Sorghum silage quality as determined by chemical–nutritional factors

Rodrigues, Paulo Henrique Mazza; Pinedo, Lerner Arévalo; Meyer, Paula Marques; Silva, Thiago Henrique da; Guimarães, Iuli Caetano da Silva Brandão

doi:10.1111/gfs.12495

Cited by 11 publications

(7 citation statements)

References 41 publications

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“…The average CP content obtained for the silages studied is consistent with values reported by other authors for S. bicolor and S. bicolor × S. sudanense types (Herrmann et al, 2011; Mahmood et al, 2013; Rodrigues et al, 2020). This parameter was significantly affected by the sorghum type for the Marquardt variants.…”

Section: Discussionsupporting

confidence: 90%

“…In relation to these findings, S. bicolor types at HD2 presented the best conditions as a pre‐ensiled material for both sites and years, with WSC contents reaching 11%DM in some cases. Rodrigues et al (2020) reported a similar WSC average (10.7%DM) for S. bicolor types. McDonald et al (1991) reported that the optimum nitrate content is in the range of 0.6%–1.0%TS, and the results for fresh materials were in all cases below this range.…”

Section: Discussionmentioning

confidence: 68%

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Effects of sorghum biomass quality on ensilability and methane yield

et al. 2021

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Sorghum is currently being introduced in the temperate regions of Europe. It is characterized by good digestibility and high biomass yields, which make it a useful crop for anaerobic digestion. In this study, six commercial sorghum varieties comprising four different cultivars of Sorghum bicolor L. Moench and two interspecific sorghum hybrids (Sorghum sudanense L. × S. bicolor L. Moench) were harvested on two different dates during the years 2016 and 2017 at two diverse soil‐climate sites in Germany. The fresh harvested material and silages were analyzed to examine the ensilability of the different varieties with contrasting maturity characteristics. Subsequently, methane production experiments were performed to determine the specific methane yield (SMY) of the samples. The sorghum fresh matter (FM) varied among the sorghum types, including the parameters total solids (TS; 22.69%–46.93%FM), water‐soluble carbohydrates (2.68%–11.38%TS), and nitrates (0%–0.35%TS). The excellent ensiling ability of all the sorghum types analyzed was confirmed by evaluating the fermentation profile (pH range of 3.7–4.6; dominant presence of lactic acid [LA]; acetic acid [AA] in the range of 0.70%–2.38%TS; insignificant amount of butyric acid). The SMY ranged between 231.25 and 321.31 Ln kg−1 VS and tended to decrease with the increasing harvest time and maturity. LA and AA were positively correlated with the SMY, while the neutral detergent fiber content was negatively correlated with it. The SMY—a key parameter reflecting the crop biomass quality for biogas production—was slightly higher for S. bicolor than for the sorghum hybrids. However, the results of this study confirmed that if the final purpose is biomethanation, the ensilability of different sorghum types imposes no restriction. Furthermore, different sorghum types offer a wide harvest window, which can be useful for cropping schemes, ensiling, and methane production.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 68%

Effects of sorghum biomass quality on ensilability and methane yield

et al. 2021

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“…Regarding the potential of improvement of the in vitro dry matter digestibility, the key importance of the cell wall digestibility, that exhibits a larger genetic variance than IVDMD, and that depends of the composition of the cell wall (as also reported by Rodrigues et al, (2020)) but also of the spatial distribution of the tissues and of the cell wall components at the internode level was reported. These results are consistent with the ones reported in maize (El Hage et al, 2018; Legland et al, 2017) and advocate for the development of higher throughput histological methods to facilitate breeding efforts.…”

