Cited by 137Ruminant Nutrition and Digestive PhysiologyAnimal Nutrition and PhysiologyMycotoxins in Agriculture and Food

The effect of treating whole-plant barley with Lactobacillus buchneri 40788 on silage fermentation, aerobic stability, and nutritive value for dairy cows

Open access
Taylor, C.C., Ranjit, N.J., Mills, J.A., Neylon, J.M., Kung, L.·2002·Journal of Dairy Science

Abstract

Chopped barley forage was ensiled untreated or treated with several doses (1 x 10(5) to 1 x 10(6) cfu/g of fresh forage) of Lactobacillus buchneri 40788 in laboratory silos and untreated or treated (4 x 10(5) cfu/g) in a farm silo. Silage from the farm silos was fed to lactating cows. In the laboratory silo, the effects of inoculation on fermentation and aerobic stability were also compared to silage treated with a commercial inoculant and a buffered propionic acid additive. Inoculation with L. buchneri 40788 decreased the final concentrations of lactic acid but increased concentrations of acetic acid and ethanol in silage from laboratory and farm silos. Silages stored in laboratory silos did not heat after exposure to air for 7 d and were then mixed with alfalfa silage and a concentrate to form total mixed rations (TMR) that were further exposed to air. The TMR containing silages treated with L. buchneri 40788 or a buffered propionic-acid-based additive took longer to heat and spoil than the TMR containing untreated silage or silagetreated with the commercial inoculant. Silage stored in a farm silo and treated with L. buchneri 40788 had fewer yeasts and molds than did untreated silage. Aerobic stability was greater in treated silage alone and in a TMR containing treated silage. Dry matter intake (18.6 kg/d), milk production (25.7 kg/d), and milk composition did not differ between cows fed a TMR containinguntreated or treated silage. These findings show that L. buchneri can improve the aerobic stability of barley silage in laboratory and farm silos and that feeding treated silage had no negative effect on intake or performance.

AI snapshot

Written from the paper’s full text.

TL;DR

Treating whole-plant barley silage with Lactobacillus buchneri 40788 increased acetic acid and ethanol, reduced lactic acid, improved aerobic stability in laboratory and farm silos, and had no negative effect on intake or milk production in lactating dairy cows. The highest laboratory dose was most effective for TMR stability, while farm-treated silage had fewer yeasts and longer stability than untreated.

Key findings

  • In laboratory silos after 120 d, L. buchneri 40788 lowered lactic acid (control 3.53% vs 2.11–2.51% for LB1–LB3) and raised acetic acid (control 2.48% vs 4.06–4.98%) and ethanol (control 0.43% vs average 0.91% for treated); propionic acid was greater for LB2 (1.29%) and LB3 (1.44%) than control (0.28%).
  • Laboratory silages did not heat after 7 d air exposure, but TMR containing L. buchneri-treated barley was more stable than TMR with untreated silage (95 h); BPA was 105 h and LB1/LB2 averaged 106 h, with the highest dose most effective.
  • In the farm silo after 10 mo, treated barley silage had fewer yeasts (2.63 vs 4.89 log10 cfu/g) and greater aerobic stability (190 h vs 66 h) than untreated; TMR stability was also greater with treated silage.
  • Lactation study: DMI (18.6 kg/d), milk production (25.7 kg/d), and milk composition did not differ between cows fed TMR containing untreated vs treated barley silage.

Methods

  • Laboratory silo study: chopped whole-plant barley wilted to ~36% DM, ensiled in macro silos in triplicate with untreated, L. buchneri 40788 at 1 × 10^5, 5 × 10^5, or 1 × 10^6 cfu/g plus enzymes, a commercial inoculant, or a buffered propionic acid additive; stored 120 d at 20–27°C, then analyzed for fermentation, microbes, DM recovery, and aerobic stability alone and in TMR.
  • Lactation study: barley harvested at early heading, wilted to ~40% DM, ensiled untreated or treated with L. buchneri 40788 at 4 × 10^5 cfu/g in a bag silo; after 10 mo, 20 Holstein cows (14 multiparous, 6 primiparous; average 25 kg milk/d, 184 ± 28 DIM) were used in a crossover design with two 4-wk periods, last 2 wk collection, fed TMR with 35% untreated or treated barley silage, 15% corn silage, 50% concentrate.
  • Analyses: microbial data log10-transformed; chemical data on DM basis; ANOVA via SAS GLM, Tukey’s test, P < 0.05.

