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Pu X, Zhang X, Yi S, Wang R, Li Q, Zhang W, Qu J, Huo J, Lin B, Tan B, Tan Z, Wang M. Mixed ensiling plus nitrate destroy fiber structure of rape straw, increase degradation, and reduce methanogenesis through in vitro ruminal fermentation. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:3428-3436. [PMID: 38109283 DOI: 10.1002/jsfa.13228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 12/10/2023] [Accepted: 12/14/2023] [Indexed: 12/20/2023]
Abstract
BACKGROUND Better utilization of rape straw can provide alternative strategies for sustainable ruminant and food production. The research reported here investigated changes in the carbohydrate composition of rape straw as a result of mixed ensiling with whole-crop corn or inoculated with nitrate, and the consequent effects on ruminal fermentation through in vitro batch culture. The three treatments included: rape straw and corn silage (RSTC), and ensiling treatment of rape straw with whole-crop corn (RSIC) or with calcium nitrate inoculation (RSICN). RESULTS Ensiling treatment of rape straw and whole-crop corn or plus nitrate enriched lactic acid bacteria and lactate. The treatments broke the fiber surface connections of rape straw, leading to higher neutral detergent soluble (NDS) content and lower fiber content. Ensiling treatments led to greater (P < 0.05) dry matter degradation (DMD), molar proportions of propionate and butyrate, relative abundance of the phylum Bacteroidetes and genus Prevotella, and lower (P < 0.05) methane production in terms of g kg-1 DMD, molar proportions of acetate, and lower acetate to propionate ratio than the RSTC treatment. The RSICN treatment led to the lowest (P < 0.05) hydrogen concentration and methane production among the three treatments. CONCLUSION Ensiling treatments of rape straw and whole-crop corn destroy the micro-structure of rape straw, promote substrate degradation by enriching the phylum Bacteroidetes and the genus Prevotella, and decrease methane production by favoring propionate and butyrate production. Nitrate inoculation in the ensiling treatment of rape straw and whole-crop corn further decreases methane production without influencing substrate degradation by providing an additional hydrogen sink. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Xuanxuan Pu
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
- Department of Animal Science and Technology, University of Hunan Agricultural University, Changsha, China
| | - Xiumin Zhang
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
| | - Siyu Yi
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
| | - Rong Wang
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
| | - Qiushuang Li
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
| | - Wanqian Zhang
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
| | - Jiajing Qu
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
| | - Jiabin Huo
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
| | - Bo Lin
- Department of Animal Science and Technology, University of Guangxi, Nanning, China
| | - Bie Tan
- Department of Animal Science and Technology, University of Hunan Agricultural University, Changsha, China
| | - Zhiliang Tan
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
| | - Min Wang
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
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Kamiya Y, Suzuki T, Oikawa K, Kobayashi H, Tohno M, Nakakubo R, Matoba M, Nemoto T, Minami K, Imamura G, Yoshikawa G. Effects of fermentative quality of corn silage on lactation, blood metabolites, and rumen fermentation in dairy cows. Anim Sci J 2023; 94:e13880. [PMID: 37818794 DOI: 10.1111/asj.13880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/08/2023] [Accepted: 09/15/2023] [Indexed: 10/13/2023]
Abstract
We investigated the effect of fermentation quality of corn silage on dry matter intake (DMI), milk yield, ruminal fermentation, methane (CH4 ) emissions, and plasma metabolites in lactating cows. Six lactating Holstein cows were used in a 2 × 2 crossover design with two dietary treatments containing high quality corn silage with lower pH (high group) or low quality corn silage with higher pH (low group). The cows were fed partial mixed ration (PMR containing 50%DM of each corn silage) ad libitum plus 0.7 kg/day of concentrates at milking. The DMI of cows in the low group (24.8 kg/day) tended to be lower (p < 0.10) than that in the high group (26.8 kg/day). The dietary treatment did not affect milk yield or milk fat, protein, or lactose concentrations. The ruminal acetic acid proportion of the low group was significantly higher (p < 0.05) than that of the high group. The CH4 emission per DMI of the low group tended to be higher (p < 0.10) than that of the high group. The plasma concentration of the total cholesterol (TCHO) and the activity of aspartate aminotransferase and alanine aminotransferase of the low group were significantly higher than those of the high group.
