Triticum aestivum
Wheat silages
Show More
Related Content
More details
DOI :
10.1016/j.anifeedsci.2010.03.006
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
26364
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:22
Scientific Publication
Effects of stage of maturity at harvest, wilting and LAB inoculant on aerobic stability of wheat silages
158
Weinberg, Z.G., Forage Preservation and By-Products Research Unit, ARO, The Volcani Center, Bet Dagan, Israel
Khanal, P., Forage Preservation and By-Products Research Unit, ARO, The Volcani Center, Bet Dagan, Israel
Yildiz, C., Department of Animal Science, Ataturk University, Erzurum, Turkey
Chen, Y., Forage Preservation and By-Products Research Unit, ARO, The Volcani Center, Bet Dagan, Israel
Arieli, A., Department of Animal Science, Faculty of Agricultural, Food and Environmental Quality Sciences, Rehovot, Israel
Effects of stage of maturity at harvest, wilting and LAB inoculant on aerobic stability of wheat silages
The objective was to study effects of cultivar, stage of maturity at harvest, wilting, and addition of lactic acid bacterial (LAB) inoculant at ensiling, and their interactions, on the aerobic stability of wheat silages. Wheat of two cultivars, harvested at the flowering or the milk stage of maturity were ensiled in mini-silos, either directly after cutting (DC) or after wilting (W). After 2-7 months of storage, silages were subjected to a 7-day aerobic stability test during which changes in chemical composition, dry matter (DM) and neutral detergent fiber (aNDF) digestibility, and temperature, as well as DM losses and CO2 production, were measured. Silages from wheat cultivar BH were relatively dry (DM between 287 and 430 g/kg) and were mostly stable upon aerobic exposure. The flowering wheat of cultivar Galil was moister (DM of 199 g/kg), and the DC silages were stable upon aerobic exposure. Silages of the wilted flowering wheat (DM of 370 g/kg) spoiled and after 4 and 7 days, produced 15 and 76 g/kg DM CO2, respectively. Silages from the milk stage of this cultivar, both DC and W were unstable, and a homofermentative LAB enhanced aerobic spoilage. Factorial analysis of variance was applied to the results with cultivar, stage of maturity, wilting and inoculant as main effects, as well as their interactions. Cultivar and LAB inoculant had effects on silage composition and aerobic stability, with stage of maturity having an effect on aerobic losses, whereas wilting did not have effects on aerobic spoilage indicators. The inoculant enhanced CO2 production in the silages prepared from the DC wheat of the flowering and milk stages, as compared with the respective non-inoculated control silages which contained high concentrations of VFA. However, in the wilted silages which contained less VFA, both control and inoculated silages deteriorated similarly with time of exposure to air. © 2010 Elsevier B.V. All rights reserved.
Scientific Publication
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