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Guo T, Zhang Q, Wang X, Xu X, Wang Y, Wei L, Li N, Liu H, Hu L, Zhao N, Xu S. Targeted and untargeted metabolomics reveals meat quality in grazing yak during different phenology periods on the Qinghai-Tibetan Plateau. Food Chem 2024; 447:138855. [PMID: 38520902 DOI: 10.1016/j.foodchem.2024.138855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 02/20/2024] [Accepted: 02/24/2024] [Indexed: 03/25/2024]
Abstract
Yak meat is more popular among consumers because of its high nutritional value, but little attention has been paid to its meat quality, which is affected by different phenology periods grass. We hypothesized that seasonal variations in grass composition influenced the ruminal bacteria community, and eventually affected the meat quality of yaks. This study aims to investigate the relationship of meat quality in grazing yak as well as the key rumen bacteria using targeted and untargeted metabolomics and 16S rRNA during different phenology periods. The main three altered metabolic pathways in grazing yak, including amino acids biosynthesis, glutathione metabolism, and fatty acids biosynthesis, were found in the grass period (GP) group compared to the regreen period (RP) and hay period (HP) groups. The GP group had higher concentrations of flavor amino acids (FAA), polyunsaturated fatty acids (PUFA), and a lower ratio of n-6/n-3 compared with the RP group. Correlation analysis results showed that Rikenellaceae_RC9_gut_group was positively correlated with fatty acids and lipid metabolites, which might be involved in lipid metabolism. Pediococcus had a positive correlation with biological peptides, which could be involved in the metabolism of bioactive compounds. In conclusion, grass in different phenology periods was associated with modified amino acids and fatty acids composition of yak meat as well as altered regulation of biological pathways, which was correlated with changes in rumen bacterial communities.
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Affiliation(s)
- Tongqing Guo
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qian Zhang
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xungang Wang
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
| | - Xianli Xu
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yalin Wang
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lin Wei
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Na Li
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongjin Liu
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
| | - Linyong Hu
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
| | - Na Zhao
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
| | - Shixiao Xu
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China.
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Kou X, Ma Q, Liu Y, Khan MZ, Wu B, Chen W, Liu X, Wang C, Li Y. Exploring the Effect of Gastrointestinal Prevotella on Growth Performance Traits in Livestock Animals. Animals (Basel) 2024; 14:1965. [PMID: 38998077 PMCID: PMC11240335 DOI: 10.3390/ani14131965] [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: 05/28/2024] [Revised: 06/27/2024] [Accepted: 07/01/2024] [Indexed: 07/14/2024] Open
Abstract
Microorganisms in the rumen play a crucial role in determining the most efficient utilization rate of nutrients. Among these microorganisms, Prevotella stands out as one of the most representative bacteria within the rumen biological system. Prevotella is a common strict anaerobic bacterium that is found in the gastrointestinal tract of livestock. Prevotella plays a crucial role in breaking down and metabolizing complex nutrients like cellulose and protein during food digestion. Moreover, it is capable of working together with other bacteria in the body's digestive system. Several studies have shown a strong correlation between the abundance of Prevotella and livestock growth performance. This paper provides a comprehensive review of the current research on the function, mechanisms, and applications of Prevotella in the gastrointestinal tract. The insights provided in this review could serve as a theoretical basis for accurately classifying Prevotella, further investigating its effects and potential mechanisms on livestock growth performance, and exploring its practical applications.
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Affiliation(s)
- Xiyan Kou
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Qingshan Ma
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Yihong Liu
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Muhammad Zahoor Khan
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Boxian Wu
- Shandong Dong’e Black Donkey Husbandry Technology Co., Ltd., Liaocheng 252000, China
| | - Wenting Chen
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Xiaotong Liu
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Changfa Wang
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Yan Li
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
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Singar S, Kadyan S, Patoine C, Park G, Arjmandi B, Nagpal R. The Effects of Almond Consumption on Cardiovascular Health and Gut Microbiome: A Comprehensive Review. Nutrients 2024; 16:1964. [PMID: 38931317 PMCID: PMC11207051 DOI: 10.3390/nu16121964] [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: 05/06/2024] [Revised: 06/13/2024] [Accepted: 06/16/2024] [Indexed: 06/28/2024] Open
Abstract
The consumption of almonds has been associated with several health benefits, particularly concerning cardiovascular and intestinal health. In this comprehensive review, we compile and deliberate studies investigating the effects of almond consumption on cardiovascular disease (CVD) risk factors and gut health. Almonds are rich in monounsaturated fats, fiber, vitamins, minerals, and polyphenols, which contribute to their health-promoting properties. Regular intake of almonds has been shown to improve lipid profiles by reducing LDL cholesterol and enhancing HDL functionality. Additionally, almonds aid in glycemic control, blood pressure reduction, and chronic inflammation amelioration, which are critical for cardiovascular health. The antioxidant properties of almonds, primarily due to their high vitamin E content, help in reducing oxidative stress markers. Furthermore, almonds positively influence body composition by reducing body fat percentage and central adiposity and enhancing satiety, thus aiding in weight management. Herein, we also contemplate the emerging concept of the gut-heart axis, where almond consumption appears to modulate the gut microbiome, promoting the growth of beneficial bacteria and increasing short-chain fatty acid production, particularly butyrate. These effects collectively contribute to the anti-inflammatory and cardioprotective benefits of almonds. By encompassing these diverse aspects, we eventually provide a systematic and updated perspective on the multifaceted benefits of almond consumption for cardiovascular health and gut microbiome, corroborating their broader consideration in dietary guidelines and public health recommendations for CVD risk reduction.