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Affiliation(s)
- Yuko Kamiya
- Institute of Livestock and Grassland Science, NARO, Nasushiobara, Japan
| | - Tomoyuki Suzuki
- Institute of Livestock and Grassland Science, NARO, Nasushiobara, Japan
| | - Kohei Oikawa
- Institute of Livestock and Grassland Science, NARO, Nasushiobara, Japan
| | - Hisami Kobayashi
- Institute of Livestock and Grassland Science, NARO, Nasushiobara, Japan
| | - Masanori Tohno
- Institute of Livestock and Grassland Science, NARO, Nasushiobara, Japan
- Japan Research Center of Genetic Resources, NARO, Tsukuba, Japan
- Graduate School of Science and Technology, University of Tsukuba, Tsukuba, Japan
| | - Ryoh Nakakubo
- Institute of Livestock and Grassland Science, NARO, Tsukuba, Japan
| | - Masaaki Matoba
- Research Center for Macromolecules and Biomaterials, National Institute for Materials Science (NIMS), Tsukuba, Japan
| | - Takahiro Nemoto
- Research Center for Macromolecules and Biomaterials, National Institute for Materials Science (NIMS), Tsukuba, Japan
| | - Kosuke Minami
- Research Center for Macromolecules and Biomaterials, National Institute for Materials Science (NIMS), Tsukuba, Japan
| | - Gaku Imamura
- Research Center for Macromolecules and Biomaterials, National Institute for Materials Science (NIMS), Tsukuba, Japan
- Graduate School of Information Science and Technology, Osaka University, Suita, Japan
| | - Genki Yoshikawa
- Research Center for Macromolecules and Biomaterials, National Institute for Materials Science (NIMS), Tsukuba, Japan
- Materials Science and Engineering, Graduate School of Pure and Applied Science, University of Tsukuba, Tsukuba, Japan
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Li H, Wang T, Tahir M, Zhang J, Sun J, Xia T, Huang F, Liu Y, Liu Z, Zhong J. Influence of Lactobacillus plantarum inoculation on the silage quality of intercropped Lablab purpureus and sweet sorghum grown in saline-alkaline region. Front Microbiol 2022; 13:1059551. [PMID: 36532470 PMCID: PMC9755603 DOI: 10.3389/fmicb.2022.1059551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 11/08/2022] [Indexed: 09/19/2023] Open
Abstract
Ensiling legume with cereal is an effective method to ensure the energy rich-feed, but no information is available on the microbial fermentation mechanism of intercropped Lablab purpureus (Lablab) and sweet sorghum in the saline-alkaline region. Therefore, the present study investigated the silage quality and microbial community of intercropped Lablab and sweet sorghum silages grown in the saline-alkaline region with or without inoculation of Lactobacillus plantarum (LP). The experimental treatments were prepared according to the Lablab and sweet sorghum planting patterns: Lablab and sweet sorghum sowing seed ratios were 1:1 (L), 5:1 (M), and 9:1 (H). After harvesting, each mixture was treated with LP or sterilized water (CK), followed by 60 days of fermentation. Results showed that both LP inoculation and intercropping significantly raised the lactic acid (LA) content and decreased the pH value, acetic acid (AA), and ammonia-N in intercropped silages. The LP addition and intercropping also improved the relative feed value by reducing structural carbohydrates. Moreover, LP silages had a greater relative abundance of Lactobacillus than CK silages, and its relative abundance increased with an increased seed-sowing ratio of Lablab in intercropping. LP was the prevalent species in LP silages compared to CK silages, and its relative abundance also increased with an increased seed-sowing ratio of Lablab in intercropping. The genus Lactobacillus was negatively correlated with ammonia-N (R = -0.6, p = 0.02) and AA (R = -0.7, p < 0.01) and positively correlated with LA (R = 0.7, p < 0.01) and crude protein (R = 0.6, p = 0.04). Overall, the intercropped seeding ratios of Lablab and sweet sorghum of ≥ 5:1 with LP inoculation resulted in better fermentation quality and preservation of nutritional components providing theoretical support and guidance for future intercropped protein-rich silage production in the saline-alkaline region.
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Affiliation(s)
- Huangkeyi Li
- School of Life Sciences, Yunnan University, Kunming, China
| | - Tianwei Wang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Muhammad Tahir
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Jiaqi Zhang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Jiahao Sun
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Tianqi Xia
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Fuqing Huang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Yayong Liu
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Zhiquan Liu
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Jin Zhong
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
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Pongsub S, Suntara C, Khota W, Boontiam W, Cherdthong A. The Chemical Composition, Fermentation End-Product of Silage, and Aerobic Stability of Cassava Pulp Fermented with Lactobacillus casei TH14 and Additives. Vet Sci 2022; 9:vetsci9110617. [PMID: 36356094 PMCID: PMC9694650 DOI: 10.3390/vetsci9110617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/04/2022] [Accepted: 11/05/2022] [Indexed: 11/09/2022] Open
Abstract
This study evaluated the effects of cassava pulp fermented with Lactobacillus casei TH14, urea, and molasses on its chemical composition, the fermentation end-product of silage, and aerobic stability. A 2 × 2 × 2 factorial arrangement with a randomized complete block design was employed. The first factor: level of L. casei TH14 [L; 0 and 105 cfu/kg fresh matter (FM)], the second factor: level of molasses (M; 0 and 4% DM), the third factor: level of urea (U; 0 and 4% DM), and the number of days of fermentation (7, 14, and 21 days) were evaluated using a statistical block. There were interactions among CSP fermented with different additives on DM content (p < 0.05). The control group (CON) and CSP fermented with L, L×M, and L×U had lower DM contents than U, U×M, and L×U×M. The crude protein of CSP was increased by interaction of L×U and U×M additives (p < 0.05 and p < 0.01, respectively). Interaction effects between L and U and NDF content were detected (p < 0.05). The L×U combination resulted in a significantly lower NDF than the other groups. The interaction between L×U×M had no effect on the change in the CSP fermentation process (p > 0.05). The combination of U×M caused a poorer pH than other groups (p < 0.01). The ammonia-N content was higher than others, when CSP was fermented with L×U (p < 0.01) or U×M (p < 0.05), respectively. The lactic acid levels in fermented CSP were higher (p < 0.01) than in other groups through the L. casei. The interaction between L×U×M had an influence on lactic acid bacteria (LAB) (p < 0.01) and aerobic bacteria (p < 0.01). The highest LAB population (p < 0.01) at 106 cfu/g FM was found in CSP fermented with L. casei and molasses. In conclusion, the current study shows that CSP treated with L×U×M resulted in good preservation by recovering DM, a low number of aerobic bacteria, and greater LAB than other treatments, with the exception of the L×U×M addition. A 21-day fermentation period is advised because it produces products with greater levels of crude protein, lactic acid, acetic acid, and propionic acid.