Section: Discussionmentioning

confidence: 67%

Mobilizing sorghum genetic diversity: Biochemical and histological‐assisted design of a stem ideotype for biomethane production

et al. 2021

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Sorghum currently contributes to the species portfolio that is supporting bioenergy production including anaerobic digestion. Although agro‐morphological ideotypes maximizing biogas production have been recently proposed, there is a crucial need to refine our understanding of the impacts of the stem composition and structure on this processing trait in order to ensure genetic gains in the mid to long terms. This study aims to assess the potential of Sorghum bicolor ssp bicolor stem genetic diversity to maximize genetic gains for biogas production and define a biogas stem ideotype. In this context, a panel of 57 genotypes, encompassing most of the stem composition variability available in cultivated sorghum, was characterized over five sites. Simultaneous histological and biochemical characterizations were performed. A high broad sense heritability associated with a moderate genetic variability was detected for stem biogas potential ensuring significant genetic gains in the future. In addition, the development of a stem histological phenotyping pipeline made it possible to describe the genetic diversity available for the internode anatomy and the repartition of key cell wall components. Consistently with previous studies, moderate to high heritability was observed for stem biochemical components. Genetic correlation, hierarchical clustering, and multiple stepwise regression analyses identified soluble sugar content as the first main driver of biogas potential genetic variability. Nevertheless, breeding programs should anticipate that biogas yield improvement will also rely on the monitoring of the cell wall components and their distribution in the stem jointly with the soluble sugar content. According to the assets of sorghum in terms of adaptation to environmental stresses and the present results regarding the identification of stem ideotypes suitable for different value chains, this species will surely play a key role to optimize the economic and environmental sustainability of the agrosystems that are currently facing the effects of climate change.

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“…An increase in LA of silage indicates an increase in SCHO concentrations in sorghum mixed with PP. Rodrigues et al (2020) estimated that each percentage unit of SCHO in sorghum DM raised 0.37 units of LA in silage DM until a plateau of 8.42% of LA was obtained with 12.54% of SCHO, which coincides with pH stabilization at ~3.62. With a mixed silage, the average pH (3.60) was close to the maximum pH reduction proposed by Rodrigues et al (2020).…”

Section: Resultsmentioning

confidence: 98%

Effect of pineapple peel addition on sorghum ensilage

Chacon,

Araujo,

Pinedo

et al. 2024

SA J. An. Sci.

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Silage mixed with forage and byproducts is an alternative nutritional strategy for ruminant production. This study aimed to characterize chemical–nutritional aspects, fermentative profile, and digestibility of sorghum (Sorghum bicolor L. Moench) silage with different contents of pineapple (Ananas comosus L. Merr.) peel inclusion at 0%, 20%, 40%, 60%, or 80% of fresh matter. The experimental design was completely randomized with five replicates per treatment. Mixed feeds were ensiled in experimental silos for 65 days, subsequently opened, and samples were analysed. The increase in the proportions of pineapple peel caused a linear increase in dry matter, crude protein, mineral matter, ether extract, soluble carbohydrate, cellulose, lignin, and in vitro digestibility of dry matter in sorghum silage. The mean concentrations of neutral detergent fibre (NDF) and acid detergent fibre (ADF) had a negative quadratic relationship with the inclusion of pineapple peel, reducing from 0% to 40% (-2.56% for NDF and -3.14% for ADF) followed by stabilization at subsequent contents. Silage pH was not influenced, however, acetic and propionic acids increased linearly, while butyric acid decreased linearly with pineapple peel inclusion. The highest losses in gases and effluents were obtained in silage with 0% pineapple peel inclusion (1.77% of dry matter and 4.06 kg t-1 of dry matter), which resulted in lower dry matter recovery (93.56%). Adding pineapple peel to sorghum benefits composition, fermentation, in vitro digestibility, and decreases silage losses. An inclusion of 40–80% sorghum can be recommended.

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Sorghum silage quality as determined by chemical–nutritional factors

Cited by 11 publications

References 41 publications

Effects of sorghum biomass quality on ensilability and methane yield

Effects of sorghum biomass quality on ensilability and methane yield

Mobilizing sorghum genetic diversity: Biochemical and histological‐assisted design of a stem ideotype for biomethane production

Effect of pineapple peel addition on sorghum ensilage

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