Limitations

  • Stated: the lactation study was designed to evaluate potential negative effects of feeding L. buchneri-treated silage during moderate weather (22–28°C), not to show positive effects under severely hot weather and/or poor management.
  • Stated: 1,2-propanediol was not measured, and some findings (e.g., propionic acid increases, lower starch/CP in LB2) were unexplained.
  • Evident: the farm-scale silo comparison used one bag silo split into untreated and treated halves rather than replicated farm silos; laboratory silages did not heat after 7 d, so TMR stability was assessed using alfalfa silage with high yeast/mold counts (5.17 and 3.00 log10 cfu/g) that spoiled after 124 h.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.3168/jds.s0022-0302(02)74253-7

Cites

24 of 24 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

0 of 27 cited sources checked · 0 supported · 0 flagged

  • Findingown data

    Total mixed rations containing barley silage treated with a buffered propionic acid-based additive took longer to heat and spoil than total mixed rations containing barley silage treated with the commercial inoculant.

    “The TMR containing silages treated with L. buchneri 40788 or a buffered propionicacid-based additive took longer to heat and spoil than the TMR containing untreated silage or silage treated with the commercial inoculant.”
    Quote in the paperSubstantial claim
  • Findingown data

    Dry matter intake did not differ between lactating cows fed a total mixed ration containing untreated barley silage and cows fed a total mixed ration containing barley silage treated with Lactobacillus buchneri 40788.

    “Dry matter intake (18.6 kg/d), milk production (25.7 kg/d), and milk composition did not differ between cows fed a TMR containing untreated or treated silage.”
    • Also stated in: § Lactation Study · plain
      “Dry matter intake, milk production, and milk composition were not different between treatments (Table 7).”
    Quote in the paperNot a substantial claim
  • Findingown data

    Aerobic stability was greater in farm-silo barley silage treated with Lactobacillus buchneri 40788 than in untreated farm-silo barley silage.

    “Aerobic stability was greater in treated silage alone and in a TMR containing treated silage.”
    • Also stated in: § Lactation Study · plain
      “The aerobic stability of untreated silage was 66 h, whereas treated silage was stable for 190 h.”
    Quote in the paperSubstantial claim
  • Findingown data

    Milk production did not differ between lactating cows fed a total mixed ration containing untreated barley silage and cows fed a total mixed ration containing barley silage treated with Lactobacillus buchneri 40788.

    “Dry matter intake (18.6 kg/d), milk production (25.7 kg/d), and milk composition did not differ between cows fed a TMR containing untreated or treated silage.”
    • Also stated in: § Lactation Study · plain
      “Dry matter intake, milk production, and milk composition were not different between treatments (Table 7).”
    Quote in the paperSubstantial claim
  • Findingown data

    Total mixed rations containing barley silage treated with Lactobacillus buchneri 40788 took longer to heat and spoil than total mixed rations containing barley silage treated with the commercial inoculant.

    “The TMR containing silages treated with L. buchneri 40788 or a buffered propionicacid-based additive took longer to heat and spoil than the TMR containing untreated silage or silage treated with the commercial inoculant.”
    Quote in the paperSubstantial claim
  • May combine two claims. 8
  • Classified as probably not a substantial claim. 13
  • The quote only partly states this claim. 1
  • May combine two claims.

    Findingown data

    Butyric acid concentration was 0.84% in untreated silage and was lower in silage treated with LB2, LB3, the commercial inoculant, and the buffered propionic acid-based additive.

    “Butyric acid was 0.84% in untreated silage and was lower in silage treated with LB2, LB3, IN, and BPA”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    The alfalfa silage used in the experimental total mixed rations had been ensiled without additives and contained 5.17 log10 cfu/g of yeasts and 3.00 log10 cfu/g of molds.

    “The alfalfa silage had been ensiled without additives and contained 5.17 and 3.00 log 10 cfu of yeasts and molds, respectively.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Yeast and mold numbers were very low (less than 2.5 log10 cfu/g) and did not differ among treatments in the laboratory silo study.

    “The numbers of yeasts and molds were very low (less than 2.5 log 10 cfu/g) and not different among treatments.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Findingown data

    The aerobic stability of corn silage alone was 60 hours.

    “Specifically, the number of yeasts averaged 5.22 log 10 cfu/g, and the aerobic stability of corn silage alone was 60 h.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Findingown data

    Small differences were observed in dry matter, pH, and water-soluble carbohydrate concentration in freshly chopped barley forage before ensiling.

    “Small differences were observed in DM, pH, and concentration of WSC in freshly chopped barley forage before ensiling (Table 1).”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Treatments had no effect on residual ammonia-nitrogen concentration, except for a higher level in silage treated with LB1.