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Affiliation(s)
- Saiful Singar
- The Gut Biome Lab, Department of Health, Nutrition, and Food Sciences, College of Education, Health, and Human Sciences, Florida State University, Tallahassee, FL 32304, USA; (S.S.); (S.K.); (C.P.); (G.P.)
- Center for Advancing Exercise and Nutrition Research on Aging, Department of Health, Nutrition, and Food Sciences, College of Education, Health, and Human Sciences, Florida State University, Tallahassee, FL 32304, USA
| | - Saurabh Kadyan
- The Gut Biome Lab, Department of Health, Nutrition, and Food Sciences, College of Education, Health, and Human Sciences, Florida State University, Tallahassee, FL 32304, USA; (S.S.); (S.K.); (C.P.); (G.P.)
| | - Cole Patoine
- The Gut Biome Lab, Department of Health, Nutrition, and Food Sciences, College of Education, Health, and Human Sciences, Florida State University, Tallahassee, FL 32304, USA; (S.S.); (S.K.); (C.P.); (G.P.)
| | - Gwoncheol Park
- The Gut Biome Lab, Department of Health, Nutrition, and Food Sciences, College of Education, Health, and Human Sciences, Florida State University, Tallahassee, FL 32304, USA; (S.S.); (S.K.); (C.P.); (G.P.)
| | - Bahram Arjmandi
- Center for Advancing Exercise and Nutrition Research on Aging, Department of Health, Nutrition, and Food Sciences, College of Education, Health, and Human Sciences, Florida State University, Tallahassee, FL 32304, USA
| | - Ravinder Nagpal
- The Gut Biome Lab, Department of Health, Nutrition, and Food Sciences, College of Education, Health, and Human Sciences, Florida State University, Tallahassee, FL 32304, USA; (S.S.); (S.K.); (C.P.); (G.P.)
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Ran T, Xu Z, Yang W, Liu D, Wu D. Partially substituting alfalfa hay with hemp forage in the diet of goats improved feed efficiency, ruminal fermentation pattern and microbial profiles. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2024; 17:49-60. [PMID: 38558755 PMCID: PMC10980998 DOI: 10.1016/j.aninu.2024.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 01/16/2024] [Accepted: 01/18/2024] [Indexed: 04/04/2024]
Abstract
The use of hemp as a forage source in livestock diets has been less studied because bioactive residues in animal tissues may pose a risk to consumers. This study investigated the effects of partial substitution of alfalfa hay (AH) with hemp forage (HF) in growing goat diets on growth performance, carcass traits, ruminal fermentation characteristics, rumen microbial communities, blood biochemistry, and antioxidant indices. Forty Xiangdong black goats with body weight (BW) 7.82 ± 0.57 kg (mean ± SD) were grouped by BW and randomly assigned into one of the four treatment diets (n = 10/treatment) in a completely randomized design. The goats were fed ad libitum total mixed rations containing 60% forage and 40% concentrate (DM basis). The diets included control (CON; 60% AH and 40% concentrate), 55% AH and 5% HF (HF5), 50% AH and 10% HF (HF10), and 40% AH and 20% HF (HF20). Increasing the substitution of HF for AH linearly decreased (P < 0.01) DM intake and improved feed conversion efficiency. However, final BW, average daily gain, carcass traits, meat quality, and most blood biochemistry indices did not differ among treatments. The ruminal NH3-N concentration and blood urine nitrogen linearly increased (P < 0.01) with increasing substitution rate of HF, whereas the total volatile fatty acids concentration quadratically changed (P < 0.01). Substitution of AH with HF had no effect on the diversity and richness of ruminal microbes, though it linearly decreased (P = 0.040) Prevotella_1 and linearly increased (P = 0.017) Rikenellaceae_RC9_gut_group. The cannabinoids and/or their metabolites were detected in both ruminal filtrates (8) and plasma (4), however, no detectable cannabinoid-related residues were observed in meat. These results indicate that the HF could be used to partially substitute AH in goat diets, whereas the effects vary between substitution rates of HF for AH. Although no cannabinoid-related residues were detected in meat, the presence of cannabinoids residues in blood warrants further study of HF feeding to confirm the cannabinoids residues are not present in the animal products.