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Affiliation(s)
- Sunisa Pongsub
- Tropical Feed Resources Research and Development Center (TROFREC), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Chanon Suntara
- Tropical Feed Resources Research and Development Center (TROFREC), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Waroon Khota
- Department of Animal Science, Faculty of Natural Resources, Rajamangala University of Technology Isan, Sakon Nakhon Campus, Phangkhon, Sakon Nakhon 47160, Thailand
| | - Waewaree Boontiam
- Tropical Feed Resources Research and Development Center (TROFREC), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Anusorn Cherdthong
- Tropical Feed Resources Research and Development Center (TROFREC), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
- Correspondence: ; Tel.: +66-4320-2362
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The Effect of Different Lactic Acid Bacteria Inoculants on Silage Quality, Phenolic Acid Profiles, Bacterial Community and In Vitro Rumen Fermentation Characteristic of Whole Corn Silage. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8060285] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Corn silage is an important source of forage, but whether or not bacterial inoculants should be applied is somewhat controversial in ruminant feeding practice. In the present study, chopped whole corn plants treated with a single inoculant of Lactobacillus buchneri (LB), Lactobacillus plantarum (LP), Pediococcus pentosaceus (PP) served as either homofermentation (e.g., lactate only) or heterofermentation (e.g., lactate and acetate) controls and compared with those treated with either a mixture of the lactic acid bacteria (QA: 60% LP, 10%PP, 30% LB) or a mixture of the lactic acid bacteria (QB: 60% LP, 15% PP, 25% LB), to investigate their effects on the fermentation quality, ester-linked phenolic acids, and in vitro digestibility. After 60 day ensiling, the addition of QA exhibited the lowest pH (3.51) with greater lactic acid (LA) production. The ester-linked ferulic acid (FAest) and p-coumaric acid (pCAest) concentrations were significantly decreased during 60 days ensiling. And among all these groups, the LB and QA treated group showed a lower concentration of FAest and pCAest than other groups. After 60 days ensiling, Lactobacillus was the dominant genus in all LAB treated groups. Meanwhile, negative correlations of Bacillus, Bacteroides, Bifidobacterium, Blautia, Prevotella, Ruminococcus, and Roseburia with FAest content after 60 days ensiling occurred in the present study. Komagataeibacter was mainly found in LB and PP addition silages, and presented a significant negative effect with the level of acid detergent fiber (ADF). To explore whether the addition of LABs can improve digestibility of whole corn silage, an in vitro rumen fermentation was conducted using the 60 day ensiled whole corn silages as substrates. The QA addition group exhibited a greater 48 h and 96 h in vitro dry matter and ADF disappearance, greater 48 h gas production and less methane emissions. Even though there were the same neutral NDF levels in corn silages treated with LB and QA after 60 days ensiling, the QA treated silages with lower FAest and pCAest presented higher IVDMD after 96 h and 48 h in vitro fermentation. In brief, the addition of mixed inoculants of 60% LB,10% PP, 30% LB compared with the addition of whichever single HoLAB or HeLAB inoculants, facilitated the release of ester-linked phenolic acids (e.g., ferulic and p-coumaric acids) and remarkably, improved silage quality in terms of sharp pH decline and greater lactate production. Taken together with the improvement in rumen microbial fermentation, the results obtained in the present study provided concrete evidence for the role of mixed LAB application in corn silage preparation for ruminant feeding practices.
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Bio-Fermentation Improved Rumen Fermentation and Decreased Methane Concentration of Rice Straw by Altering the Particle-Attached Microbial Community. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8020072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Bio-fermentation technology has been successfully developed for ensiling rice straw; however, its effects on the particle-attached microbial community remains unknown. Therefore, rice straw (RS) and bio-fermented rice straw (BFRS) were used as substrates for in vitro rumen fermentation to investigate the effect of bio-fermentation on particle-attached microbial community, as well as their effects on gas and methane production, fermentation products, and fiber degradation. Our results have shown that total gas production, fiber degradation, and in vitro fermentation products were significantly higher (p < 0.05) for the BFRS than the RS, while methane concentration in total gas volume was significantly lower (p < 0.05) for the BFRS than RS. Linear discriminant effect size (LefSe) analysis revealed that the relative abundance of the phyla Bacteroidetes, Fibrobacteres, Proteobacteria, and Lantisphaerae, as well as the genera Fibrobacter, Saccharofermentans, and [Eubacterium] ruminantium groups in the tightly attached bacterial community, was significantly higher (p < 0.05) for the BFRS than the RS, whereas other microbial communities did not change. Thus, bio-fermentation altered the tightly attached bacterial community, thereby improving gas production, fiber degradation, and fermentation products. Furthermore, bio-fermentation reduced methane concentration in total gas volume without affecting the archaeal community.