    “Treatments had no effects on the concentration of residual NH 3 -N, with the exception of a higher level of NH 3 -N for silage treated with LB1.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Findingown data

    Mold counts in freshly chopped barley forage ranged from 3.85 to 4.50 log10 cfu/g.

    “Yeasts ranged from 4.46 to 5.83 log 10 cfu/g, and molds ranged from 3.85 to 4.50 log 10 cfu/g.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Findingown data

    The number of yeasts in corn silage averaged 5.22 log10 cfu/g.

    “Specifically, the number of yeasts averaged 5.22 log 10 cfu/g, and the aerobic stability of corn silage alone was 60 h.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Under farm conditions, a moderate dose (4 × 10^5 cfu/g) of L. buchneri 40788 improved the aerobic stability of barley silage alone and of a TMR containing that silage.

    “Under farm conditions, a moderate dose (4 × 10 5 ) of L. buchneri 40788 also improved the aerobic stability of barley silage alone and of a TMR comprised of the treated silage.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Study design and conductown data

    Cows in the lactation study were blocked on days in milk, parity, and milk yield and then randomly allocated to one of two treatments.

    “After the pretreatment period, cows were blocked on DIM, parity, and milk yield and randomly allocated to one of two treatments.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Interpretationown data

    Feeding barley silage treated with Lactobacillus buchneri 40788 had no negative effect on intake or performance of lactating cows.

    “and that feeding treated silage had no negative effect on intake or performance.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing). The quote only partly states this claim.

    Study design and conductown data

    The lactation study used a crossover design consisting of two 4-week periods.

    “The study during the treatment period was a crossover design that consisted of two 4-wk periods.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Premisenone given

    L. buchneri 40788 treatment has increased propionic acid in some silages but not all, and the reason is unclear.

    “Treatment with L. buchneri 40788 has also increased the concentrations of propionic acid in some (Driehuis et , 1999a;Kung and Ranjit, 2001) but not all silages (Ranjit and Kung, 2000), and the reason for this finding is unclear at this time.”
    Quote in the paperNot a substantial claim0 of 3 sources checked
    • cites Driehuis et , 1999a

      Not checked in the free run.

    • cites Kung and Ranjit, 2001 source

      Not checked in the free run.

    • cites Ranjit and Kung, 2000 source

      Not checked in the free run.

  • Classified as probably not a substantial claim.

    Premisecitation

    Past studies have sometimes associated high acetic acid concentrations in silages with lower DMI.

    “In past studies, high concentrations of acetic acid in silages have sometimes been associated with lower DMI (Wilkins et al., 1971;Rook and Gill, 1990).”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites Wilkins et al., 1971 source

      Not checked in the free run.

    • cites Rook and Gill, 1990

      Not checked in the free run.

  • Classified as probably not a substantial claim.

    Premisecitation

    Inoculation with the heterolactic acid bacterium Lactobacillus buchneri has recently been shown to markedly improve the aerobic stability of a variety of silage crops.

    “Recently, the aerobic stability of a variety of silage crops has been markedly improved by inoculation with a heterolactic acid bacterium, Lactobacillus buchneri.”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites Muck, 1996

      Not checked in the free run.

    • cites Driehuis et al., 1999a

      Not checked in the free run.

    • cites Ranjit and Kung, 2000 source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationreasoning

    When DMI is depressed and associated with feeding silages high in acetic acid (not from L. buchneri 40788 treatment), other unidentified factors related to undesirable fermentation may contribute to the intake depression.

    “In circumstances where DMI is depressed and associated with feeding silages with high concentrations of acetic acid (but not from treatment with L. buchneri 40788), other unidentified factors related to the undesirable fermentation may be contributing to the depression in intake.”
    Quote in the paperNot a substantial claim
  • Classified as probably not a substantial claim.

    Premisecitation

    Recent summaries have observed few strong relationships between silage acids and intake.

    “However, this tenet is controver-sial, as few strong relations between silage acids and intake have been observed in recent summaries (Steen et al., 1998;Wright et al., 2000).”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites Steen et al., 1998 source

      Not checked in the free run.

    • cites Wright et al., 2000 source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductcitation

    Animal care in the study followed accepted protocols.

    “the care of animals was via accepted protocols (Federation of Animal Science Societies, 1999).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Federation of Animal Science Societies, 1999

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Previous studies found that low levels of buffered propionic acid additives consistently improved aerobic stability of laboratory silages.