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Affiliation(s)
- Tao Ran
- College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, Gansu, China
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, Lanzhou, 730020, Gansu, China
| | - Zhipeng Xu
- Changshu Center for Animal Disease Prevention and Control, Changshu, 215500, Jiangsu, China
| | - Wenzhu Yang
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, Lethbridge, AB, T1J 4B1, Canada
| | - Dalin Liu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Duanqin Wu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China
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Capasso C, Supuran CT. Carbonic anhydrase and bacterial metabolism: a chance for antibacterial drug discovery. Expert Opin Ther Pat 2024; 34:465-474. [PMID: 38506448 DOI: 10.1080/13543776.2024.2332663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 03/08/2024] [Indexed: 03/21/2024]
Abstract
INTRODUCTION Carbonic anhydrases (CAs, EC 4.2.1.1) play a pivotal role in the regulation of carbon dioxide , bicarbonate, and hydrogen ions within bacterial cells, ensuring pH homeostasis and facilitating energy production. We conducted a systematic literature search (PubMed, Web of Science, and Google Scholar) to examine the intricate interplay between CAs and bacterial metabolism, revealing the potential of CA inhibitors (CAIs) as innovative therapeutic agents against pathogenic bacteria. AREA COVERED Inhibition of bacterial CAs was explored in various pathogens, emphasizing the CA roles in microbial virulence, survival, and adaptability. Escherichia coli, a valid and convenient model microorganism, was recently used to investigate the effects of acetazolamide (AAZ) on the bacterial life cycle. Furthermore, the effectiveness of CAIs against pathogenic bacteria has been further substantiated for Vancomycin-Resistant Enterococci (VRE) and antibiotic-resistant Neisseria gonorrhoeae strains. EXPERT OPINION CAIs target bacterial metabolic pathways, offering alternatives to conventional therapies. They hold promise against drug-resistant microorganisms such as VRE and N. gonorrhoeae strains. CAIs offer promising avenues for addressing antibiotic resistance and underscore their potential as novel antibacterial agents. Recognizing the central role of CAs in bacterial growth and pathogenicity will pave the way for innovative infection control and treatment strategies possibly also for other antibiotic resistant species.
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Affiliation(s)
- Clemente Capasso
- Department of Biology, Agriculture and Food Sciences, Institute of Biosciences and Bioresources, CNR, Napoli, Italy
| | - Claudiu T Supuran
- NEUROFARBA Department, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Florence, Italy
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Duan P, Rehemujiang H, Zhang L, Lu M, Li C, Hu L, Wang Y, Diao Q, Xu G. Lycium barbarum (Wolfberry) Branches and Leaves Enhance the Growth Performance and Improve the Rumen Microbiota in Hu Sheep. Animals (Basel) 2024; 14:1610. [PMID: 38891656 PMCID: PMC11171408 DOI: 10.3390/ani14111610] [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: 04/10/2024] [Revised: 05/24/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024] Open
Abstract
The Lycium barbarum branches and leaves (LBL) are known to contain a range of active substances that have positive effects on animal immunity and antioxidation. This study aimed to examine how LBL impacts the growth and slaughter performance as well as rumen fermentation and microbiota in Hu sheep. A total of 50 male Hu sheep of indigenous origin, aged 3 months, were randomly divided into 5 groups of 10 sheep each. The groups were given different levels of LBL supplementation (0%, 3%, 6%, 9%, and 12%) to evaluate growth performance and nutrient apparent digestibility. Rumen fluid samples were collected for analysis of the fermentation parameters and rumen chyme was examined to study the rumen microbiota. The slaughter performance, meat quality, and organ index were evaluated at the conclusion of the experiment. The results showed that the final body weight and average daily gain of the LBL1 group were significantly higher than those of the CON group, LBL3 group, and LBL4 group (p < 0.05). The average dry matter intake of the LBL4 group was significantly lower than that of other experimental groups (p < 0.05). The apparent digestibility of CP in the LBL1 and LBL2 groups was higher than that in other experimental groups (p < 0.05). At the same time, the eye muscle area and grade-rule (GR) value of Hu sheep in the LBL1 group significantly increased and the quality of Hu sheep meat improved (p < 0.05). There was no significant difference in organ weight and organ index between the experimental groups (p > 0.05). The pH of the rumen fluid in the LBL1 group was significantly lower than that in the CON group (p < 0.05). There was no significant difference in the NH3-N content between the experimental groups (p > 0.05). The propionate and valerate in the rumen fluid of Hu sheep in the LBL2 group were significantly higher than those in other experimental groups (p < 0.05). In addition, this had no significant effect on the structure and abundance of the rumen microbiota (p > 0.05). LBL is a promising functional feed. Adding an appropriate amount of LBL to the diet can improve the feed efficiency, growth performance, and meat quality of Hu sheep but has no adverse effects on the rumen. In this experiment, the appropriate supplemental level of LBL in the diet was 3%.
