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Deng J, Zhang F, Fan H, Zheng Y, Zhao C, Ren M, Jin E, Gu Y. Effects of Plant Polysaccharides Combined with Boric Acid on Digestive Function, Immune Function, Harmful Gas and Heavy Metal Contents in Faeces of Fatteners. Animals (Basel) 2024; 14:1515. [PMID: 38891562 PMCID: PMC11171036 DOI: 10.3390/ani14111515] [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: 03/01/2024] [Revised: 04/29/2024] [Accepted: 05/16/2024] [Indexed: 06/21/2024] Open
Abstract
The experiment aimed to investigate the effects of plant polysaccharides combined with boric acid on digestive function, immune function and harmful gas and heavy metal contents in the faeces of fatteners. For this study, 90 healthy crossbred fatteners were selected and randomly divided into five groups: the control group was fed with a basal diet (Con); experimental group I was fed with basal diet + 40 mg/kg boric acid (BA); experimental group II was fed with basal diet + 40 mg/kg boric acid + 400 mg/kg Astragalus polysaccharides (BA+APS); experimental group III was fed with basal diet + 40 mg/kg boric acid + 200 mg/kg Ganoderma lucidum polysaccharides (BA+GLP); and experimental group IV was fed with basal diet + 40 mg/kg boric acid + 500 mg/kg Echinacea polysaccharides (BA+EPS). Compared with Con, the average daily gain (ADG), the trypsin activities in the duodenum and jejunum, the IL-2 levels in the spleen, the T-AOC activities and GSH-Px contents in the lymph node of fattening were increased in the BA group (p < 0.05), but malondialdehyde content in the lymph and spleen, and the contents of NH3, H2S, Hg, Cu, Fe and Zn in the feces and urine were decreased (p < 0.05). Compared with the BA, the ADG, gain-to-feed ratio (G/F), the trypsin and maltase activities in the duodenum and jejunum were increased in the BA+APS (p < 0.05), and the T-SOD activities in the spleen and T-AOC activities in the lymph node were also increased (p < 0.05), but the H2S level was decreased in the feces and urine (p < 0.05). Compared with the BA, the ADG, G/F and the trypsin and maltase activities in the duodenum were increased in the BA+GLP and BA+EPS (p < 0.05), the activities of maltase and lipase in the duodenum of fatteners in the BA+GLP and the activities of trypsin, maltase and lipase in the BA+EPS were increased (p < 0.05). Gathering everything together, our findings reveal that the combined addition of boric acid and plant polysaccharides in the diet of fatteners synergistically improved their growth performance and immune status. That may be achieved by regulating the activity of intestinal digestive enzymes, improving the antioxidant function and then promoting the digestion and absorption of nutrients. Furthermore, the above results reduce the emission of harmful gases and heavy metals in feces and urine.
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Affiliation(s)
- Juan Deng
- College of Animal Science, Anhui Science and Technology University, Chuzhou 233100, China; (J.D.); (F.Z.); (H.F.); (Y.Z.); (C.Z.); (M.R.)
| | - Feng Zhang
- College of Animal Science, Anhui Science and Technology University, Chuzhou 233100, China; (J.D.); (F.Z.); (H.F.); (Y.Z.); (C.Z.); (M.R.)
- Anhui Province Key Laboratory of Animal Nutrition Regulation and Health, Chuzhou 233100, China
| | - Haoran Fan
- College of Animal Science, Anhui Science and Technology University, Chuzhou 233100, China; (J.D.); (F.Z.); (H.F.); (Y.Z.); (C.Z.); (M.R.)
| | - Yuxuan Zheng
- College of Animal Science, Anhui Science and Technology University, Chuzhou 233100, China; (J.D.); (F.Z.); (H.F.); (Y.Z.); (C.Z.); (M.R.)
| | - Chunfang Zhao
- College of Animal Science, Anhui Science and Technology University, Chuzhou 233100, China; (J.D.); (F.Z.); (H.F.); (Y.Z.); (C.Z.); (M.R.)
- Anhui Province Key Laboratory of Animal Nutrition Regulation and Health, Chuzhou 233100, China
| | - Man Ren
- College of Animal Science, Anhui Science and Technology University, Chuzhou 233100, China; (J.D.); (F.Z.); (H.F.); (Y.Z.); (C.Z.); (M.R.)
- Anhui Province Key Laboratory of Animal Nutrition Regulation and Health, Chuzhou 233100, China
| | - Erhui Jin
- College of Animal Science, Anhui Science and Technology University, Chuzhou 233100, China; (J.D.); (F.Z.); (H.F.); (Y.Z.); (C.Z.); (M.R.)
- Anhui Province Key Laboratory of Animal Nutrition Regulation and Health, Chuzhou 233100, China
| | - Youfang Gu
- College of Animal Science, Anhui Science and Technology University, Chuzhou 233100, China; (J.D.); (F.Z.); (H.F.); (Y.Z.); (C.Z.); (M.R.)
