Effects of different additives on fermentation quality and aerobic stability of <i>Leymus chinensis</i> silage

Zhang, Q.; Yu, Zhu; Na, R. S.

doi:10.1111/gfs.12301

Cited by 22 publications

(32 citation statements)

References 39 publications

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“…Adding FA as an acid to silage directly reduces the pH of the silage, whereas adding LP increases the number of LAB, which then produce more lactic acid and thus lower the pH. This finding has been verified in other studies [ 31 ]. WSCs are considered to be important substrates for LAB growth during proper fermentation, and WSC is consumed continuously as fermentation proceeds.…”

Section: Discussionsupporting

confidence: 69%

Effects of formic acid and lactic acid bacteria inoculant on main summer crop silages in Korea

Wei¹,

Li²,

Jeong³

et al. 2021

J Anim Sci Technol

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To improve the fermentation quality of silage and reduce the nutrients loss of raw materials during the ensiling process, silage additives are widely used. The effect of additives on silage is also affected by the species of crop. Therefore, this study was designed to explore the effects of formic acid (FA) and lactic acid bacterial inoculant on the quality of main summer crop silage. The experiment was consisted on split-plot design with three replications. The experiment used the main summer forage crops of proso millet (“Geumsilchal”), silage corn (“Gwangpyeongok”), and a sorghum-sudangrass hybrid (“Turbo-gold”). Treatments included silage with Lactic acid bacterial Inoculant ( Lactobacillus plantarum [LP], 1.0 × 10 6 CFU/g fresh matter), with FA (98%, 5 mL/kg), and a control (C, without additive). All silages were stored for 60 days after preparation. All additives significantly increased the crude protein content and in vitro dry matter digestibility (IVDMD) of the silages and also reduced the content of ammonia nitrogen (NH 3 -N) and pH. Corn had the highest content of IVDMD, total digestible nutrients and relative feed value among silages. Compared with the control, irrespective of whether FA or LP was added, the water soluble carbohydrate (WSC) of three crops was largely preserved and the WSC content in the proso millet treated with FA was the highest. The treatment of LP significantly increased the lactic acid content of the all silage, while the use of FA significantly increased the content of acetic acid ( p < 0.05). The highest count of lactic acid bacteria (LAB) was detected in the LP treatment of corn. In all FA treatment groups, the total microorganism and mold numbers were significantly lower than those of the control and LP groups ( p < 0.05). In conclusion, both additives improved the fermentation quality and nutritional composition of the main summer forage crops. The application of FA effectively inhibited the fermentation of the three crops, whereas LAB promoted fermentation. So, both FA and LP can improve the quality of various species of silage.

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Section: Discussionsupporting

confidence: 69%

Effects of formic acid and lactic acid bacteria inoculant on main summer crop silages in Korea

Wei¹,

Li²,

Jeong³

et al. 2021

J Anim Sci Technol

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“…The sharp decline of LA after 30 days could be explained by LA being converted to AA by heterofermentative lactic bacteria at the later stage of fermentation [15]. Heterofermentative LAB strains can degrade LA into several metabolites, mainly AA [18]. Differently, the pH values of L and M silages tended to increase after 15 days of ensiling.…”

Section: Discussionmentioning

confidence: 99%

Effects of lactic acid bacteria and molasses on fermentation dynamics, structural and nonstructural carbohydrate composition and in vitro ruminal fermentation of rice straw silage

Zhao

Dong

et al. 2019

Asian-Australas J Anim Sci

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Objective This study was to evaluate the fermentation dynamics, structural and nonstructural carbohydrate composition and in vitro gas production of rice straw ensiled with lactic acid bacteria and molasses. Methods Fresh rice straw was ensiled in 1-L laboratory silos with no additive control (C), Lactobacillus plantarum (L), molasses (M) and molasses+ Lactobacillus plantarum (ML) for 6, 15, 30, and 60 days. After storage, the silages were subjected to microbial and chemical analyses as well as the further in vitro fermentation trial. Results All additives increased lactic acid concentration, and reduced pH, dry matter (DM) loss and structural carbohydrate content relative to the control (p<0.05). The highest organic acid and residual sugar contents and lignocellulose reduction were observed in ML silage. L silage had the highest V-score with 88.10 followed by ML silage. L and ML silage improved in vitro DM digestibility as compared with other treatments, while in vitro neutral detergent fibre degradability (IVNDFD) was increased in M and ML silage (p<0.05). M silage significantly (p<0.05) increased propionic acid (PA) content and decreased butyric acid content and acetic acid/PA as well as 72-h cumulative gas production. Conclusion The application of ML was effective for improving both the fermentation quality and in vitro digestibility of rice straw silage. Inclusion with molasses to rice straw could reduce in vitro ruminal gas production.

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“…Potassium sorbate (PS) is a typical inexpensive preservative. The efficiency of PS in silage preservation has also been demonstrated for a variety of crops, such as fescue, Leymus chinensis, and corn [11][12][13]. Therefore, PS can be a potential antiseptic factor for the TMR silage bale.…”

Section: Introductionmentioning

confidence: 99%

Effects of the Application of Lactobacillus plantarum Inoculant and Potassium Sorbate on the Fermentation Quality, In Vitro Digestibility and Aerobic Stability of Total Mixed Ration Silage Based on Alfalfa Silage

Xie

et al. 2020

Animals

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This study aimed to evaluate the effect of the application of an inoculant and a preservative on the fermentation quality, in vitro digestibility, and aerobic stability of alfalfa silage-based fermented total mixed ration (TMR). The TMR was ensiled with (1) no additives (control), (2) Lactobacillus plantarum (LP), or (3) potassium sorbate (PS). The V-scores of all silages were higher than 80 points during the 30 days of ensiling. The addition of LP and PS had no effects on the in vitro parameters, such as in vitro digestibility and in vitro gas production (p > 0.05). LP-treated silage showed similar fermentation quality and comparable aerobic stability to the control (110 h). The LP only decreased the ammonia nitrogen (NH3-N) content (p < 0.05) during ensiling. The PS significantly increased the pH of TMR silages (p < 0.05). Meanwhile, the addition of PS improved the aerobic stability (>162 h) of TMR silage, indicated by the higher water-soluble carbohydrate content and lower NH3-N content in comparison with those in the control after aerobic exposure (p < 0.05). The improvement in fermentation quality is extremely small in terms of applying LP in TMR silage based on a large percentage of other silage ingredients. The PS is effective in conserving unpacked TMR silage and showed the potential to reduce the risk of ruminal acidosis in livestock.

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Effects of different additives on fermentation quality and aerobic stability of Leymus chinensis silage

Cited by 22 publications

References 39 publications

Effects of formic acid and lactic acid bacteria inoculant on main summer crop silages in Korea

Effects of formic acid and lactic acid bacteria inoculant on main summer crop silages in Korea

Effects of lactic acid bacteria and molasses on fermentation dynamics, structural and nonstructural carbohydrate composition and in vitro ruminal fermentation of rice straw silage

Effects of the Application of Lactobacillus plantarum Inoculant and Potassium Sorbate on the Fermentation Quality, In Vitro Digestibility and Aerobic Stability of Total Mixed Ration Silage Based on Alfalfa Silage

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