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Affiliation(s)
- Pingping Duan
- College of Animal Science and Technology, Tarim University, Alar 843300, China; (P.D.); (H.R.); (L.Z.); (M.L.); (C.L.); (L.H.)
| | - Halidai Rehemujiang
- College of Animal Science and Technology, Tarim University, Alar 843300, China; (P.D.); (H.R.); (L.Z.); (M.L.); (C.L.); (L.H.)
| | - Lidong Zhang
- College of Animal Science and Technology, Tarim University, Alar 843300, China; (P.D.); (H.R.); (L.Z.); (M.L.); (C.L.); (L.H.)
| | - Mulong Lu
- College of Animal Science and Technology, Tarim University, Alar 843300, China; (P.D.); (H.R.); (L.Z.); (M.L.); (C.L.); (L.H.)
| | - Changchang Li
- College of Animal Science and Technology, Tarim University, Alar 843300, China; (P.D.); (H.R.); (L.Z.); (M.L.); (C.L.); (L.H.)
| | - Lihong Hu
- College of Animal Science and Technology, Tarim University, Alar 843300, China; (P.D.); (H.R.); (L.Z.); (M.L.); (C.L.); (L.H.)
| | - Youli Wang
- College of Animal Science and Veterinary, Southwest Minzu University, Chengdu 610041, China;
| | - Qiyu Diao
- Institute of Feed Research, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Beijing 100080, China;
| | - Guishan Xu
- College of Animal Science and Technology, Tarim University, Alar 843300, China; (P.D.); (H.R.); (L.Z.); (M.L.); (C.L.); (L.H.)
- Key Laboratory of Tarim Animal Husbandry Science and Technology, Tarim University, Alar 843300, China
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Chen T, Liu S, Zhang S, Song H, Zhuang Y, Ma J, Xiao J, Wang J, Ma Y, Wang Y, Wang W, Li S, Cao Z. Initial diet shapes resistance-gene composition and fecal microbiome dynamics in young ruminants during nursing. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:172103. [PMID: 38556024 DOI: 10.1016/j.scitotenv.2024.172103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/27/2024] [Accepted: 03/28/2024] [Indexed: 04/02/2024]
Abstract
This study was conducted to examine how colostrum pasteurization affects resistance genes and microbial communities in calf feces. Forty female Holstein calves were randomly assigned to either the control (CON) group, which received unheated colostrum, or the pasteurized colostrum (PAT) group. The calves body weight was measured weekly before morning feeding. Calf starter intake were measured and recorded daily before morning feeding. Samples of colostrum were collected before feeding. Blood was collected on d 1 and 70 before morning feeding. Ten calves were randomly selected from each group (n = 20 calves total) for fecal sampling on d 3, 28, 56 and 70 for subsequent DNA extraction and metagenomic sequencing. Total bacterial counts in the colostrum were markedly higher in the CON group than in the PAT group. Pasteurized colostrum administration substantially reduced the ARO diversity and diminishes the abundance of Enterobacteriaceae, thereby decreasing their contribution to resistance genes. Pasteurization also reduced glucoside hydrolase-66 activity in 3-day-old calves which led to an increase in the activity of aminoglycoside antibiotics, resulting in 52.63 % of PAT-enriched bacteria acquiring aminoglycoside resistance genes. However, from the perspective of overall microbial community, the proportion of aminoglycoside, beta-lactam and tetracycline resistance genes carried by microbial community in PAT group was lower than CON group (P < 0.05). Fecal samples from the PAT group contained greater abundances of Subdoligranulum (P < 0.05) and Lachnospiraceae_NK4A136_group (P < 0.05) on days 28 and 70 compared to CON. Network analysis and abundance variations of the different bacteria obtained by linear discriminant analysis effect size analysis showed that pasteurized colostrum feeding reduced the interactions among related bacteria and maintained stability of the hind-gut microbiome. In conclusion, these findings underscore the intricate interactions between early diet, calf resistance-gene transmission and microbial dynamics, which should be carefully considered in calf-rearing practices.
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Affiliation(s)
- Tianyu Chen
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Shuai Liu
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Shuyuan Zhang
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Haotong Song
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Yimin Zhuang
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Jiaying Ma
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Jianxin Xiao
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; Key Laboratory of Low Carbon Culture and Safety Production in Cattle in Sichuan, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Jingjun Wang
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Yulin Ma
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Yajing Wang
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Wei Wang
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Shengli Li
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Zhijun Cao
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
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He S, Yuan Z, Dai S, Wang Z, Zhao S, Wang R, Li Q, Mao H, Wu D. Intensive feeding alters the rumen microbiota and its fermentation parameters in natural grazing yaks. Front Vet Sci 2024; 11:1365300. [PMID: 38645650 PMCID: PMC11027562 DOI: 10.3389/fvets.2024.1365300] [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: 01/04/2024] [Accepted: 03/15/2024] [Indexed: 04/23/2024] Open
Abstract
Introduction Amidst the challenging environmental conditions characterized by low oxygen levels and cold temperatures on the plateau, alterations in nutrient supply emerge as pivotal factors influencing the survival and reproduction of yaks. Intensive feeding stands out as a substantial mechanism for nutrient provision, initiating discernible changes in the host's rumen flora. Within the extreme natural conditions prevailing in the plateau area of northwest Yunnan, China, there exists a con-strained comprehension of the variations in rumen microflora, fermentation parameters, and growth responses exhibited by yaks subjected to intensive feeding. Methods This study employs 16S rRNA and ITS sequencing methods to scrutinize the rumen flora of yaks engaged in both natural grazing (G) and intensive feeding (F) on the plateau. Results The outcomes unveil that, during the severe winter season, yaks adeptly modulate the abundance and diversity of rumen flora in response to dietary modifications under intensive feeding, aiming to optimize the efficient utilization of dietary fiber and energy. Principal Coordinate Analysis (PCoA) illustrates a substantial alteration in the rumen microbial community of naturally grazing yaks when exposed to intensive feeding. The natural grazing group manifests a higher prevalence of Firmicutes and Bacteroidetes, while the intensive feeding group exhibits heightened levels of Prevotella in the rumen. The Rikenellaceae _ RC9 _ gut_ group, associated with mycobacteria, prevails more abundantly in the natural grazing setting. PICRUSt2 analysis indicates that intensive feeding induces bacterial gene overexpression linked to protein metabolism. Rumen fungi showcase heightened diversity under intensification. Intensive feeding results in an augmented abundance of non-fiber-degrading bacteria and semi-fiber-degrading bacteria, accompanied by elevated concentrations of Volatile Fatty Acids (VFA). Discussion These findings yield novel insights into the shifts in the rumen microflora of yaks acclimated to intensive feeding in high-altitude environments, provide an important reference for the nutritional regulation of supplemental feeding of natural grazing yaks in the cold season, ultimately contributing to their enhanced growth.