- Anhui Province Key Laboratory of Animal Nutrition Regulation and Health, Chuzhou 233100, China
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Jia Y, Shi Y, Qiao H. Bacterial community and diversity in the rumen of 11 Mongolian cattle as revealed by 16S rRNA amplicon sequencing. Sci Rep 2024; 14:1546. [PMID: 38233488 PMCID: PMC10794206 DOI: 10.1038/s41598-024-51828-8] [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: 05/26/2023] [Accepted: 01/09/2024] [Indexed: 01/19/2024] Open
Abstract
Through microorganism in the rumen of ruminant, plant fiber can be converted to edible food such as meat and milk. Ruminants had a rich and complex microbial community within the rumen, and the bacteria comprised the dominant proportion of the ruminal microbes. High-throughput sequencing offered a viable solution for the study of rumen microbes. In this study, rumen fluid samples were taken from 11 cattle from Inner Mongolian, the DNA of 11 rumen fluid samples were extracted and bacterial amplicons of the V4 regions of 16S rRNA were subjected to Illumina sequencing. More than 90,000 raw reads and 60,000 effect Tags per sample were obtained. 28,122 operational taxonomic units (OTUs) were observed from 11 samples, in average 2557 ± 361 OTUs for each sample. Bacteroidetes (44.41 ± 7.31%), Firmicutes (29.07 ± 3.78%), and Proteobacteria (7.18 ± 5.63%) were the dominant phyla among the bacteria of rumen, accounting for 82%. At the genus level, the highest relative abundance was Prevotella. Their functions were predicted using the Kyoto Encyclopedia of Genes and Genomes (KEGG). The results showed that they included metabolism, genetic information processing, environmental information processing and cellular processes. It explored the bacterial community diversity and composition of the rumen of Mongolian cattle. On the whole, our research showed that there was a high diversity as well as rich bacterial flora function of rumen bacteria in Mongolian cattle. Meanwhile, these findings provided information for further studies on the relationship between the community, diversity, functions of rumen bacteria and the nutritional physiological functions of the host.
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Affiliation(s)
- Yijiu Jia
- College of Chemical Engineering, Inner Mongolia University of Technology, No. 49 Aimin Street, Xincheng District, Hohhot, 010051, China
| | - Yali Shi
- College of Chemical Engineering, Inner Mongolia University of Technology, No. 49 Aimin Street, Xincheng District, Hohhot, 010051, China.
| | - Huiyan Qiao
- College of Chemical Engineering, Inner Mongolia University of Technology, No. 49 Aimin Street, Xincheng District, Hohhot, 010051, China
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Ren S, Zhang L, Tang X, Fan C, Zhao Y, Cheng Q, Zhang Y. Plant Secondary Compounds Promote White Adipose Tissue Browning via Modulation of the Gut Microbiota in Small Mammals. Int J Mol Sci 2023; 24:17420. [PMID: 38139249 PMCID: PMC10743627 DOI: 10.3390/ijms242417420] [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: 11/16/2023] [Revised: 12/08/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
The browning of white adipose tissue (WAT) is a promising area of research for treating metabolic disorders and obesity in the future. However, studies on plant secondary compounds promoting WAT browning are limited. Herein, we explored the effects of swainsonine (SW) on gut microbiota and WAT browning in captive pikas. SW inhibited body mass gain, increased brown adipose tissue (BAT) mass, and induced WAT browning in pikas. The 16S rDNA sequencing revealed a significant reduction in the alpha diversity and altered community structure of the gut microbiota in captive pikas. However, the addition of SW to the diet significantly increased the alpha diversity of gut microbiota and the relative abundance of Akkermansia, Prevotella, and unclassified_f__Lachnospiraceae, along with the complexity of the microbial co-occurrence network structure, which decreased in the guts of captive pikas. Functional profiles showed that SW significantly decreased the relative abundances of energy metabolism, lipid metabolism, and glycan biosynthesis and metabolism, which were enriched in captive pikas. Furthermore, SW decreased deterministic processes of gut microbiota assembly in July and increased them in November. Finally, the genera Prevotella and unclassified_f__Prevotellaceae were positively correlated with BAT mass. Our results highlighted that plant secondary compounds promote WAT browning by modulating the gut microbiota in small mammals.
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Affiliation(s)
- Shien Ren
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
- Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Xining 810008, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liangzhi Zhang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
- Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Xining 810008, China
| | - Xianjiang Tang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
- Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Xining 810008, China
| | - Chao Fan
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
- Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Xining 810008, China
| | - Yaqi Zhao
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
- Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Xining 810008, China
| | - Qi Cheng
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
- Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Xining 810008, China
| | - Yanming Zhang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
- Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Xining 810008, China
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Choi Y, Lee SJ, Kim HS, Eom JS, Jo SU, Guan LL, Seo J, Lee Y, Song T, Lee SS. Assessment of the Pinus koraiensis cone essential oil on methane production and microbial abundance using in vitro evaluation system. Anim Feed Sci Technol 2023. [DOI: 10.1016/j.anifeedsci.2023.115640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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Dietary Polysaccharide-Rich Extract from Noni ( Morinda citrifolia L.) Fruit Modified Ruminal Fermentation, Ruminal Bacterial Community and Nutrient Digestion in Cashmere Goats. Animals (Basel) 2023; 13:ani13020221. [PMID: 36670760 PMCID: PMC9854603 DOI: 10.3390/ani13020221] [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: 10/21/2022] [Revised: 12/22/2022] [Accepted: 12/30/2022] [Indexed: 01/10/2023] Open
Abstract
In two consecutive studies, we evaluated the effects of polysaccharide-rich noni (Morinda citrifolia L.) fruit extract (NFP) on ruminal fermentation, ruminal microbes and nutrient digestion in cashmere goats. In Exp. 1, the effects of a diet containing NFP of 0, 0.1%, 0.2%, 0.4% and 0.55% on in vitro ruminal fermentation at 3, 6, 9, 12 and 24 h were determined, whereas in Exp. 2, fourteen cashmere goats (46.65 ± 3.36 kg of BW ± SD) were randomly assigned to two treatments: the basal diet with or without (CON) supplementation of NFP at 4 g per kg DM (0.4%). The in vitro results showed that NFP linearly increased concentrations of volatile fatty acids (VFA), quadratically decreased ammonia-N concentration, and changed pH, protozoa number, gas production and the microbial protein (MCP) concentration, and was more effective at 0.4% addition, which yielded similar results in ruminal fermentation in Exp. 2. In addition, NFP increased the apparent digestibility of dry matter and crude protein and the abundance of Firmicutes, and reduced the abundance of Bacteroides and Actinobacteria. Ruminococcus_1 was positively associated with VFA concentration. The Rikenellaceae_RC9_gut_group was positively correlated with protozoa and negatively correlated with MCP concentration. Thus, NFP has potential as a ruminal fermentation enhancer for cashmere goats.
