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Lynch BA, Ribeiro GO, Mutsvangwa T, Penner GB. Severity of Rolling Reconstituted High Moisture Barley on Ensiling Characteristics and In Vitro Ruminal Fermentation. J Dairy Sci 2024:S0022-0302(24)01100-7. [PMID: 39218065 DOI: 10.3168/jds.2024-25069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Accepted: 07/29/2024] [Indexed: 09/04/2024]
Abstract
Barley grain sources with variable kernel sizes makes adequate and consistent processing of kernels challenging. This study evaluated how the severity of processing for reconstituted high moisture (65% on DM basis) barley (RHB) affects ensiling characteristics and in vitro ruminal fermentation. Three independent sources of light (<630 g/500 mL) and heavy (>670 g/500 mL) barley were blended to create 4 sources of variable kernel sized barley (646 g/500 mL). Reconstituted barley was rolled through a roller gap width of 1.40 (RHBF), 1.86 (RHBM), or 2.31 mm (RHBC) and ensiled for 1 or 5 mo with dry rolled barley (DRB; roller gap width 1.86 mm) used as a control. The 1-mo RHB and the DRB were further evaluated using the artificial rumen technique (RUSITEC) to investigate the effects of severity of processing for RHB on ruminal fermentation, and gas, methane, and microbial protein production. Using a randomized complete block design (n = 4), 16 fermenters from 2 RUSITEC apparatuses were used to assess the 4 sources and 4 processing treatments. The addition of water increased kernel width before rolling and resulted in increased kernel length, width, and thickness for RHB relative to dry rolled barley. Increasing processing severity for RHB linearly increased kernel width. The percentage of fine particles (<1.18 mm) was greater for DRB than RHBF, but did not differ by processing severity for RHB. Dry matter, organic matter, and starch disappearance were not different between DRB and RHBF, but linearly increased with increasing processing severity for RHB. Fermenter pH tended to be less for DRB relative to RHBF. In conclusion, the reduction in fine particles with the addition of water for RHB may prevent a decline in fermenter pH and when processed to achieve the same PI using a smaller roller gap width, yielded similar DM and OM disappearance suggesting a lesser risk for low ruminal pH without compromising digestibility.
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Affiliation(s)
- Beverly A Lynch
- Department of Animal and Poultry Science, University of Saskatchewan, Saskatoon, SK, S7N 5A8, Canada
| | - Gabriel O Ribeiro
- Department of Animal and Poultry Science, University of Saskatchewan, Saskatoon, SK, S7N 5A8, Canada
| | - Timothy Mutsvangwa
- Department of Animal and Poultry Science, University of Saskatchewan, Saskatoon, SK, S7N 5A8, Canada
| | - Gregory B Penner
- Department of Animal and Poultry Science, University of Saskatchewan, Saskatoon, SK, S7N 5A8, Canada.
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Wang Z, Tan Z, Wu G, Wang L, Qin G, Wang Y, Pang H. Investigation on Fermentation Characteristics and Microbial Communities of Wheat Straw Silage with Different Proportion Artemisia argyi. Toxins (Basel) 2023; 15:toxins15050330. [PMID: 37235364 DOI: 10.3390/toxins15050330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/20/2023] [Accepted: 05/02/2023] [Indexed: 05/28/2023] Open
Abstract
Mycotoxins, secondary metabolites of fungi, are a major obstacle to the utilization of animal feed for various reasons. Wheat straw (WS) is hollow, and miscellaneous bacteria can easy attach to its surface; the secondary fermentation frequency after silage is high, and there is a risk of mycotoxin poisoning. In this study, a storage fermentation process was used to preserve and enhance fermentation quality in WS through the addition of Artemisia argyi (AA), which is an effective method to use WS resources and enhance aerobic stability. The storage fermentation of WS treated with AA had lower pH and mycotoxin (AFB1 and DON) values than the control due to rapid changes in microbial counts, especially in the 60% AA groups. Meanwhile, the addition of 60% AA improved anaerobic fermentation profiles, showing higher lactic acid contents, leading to increased efficiency of lactic acid fermentation. A background microbial dynamic study indicated that the addition of 60% AA improved the fermentation and aerobic exposure processes, decreased microbial richness, enriched Lactobacillus abundance, and reduced Enterobacter and Aspergillus abundances. In conclusion, 60% AA treatment could improve the quality by increase fermentation quality and improve the aerobic stability of WS silage by enhancing the dominance of desirable Lactobacillus, inhibiting the growth of undesirable microorganisms, especially fungi, and reducing the content of mycotoxins.