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Affiliation(s)
- Shichun He
- Key Laboratory of Animal Nutrition and Feed Science of Yunnan Province, Yunnan Agricultural University, Kunming, China
| | - Zaimei Yuan
- Kunming Animal Disease Prevention and Control Center, Kunming, China
| | - Sifan Dai
- Key Laboratory of Animal Nutrition and Feed Science of Yunnan Province, Yunnan Agricultural University, Kunming, China
| | - Zibei Wang
- Key Laboratory of Animal Nutrition and Feed Science of Yunnan Province, Yunnan Agricultural University, Kunming, China
| | - Shusheng Zhao
- Key Laboratory of Animal Nutrition and Feed Science of Yunnan Province, Yunnan Agricultural University, Kunming, China
| | - Rongjiao Wang
- Panzhihua Academy of Agricultural and Forestry Sciences, Panzhihua, China
| | - Qing Li
- Key Laboratory of Animal Nutrition and Feed Science of Yunnan Province, Yunnan Agricultural University, Kunming, China
| | - Huaming Mao
- Key Laboratory of Animal Nutrition and Feed Science of Yunnan Province, Yunnan Agricultural University, Kunming, China
| | - Dongwang Wu
- Key Laboratory of Animal Nutrition and Feed Science of Yunnan Province, Yunnan Agricultural University, Kunming, China
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Gao H, Chi X, Song P, Gu H, Xu B, Cai Z, Jiang F, Li B, Zhang T. Maintaining the native gut microbiota of bharal ( Pseudois nayaur) is crucial in ex situ conservation. Front Microbiol 2024; 15:1357415. [PMID: 38533336 PMCID: PMC10963425 DOI: 10.3389/fmicb.2024.1357415] [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: 12/18/2023] [Accepted: 02/26/2024] [Indexed: 03/28/2024] Open
Abstract
As wildlife protection continue to strengthen, research on the gut microbiota of wildlife is increasing. Carrying out conservation and research on endangered species in the Qinghai Tibet Plateau plays an important role in global biodiversity conservation. This study utilized 16S rRNA sequencing of fecal samples to investigate the composition, function, and changes of the gut microbiota of bharal in different environments, seasons, and genders. The results showed that Firmicutes and Bacteroidota were the dominant phyla and UCG-005, Bacteroides, UCG-010 were the dominant genera of bharal. In the wild, the abundance of Firmicutes increased which was conducive to the decomposition and utilization of cellulose, hemicellulose, and carbohydrate. Due to the variety of food types and nutrition in different seasons, the composition and function of gut microbiota were obviously different between genders. Compared with zoo, higher alpha diversity, a more complex gut microbiota network structure, and stronger metabolic function were conducive bharal to adapting to the wild environment. In the zoo, captive bharals were fed foods rich in high fat and protein, which increased the abundance of Bacteroidota and reduced the alpha diversity of gut microbiota. A fixed diet unified the gut microbiota between genders of bharal. It is very important to pay attention to the impact of captive environments and maintain the native gut microbiota of wildlife.