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Qiu X, Qin X, Chen L, Chen Z, Hao R, Zhang S, Yang S, Wang L, Cui Y, Li Y, Ma Y, Cao B, Su H. Serum Biochemical Parameters, Rumen Fermentation, and Rumen Bacterial Communities Are Partly Driven by the Breed and Sex of Cattle When Fed High-Grain Diet. Microorganisms 2022; 10:microorganisms10020323. [PMID: 35208778 PMCID: PMC8878564 DOI: 10.3390/microorganisms10020323] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/28/2021] [Accepted: 01/06/2022] [Indexed: 02/04/2023] Open
Abstract
Hybridization in bovines is practiced with the main aim of improving production performance, which may imply the microbial variations in the rumen from the parental breed cross to their progeny. Besides, the interactions of offspring breed with sex in terms of rumen bacteria are not clear. This study aims to evaluate the variations in rumen bacterial communities in different breeds and sexes, and the correlations among fattening performance, serum biochemical parameters, and rumen fermentation. Forty-two 19.2 ± 0.67-month-old beef cattle (390 ± 95 kg of initial body weight) comprising two genetic lines (Yiling and Angus × Yiling) and two sexes (heifers and steers) were raised under the same high-grain diet for 120 d. On the last two days, blood samples were collected from each animal via the jugular vein before morning feeding for analyzing serum biochemical parameters; rumen fluid samples were obtained via esophageal intubation 2 h after morning feeding for analyzing rumen fermentation parameters and bacterial communities. The results show that both breed and sex had a certain impact on fattening performance, serum biochemical parameters, and rumen fermentation. No differences in the diversity and structure of rumen bacterial communities were observed. Significant interactions (p < 0.05) of breed and sex were observed for Succinivibrionaceae UCG-002 and Prevotellaceae UCG-001. The relative abundances of the Rikenellaceae RC9 gut group, Prevotellaceae UCG-003, and Succinivibrio were different (p < 0.05) between breeds. Heifers had a higher (p = 0.008) relative abundance of the Rikenellaceae RC9 gut group than steers. Correlation analysis showed a significant relationship (p < 0.05) of rumen bacteria with serum biochemical parameters, rumen pH, and rumen fermentation patterns. Additionally, only two genera, Prevotellaceae UCG-003 and Prevotellaceae UCG-001, had positive correlations with feed efficiency. In conclusion, serum biochemical parameters, rumen fermentation, and rumen bacterial communities are partly driven by the breed and sex of cattle fed a high-grain diet.
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Affiliation(s)
- Xinjun Qiu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100000, China; (X.Q.); (X.Q.); (Z.C.); (R.H.); (S.Z.); (S.Y.); (L.W.); (Y.C.); (Y.L.); (Y.M.)
| | - Xiaoli Qin
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100000, China; (X.Q.); (X.Q.); (Z.C.); (R.H.); (S.Z.); (S.Y.); (L.W.); (Y.C.); (Y.L.); (Y.M.)
| | - Liming Chen
- Hubei Fulljoywo Agricultural Development Company Limited, Yichang 443000, China;
| | - Zhiming Chen
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100000, China; (X.Q.); (X.Q.); (Z.C.); (R.H.); (S.Z.); (S.Y.); (L.W.); (Y.C.); (Y.L.); (Y.M.)
| | - Rikang Hao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100000, China; (X.Q.); (X.Q.); (Z.C.); (R.H.); (S.Z.); (S.Y.); (L.W.); (Y.C.); (Y.L.); (Y.M.)
| | - Siyu Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100000, China; (X.Q.); (X.Q.); (Z.C.); (R.H.); (S.Z.); (S.Y.); (L.W.); (Y.C.); (Y.L.); (Y.M.)
| | - Shunran Yang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100000, China; (X.Q.); (X.Q.); (Z.C.); (R.H.); (S.Z.); (S.Y.); (L.W.); (Y.C.); (Y.L.); (Y.M.)
| | - Lina Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100000, China; (X.Q.); (X.Q.); (Z.C.); (R.H.); (S.Z.); (S.Y.); (L.W.); (Y.C.); (Y.L.); (Y.M.)
| | - Yafang Cui
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100000, China; (X.Q.); (X.Q.); (Z.C.); (R.H.); (S.Z.); (S.Y.); (L.W.); (Y.C.); (Y.L.); (Y.M.)
| | - Yingqi Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100000, China; (X.Q.); (X.Q.); (Z.C.); (R.H.); (S.Z.); (S.Y.); (L.W.); (Y.C.); (Y.L.); (Y.M.)
| | - Yiheng Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100000, China; (X.Q.); (X.Q.); (Z.C.); (R.H.); (S.Z.); (S.Y.); (L.W.); (Y.C.); (Y.L.); (Y.M.)
| | - Binghai Cao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100000, China; (X.Q.); (X.Q.); (Z.C.); (R.H.); (S.Z.); (S.Y.); (L.W.); (Y.C.); (Y.L.); (Y.M.)
