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Cited by 94Ruminant Nutrition and Digestive PhysiologyAnimal Nutrition and PhysiologyAgricultural Engineering and Mechanization

A quantitative model of the ensilage process in lactate silages

PITT, R. E., MUCK, R. E., LEIBENSPERGER, R. Y.·1985·Grass and Forage Science
DOI 10.1111/j.1365-2494.1985.tb01755.x
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Abstract

Abstract A model of the ensilage process is presented which can be used to predict silage quality in lactate silages. The model simulates the major microbial and biochemical processes during ensilage, including aerobic respiration, hydrolysis of hemicellulose. growth and death of lactic acid bacteria and their production of lactic and acetic acids, reduction in pH, change in soluble sugar content, increase in osmotic potential, and proteolysis. The model is designed to operate on mixtures of grasses, legumes, or whole‐plant corn. Parameters for the model are developed from published silage experiments and pure‐culture bacterial studies. The model gives reasonably accurate predictions of key silage quality parameters, but further experimental work is needed on growth of lactic acid bacteria and on plant‐enzyme proteolysis. Predicted final pH depends primarily on the pH at which bacterial growth and death rates are equal. Initial bacterial concentration affects the time to rapid pH change, while maximum bacterial growth rate affects the rate of decline thereafter.

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Crossref · 10.1111/j.1365-2494.1985.tb01755.x

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Authors
PITT, R. E., MUCK, R. E., & LEIBENSPERGER, R. Y.
Affiliations
Cornell University (US)
Corresponding author
PITT, R. E.
ORCID
MUCK, R. E.
Venue
Grass and Forage Science
Publisher
Wiley
Published
1985-09
Volume
40
Issue
3
Pages
279-303
ISSN
  • 0142-5242 (ISSN-L)
  • 1365-2494
DOI
10.1111/j.1365-2494.1985.tb01755.x
OpenAlex
W2157424621
Cited by
94
References
58
Citations by year
2026: 1 · 2025: 1 · 2023: 2 · 2022: 1 · 2021: 3 · 2020: 4 · 2019: 3 · 2018: 5 · 2017: 2 · 2016: 2 · 2015: 5 · 2014: 3 · 2013: 4 · 2012: 1
FWCI
3.76
Type
journal article
Language
en
Open access
closed
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor, 7543 d)
Locations
Grass and Forage Science (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Ruminant Nutrition and Digestive Physiology
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Nutrition and Physiology
  • Physical Sciences › Engineering › Mechanical Engineering › Agricultural Engineering and Mechanization
Keywords
silage fermentation, lactic acid bacteria, pH reduction, hemicellulose hydrolysis, proteolysis, soluble sugars, osmotic potential, aerobic respiration, whole-plant corn, grass-legume mixtures, mathematical model

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