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Affiliation(s)
- Zhenyu Wang
- Henan Key Laboratory Ion Beam Bioengineering, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450052, China
| | - Zhongfang Tan
- Henan Key Laboratory Ion Beam Bioengineering, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450052, China
| | - Guofang Wu
- Plateau Livestock Genetic Resources Protection and Innovative Utilization Key Laboratory of Qinghai Province, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Qinghai Academy of Animal and Veterinary Medicine, Qinghai University, Xining 810016, China
| | - Lei Wang
- Plateau Livestock Genetic Resources Protection and Innovative Utilization Key Laboratory of Qinghai Province, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Qinghai Academy of Animal and Veterinary Medicine, Qinghai University, Xining 810016, China
| | - Guangyong Qin
- Henan Key Laboratory Ion Beam Bioengineering, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450052, China
| | - Yanping Wang
- Henan Key Laboratory Ion Beam Bioengineering, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450052, China
| | - Huili Pang
- Henan Key Laboratory Ion Beam Bioengineering, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450052, China
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Krueger LA, Koester LR, Jones DF, Spangler DA. Carbon dioxide equivalent emissions from corn silage fermentation. Front Microbiol 2023; 13:1092315. [PMID: 36699579 PMCID: PMC9869070 DOI: 10.3389/fmicb.2022.1092315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/06/2022] [Indexed: 01/12/2023] Open
Abstract
The European Climate Law recently codified the goal for European climate neutrality by 2050, highlighting the need for sustainable farming practices within a robust and transparent carbon dioxide equivalent (CO2e) accounting system. In the present study, a series of equations were proposed for the estimation of CO2e emissions from corn silage fermentation. Systematic review of previous meta-analyses of corn silage fermentation identified the mean and standard deviation statistics for key model inputs of acetic acid, ethanol, lactic acid, ammonia, and volatile-corrected dry matter loss. Estimates of CO2e emissions were determined for a mock dataset comprising 1,000 iterations of randomly-generated values for each metric in accordance with mean and variance statistics of the source data. Estimates for CO2e emissions of corn silage based on meta-analysis review of laboratory experiments were 1.9 ± 5.6% (GWP20) and 0.2 ± 5.5% (GWP100) of silage dry matter. Furthermore, model results demonstrated a precedent for CO2 recycling by silage microorganisms, which was supported by genome annotation of strains belonging to common silage species. Linear model equations for GWP20 and GWP100 with inputs and outputs in mg kg-1 silage dry matter were developed, where inputs are acetic acid (A), ethanol (E), lactic acid (L), and volatile corrected dry matter loss (DV). Linear equations are (for GWP20; Eq. 11): GWP 20 = - 3626.1 - 0.04343 A + 0.8011 E - 0.03173 L + 1.46573 D V and for GWP100; Eq. 12: GWP 100 = - 8526.10 - 0.22403 A - 0.11963 E - 0.03173 L + 1.46573 D V . .
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Affiliation(s)
- Lucas A Krueger
- Department of Research, Development, and Biotechnology, Agri-King, Inc., Fulton, IL, United States
| | - Lucas R Koester
- Department of Research, Development, and Biotechnology, Agri-King, Inc., Fulton, IL, United States
| | - David F Jones
- Department of Research, Development, and Biotechnology, Agri-King, Inc., Fulton, IL, United States
| | - David A Spangler
- Department of Research, Development, and Biotechnology, Agri-King, Inc., Fulton, IL, United States
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Bragatto J, Parra C, Filho FP, Silva S, Osorio J, Buttow S, Santos G, Jobim C, Nussio L, Daniel J. Effect of dietary isopropanol on the performance and milk quality of dairy cows. Anim Feed Sci Technol 2022. [DOI: 10.1016/j.anifeedsci.2022.115254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Addition of Lactic Acid Bacteria Can Promote the Quality and Feeding Value of Broussonetia papyrifera (Paper Mulberry) Silage. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8010025] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In this study, the influence of two lactic acid bacteria (LAB) strains [Lactobacillus rhamnosus BDy (LR-BDy) and Lactobacillus buchneri TSy (LB-TSy)] selected from Southwest China on the fermentation characteristics and in vitro gas production of Broussonetia papyrifera (paper mulberry) silage were experimentally explored. The experimental groups were a control group (C), an LB-TSy treatment (LB), an LR-BDy treatment (LR), and an LR-BDy + LB-TSy hybrid group (LR × LB). After the LAB were added, the pH value of paper mulberry silage significantly declined (p < 0.05), and the crude protein content was effectively preserved (p < 0.05). However, no significant changes were found in the levels of neutral detergent fiber, acid detergent fiber, and crude ash (p > 0.05). The lactic acid content in paper mulberry silage was evidently increased (p < 0.05). The in vitro gas production in the LR at 36, 48, and 72 h were markedly higher than that in the other treatments (p < 0.05). Owing to the addition of LAB, the microbial diversity in paper mulberry silage was reduced, while the relative bacterial abundance of Lactobacillus was enhanced. Hence, the addition of LAB selected from the warm and humid region in Southwest China can improve the quality of paper mulberry silage and elevate its feeding value in this region.