- Correspondence: (B.C.); (H.S.); Tel.: +86-010-6273-3850 (B.C.); +86-010-6281-4346 (H.S.)
| | - Huawei Su
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100000, China; (X.Q.); (X.Q.); (Z.C.); (R.H.); (S.Z.); (S.Y.); (L.W.); (Y.C.); (Y.L.); (Y.M.)
- Correspondence: (B.C.); (H.S.); Tel.: +86-010-6273-3850 (B.C.); +86-010-6281-4346 (H.S.)
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Zeng Z, Sheng P, Zhang H, He L, Huang J, Wang D, Gui G. The effect of Macleaya cordata extract on in vitro ruminal fermentation and methanogenesis. Food Sci Nutr 2021; 9:4561-4567. [PMID: 34401103 PMCID: PMC8358341 DOI: 10.1002/fsn3.2436] [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: 02/10/2021] [Revised: 06/09/2021] [Accepted: 06/11/2021] [Indexed: 11/11/2022] Open
Abstract
Methane production is the main gas energy loss in ruminants and generates a powerful greenhouse gas that contributes to climate changes. Macleaya cordata is a plant commonly utilized additive in livestock diet as it contains various chemical compounds with beneficial health effects. This study aimed to explore the influence of M. cordata extract on in vitro methanogenesis and rumen fermentation. Three cannulated Jingjiang cattle were used as rumen fluid donors. The mixture of rumen fluid and a buffer (60 ml, 1:2 volume ratio) was treated with 6 different concentrations of M. cordata extract (0.01%, 0.11%, 0.21%, 0.31%, 0.41%, and 0.51%) and incubated for 12 and 24 hr. The control sample, with no addition of plant extract, was also analyzed. At each time point, pH, total gas, methane, dry matter (DM) digestibility, neutral detergent fiber (NDF), acid detergent fiber (ADF), ammonia nitrogen (NH3-N), microbial protein (MCP), and volatile fatty acids (VFA) concentrations were determined. Total gas production decreased with increasing the amount of M. cordata extract at all time points. Methane production also decreased dose-dependently with M. cordata extract after 3, 6, 9, and 12 hr of incubation, but increased after 24 hr. M. cordata extract decreased the concentration of NH3-N and VFA, and the amount of acetic, propionic, and butyric acid. M. cordata extract decreased the MCP concentration after 12 hr, but its level returned to the initial value after 24 hr. Supplementation with 0.01, 0.11, and 0.21% of M. cordata extract did not affect the DM digestibility. However, supplementation with 0.31, 0.41, and 0.51% of M. cordata extract significantly decreased the DM digestibility. Supplementation with 0.11% of M. cordata extract effectively reduced methane production without affecting the DM digestion in vitro. However, its effect on in vivo methane production, rumen fermentation, and ruminant production requires further investigation.
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Affiliation(s)
- Ze Zeng
- Key Open Laboratory of Chinese Veterinary Medicine of State Ethnic Affairs CommissionTongren Vocational and Technical CollegeTongrenChina
| | - Ping Sheng
- Institute of Biological ResourcesJiangxi Academy of SciencesNanchangChina
| | - Huaqi Zhang
- Key Open Laboratory of Chinese Veterinary Medicine of State Ethnic Affairs CommissionTongren Vocational and Technical CollegeTongrenChina
- Institute of Biological ResourcesJiangxi Academy of SciencesNanchangChina
| | - Li He
- Institute of Biological ResourcesJiangxi Academy of SciencesNanchangChina
| | - Jiangli Huang
- Institute of Biological ResourcesJiangxi Academy of SciencesNanchangChina
| | - Dongsheng Wang
- Institute of Biological ResourcesJiangxi Academy of SciencesNanchangChina
| | - Ganbei Gui
- Key Open Laboratory of Chinese Veterinary Medicine of State Ethnic Affairs CommissionTongren Vocational and Technical CollegeTongrenChina
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Colombini S, Rota Graziosi A, Parma P, Iriti M, Vitalini S, Sarnataro C, Spanghero M. Evaluation of dietary addition of 2 essential oils from Achillea moschata, or their components (bornyl acetate, camphor, and eucalyptol) on in vitro ruminal fermentation and microbial community composition. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2021; 7:224-231. [PMID: 33997351 PMCID: PMC8110856 DOI: 10.1016/j.aninu.2020.11.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 09/28/2020] [Accepted: 11/20/2020] [Indexed: 01/19/2023]
Abstract