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Affiliation(s)
- Hongmei Gao
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, China
- Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Xining, Qinghai, China
| | - Xiangwen Chi
- Students’ Affairs Division, Qinghai University, Xining, China
| | - Pengfei Song
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, China
- Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Xining, Qinghai, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Haifeng Gu
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, China
- Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Xining, Qinghai, China
| | - Bo Xu
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, China
- Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Xining, Qinghai, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Zhenyuan Cai
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, China
- Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Xining, Qinghai, China
| | - Feng Jiang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, China
- Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Xining, Qinghai, China
| | - Bin Li
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, China
- Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Xining, Qinghai, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Tongzuo Zhang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, China
- Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Xining, Qinghai, China
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10
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Luo T, Zhu J, Li K, Li Y, Li J, Chen Y, Shi H. Crosstalk between innate immunity and rumen-fecal microbiota under the cold stress in goats. Front Immunol 2024; 15:1363664. [PMID: 38476231 PMCID: PMC10928366 DOI: 10.3389/fimmu.2024.1363664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 02/08/2024] [Indexed: 03/14/2024] Open
Abstract
The balance of the microbiome, which is sensitive to temperature changes, plays a crucial role in maintaining overall health and reducing the risk of diseases. However, the specific mechanisms by which immunity and microbiota interact to adapt to cold stress have yet to be addressed. In this study, Nanjiang Yellow goats were chosen as a model and sampled during the cold (winter, cold stress) and warm (spring) seasons, respectively. Analyses of serum immune factors, as well as the composition of rumen and fecal microbial communities, were conducted to explore the crosstalk between microbiota and innate immunity under cold stress. Significantly increased levels of IgA (P < 0.01) were observed in the cold season compared to the warm season. Conversely, the levels of IL-2 (P = 0.02) and IL-6 (P < 0.01) diminished under cold stress. However, no significant differences were observed in IgG (P = 0.89), IgM (P = 0.42), and IL-4 (P = 0.56). While there were no significant changes in the diversity of bacterial communities between the warm and cold seasons, positive correlations between serum IgA, IL-2, IL-6 concentrations and several genera were observed. Furthermore, the weighted gene co-expression network analysis indicated that the microbiota enriched in the MEbrown module positively correlated with IgA, while the microbiota enriched in the MEblue module positively correlated with IL-2 and IL-6. The strong correlation between certain probiotics, including Alistipes, Bacteroides, Blautia, and Prevotellaceae_UCG.004, and the concentration of IL-2, and IL-6 suggests their potential role in immunomodulatory properties. This study provides valuable insights into the crosstalk between microbial communities and immune responses under the challenge of cold stress. Further studies on the immunomodulatory properties of these probiotics would contribute to the development of strategies to enhance the stress resistance of animals for improved overall health and survival.
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Affiliation(s)
- Tao Luo
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Jiangjiang Zhu
- Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Key Laboratory of Sichuan Province, Chengdu, China
| | - Kerui Li
- Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Key Laboratory of Sichuan Province, Chengdu, China
| | - Yongtao Li
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Jun Li
- College of Animal Science and Technology, Henan University of Animal Husbandry and Economy, Zhengzhou, China
| | - Yu Chen
- Institute of Nanjiang Yellow Goat Sciences, Bazhong, Sichuan, China
| | - Hengbo Shi
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, China
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, Hangzhou, China
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11
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Wang F, Sha Y, Liu X, He Y, Hu J, Wang J, Li S, Shao P, Chen X, Yang W, Chen Q, Gao M, Huang W. Study of the Interactions between Muscle Fatty Acid Composition, Meat Quality-Related Genes and the Ileum Microbiota in Tibetan Sheep at Different Ages. Foods 2024; 13:679. [PMID: 38472792 DOI: 10.3390/foods13050679] [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: 01/12/2024] [Revised: 02/06/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024] Open
Abstract
The intestinal microbiota of ruminants is an important factor affecting animal production and health. Research on the association mechanism between the intestinal microbiota and meat quality of ruminants will play a positive role in understanding the formation mechanism of meat quality in ruminants and improving production efficiency. In this study, the fatty acid composition and content, expression of related genes, and structural characteristics of the ileum microbiota of ewes of Tibetan sheep at different ages (4 months, 1.5 years, 3.5 years, and 6 years) were detected and analyzed. The results revealed significant differences in fatty acid composition and content in the muscle of Tibetan sheep at different ages (p < 0.05); in addition, the content of MUFAs in the longissimus dorsi muscle and leg muscle was higher. Similarly, the expressions of muscle-related genes differed among the different age groups, and the expression of the LPL, SCD, and FABP4 genes was higher in the 1.5-year-old group. The ileum microbiota diversity was higher in the 1.5-year-old group, the Romboutsia abundance ratio was significantly higher in the 1.5-year-old group (p < 0.05), and there was a significant positive correlation with oleic acid (C18:1n9c) (p < 0.05). In conclusion, the content of beneficial fatty acids in the longissimus dorsi muscle and leg muscle of Tibetan sheep was higher at 1.5 years of age, and the best slaughter age was 1.5 years. This study provides a reference for in-depth research on the mechanism of the influence of the gut microbiota on meat quality and related regulation.
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Affiliation(s)
- Fanxiong Wang
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Yuzhu Sha
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Xiu Liu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Yanyu He
- School of Fundamental Sciences, Massey University, Palmerston North 4410, New Zealand
| | - Jiang Hu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Jiqing Wang
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Shaobin Li
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Pengyang Shao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Xiaowei Chen
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Wenxin Yang
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Qianling Chen
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Min Gao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Wei Huang
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
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12
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Li J, Li Y, Xiao H, Li W, Ye F, Wang L, Li Y, Wang C, Wu Y, Xuan R, Huang Y, Huang J. The intestinal microflora diversity of aboriginal chickens in Jiangxi province, China. Poult Sci 2024; 103:103198. [PMID: 38016408 PMCID: PMC10696398 DOI: 10.1016/j.psj.2023.103198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 10/06/2023] [Accepted: 10/11/2023] [Indexed: 11/30/2023] Open
Abstract
Intestinal microbiota can coevolve with host to form symbiotic relationship and be participated in the regulation of host physiological function. At present, there is no clear explanation on the effect of intestinal microflora in Jiangxi aboriginal chickens. Here, we investigated the association between gut microbiota and host genome of Jiangxi local chickens using 16S rRNA sequencing and genome-wide association studies (GWAS). The results showed that the breeds and genders had important effects on the intestinal microbiota of chickens. A total of 28 SNPs in 14 regions of the chicken genome were related to the relative abundance of microorganisms in 5 genera: Clostridium_sensu_stricto_1, Enterococcus, Gallibacterium, Turicibacter, and Rikenellaceae_RC9_gut_group. A total of 17 candidate genes were identified composition of chicken microbiome and show an association between the host genome and the chicken intestinal microbiota, which also unveiled the diversity of intestinal microbes in Jiangxi chickens. Given the correlation between chicken genome and intestinal microbe found in the present study, a new idea for the protection of aboriginal chicken genetic resources in China could be provided.
