The effects of air stress during storage and low packing density on the fermentation and aerobic stability of corn silage inoculated with Lactobacillus buchneri 40788

Kung, L.; Savage, R. M.; Silva, E.B. da; Polukis, S. A.; Smith, Mickey C.; Johnson, A.; Miller, Mark A.

doi:10.3168/jds.2020-19746

Cited by 22 publications

(16 citation statements)

References 48 publications

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“…); however, they are absent in higher elevations. Didymella and Zymoseptoria were also detected in fresh corn (Benjamim Da Silva et al, 2021 ; Kung et al, 2021 ). The exclusive presence of Unclassified_f_Helotiaceae and Unclassified_p_Ascomycota in F4500 and F5000 may be explained by a combination of geographic isolation and unique environmental conditions on the Tibetan Plateau.…”

Section: Discussionmentioning

confidence: 99%

Altitudinal Distribution Patterns of Phyllosphere Microbial Communities and Their Contribution to Silage Fermentation of Kobresia pygmaea Along the Elevation Gradient on the Tibetan Plateau

et al. 2022

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The study aimed to reveal altitudinal distribution patterns of phyllosphere microbial communities and silage fermentation of Kobresia pygmaea along the elevation gradient on the Tibetan Plateau. The K. pygmaea was individually collected from 2,500, 3,000, 4,000, 4,500, and 5,000 m above sea level (a.s.l.) on the Tibetan Plateau and ensiled for 60 days, respectively. The phyllosphere bacterial diversity increased while fungal diversity decreased along the elevation gradient, and bacterial and fungal richness showed a unimodal distribution with peak abundance at 4,000 and 3,000 m a.s.l., respectively. After 60 days of ensiling, the bacterial and fungal community composition changed but did not exhibit clear altitudinal distribution patterns. All K. pygmaea underwent a weak fermentation indicated by pH above 5.0 and low ratio of lactic/acetic acid (LA/AA). The S5000 and S3000 showed the highest and lowest pH, respectively. Although Lactobacillus dominated S4000 after 60 days of ensiling, S4000 still exhibited poor fermentation quality as well as silages from the other four regions. The higher ammonia N concentrations in S3000 and S4000 than the other silages were consistent with the detectable butyric acid in S3000 and S4000. The silage fermentation of K. pygmaea collected from five regions exhibited poor fermentation quality, thereby inoculating lactic acid bacteria to K. pygmaea before ensiling is highly recommended to improve fermentation quality on the Tibetan Plateau.

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Section: Discussionmentioning

confidence: 99%

Altitudinal Distribution Patterns of Phyllosphere Microbial Communities and Their Contribution to Silage Fermentation of Kobresia pygmaea Along the Elevation Gradient on the Tibetan Plateau

et al. 2022

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“…Enterobacter are aerobic bacteria and can increase their growth and reproduction under NV treatment, resulting in higher relative abundance and consuming more fermentable sugars. Previous research also found that poor compaction led to more bacilli and lower fermentation end-products [31]. Inoculation of LAB could inhibit the growth of potentially pathogenic bacteria such as Staphylococcus and improve feed safety.…”

Section: Effect Of Lab Inoculants and V Treatment On Bacterial Community Of Alfalfa Silage At 90 Daysmentioning

confidence: 94%

“…The V treatment was more conducive to fermentation and LA accumulation, showing the importance of maintaining anaerobic conditions during silage. Kung et al [31] observed that the LA content was lower in low density compared with normal density packing (176 vs. 240 kg DM/m 3 ), and the inoculation of LAB even at low-density packing was still beneficial to the fermentation quality of corn silage. In this study, LA content in V-CK and NV-CK decreased significantly during 60-90 days of ensiling, possibly related to the utilization of LA by Clostridium and other harmful bacteria [2].…”