This study investigated the effects of 2 Achillea moschata essential oils extracted from plants collected in 2 different valleys of the Italian Alps and 3 pure compounds of oils - bornyl acetate (BOR), camphor (CAM), and eucalyptol (EUCA) - on in vitro ruminal fermentation and microbiota. An in vitro batch fermentation experiment (Exp. 1) tested the addition of all of the substances (2 essential oils and 3 compounds) in fermentation bottles (120 mL) at 48 h of incubation, whereas a subsequent in vitro continuous culture experiment (Exp. 2) evaluated the pure compounds added to the fermenters (2 L) for a longer incubation period (9 d). In both experiments, total mixed rations were incubated with the additives, and samples without additives were included as the control (CTR). Each treatment was tested in duplicate and was repeated in 3 and 2 fermentation runs in Exp. 1 and 2, respectively. Gas production (GP) in Exp. 1 was similar for all of the treatments, and short chain volatile fatty acid (SCFA) production was similar in both experiments except for a decrease of SCFA produced (P = 0.029) due to EUCA addition in Exp. 2. Compared to CTR, BOR and CAM reduced the valerate proportion (P = 0.04) in Exp. 1, and increased (P < 0.01) the acetate proportion in Exp. 2. All treatments increased (P < 0.01) total protozoa counts (+36.7% and +48.4% compared to CTR on average for Exp. 1 and 2, respectively). In Exp. 1, all of the treatments lowered the Bacteroidetes and Firmicutes and increased the Proteobacteria relative abundances (P < 0.05), whereas in Exp. 2, the EUCA addition increased (P = 0.012) the Ruminococcus. In Exp. 1, methane (CH4) as a proportion of the GP was lowered (P = 0.004) by the addition of CAM and EUCA compared to CTR, whereas in Exp. 2, EUCA reduced the amount of stoichiometrically calculated CH4 compared to CTR. Overall, essential oils extracted from A. moschata and the pure compounds did not depress in vitro rumen fermentation, except for EUCA in Exp. 2. In both experiments, an increase of the protozoal population occurred for all the additives.
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Affiliation(s)
- Stefania Colombini
- Dipartimento di Scienze Agrarie e Ambientali—Produzione, Territorio, Agroenergia, Università Degli Studi di Milano, Via Celoria 2, 20133 Milano, Italy
| | - Andrea Rota Graziosi
- Dipartimento di Scienze Agrarie e Ambientali—Produzione, Territorio, Agroenergia, Università Degli Studi di Milano, Via Celoria 2, 20133 Milano, Italy
| | - Pietro Parma
- Dipartimento di Scienze Agrarie e Ambientali—Produzione, Territorio, Agroenergia, Università Degli Studi di Milano, Via Celoria 2, 20133 Milano, Italy
| | - Marcello Iriti
- Dipartimento di Scienze Agrarie e Ambientali—Produzione, Territorio, Agroenergia, Università Degli Studi di Milano, Via Celoria 2, 20133 Milano, Italy
| | - Sara Vitalini
- Dipartimento di Scienze Agrarie e Ambientali—Produzione, Territorio, Agroenergia, Università Degli Studi di Milano, Via Celoria 2, 20133 Milano, Italy
| | - Chiara Sarnataro
- Dipartimento di Scienze Agroalimentari, Ambientali e Animali, Università Degli Studi di Udine, 33100 Udine, Italy
| | - Mauro Spanghero
- Dipartimento di Scienze Agroalimentari, Ambientali e Animali, Università Degli Studi di Udine, 33100 Udine, Italy
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OZKAYA S. Effect of Oregano aromatic water supplementation to rumen fluid on in vitro digestion and rumen parameters of starter in calves. THE INDIAN JOURNAL OF ANIMAL SCIENCES 2020. [DOI: 10.56093/ijans.v90i6.105001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Restriction on the use of antibiotics in animal nutrition has led researchers and consumers to use alternative antimicrobial agents. Aromatic plants and their essential oils are one of the alternatives. In the literature, there are studies on the effects of essential oils on in vitro digestion and rumen parameters; however, no studies on the effects of aromatic water, a by-product, have been found. Therefore, this study aims to determine the effects of Oregano aromatic water (OAW) supplemented in 0, 40, 60 and 80 ml/L on in vitro digestion and rumen parameters of starter in calves (n=6 for each doses). The rumen fluid used in the study was obtained from calves of 60 d-age. Total gas and methane gas production, metabolic energy and organic matter digestion were determined by the in vitro gas production technique and the effects on rumen essential oils were observed. The effect of supplemented OAW doses on in vitro gas production, methane production, organic matter digestion, and metabolic energy level was not found to be significant. However, total volatile acids (VFA), acetate (AA), propionate (PA) and butyrate (BA) values and proportions were affected by OAW doses. The findings of the study showed that supplementation of OAW might be useful in modifying rumen fermentation in ruminants.