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Prognostic capacity assessment of a multiparameter risk score for aerobic stability of maize silage undergoing heterofermentative inoculation (Lactobacillus buchneri) in variable ensiling conditions. Anim Feed Sci Technol 2021. [DOI: 10.1016/j.anifeedsci.2021.115116] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Monllor P, Romero G, Muelas R, Sandoval-Castro CA, Sendra E, Díaz JR. Ensiling Process in Commercial Bales of Horticultural By-products from Artichoke and Broccoli. Animals (Basel) 2020; 10:ani10050831. [PMID: 32403309 PMCID: PMC7278401 DOI: 10.3390/ani10050831] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/07/2020] [Accepted: 05/08/2020] [Indexed: 11/18/2022] Open
Abstract
Simple Summary Artichoke and broccoli crops are widespread throughout the world, mainly in the Mediterranean region. After artichoke harvests and industrial processing of artichoke and broccoli, large amounts of by-products are generated. The use of these alternative and cheaper feedstuffs in ruminants’ diets would reduce waste caused by the agri-food industry, disposal costs, and the land and natural resources used in animal feed production, contributing to the circular economy. Because of the high water content and the seasonality of these feedstuffs, ensiling might be a technology to preserve its nutritional quality for a long time, and this must be considered and studied at commercial scale. This paper looks into the viability of ensiling broccoli and artichoke by-products as commercial round bale silos (300 kg), their shelf life, and their suitability for ruminant feeding. The three silage by-products are stabilised on day 30. The high microbial quality and the appropriate nutritional composition at final stage (day 200) make them suitable for inclusion in ruminant diet, in combination with other energy and protein sources over a long period after the crop season. Abstract Wastes from artichoke and broccoli crops and cannery industries represent an environmental problem. A viable option to this problem is ensiling them for use as ruminants feed. The aim of this study was to characterise the ensiling process of broccoli and artichoke by-products and assess their suitability to be part of the ruminant diet, as well their minimum shelf life. Twenty-one commercial round bale silos (300 kg and 0.64 m3) of each by-product were made. Samples were analysed at days 0, 7, 15, 30, 60, and 200 to determine microbial populations, fermentation metabolites, nutritional components, and phytosanitary residues. Feedstuffs showed good suitability for ensiling, and stabilisation was achieved on day 30. The variables with the greatest significant differences among sampling times were microbial populations and fermentative components. There were no important dry matter losses, and some significant differences were observed in the nutritional composition, especially in crude protein and fibrous fractions, but they were not relevant for the loss of nutritional quality of silages. The phytosanitary residues determined on day 200 were below the maximum residue limits set by European legislation. So, ensiling these by-products in commercial round bale silos is a suitable and profitable technique that allows their preservation for a long time (200 days).
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Affiliation(s)
- Paula Monllor
- Departamento de Tecnología Agroalimentaria, Universidad Miguel Hernández de Elche, 03312 Alicante, Spain; (P.M.); (G.R.); (R.M.); (E.S.)
| | - Gema Romero
- Departamento de Tecnología Agroalimentaria, Universidad Miguel Hernández de Elche, 03312 Alicante, Spain; (P.M.); (G.R.); (R.M.); (E.S.)
| | - Raquel Muelas
- Departamento de Tecnología Agroalimentaria, Universidad Miguel Hernández de Elche, 03312 Alicante, Spain; (P.M.); (G.R.); (R.M.); (E.S.)
| | - Carlos A. Sandoval-Castro
- Facultad de Veterinaria, Medicina y Ciencia Animal, Universidad Autónoma de Yucatán, Mérida 97100, Mexico;
| | - Esther Sendra
- Departamento de Tecnología Agroalimentaria, Universidad Miguel Hernández de Elche, 03312 Alicante, Spain; (P.M.); (G.R.); (R.M.); (E.S.)
| | - José Ramón Díaz
- Departamento de Tecnología Agroalimentaria, Universidad Miguel Hernández de Elche, 03312 Alicante, Spain; (P.M.); (G.R.); (R.M.); (E.S.)