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Effect of Feeding Discarded Durian Peel Ensiled with Lactobacillus casei TH14 and Additives in Total Mixed Rations on Digestibility, Ruminal Fermentation, Methane Mitigation, and Nitrogen Balance of Thai Native–Anglo-Nubian Goats. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8020043] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The objective of this study was to evaluate the effect of fermented discarded durian peel with Lactobacillus casei TH14, cellulase, and molasses separately or in combination in total mixed rations on feed utilization, digestibility, ruminal fermentation, and nitrogen utilization in growing crossbreed Thai Native–Anglo-Nubian goats. Five crossbreed Thai Native–Anglo-Nubian goats (50%) at 9 to 12 months of age and 20 ± 1 of body weight (BW) were assigned to a 5 × 5 Latin square design. Evaluated treatments were fermented discarded durian peel without additives (FDP), fermented discarded durian peel with 5% of molasses (FDPM), fermented discarded durian peel with 2% of cellulase (FDPC), fermented discarded durian peel with 1.0 × 105 cfu/g fresh matter of L. casei TH14 (FDPL), and fermented discarded durian peel with 5% of molasses and 1.0 × 105 cfu/g fresh matter of L. casei TH14 (FDPML). This study showed that acid detergent fiber intake was different (p < 0.05) between goats fed FDP and those fed FDPLM, 0.24 g/d and 0.20 g/d, respectively. The FDPML ration had significantly (p < 0.05) greater apparent nutrient digestibility and a better propionate concentration compared with other treatments. FDPML treatment significantly (p < 0.05) decreased the acetate-to-propionate ratio, methane production, and urinary nitrogen. Therefore, treated discarded durian peel with molasses and L. casei TH14 in combination could add 25% of dry matter into the diet for growing goats without a negative impact.
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So S, Wanapat M, Cherdthong A. Effect of sugarcane bagasse as industrial by-products treated with Lactobacillus casei TH14, cellulase and molasses on feed utilization, ruminal ecology and milk production of mid-lactating Holstein Friesian cows. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:4481-4489. [PMID: 33454981 DOI: 10.1002/jsfa.11087] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 01/07/2021] [Accepted: 01/17/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND The study aimed to evaluate the effect of Lactobacillus casei TH14, cellulase, and molasses combination fermented sugarcane bagasse (SB) as an exclusive roughage source in the total mixed ration (TMR) for mid-lactation 75% crossbred Holstein cows on feed intake, digestibility, ruminal ecology, milk yield and milk composition. Four multiparous mid-lactation crossbred (75% Holstein Friesian and 25% Thai native breed) dairy cows of 439 ± 16 kg body weight, 215 ± 5 days in milk and average milk yield 10 ± 2 kg d-1 were assigned to a 4 × 4 Latin square design. The unfermented SB (SB-TMR), SB fermented with cellulase and molasses (CM-TMR), SB fermented with L. casei TH14 and molasses (LM-TMR), and SB fermented with L. casei TH14, cellulase and molasses (LCM-TMR) were used as dietary treatments. RESULTS CM-TMR, LM-TMR and LCM-TMR significantly (P < 0.01) increased dry matter and fiber digestibility, gross energy and metabolizable energy intake (P < 0.05), blood glucose, total volatile fatty acids (P < 0.05), propionic acid and milk yield, but decreased ammonia, acetic acid, acetic:propionic ratio and methane production (P < 0.05) when compared with the SB-TMR. Compared with fermented SB treatments, LCM-TMR had lower (P < 0.05) ruminal ammonia and greater blood glucose (P < 0.01); LCM-TMR showed (P < 0.05) greater volatile fatty acids, propionic acid, milk yield and total solids, and lower acetic:propionic ratio (P < 0.01); methane, protozoa and somatic cell count were found to be lowest in LCM-TMR. CONCLUSION Combination of L. casei TH14 and additives (LCM-TMR) effectively enhanced feed use, rumen ecology and milk production of Holstein Friesian cows. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Sarong So
- Tropical Feed Resources Research and Development Center (TROFREC), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
| | - Metha Wanapat
- Tropical Feed Resources Research and Development Center (TROFREC), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
| | - Anusorn Cherdthong
- Tropical Feed Resources Research and Development Center (TROFREC), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
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ÖKTEM A, ÖKTEM AG, DEMİR D. Geç Olum Süresine Sahip Bazı Tatlı Sorgum (Sorghum bicolor var. saccharatum (L.) Mohlenbr.) Genotiplerinin Biyokütle Verimi ve Yem Kalitesinin Belirlenmesi. ULUSLARARASI TARIM VE YABAN HAYATI BILIMLERI DERGISI 2021. [DOI: 10.24180/ijaws.930210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Usman S, Dele PA, Jimoh SO, Aderinboye RY, Olanite JA. Physical, fermentative, and nutritional quality of silages made from three Sorghum bicolor varieties as affected by ensiling duration in South-west Nigeria. Trop Anim Health Prod 2021; 53:239. [PMID: 33796920 DOI: 10.1007/s11250-021-02657-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 03/09/2021] [Indexed: 11/25/2022]