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Petrič D, Mravčáková D, Kucková K, Čobanová K, Kišidayová S, Cieslak A, Ślusarczyk S, Váradyová Z. Effect of dry medicinal plants (wormwood, chamomile, fumitory and mallow) on in vitro ruminal antioxidant capacity and fermentation patterns of sheep. J Anim Physiol Anim Nutr (Berl) 2020; 104:1219-1232. [PMID: 32202350 DOI: 10.1111/jpn.13349] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 02/06/2020] [Accepted: 02/25/2020] [Indexed: 01/27/2023]
Abstract
The objective of this study was to determine the effect of dry medicinal plants (wormwood, chamomile, fumitory and mallow) and dietary substrates containing a mix of the plants on the end products of in vitro ruminal and intestinal fermentation, rumen protozoan population and ruminal antioxidant capacity of sheep. The experiment consisted of fermentations with the four plants used individually as the sole substrate and fermentation of a mix of medicinal plants (Plants): meadow hay:barley grain (MH:B), 700/300 w/w and Plants:MH:B, 100/600/300 w/w/w. The experiment was conducted using the in vitro gas production technique (IVGPT) with 35 ml of buffered inocula and approximately 250 mg (DM basis) of substrate incubated for 24 hr at 39°C in anaerobic conditions. Quantitative analyses of the bioactive compounds by ultra-high-resolution mass spectrometry in Plants identified three main groups: flavonoids (22 mg/g DM), phenolic acids (15 mg/g DM) and alkaloids (3 mg/g DM). The total antioxidant capacity (TAC) of the plant extracts and rumen fluid was analysed using a ferric reducing antioxidant power assay. The values of total and individual short-chain fatty acids, acetate:propionate ratio, pH and total gas production were significantly affected by the single plant substrates and inocula (p < .001). Apart from these parameters, the values of ammonia N, methane production and total gas produced were decreased in Plants:MH:B in comparison with MH:B (p < .001). A positive correlation was recorded between total polyphenols content and TAC of plant extracts (R2 = .778, p < .001). The counts of the total ciliate protozoan population in rumen fluid after 24 hr of fermentation were not significantly different (p > .05). Results suggest that the dietary substrate containing the medicinal plant mix possessed strong ruminal antioxidant capacity, had the potential to reduce methane emission and ammonia concentration and caused desirable changes in the gastrointestinal ecosystem.
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Affiliation(s)
- Daniel Petrič
- Institute of Animal Physiology, Centre of Biosciences of Slovak Academy of Sciences, Košice, Slovak Republic
| | - Dominika Mravčáková
- Institute of Animal Physiology, Centre of Biosciences of Slovak Academy of Sciences, Košice, Slovak Republic
| | - Katarína Kucková
- Institute of Animal Physiology, Centre of Biosciences of Slovak Academy of Sciences, Košice, Slovak Republic
| | - Klaudia Čobanová
- Institute of Animal Physiology, Centre of Biosciences of Slovak Academy of Sciences, Košice, Slovak Republic
| | - Svetlana Kišidayová
- Institute of Animal Physiology, Centre of Biosciences of Slovak Academy of Sciences, Košice, Slovak Republic
| | - Adam Cieslak
- Department of Animal Nutrition, Poznan University of Life Sciences, Poznan, Poland
| | - Sylwester Ślusarczyk
- Department of Pharmaceutical Biology and Botany, Wroclaw Medical University, Wroclaw, Poland
| | - Zora Váradyová
- Institute of Animal Physiology, Centre of Biosciences of Slovak Academy of Sciences, Košice, Slovak Republic
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11
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Hassan FU, Ebeid HM, Tang Z, Li M, Peng L, Peng K, Liang X, Yang C. A Mixed Phytogenic Modulates the Rumen Bacteria Composition and Milk Fatty Acid Profile of Water Buffaloes. Front Vet Sci 2020; 7:569. [PMID: 33005643 PMCID: PMC7479126 DOI: 10.3389/fvets.2020.00569] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 07/16/2020] [Indexed: 12/29/2022] Open
Abstract
This study was aimed to evaluate the effect of a mixed phytogenic (MP) on rumen bacteria and their potential association with rumen fermentation and milk yield parameters in water buffaloes. Twenty Murrah buffaloes were fed a basal diet (consisting of maize silage, brewers' grains, and concentrate mixture) for 6 weeks supplemented with 0 (control), 15 (MP15), 25 (MP25), and 35 (MP35) g of mixed phytogenic/buffalo per d. The mixed phytogenic contained fennel (seeds), ajwain (seeds), ginger (tubers), Swertia chirata (leaves), Citrullus colocynthis (fruit), turmeric, fenugreek (seeds), Terminalia chebula (fruit), licorice (roots), and Phyllanthus emblica (fruit) in equal quantities. After 2 weeks of adaptation, daily milk yield, and weekly milk composition were recorded. On the last day of the experiment (d 42), rumen contents were collected to determine rumen fermentation parameters and bacterial diversity through 16S rRNA sequencing. Results revealed no change in dry matter intake, milk yield and rumen fermentation parameters except pH, which increased (P = 0.029) in response to MP supplementation. The mixed phytogenic increased (P < 0.01) milk fatty acids (C4 to C14:0) in MP15 only. The milk C16:1 content and its unsaturation index were higher (P < 0.05) in MP35 as compared to the control and other treatments. Furthermore, C18:3n3 was higher (P < 0.05) in the control, MP15, and MP25, as compared to MP35. Supplementation of MP tended to increase (P = 0.095) the Shannon index of bacterial alpha diversity and a difference (P < 0.05) among treatment groups was observed in beta diversity. Feeding MP increased the Firmicutes, Proteobacteria, and Spirochaetes but decreased Bacteroidetes numerically. In addition, the dominant genus Prevotella decreased in all treatment groups while Pseudobutyrivibrio, Butyrivibrio, and Succinivibrioanceae increased numerically in MP25 and MP35. The mixed phytogenic promoted groups of rumen bacteria positively associated with milk and fat yield. Overall, our study revealed 14 positive correlations of rumen bacteria with milk yield and eight with rumen fermentation parameters. Our findings reveal substantial changes in the rumen bacteriome composition and milk fatty acid content in response to MP but these results should be interpreted carefully, as the sample size of our study was relatively small.