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Affiliation(s)
- Jiawei Li
- College of Life Science, Jiangxi Science and Technology Normal University, Nanchang, China
| | - Yuping Li
- College of Life Science, Jiangxi Science and Technology Normal University, Nanchang, China
| | - Huiyuan Xiao
- College of Life Science, Jiangxi Science and Technology Normal University, Nanchang, China
| | - Wen Li
- Changsheng Town People's Government of Ningdu County, Ganzhou, China
| | - Fengchun Ye
- Jiangxi Yifeng County Qiaoxi Veterinary Station, Yichun, China
| | - Liping Wang
- College of Life Science, Jiangxi Science and Technology Normal University, Nanchang, China
| | - Yuhang Li
- College of Life Science, Jiangxi Science and Technology Normal University, Nanchang, China
| | - Cong Wang
- College of Life Science, Jiangxi Science and Technology Normal University, Nanchang, China
| | - Yan Wu
- College of Life Science, Jiangxi Science and Technology Normal University, Nanchang, China
| | - Rui Xuan
- College of Life Science, Jiangxi Science and Technology Normal University, Nanchang, China
| | - Yuxuan Huang
- College of Life Science, Jiangxi Science and Technology Normal University, Nanchang, China
| | - Jianhua Huang
- College of Life Science, Jiangxi Science and Technology Normal University, Nanchang, China.
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13
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Fonoll X, Zhu K, Aley L, Shrestha S, Raskin L. Simulating Rumen Conditions Using an Anaerobic Dynamic Membrane Bioreactor to Enhance Hydrolysis of Lignocellulosic Biomass. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:1741-1751. [PMID: 38184844 DOI: 10.1021/acs.est.3c06478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
An anaerobic dynamic membrane bioreactor (AnDMBR) mimicking rumen conditions was developed to enhance the hydrolysis of lignocellulosic materials and the production of volatile fatty acids (VFAs) when treating food waste. The AnDMBR was inoculated with cow rumen content and operated at a 0.5 day hydraulic retention time, 2-4 day solids retention time, a temperature of 39 °C, and a pH of 6.3, characteristics similar to those of a rumen. Removal rates of neutral detergent fiber and acid detergent fiber of 58.9 ± 8.4 and 69.0 ± 8.6%, respectively, and a VFA yield of 0.55 ± 0.12 g VFA as chemical oxygen demand g volatile solids (VS)fed-1 were observed at an organic loading rate of 18 ± 2 kg VS m-3 day-1. The composition and activity of the microbial community remained consistent after biofilm disruption, bioreactor upset, and reinoculation. Up to 66.7 ± 5.7% of the active microbial populations and 51.0 ± 7.0% of the total microbial populations present in the rumen-mimicking AnDMBR originated from the inoculum. This study offers a strategy to leverage the features of a rumen; the AnDMBR achieved high hydrolysis and fermentation rates even when treating substrates different from those fed to ruminants.
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Affiliation(s)
- Xavier Fonoll
- Department of Civil and Environmental Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
- Energy Research & Innovation, Great Lakes Water Authority, 9300 W Jefferson Avenue, Detroit, Michigan 48209, United States
| | - Kuang Zhu
- Department of Civil and Environmental Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Lucy Aley
- Department of Civil and Environmental Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Shilva Shrestha
- Department of Civil and Environmental Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
- Department of Environmental Health and Engineering, Johns Hopkins University, Baltimore, Maryland 21205, United States
| | - Lutgarde Raskin
- Department of Civil and Environmental Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
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14
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Sha Y, Liu X, Pu X, He Y, Wang J, Zhao S, Shao P, Wang F, Xie Z, Chen X, Yang W. Characterizing the dynamics of the rumen microbiota, its metabolites, and blood metabolites across reproductive stages in Small-tailed Han sheep. Microbiol Spectr 2023; 11:e0286723. [PMID: 37948319 PMCID: PMC10715166 DOI: 10.1128/spectrum.02867-23] [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: 07/17/2023] [Accepted: 10/23/2023] [Indexed: 11/12/2023] Open
Abstract
IMPORTANCE Our study illustrates the succession of the rumen microbiota and its metabolites in Small-tailed Han sheep at different reproductive stages. Among them, Firmicutes and Prevotella, which are related to energy metabolism, increased in abundance during pregnancy, while Fibrobacter, a fiber-degrading bacterium, increased in abundance during lactation. At the same time, the microbial metabolic profile and serum metabolic profile characteristics of different reproductive stages were revealed, and some functional pathways and metabolites related to energy and immunity were found. This study provides a reference for the health management of ruminants during non-pregnancy, pregnancy, and lactation.