Abstract
Despite large-scale sorghum production in Nigeria, its utilization as livestock feed is limited to the stover following grain harvest. Therefore, we evaluated the physical, fermentative, and nutritive quality of whole-crop silages from three Sorghum bicolor varieties at different ensiling durations. The experiment was 3×5 factorial comprising three varieties (Samsorg14, Samsorg17, and Samsorg41) and five ensiling durations (0, 4, 8, 12, and 16 weeks). Forages were ensiled at the dough stage, and the silos were opened at the pre-determined durations for quality analyses. Samsorg14 silage recorded higher pH (5.88) and significant titratable acidity (8.32 g kg-1), while the least pH was observed for Samsorg17 silage (4.63). The forages ensiled for 8 weeks had a higher pH (5.04) compared with 4.51, 5.03, and 4.57 recorded at 4, 12, and 16 weeks, respectively. In contrast, forages ensiled for 4 weeks recorded the highest titratable acidity (8.39) and Flieg point (104.07). CP content was higher in fresh Samsorg17 (110.64 g kg-1) and lower (71.01 g kg-1) in Samsorg41 ensiled for 8 weeks as influenced by variety × ensiling duration. Cumulative gas volume and methane were higher for Samsorg41 silage (21.21 and 6.76 ml 200 mg-1 DM respectively). Ensiling for 16 weeks resulted in higher silages' IVDMD (44.00%) compared with other ensiling durations. Samsorg14 and Samsorg17 had a relatively stable silage pH, higher CP, and digestibility. Therefore, their silages could be conserved up to 16 weeks to provide high-quality feed for ruminants during the dry season to maintain animal productivity and ultimately enhance food security.
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Affiliation(s)
- Samaila Usman
- State Key Laboratory of Grassland Agro-Ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, China.
- Department of Pasture and Range Management, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria.
| | - Peter Aniwe Dele
- Department of Pasture and Range Management, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria
| | - Saheed Olaide Jimoh
- Department of Pasture and Range Management, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria
- Grassland Research Institute, Chinese Academy of Agricultural Sciences/Key Laboratory of Grassland Ecology and Restoration, Ministry of Agriculture, 120 East Wulanchabu Street, Hohhot, 010010, Inner Mongolia, China
- Sustainable Environment Food and Agriculture Initiative, Lagos, 104101, Nigeria
| | - Ronke Yemisi Aderinboye
- Department of Animal Nutrition, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria
| | - Jimoh Alao Olanite
- Department of Pasture and Range Management, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria
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11
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Bai Y, Rafiq MK, Li S, Degen AA, Mašek O, Sun H, Han H, Wang T, Joseph S, Bachmann RT, Sani RK, Long R, Shang Z. Biochar from pyrolyzed Tibetan Yak dung as a novel additive in ensiling sweet sorghum: An alternate to the hazardous use of Yak dung as a fuel in the home. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123647. [PMID: 33264862 DOI: 10.1016/j.jhazmat.2020.123647] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/23/2020] [Accepted: 08/04/2020] [Indexed: 06/12/2023]
Abstract
Yak dung is used as fuel in Tibetan homes; however, this use is hazardous to health. An alternative use of the dung that would be profitable and offset the loss as a fuel would be very beneficial. Sweet sorghum silage with yak dung biochar as an additive was compared with a control silage with no additives and three silages with different commercial additives, namely Lactobacillus buchneri, Lactobacillus plantarum and Acremonium cellulase. Biochar-treated silage had a significantly greater concentration of water-soluble carbohydrates than the other silages (76 vs 12.4-45.8 g/kg DM) and a greater crude protein content (75.5 vs 61.4 g/kg DM), lactic acid concentration (40.7 vs 27.7 g/kg DM) and gross energy yield (17.8 vs 17.4 MJ/kg) than the control silage. Biochar-treated and control silages did not differ in in vitro digestibility and in total gas (507 vs 511 L/kg DM) and methane production (57.9 vs 57.1 L/kg DM). Biochar inhibited degradation of protein and water-soluble carbohydrates and enhanced lactic acid production, which improved storability of feed. It was concluded that yak dung biochar is an efficient, cost-effective ensiling additive. The profit could offset the loss of dung as fuel and improve the health of Tibetan people.