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Affiliation(s)
- Faiz-Ul Hassan
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, China.,Institute of Animal and Dairy Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Hossam M Ebeid
- Dairy Science Department, National Research Centre, Giza, Egypt
| | - Zhenhua Tang
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, China
| | - Mengwei Li
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, China
| | - Lijuan Peng
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, China
| | - Kaiping Peng
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, China
| | - Xin Liang
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, China
| | - Chengjian Yang
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, China
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12
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Yu J, Cai L, Zhang J, Yang A, Wang Y, Zhang L, Guan LL, Qi D. Effects of Thymol Supplementation on Goat Rumen Fermentation and Rumen Microbiota In Vitro. Microorganisms 2020; 8:microorganisms8081160. [PMID: 32751619 PMCID: PMC7463607 DOI: 10.3390/microorganisms8081160] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/21/2020] [Accepted: 07/27/2020] [Indexed: 12/27/2022] Open
Abstract
This study was performed to explore the predominant responses of rumen microbiota with thymol supplementation as well as effective dose of thymol on rumen fermentation. Thymol at different concentrations, i.e., 0, 100 mg/L, 200 mg/L, and 400 mg/L (four groups × five replications) was applied for 24 h of fermentation in a rumen fluid incubation system. Illumina MiSeq sequencing was applied to investigate the ruminal microbes in addition to the examination of rumen fermentation. Thymol doses reached 200 mg/L and significantly decreased (p < 0.05) total gas production (TGP) and methane production; the production of total volatile fatty acids (VFA), propionate, and ammonia nitrogen, and the digestibility of dry matter and organic matter were apparently decreased (p < 0.05) when the thymol dose reached 400 mg/L. A thymol dose of 200 mg/L significantly affected (p < 0.05) the relative abundance of 14 genera of bacteria, three species of archaea, and two genera of protozoa. Network analysis showed that bacteria, archaea, and protozoa significantly correlated with methane production and VFA production. This study indicates an optimal dose of thymol at 200 mg/L to facilitate rumen fermentation, the critical roles of bacteria in rumen fermentation, and their interactions with the archaea and protozoa.
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Affiliation(s)
- Jiangkun Yu
- Department of Animal Nutrition and Feed Science, Huazhong Agricultural University, Wuhan 430070, China; (J.Y.); (L.C.); (J.Z.); (A.Y.); (Y.W.); (L.Z.)
| | - Liyuan Cai
- Department of Animal Nutrition and Feed Science, Huazhong Agricultural University, Wuhan 430070, China; (J.Y.); (L.C.); (J.Z.); (A.Y.); (Y.W.); (L.Z.)
| | - Jiacai Zhang
- Department of Animal Nutrition and Feed Science, Huazhong Agricultural University, Wuhan 430070, China; (J.Y.); (L.C.); (J.Z.); (A.Y.); (Y.W.); (L.Z.)
| | - Ao Yang
- Department of Animal Nutrition and Feed Science, Huazhong Agricultural University, Wuhan 430070, China; (J.Y.); (L.C.); (J.Z.); (A.Y.); (Y.W.); (L.Z.)
| | - Yanan Wang
- Department of Animal Nutrition and Feed Science, Huazhong Agricultural University, Wuhan 430070, China; (J.Y.); (L.C.); (J.Z.); (A.Y.); (Y.W.); (L.Z.)
| | - Lei Zhang
- Department of Animal Nutrition and Feed Science, Huazhong Agricultural University, Wuhan 430070, China; (J.Y.); (L.C.); (J.Z.); (A.Y.); (Y.W.); (L.Z.)
| | - Le Luo Guan
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada;
| | - Desheng Qi
- Department of Animal Nutrition and Feed Science, Huazhong Agricultural University, Wuhan 430070, China; (J.Y.); (L.C.); (J.Z.); (A.Y.); (Y.W.); (L.Z.)
- Correspondence: ; Tel.: +86-27-87281793
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KUMARI PUNITA, SINGH P, VERMA AK, GAUR GK, DAS A. Effect of molasses based multi-nutrient herbal supplements on in vitro digestibility, serum enzymes and minerals profile in buffalo calves. THE INDIAN JOURNAL OF ANIMAL SCIENCES 2020. [DOI: 10.56093/ijans.v90i2.98782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Molasses based multinutrients herbal supplements (MMS) containing ground fenugreek seed and de-oiled mahua seed cake at two different ratios (1:1; MMS I or 1:3; MMS II) was evaluated under in vitro as well as in vivo conditions. For in vitro evaluation, concentrate mixture and wheat straw in 50: 50 ratio (on DM basis) was taken as substrate for the experiment. MMS I and MMS II were added at 2, 3 and 4% of the substrate, respectively. The total gas production (ml/g DM), partitioning factor (PF) and microbial biomass production (MBP) were found comparable in all the groups but significantly improved the IVDMD and IVOMD in supplemented groups. Under in vivo feeding trial, serum enzymes and minerals profile in buffalo calves were assessed during 9 months of experimental period. Fifteen male Murrah buffalo calves (10 to 15 months of age and mean body wt. 234.0±12.5 kg) were randomly distributed into 3 groups (5 in each group) according to randomized block design. All animals were fed with conventional concentrate mixture, available chopped green fodder (3-4 kg DM/d) and wheat straw ad lib to meet out nutrients requirement. While control group (C) were not fed supplements but groups T1 and T2 supplemented with MMS I and MMS II, respectively at 44 g/100 kg body weight or 200 g/100 kg metabolic body weight (kgW0.75). Serum AST, ALT activities and serum concentration of Ca, P, Fe, Mn, Cu and Co were comparable among 3 groups but serum concentration of Zn was significantly higher among supplemented groups. Thus, results show that supplementation of MMS improved IVDMD, IVOMD and serum Zn level resulting in to better health conditions of buffalo calves.
