A meta-analysis on the effectiveness of homofermentative and heterofermentative lactic acid bacteria for corn silage.
Open accessAbstract
This meta‐analysis aims to assess the effect of lactic acid bacteria (LAB) inoculation on fermentation parameters, microbiological composition and aerobic stability of corn silage. Databases (PubMed, ScienceDirect and Scopus) were searched from 1980 to 2017. The criteria for inclusion were: randomized and controlled experiments using corn silage and published in peer‐reviewed journals. The meta‐analysis showed that LAB supplementation increased pH, acetate and propionate concentrations, and decreased acid detergent fibre, water‐soluble carbohydrates and ammoniacal nitrogen (NH3‐N) compared to controls in the pooled raw mean difference random effect model. In addition, inoculation reduced counts of yeasts and moulds, increased LAB counts and markedly improved aerobic stability in corn silage. However, results indicated that the effect of inoculants may differ depending on the administration of homofermentative or heterofermentative LAB. For the development of functional bacterial inoculants, both types of LAB should be used. To our knowledge, this is the first meta‐analysis to compare the application of homofermentative and heterofermentative LAB for corn silage.
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Conditions such as forage type, DM at harvest, application rate, temperature and length of conservation can influence LAB activity and their ability to alter silage quality.
“different conditions can influence the activity of LAB and their ability to alter silage quality (Muck et al., 2018), and heterofermentative LAB inoculants have not been consistently effective in improving aerobic stability as a result of the type of forage, the dry matter (DM) of the forage at harvest, variations in the application rate, and the temperature and length of conservation (Kleinschm”
From Lentilactobacillus hilgardii Inoculum, Dry Matter Contents at Harvest and Length of Conservation Affect Fermentation Characteristics and Aerobic Stability of Corn Silage (2021) · cites this paper as Blajman et al., 2018
The Discussion (page unavailable) says crop moisture and other ensiling conditions may affect whether LAB additives work, and discusses application rate. The Corn silage parameters section (page unavailable) reports differences by experiment duration. The paper examines corn silage only and does not establish forage type or temperature as influences, so it does not support the full list of conditions. (LLM, conf=0.84)
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“During the feed-out phase, the contact of the mass with air stimulates the growth of the aerobic microorganisms that are most often responsible for the onset of aerobic instability (Borreani et al., 2018).”
Background
- Authors
- Blajman, J. E., Páez, R. B., Vinderola, C. G., Lingua, M. S., & Signorini, M. L.
- Affiliations
- Consejo Nacional de Investigaciones Científicas y Técnicas (AR)
- National Agricultural Technology Institute (AR)
- Corresponding author
- Blajman, J.E.
- Venue
- Journal of Applied Microbiology
- Publisher
- Oxford University Press (OUP)
- Published
- 2018-09-27
- Volume
- 125
- Issue
- 6
- Pages
- 1655-1669
- ISSN
- 1364-5072 (ISSN-L)
- OpenAlex
- W2888677018
- Cited by
- 82
- References
- 52
- Citations by year
- 2026: 2 · 2025: 13 · 2024: 13 · 2023: 9 · 2022: 17 · 2021: 13 · 2020: 11 · 2019: 4
- FWCI
- 1.06
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Journal of Applied Microbiology (publishedVersion)
- PubMed (publishedVersion)
- CONICET Digital (CONICET) (submittedVersion, cc-by-nc-sa)
- Conicet (submittedVersion, cc-by-nc-sa)
- Funders
- National Institute of Agricultural Technology (1130034, PICT-2016-0256)
- 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
- Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
- Keywords
- lactic acid bacteria, corn silage, homofermentative lactic acid bacteria, heterofermentative lactic acid bacteria, silage inoculants, aerobic stability, silage fermentation, silage pH, volatile fatty acids, acid detergent fiber, water-soluble carbohydrates, ammonia nitrogen, molds and yeasts, silage microbiology
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