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Affiliation(s)
- Yanfu Bai
- State Key Laboratory of Grassland Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Muhammad Khalid Rafiq
- UK Biochar Research Centre, School of Geosciences, University of Edinburgh, Crew Building, King's Buildings, Edinburgh, EH9 3FF, United Kingdom; Rangeland Research Institute, National Agricultural Research Center, Islamabad, 44000, Pakistan
| | - Shanshan Li
- State Key Laboratory of Grassland Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - A Allan Degen
- Desert Animal Adaptations and Husbandry, Wyler Department of Dryland Agriculture, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer Sheva, 8410500, Israel
| | - Ondřej Mašek
- UK Biochar Research Centre, School of Geosciences, University of Edinburgh, Crew Building, King's Buildings, Edinburgh, EH9 3FF, United Kingdom
| | - Hongwen Sun
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Huawen Han
- State Key Laboratory of Grassland Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Ting Wang
- State Key Laboratory of Grassland Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Stephen Joseph
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Robert Thomas Bachmann
- Malaysian Institute for Chemical and Bioengineering Technology (MICET), Universiti Kuala Lumpur (UniKL), Lot 1988, Taboh Naning, 78000, Alor Gajah, Melaka, Malaysia
| | - Rajesh K Sani
- Chemical and Biological Engineering, South Dakota School of Mines and Technology, 501 E. St. Joseph Street, Rapid City, SD, 57701, United States
| | - Ruijun Long
- State Key Laboratory of Grassland Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Zhanhuan Shang
- State Key Laboratory of Grassland Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.
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12
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Improving ensiling characteristics by adding lactic acid bacteria modifies in vitro digestibility and methane production of forage-sorghum mixture silage. Sci Rep 2021; 11:1968. [PMID: 33479407 PMCID: PMC7820244 DOI: 10.1038/s41598-021-81505-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 01/07/2021] [Indexed: 11/08/2022] Open
Abstract
Improving the nutrition of livestock is an important aspect of global food production sustainability. This study verified whether lactic acid bacteria (LAB) inoculant could promote ensiling characteristics, nutritive value, and in vitro enteric methane (CH4) mitigation of forage sorghum (FS) mixture silage in attacking malnutrition in Zebu beef cattle. The FS at the soft dough stage, Cavalcade hay (CH), and cassava chip (CC) were obtained. The treatments were designed as a 4 × 2 factorial arrangement in a completely randomized design. Factor A was FS prepared without or with CH, CC, and CH + CC. Factor B was untreated or treated with Lactobacillus casei TH14. The results showed that all FS mixture silages preserved well with lower pH values below 4.0 and higher lactic acid contents above 56.4 g/kg dry matter (DM). Adding LAB boosted the lactic acid content of silages. After 24 h and 48 h of in vitro rumen incubation, the CC-treated silage increased in vitro DM digestibility (IVDMD) with increased total gas production and CH4 production. The LAB-treated silage increased IVDMD but decreased CH4 production. Thus, the addition of L. casei TH14 inoculant could improve lactic acid fermentation, in vitro digestibility, and CH4 mitigation in the FS mixture silages.
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So S, Cherdthong A, Wanapat M. Improving sugarcane bagasse quality as ruminant feed with Lactobacillus, cellulase, and molasses. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2020; 62:648-658. [PMID: 33089230 PMCID: PMC7553837 DOI: 10.5187/jast.2020.62.5.648] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 07/31/2020] [Accepted: 08/04/2020] [Indexed: 12/11/2022]
Abstract
The objective of the study was to evaluate the effects of
Lactobacillus, cellulase, and molasses on chemical
composition, fermentation qualities, and microorganism count of sugarcane
bagasse silage after 30-days fermentation. The treatments were arranged
according to a factorial arrangement (2 × 2 × 2) + 1, in a
complete randomized design. The first factor consisted of two levels of
Lactobacillus casei TH14 (TH14, 0 and 0.05 g/kg fresh
matter; the second factor consisted of two levels of cellulase enzyme (C, 0 and
104 U/kg fresh matter); and the third factor consisted of two
levels of molasses (M, 0 and 5 g/ 100 mL distilled water). A treatment (+1)
referred to the use of rice straw without any treatments. The result showed that
dry matter increased by 4% and neutral detergent fiber decreased by 2% of
sugarcane bagasse when ensiled as a combination of additives as compared to
untreated sugarcane bagasse. The pH and ammonia nitrogen were significantly
dropped to 3.5 and 2.3 g/kg dry matter. Furthermore, lactic acid was increased
by 64% when compared to untreated sugarcane bagasse, respectively. Lactic acid
bacteria count was increased by 28% as compared to untreated sugarcane bagasse.
Based on this experiment, fermenting with L. casei TH14,
cellulase, and molasses in combination resulted in the promotion of the best
qualities of sugarcane bagasse silage.
