Meta-analysis of the effects of silage additives on high-moisture grain silage quality and performance of dairy cows

Torres, Rodrigo de Nazaré Santos; Ghedini, Caren Paludo; Coelho, L.M.; Júnior, Guimarães; Almeida, Márco Túlio Costa

doi:10.1016/j.livsci.2021.104618

Cited by 6 publications

(12 citation statements)

References 34 publications

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Section: Feed Intake and Nutrient Digestionmentioning

confidence: 71%

“…The lack of effect of the barley grain preservation method on feed intake is in line with the production trial [16] and a meta-analysis [8] where dry and high moisture cereals were compared. However, the significant reduction of diet OM and starch digestion were contrary to earlier research, where improvements in digestibility have been observed due to crimping and ensiling of mainly corn grains [8,13]. One explanation for the reduced starch digestibility of EB could be unsuccessful breakage of some barley grain kernels, which may have resulted in passage of undigested kernels through the digestive tract.…”

Section: Feed Intake and Nutrient Digestionmentioning

confidence: 71%

“…Franco et al [6] demonstrated, in a pilot-scale ensiling experiment, that the same grass material treated with a homofermentative LAB inoculant contained 76 g water soluble carbohydrates (WSC) and 115 g lactic acid per kg DM compared with the respective concentrations of 195 and 2 g/kg DM for a silage treated with a commercial application level of a formic and propionic acid-based additive. Similar effects, although to a smaller extent, can be expected when dry and high-moisture ensiled grains are compared due to a partial conversion of carbohydrates to fermentation end products during preservation of moist grains [7][8][9]. Depending on the nature of substrates provided in the diet, different fermentation end products produced by the rumen microbes are provided to the host animal [10].…”

Section: Introductionmentioning

confidence: 93%

“…There is also increasing interest in high-moisture preservation of cereal grains with potential benefits in the nutritional value. Benefits in feed digestibility were observed in a meta-analyses by Ferraretto et al [13] and Torres et al [8] without major changes in milk production, while Huuskonen et al [14] reported increased growth performance of beef bulls receiving high moisture grains compared to dry grains. Further, high-moisture grain preservation can result in substantial economic savings compared to drying under humid harvesting conditions [15].…”

Section: Introductionmentioning

confidence: 96%

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The Effects of Grass Silage Additive Type and Barley Grain Preservation Method on Rumen Function, Microbial Ecology, and Energy Metabolism of Dairy Cows

Bayat,

Tapio,

Franco

et al. 2023

Dairy

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The effects of grass silage and barley grain preservation methods on dairy cows were evaluated using four Nordic Red dairy cows placed in respiration chambers in a 4 × 4 Latin square. Silage was conserved using a formic acid-based product (AS) or a homofermentative lactic acid bacteria inoculant (IS), while grains were dried (DB) or crimped and ensiled (EB). Fermentation profile of silages and the chemical composition of the mixed diets were very similar. The dietary treatments did not affect feed intake, milk production, and rumen fermentation except molar proportion of butyrate, and energy metabolism. Digestibility of dry matter and organic matter were higher (p < 0.05) and that of crude protein was lower (p < 0.05) for AS than IS. Feeding EB compared to DB decreased (p < 0.05) diet organic matter and starch digestibility. The cows receiving AS tended (p = 0.06) to emit more methane per day than those receiving IS, but methane yield and intensity were not different between dietary treatments. Bacteria alpha diversity was higher (p < 0.01) in barley samples than grass silages and was not affected by the diet in rumen samples. All freshly prepared rations were dominated by Lactobacillaceae, Erwiniaceae, and Pseudomonadaceae but rations based on AS than IS remained more stable over 2 days. In conclusion, grass silage and barley grain preservation methods did not affect the measured parameters in dairy cows and the preservation method can be selected based on practical on-farm factors.

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Section: Feed Intake and Nutrient Digestionmentioning

confidence: 71%

Section: Feed Intake and Nutrient Digestionmentioning

confidence: 71%

Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 96%

See 2 more Smart Citations

The Effects of Grass Silage Additive Type and Barley Grain Preservation Method on Rumen Function, Microbial Ecology, and Energy Metabolism of Dairy Cows

Bayat,

Tapio,

Franco

et al. 2023

Dairy

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“…High-moisture alfalfa inoculated with LAB promoted the growth of desirable LAB and reduced the abundance of unfavorable microorganisms such as Garciella and Anaerosporobacter [ 9 ]. However, Torres et al reported that applying microbial inoculants to high-moisture grain silage had no significant effect on silage quality [ 10 ]. The reason might be related to the fact that those silage additives are not specific to the characteristics of high-moisture silage fermentation.…”

Section: Introductionmentioning

confidence: 99%

The metabolome and bacterial composition of high-moisture Italian ryegrass silage inoculated with lactic acid bacteria during ensiling

Xia

Zhang

et al. 2023

Biotechnol Biofuels

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Background With its high nutritional value and productivity, Italian ryegrass as a biomass feedstock constantly supplies rumen degradable nitrogen and digestible fiber to ruminants. However, biofuel production is easily reduced during ensiling due to the high-moisture content of Italian ryegrass, leading to economic losses. Lactic acid bacteria inoculants could improve lignocellulosic degradation and fermentation quality and decrease dry matter loss during the bioprocessing of silage. Therefore, this study analyzed the effects of Lactobacillus buchneri TSy1-3 (HE), Lactobacillus rhamnosus BDy3-10 (HO), and the combination of HE and HO (M) on fermentation quality, bacterial community and metabolome in high-moisture Italian ryegrass silage during ensiling. Results The results showed that the pH value was significantly lower in the HO groups than in the other treatments at the end of ensiling, and the dry matter and acetic acid contents were significantly higher in the HO group than in the other inoculated groups. All inoculants decreased the diversity of the bacterial community and significantly increased the relative abundance of Lactobacillus. Inoculation with HO significantly improved the concentrations of organic acids, dipeptides, ferulic acid, apigenin, and laricitrin. Compared with Lactobacillus buchneri TSy1-3 (HE), HO significantly upregulated the flavonoid compounds in the flavone and flavonol biosynthesis pathway. Conclusions Overall, these findings suggest that inoculation with HO was beneficial for the development of Italian ryegrass as a biomass feedstock, improving fermentation quality, accelerating changes in bacterial community composition and increasing biofunctional metabolites in high-moisture Italian ryegrass silage.

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Effectiveness of enzymes and inoculants on biological pretreatment of different high dry matter lignocellulosic materials

Koç

Eser

Okuyucu

et al. 2021

Bioresource Technology Reports

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Meta-analysis of the effects of silage additives on high-moisture grain silage quality and performance of dairy cows

Cited by 6 publications

References 34 publications

The Effects of Grass Silage Additive Type and Barley Grain Preservation Method on Rumen Function, Microbial Ecology, and Energy Metabolism of Dairy Cows

The Effects of Grass Silage Additive Type and Barley Grain Preservation Method on Rumen Function, Microbial Ecology, and Energy Metabolism of Dairy Cows

The metabolome and bacterial composition of high-moisture Italian ryegrass silage inoculated with lactic acid bacteria during ensiling

Effectiveness of enzymes and inoculants on biological pretreatment of different high dry matter lignocellulosic materials

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