- Correspondence: ; Tel.: +34-966-749-707
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Comments on two publications which examined underlay films commonly used on silage piles. Anim Feed Sci Technol 2019. [DOI: 10.1016/j.anifeedsci.2019.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Szumacher-Strabel M, Stochmal A, Cieslak A, Kozłowska M, Kuznicki D, Kowalczyk M, Oleszek W. Structural and quantitative changes of saponins in fresh alfalfa compared to alfalfa silage. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:2243-2250. [PMID: 30324694 DOI: 10.1002/jsfa.9419] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 09/18/2018] [Accepted: 10/10/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Alfalfa (Medicago sativa) is an important legume used in animal feed. The primary objective of the present study was to analyze and trace the individual saponins in fresh and ensiled alfalfa of ten varieties, with the aim of evaluating the structural changes that saponins undergo during ensiling. A secondary objective was to examine whether any of the changes in saponin content were associated with changes in the basic nutrient composition of the ensiled alfalfa. RESULTS The total saponin concentration increased when the fresh alfalfa was processed into silage. Three of the zanhic acid glycosides were degraded substantially, whereas the other two increased in all the tested varieties. Five of the seven medicagenic acid glycosides were not changed, whereas the remaining saponins completely disappeared. Finally, two glycosides of soyasapogenol B displayed an inverse relationship to each other. CONCLUSION The nutrient content of fresh material and silages remained relatively constant, with some variations in the crude protein content of the selected alfalfa varieties. The total concentration of saponins increased two- to three-fold after ensilation over the levels present in fresh alfalfa material. The increases in saponin concentration showed a negative linear relationship between protein on a dry matter basis and saponin content. These findings are significant because no known published data have shown this transformation in the ensiling of alfalfa. © 2018 Society of Chemical Industry.
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Affiliation(s)
| | - Anna Stochmal
- Department of Biochemistry and Crop Quality, Institute of Soil Science and Plant Cultivation, Pulawy, Poland
| | - Adam Cieslak
- Department of Animal Nutrition, Poznan University of Life Sciences, Poznan, Poland
| | - Martyna Kozłowska
- Department of Animal Nutrition, Poznan University of Life Sciences, Poznan, Poland
| | - Dawid Kuznicki
- Department of Animal Nutrition, Poznan University of Life Sciences, Poznan, Poland
| | - Mariusz Kowalczyk
- Department of Biochemistry and Crop Quality, Institute of Soil Science and Plant Cultivation, Pulawy, Poland
| | - Wieslaw Oleszek
- Department of Biochemistry and Crop Quality, Institute of Soil Science and Plant Cultivation, Pulawy, Poland
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Wen A, Yuan X, Wang J, Desta ST, Shao T. Effects of four short-chain fatty acids or salts on dynamics of fermentation and microbial characteristics of alfalfa silage. Anim Feed Sci Technol 2017. [DOI: 10.1016/j.anifeedsci.2016.11.017] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Robinson PH, Swanepoel N, Heguy JM, Price P, Meyer DM. Total 'shrink' losses, and where they occur, in commercially sized silage piles constructed from immature and mature cereal crops. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 559:45-52. [PMID: 27054492 DOI: 10.1016/j.scitotenv.2016.03.103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 03/15/2016] [Accepted: 03/15/2016] [Indexed: 06/05/2023]
Abstract
Silage 'shrink' (i.e., fresh chop crop lost between ensiling and feedout) represents losses of potential animal nutrients which degrade air quality as volatile carbon compounds. Regulatory efforts have, in some cases, resulted in semi-mandatory mitigations (i.e., dairy farmers select a minimum number of mitigations from a list) to reduce silage shrink, mitigations often based on limited data of questionable relevance to large commercial silage piles where silage shrink may or may not be a problem of a magnitude equal to that assumed. Silage 'shrink' is generally ill defined, but can be expressed as losses of wet weight (WW), oven dry matter (oDM), and oDM corrected for volatiles lost during oven drying (vcoDM). As no research has documented shrink in large cereal silage piles, 6 piles ranging from 1456 to 6297tonnes (as built) were used. Three used cereal cut at an immature stage and three at a mature stage. Physiologically immature silages had generally higher (P<0.01) levels of total volatile fatty acids (especially acetic acid; P=0.01) and total alcohols (P<0.01) than did physiologically mature crops, suggesting higher carbon compound volatilization potential from immature silages. However expressed as WW, oDM and vcoDM, total shrink (as well as from where in the piles it occurred) was little impacted by crop maturity, and whole pile vcoDM shrink was only ~35g/kg. Overall, real shrink losses (vcoDM) of large well managed cereal silage piles were relatively low, and a lower potential contributor to aerosol emissions of volatile carbon compounds than has often been assumed. Losses from the silage mass and the exposed silage face were approximately equal contributors to vcoDM shrink. Mitigations to reduce these relatively low emission levels of volatile organic compounds from cereal silage piles should focus on the ensiled mass and the exposed silage face.
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Affiliation(s)
- P H Robinson
- Department of Animal Science, University of California, Davis, CA 95616, USA
| | - N Swanepoel
- Department of Animal Science, University of California, Davis, CA 95616, USA
| | - J M Heguy
- UCCE Stanislaus, San Joaquin & Merced Counties, University of California, Davis, CA 95616, USA
| | - P Price
- Department of Animal Science, University of California, Davis, CA 95616, USA
| | - D M Meyer
- Department of Animal Science, University of California, Davis, CA 95616, USA
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