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Affiliation(s)
- Sarong So
- Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Anusorn Cherdthong
- Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Metha Wanapat
- Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
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Cherdthong A, Suntara C, Khota W. Lactobacillus casei
TH14 and additives could modulate the quality, gas kinetics and the in vitro digestibility of ensilaged rice straw. J Anim Physiol Anim Nutr (Berl) 2020; 104:1690-1703. [DOI: 10.1111/jpn.13426] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/16/2020] [Accepted: 06/20/2020] [Indexed: 11/29/2022]
Affiliation(s)
- Anusorn Cherdthong
- Tropical Feed Resources Research and Development Center (TROFREC) Department of Animal Science Faculty of Agriculture Khon Kaen University Khon Kaen Thailand
| | - Chanon Suntara
- Tropical Feed Resources Research and Development Center (TROFREC) Department of Animal Science Faculty of Agriculture Khon Kaen University Khon Kaen Thailand
| | - Waroon Khota
- Tropical Feed Resources Research and Development Center (TROFREC) Department of Animal Science Faculty of Agriculture Khon Kaen University Khon Kaen Thailand
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15
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So S, Cherdthong A, Wanapat M, Uriyapongson S. Fermented sugarcane bagasse with Lactobacillus combined with cellulase and molasses promotes in vitro gas kinetics, degradability, and ruminal fermentation patterns compared to rice straw. Anim Biotechnol 2020; 33:116-127. [DOI: 10.1080/10495398.2020.1781146] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Sarong So
- Department of Animal Science, Faculty of Agriculture, Tropical Feed Resources Research and Development Center (TROFREC), Khon Kaen University, Khon Kaen, Thailand
| | - Anusorn Cherdthong
- Department of Animal Science, Faculty of Agriculture, Tropical Feed Resources Research and Development Center (TROFREC), Khon Kaen University, Khon Kaen, Thailand
| | - Metha Wanapat
- Department of Animal Science, Faculty of Agriculture, Tropical Feed Resources Research and Development Center (TROFREC), Khon Kaen University, Khon Kaen, Thailand
| | - Suthipong Uriyapongson
- Department of Animal Science, Faculty of Agriculture, Tropical Feed Resources Research and Development Center (TROFREC), Khon Kaen University, Khon Kaen, Thailand
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Guo L, Yao D, Li D, Lin Y, Bureenok S, Ni K, Yang F. Effects of Lactic Acid Bacteria Isolated From Rumen Fluid and Feces of Dairy Cows on Fermentation Quality, Microbial Community, and in vitro Digestibility of Alfalfa Silage. Front Microbiol 2020; 10:2998. [PMID: 31998275 PMCID: PMC6962301 DOI: 10.3389/fmicb.2019.02998] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 12/11/2019] [Indexed: 12/12/2022] Open
Abstract
The objective of this study was to select lactic acid bacteria (LAB) isolated from the rumen fluid and feces of dairy cows, and evaluate their effects on silage quality of alfalfa after 30 or 60 days of ensiling. One hundred and four LAB strains were isolated from rumen fluid and feces of six dairy cows, of which four strains (Lactobacillus plantarum F1, L. plantarum F50, Lactobacillus salivarius L100, and Lactobacillus fermentum L120) and one commercial inoculant (GFG) isolated from forage were employed for further study. The silages treated with F1 had the lowest (P < 0.05) pH value and the highest (P < 0.05) lactic acid (LA) content in all treatments. Besides, higher (P < 0.05) in vitro digestibility was also observed in F1-treated silage after 60 days of ensiling. The microbial analysis showed that the Lactobacillus abundance in the F1-treated silages increased to 60.32%, higher than other treatments (5.12–47.64%). Our research indicated that strain F1 could be an alternative silage inoculant, and dairy cows could be a source for obtaining excellent LAB for ensiling.
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Affiliation(s)
- Linna Guo
- College of Grassland Science and Technology, China Agricultural University, Beijing, China
| | - Dandan Yao
- College of Grassland Science and Technology, China Agricultural University, Beijing, China.,College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Dongxia Li
- College of Grassland Science and Technology, China Agricultural University, Beijing, China
| | - Yanli Lin
- Beijing Sure Academy of Biosciences, Beijing, China
| | - Smerjai Bureenok
- Department of Agricultural Technology and Environment, Rajamangala University of Technology Isan, Nakhon Ratchasima, Thailand
| | - Kuikui Ni
- College of Grassland Science and Technology, China Agricultural University, Beijing, China
| | - Fuyu Yang
- College of Grassland Science and Technology, China Agricultural University, Beijing, China
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Cai Y, Du Z, Yamasaki S, Jethro DB, Man N. Chemical composition, characteristics concerned with fermentative quality and microbial population of ensiled pearl millet and sorghum stover in semi-arid West Africa. Anim Sci J 2020; 91:e13463. [PMID: 33222395 PMCID: PMC7757160 DOI: 10.1111/asj.13463] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/07/2020] [Accepted: 09/10/2020] [Indexed: 11/30/2022]
Abstract
To effectively utilize crop by-product resources for ruminant feed in semi-arid West Africa, we studied the chemical composition, characteristics concerned with fermentative quality, and microbial population of ensiled pearl millet stover (PMS) and sorghum stover (SS) in Mozambique. After panicle harvest, the PMS and SS were exposed in the field for 7, 21, 35, 49, 63, 77, 91, and 120 days under natural weather conditions. The fresh stover silages were prepared and stored for 120 days. With increased exposure time, the dry matter, neutral detergent fiber, acid detergent lignin, and neutral detergent insoluble nitrogen contents increased, whereas the crude protein, ether extract, gross energy, digestible energy, metabolizable energy, and true protein contents decreased. After 120 days of field exposure, aerobic bacteria dominated both stovers, and lactic acid bacteria (LAB) decreased to below detectable levels. After 120 days of ensiling, LAB dominated the silage of both crops, while the harmful microorganisms as aerobic bacteria, coliform bacteria, yeast, and mold were reduced or below detectable levels. Both silages did not produce more lactic acid to reduce the pH value, but they preserved nutrients well during ensiling. Therefore, PMS and SS can be prepared as silage for ruminant feed in semi-arid West Africa.