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14
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Ma ZZ, Cheng YY, Wang SQ, Ge JZ, Shi HP, Kou JC. Positive effects of dietary supplementation of three probiotics on milk yield, milk composition and intestinal flora in Sannan dairy goats varied in kind of probiotics. J Anim Physiol Anim Nutr (Berl) 2019; 104:44-55. [PMID: 31701580 DOI: 10.1111/jpn.13226] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 09/04/2019] [Accepted: 09/13/2019] [Indexed: 12/13/2022]
Abstract
In this study, we investigated the effects of Saccharomyces cerevisiae (SC), Bacillus subtilis (BS) and Enterococcus faecalis (EF), singly and in combination, on the dry matter intake (DMI), milk production and composition, and faecal microflora of Saanen dairy goats. Fifty goats were randomly divided into five groups: (a) basal diet (control); (b) basal diet + SC; (c) basal diet + BS; (d) basal diet + EF; and (e) basal diet + mixed probiotics. Each treated animal received 5 g/d of probiotics for a total administration of 5 × 1,011 CFU/goat per day. The inclusion of B. subtilis and E. faecalis in the diet of lactating Saanen goats increased DMI (p < .05). Enhanced milk yield was observed with BS and EF. Milk fat percentage was significantly increased by feeding mixed probiotics compared with the control (p < .05); supplying SC, BS and mixed probiotics enhanced the protein percentage (p < .05). The milk lactose percentage in the SC and BS groups was higher than in the control (p < .05). The amount of milk total solids was higher after feeding EF or mixed probiotics than in the control group (p < .05). Non-fat solids showed no notable differences among groups (p > .05). There was no significant influence on gut bacterial abundance and diversity from adding these three probiotics, singly or in combination. Bacteroidales, Escherichia-Shigella and Christensenellaceae abundances were decreased by supplying these probiotics but Succinivibrionaceae increased. In conclusion, there were positive influences of probiotic feed supplementation on intake, milk performance and intestinal microecology.
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Affiliation(s)
- Zhen-Zhu Ma
- College of Grassland Agriculture, Northwest A&F University, Shaanxi, China
| | - Yu-Yang Cheng
- College of Grassland Agriculture, Northwest A&F University, Shaanxi, China
| | - Sheng-Qi Wang
- College of Grassland Agriculture, Northwest A&F University, Shaanxi, China
| | - Jian-Zhen Ge
- College of Grassland Agriculture, Northwest A&F University, Shaanxi, China
| | - Huai-Ping Shi
- College of Animal Science and Technology, Northwest A&F University, Shaanxi, China
| | - Jian-Cun Kou
- College of Grassland Agriculture, Northwest A&F University, Shaanxi, China
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15
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Islam M, Lee SS. Advanced estimation and mitigation strategies: a cumulative approach to enteric methane abatement from ruminants. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2019; 61:122-137. [PMID: 31333869 PMCID: PMC6582924 DOI: 10.5187/jast.2019.61.3.122] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/09/2019] [Accepted: 05/13/2019] [Indexed: 11/20/2022]
Abstract
Methane, one of the important greenhouse gas, has a higher global warming
potential than that of carbon dioxide. Agriculture, especially livestock, is
considered as the biggest sector in producing anthropogenic methane. Among
livestock, ruminants are the highest emitters of enteric methane.
Methanogenesis, a continuous process in the rumen, carried out by archaea either
with a hydrogenotrophic pathway that converts hydrogen and carbon dioxide to
methane or with methylotrophic pathway, which the substrate for methanogenesis
is methyl groups. For accurate estimation of methane from ruminants, three
methods have been successfully used in various experiments under different
environmental conditions such as respiration chamber, sulfur hexafluoride tracer
technique, and the automated head-chamber or GreenFeed system. Methane
production and emission from ruminants are increasing day by day with an
increase of ruminants which help to meet up the nutrient demands of the
increasing human population throughout the world. Several mitigation strategies
have been taken separately for methane abatement from ruminant productions such
as animal intervention, diet selection, dietary feed additives, probiotics,
defaunation, supplementation of fats, oils, organic acids, plant secondary
metabolites, etc. However, sustainable mitigation strategies are not established
yet. A cumulative approach of accurate enteric methane measurement and existing
mitigation strategies with more focusing on the biological reduction of methane
emission by direct-fed microbials could be the sustainable methane mitigation
approaches.
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Affiliation(s)
- Mahfuzul Islam
- Ruminant Nutrition and Anaerobe Laboratory, Department of Animal Science and Technology, Sunchon National University, Suncheon 57922, Korea
| | - Sang-Suk Lee
- Ruminant Nutrition and Anaerobe Laboratory, Department of Animal Science and Technology, Sunchon National University, Suncheon 57922, Korea
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Joch M, Kudrna V, Hakl J, Božik M, Homolka P, Illek J, Tyrolová Y, Výborná A. In vitro and in vivo potential of a blend of essential oil compounds to improve rumen fermentation and performance of dairy cows. Anim Feed Sci Technol 2019. [DOI: 10.1016/j.anifeedsci.2019.03.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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