Section: Effect Of Lab Inoculants and V Treatment On Fermentation Characteristics Of Alfalfa Silagementioning

confidence: 99%

Effects of Lactic Acid Bacterial Inoculants on Fermentation Quality, Bacterial Community, and Mycotoxins of Alfalfa Silage under Vacuum or Nonvacuum Treatment

et al. 2021

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To investigate the effects of lactic acid bacterial (LAB) inoculants and vacuuming on the fermentation quality and bacterial community, alfalfas were ensiled with or without a commercial LAB YX or Lactobacillus plantarum strain ZZUA493 for 10, 30, 60, and 90 days while undergoing either vacuum (V) or nonvacuum (NV) treatment. At 90 days, analysis of the microbial community by high-throughput sequencing was performed, and contents of aflatoxin B1 and deoxynivalenol (DON) mycotoxins in alfalfa silage were determined. In all inoculated alfalfa silage, irrespective of V or NV treatment, lactic acid (LA) content increased, pH (p < 0.05), and ammonia nitrogen (p < 0.05) content decreased, and no butyric acid was detected. Lactobacillus or Pediococcus became the dominant genus, and the abundance of Garciella decreased in alfalfa silage with the addition of either inoculant. The LAB inoculants YX and ZZUA493 helped reduce the mycotoxin content in alfalfa silage. The abundance of Garciella in the control and DON content in all alfalfa silage groups were higher (p < 0.05) in NV than V. In summary, LAB inoculants and vacuuming had a positive influence on alfalfa silage quality, and LAB inoculants were effective in reducing mycotoxins in silage alfalfa.

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“…In the study, the aerobic stability of NFI silages was improved by the application of LB and LBLP as compared with C of NFI silages. Kung, et al [17] also found that inoculant containing L. buchneri could extend the aerobic stability of silages challenged with air stress, which was attributed to the antifungal property of AcA produced by L. buchneri. Romero, et al [45] reported that applying a combination inoculant of L. buchneri and Pediococcus pentosaceus increased the AcA concentration and decreased yeasts and molds in corn silages, which in turn indirectly extended the aerobic stability.…”

Section: Effect Of Inoculants and Fungal Infection On Aerobic Stabili...mentioning

confidence: 97%

Effects of bacterial inoculants on microbial community, mycotoxin contamination, and aerobic stability of corn silage infected in field by toxigenic fungi during aerobic exposure

Wang

Shao

et al. 2022

Preprint

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This study was aimed to evaluate the effects of inoculants on the microbial community and mycotoxins contamination during aerobic exposure of corn silage. Whole-crop corn infected with or without mycotoxigenic fungi were ensiled with Lactobacillus buchneri (LB, 1.0×106 cfu g− 1 fresh weight (FW)), Lactobacillus plantarum (LP, 1.0×106 cfu g− 1 FW), or LBLP at 1.0× 106 cfu g− 1 FW each. The higher concentration of AcA (P < 0.05) in LB and LBLP silages than C and LP of NFI silages. Fungal infection resulted in a larger increase of zearalenone (ZEN, P = 0.01), fumonisin B1 (FUB1, P = 0.02), and fumonisin B2 (FUB2, P = 0.02). The RA of Issatchenkia in NFI was higher (P < 0.001) than FI silages, whereas the RA of Kazachstania (P < 0.001), Zygosaccharomyces (P = 0.047), and Candida (P = 0.025) in NFI were lower than these of FI silages. The aerobic stability was improved by the application of LB and LBLP as compared with C of NFI silages. The LB and LBLP had the potential to improve aerobic stability and alleviate mycotoxins contamination of non-fungal infected corn silages, but did not mitigate the negative effect of fungal infection in corn silages.

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The effects of air stress during storage and low packing density on the fermentation and aerobic stability of corn silage inoculated with Lactobacillus buchneri 40788

Cited by 22 publications

References 48 publications

Altitudinal Distribution Patterns of Phyllosphere Microbial Communities and Their Contribution to Silage Fermentation of Kobresia pygmaea Along the Elevation Gradient on the Tibetan Plateau

Altitudinal Distribution Patterns of Phyllosphere Microbial Communities and Their Contribution to Silage Fermentation of Kobresia pygmaea Along the Elevation Gradient on the Tibetan Plateau

Effects of Lactic Acid Bacterial Inoculants on Fermentation Quality, Bacterial Community, and Mycotoxins of Alfalfa Silage under Vacuum or Nonvacuum Treatment

Effects of bacterial inoculants on microbial community, mycotoxin contamination, and aerobic stability of corn silage infected in field by toxigenic fungi during aerobic exposure

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