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Affiliation(s)
- Yimin Cai
- Japan International Research Center for Agricultural Sciences (JIRCAS)TsukubaJapan
| | - Zhumei Du
- Japan International Research Center for Agricultural Sciences (JIRCAS)TsukubaJapan
- College of Grassland Science and TechnologyChina Agricultural UniversityBeijingPR China
| | - Seishi Yamasaki
- Japan International Research Center for Agricultural Sciences (JIRCAS)TsukubaJapan
| | - Delma B. Jethro
- Institute of Environment and Agriculture Research (INERA)KoudougouBurkina Faso
| | - Nignan Man
- Institute of Environment and Agriculture Research (INERA)KoudougouBurkina Faso
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18
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Bureenok S, Langsoumechai S, Pitiwittayakul N, Yuangklang C, Vasupen K, Saenmahayak B, Schonewille JT. Effects of fibrolytic enzymes and lactic acid bacteria on fermentation quality and in vitro digestibility of Napier grass silage. ITALIAN JOURNAL OF ANIMAL SCIENCE 2019. [DOI: 10.1080/1828051x.2019.1681910] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Smerjai Bureenok
- Department of Agricultural Technology and Environment, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Ratchasima, Thailand
| | - Sioudome Langsoumechai
- Department of Agricultural Technology and Environment, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Ratchasima, Thailand
| | - Nittaya Pitiwittayakul
- Department of Agricultural Technology and Environment, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Ratchasima, Thailand
| | - Chalermpon Yuangklang
- Department of Agricultural Technology and Environment, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Ratchasima, Thailand
| | - Kraisit Vasupen
- Department of Agricultural Technology and Environment, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Ratchasima, Thailand
| | - Benya Saenmahayak
- Department of Agricultural Technology and Environment, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Ratchasima, Thailand
| | - Jan Thomas Schonewille
- Department of Agricultural Technology and Environment, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Ratchasima, Thailand
- Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
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19
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Gao JL, Wang P, Zhou CH, Li P, Tang HY, Zhang JB, Cai Y. Chemical composition and in vitro digestibility of corn stover during field exposure and their fermentation characteristics of silage prepared with microbial additives. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2019; 32:1854-1863. [PMID: 31010973 PMCID: PMC6819684 DOI: 10.5713/ajas.18.0886] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 03/18/2019] [Indexed: 11/27/2022]
Abstract
Objective To effectively use corn stover resources as animal feed, we explored the chemical composition and in vitro digestibility of corn stover during field exposure and the fermentation characteristics of silage prepared with lactic acid bacteria (LAB) and cellulase. Methods Corn ears including the cobs and shucks were harvested at the ripe stage. The corn stover was exposed in the field under natural weather conditions. Silages were prepared after 0, 2, 4, 7, 15, 30, and 60 d of exposure. Corn stover was chopped into approximately 1 to 2 cm lengths and then packed into 5 liter plastic silos. The ensiling density was 550.1±20.0 g/L of fresh matter, and the silos were kept at room temperature (10°C to 25°C). Silage treatments were designed as follows: without additives (control), with LAB, with cellulase, and with LAB+ cellulase. After 45 d of fermentation, the silos were opened for chemical composition, fermentation quality and in vitro digestion analyses. Results After harvest, corn stover contained 78.19% moisture, 9.01% crude protein (CP) and 64.54% neutral detergent fiber (NDF) on a dry matter (DM) basis. During field exposure, the DM, NDF, and acid detergent fiber (ADF) contents of corn stover increased, whereas the CP and water-soluble carbohydrate contents and in vitro digestibility of the DM and CP decreased (p<0.05). Compared to the control silage, cellulase-treated silage had lower (p<0.05) NDF and ADF contents. The pH values were lower in silage treated with LAB, cellulase, or LAB+cellulase, and lactic acid contents were higher (p<0.05) than those of the control. Silage treated with cellulase or LAB+cellulase improved (p<0.05) the in vitro DM digestibility (IVDMD) compared to that of the control or LAB-treated silage. Conclusion Corn stover silage should be prepared using fresh materials since stover nutrients are lost during field exposure, and LAB and cellulase can improve silage fermentation and IVDMD.
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Affiliation(s)
- Jun Lei Gao
- College of Animal Science, Jilin University, Changchun 130062, China
| | - Peng Wang
- College of Animal Science, Jilin University, Changchun 130062, China
| | - Chang Hai Zhou
- College of Animal Science, Jilin University, Changchun 130062, China
| | - Ping Li
- School of Architecture and Civil Engineering, Changchun Sci-Tech University, Changchun 130600, China
| | - Hong Yu Tang
- College of Animal Science, Jilin University, Changchun 130062, China
| | - Jia Bao Zhang
- College of Animal Science, Jilin University, Changchun 130062, China
| | - Yimin Cai
- Japan International Research Center for Agricultural Sciences, Tsukuba 305-8686, Japan
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