    “In previous studies, treatment with low levels of buffered propionic acid additives have consistently improved the aerobic stability of silages ensiled in laboratory silos (Kung et al., 1998;Kung et al., 2000).”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites Kung et al., 1998 source

      Not checked in the free run.

    • cites Kung et al., 2000 source

      Not checked in the free run.

  • Classified as probably not a substantial claim.

    Premisecitation

    In that prior study, dry matter intake was not affected when cows were fed treated silage.

    “In that study, DMI was not affected when cows were fed treated silage.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Driehuis et al., 1999b

      Not checked in the free run.

20 of 20
  • The paper relies on this without support.

    Bunker silos result in considerable amounts of silage that are exposed to air.

    “However, these structures result in considerable amounts of silage that are exposed to air”
  • The paper relies on this without support.

    Complaints related to the poor aerobic stability of silages from bunker silos have increased.

    “complaints related to the poor aerobic stability of silages from these types of silos have increased.”
  • The paper relies on this without support.

    Unless silages are packed tightly and managed well during removal, infiltration of air into the silage mass can stimulate the growth of aerobic microbes and cause silage to spoil quickly.

    “Unless the silages are packed tightly and managed well during removal from the silo, infiltration of air into the silage mass can stimulate the growth of aerobic microbes and cause silage to spoil quickly.”
  • The paper relies on this without support.

    Lactobacillus buchneri inhibits the proliferation of yeasts in silage via the production of acetic acid.

    “Lactobacillus buchneri has been shown to inhibit the proliferation of yeasts in silage via the production of acetic acid.”
  • The paper relies on this without support.

    Higher concentrations of acetic acid inhibit yeasts.

    “Thus, silage treated with L. buchneri 40788 often has a moderately high concentration of ethanol despite having lower numbers of yeasts, which are inhibited by the higher concentration of acetic acid.”
5 of 5

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

Each contradiction between two passages listed here was confirmed by an independent check.

  • Laboratory TMR formulations differ between Methods and Results

    Major

    Methods state that the laboratory TMR contained 30% barley silage, 30% alfalfa silage, and 40% concentrate. Results give 35%, 15%, and 50%, respectively, for the experimental TMR.

  • Discussion claims lower LB2 starch despite Results saying starch was unaffected

    Major

    Results state that treatment did not affect starch concentration, whereas the Discussion calls lower starch in LB2 an exception. Table 2 provides no significance letters for its starch row.

  • CP is described as unaffected despite differences in Table 2

    Minor

    Results say treatment did not affect CP, but Table 2 assigns unlike significance letters to CP values, including control (ab) and LB2 (c), indicating a difference under the paper's stated convention.

3 of 3

Cites

Flagged first, then by citations

Research works printed but not linked: 2

  1. Hoffman, 1997, Quantification of milk yield losses associated with feeding aerobically unstable high moisture corn, J. Dairy Sci., 80, 234
  2. Whitlock, 2000, Effect of level of surface-spoiled silage on the nutritive value of corn silage diets, J. Dairy Sci., 83, 110

Cited by

Sorted by citations

Authors
Taylor, C. C., Ranjit, N. J., Mills, J. A., Neylon, J. M., & Kung, L.
Affiliations
University of Delaware (US)
Corresponding author
Kung, L.
Venue
Journal of Dairy Science
Published
2002-07
Volume
85
Issue
7
Pages
1793-1800
ISSN
0022-0302 (ISSN-L)
OpenAlex
W1993794810
Cited by
137
References
24
Citations by year
2026: 2 · 2025: 2 · 2024: 3 · 2023: 7 · 2022: 3 · 2021: 4 · 2020: 12 · 2019: 3 · 2018: 4 · 2017: 3 · 2016: 3 · 2015: 9 · 2014: 7 · 2013: 3 · 2012: 10
FWCI
9.72
Type
journal article
Language
en
Open access
Locations
  • Journal of Dairy Science (publishedVersion)
  • PubMed (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
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Mycotoxins in Agriculture and Food
Keywords
barley silage, silage inoculation, aerobic stability, silage fermentation, lactic acid, acetic acid, ethanol, silage spoilage, molds and yeasts, silage inoculants, total mixed ration, dairy cattle, dry matter intake, milk production, milk composition
MeSH terms
Aerobiosis, Animals, Animal Feed, Animal Nutritional Physiological Phenomena, Hordeum, Cattle, Female, Fermentation, Food Preservation, Lactation, Lactobacillus, Nutritive Value, Propionates, Silage, Colony Count, Microbial, Acetic Acid

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