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Affiliation(s)
- Yuzhu Sha
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou, China
| | - Xiu Liu
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou, China
| | - Xiaoning Pu
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou, China
| | - Yanyu He
- School of Fundamental Sciences, Massey University, Palmerston North, New Zealand
| | - Jiqing Wang
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou, China
| | - Shengguo Zhao
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou, China
| | - Pengyang Shao
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou, China
| | - Fanxiong Wang
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou, China
| | - Zhuanhui Xie
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou, China
| | - Xiaowei Chen
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou, China
| | - Wenxin Yang
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou, China
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15
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Sha Y, Guo X, He Y, Li W, Liu X, Zhao S, Hu J, Wang J, Li S, Zhao Z, Hao Z. Synergistic Responses of Tibetan Sheep Rumen Microbiota, Metabolites, and the Host to the Plateau Environment. Int J Mol Sci 2023; 24:14856. [PMID: 37834304 PMCID: PMC10573510 DOI: 10.3390/ijms241914856] [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: 06/28/2023] [Revised: 09/30/2023] [Accepted: 09/30/2023] [Indexed: 10/15/2023] Open
Abstract
Plateau adaptation in animals involves genetic mechanisms as well as coevolutionary mechanisms of the microbiota and metabolome of the animal. Therefore, the characteristics of the rumen microbiome and metabolome, transcriptome, and serum metabolome of Tibetan sheep at different altitudes (4500 m, 3500 m, and 2500 m) were analyzed. The results showed that the rumen differential metabolites at 3500 m and 4500 m were mainly enriched in amino acid metabolism, lipid metabolism, and carbohydrate metabolism, and there was a significant correlation with microbiota. The differentially expressed genes and metabolites at middle and high altitudes were coenriched in asthma, arachidonic acid metabolism, and butanoate and propanoate metabolism. In addition, the serum differential metabolites at 3500 m and 4500 m were mainly enriched in amino acid metabolism, lipid metabolism, and metabolism of xenobiotics by cytochrome P450, and they were also related to microbiota. Further analysis revealed that rumen metabolites accounted for 7.65% of serum metabolites. These common metabolites were mainly enriched in metabolic pathways and were significantly correlated with host genes (p < 0.05). This study found that microbiota, metabolites, and epithelial genes were coenriched in pathways related to lipid metabolism, energy metabolism, and immune metabolism, which may be involved in the regulation of Tibetan sheep adaptation to plateau environmental changes.
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Affiliation(s)
- Yuzhu Sha
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China; (Y.S.); (X.G.); (S.Z.); (J.H.); (J.W.); (S.L.); (Z.Z.); (Z.H.)
| | - Xinyu Guo
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China; (Y.S.); (X.G.); (S.Z.); (J.H.); (J.W.); (S.L.); (Z.Z.); (Z.H.)
| | - Yanyu He
- School of Fundamental Sciences, Massey University, Palmerston North 4410, New Zealand;
| | - Wenhao Li
- Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining 810016, China;
| | - Xiu Liu
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China; (Y.S.); (X.G.); (S.Z.); (J.H.); (J.W.); (S.L.); (Z.Z.); (Z.H.)
| | - Shengguo Zhao
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China; (Y.S.); (X.G.); (S.Z.); (J.H.); (J.W.); (S.L.); (Z.Z.); (Z.H.)
| | - Jiang Hu
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China; (Y.S.); (X.G.); (S.Z.); (J.H.); (J.W.); (S.L.); (Z.Z.); (Z.H.)
| | - Jiqing Wang
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China; (Y.S.); (X.G.); (S.Z.); (J.H.); (J.W.); (S.L.); (Z.Z.); (Z.H.)
| | - Shaobin Li
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China; (Y.S.); (X.G.); (S.Z.); (J.H.); (J.W.); (S.L.); (Z.Z.); (Z.H.)
| | - Zhidong Zhao
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China; (Y.S.); (X.G.); (S.Z.); (J.H.); (J.W.); (S.L.); (Z.Z.); (Z.H.)
| | - Zhiyun Hao
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China; (Y.S.); (X.G.); (S.Z.); (J.H.); (J.W.); (S.L.); (Z.Z.); (Z.H.)
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16
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Sha Y, He Y, Liu X, Shao P, Wang F, Xie Z, Li W, Wang J, Li S, Zhao S, Chen G. Interactions of rumen microbiota and metabolites with meat quality-related genes to regulate meat quality and flavor of Tibetan sheep under nutrient stress in the cold season. J Appl Microbiol 2023; 134:lxad182. [PMID: 37567778 DOI: 10.1093/jambio/lxad182] [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: 06/21/2023] [Revised: 07/26/2023] [Accepted: 08/10/2023] [Indexed: 08/13/2023]
Abstract
AIM The meat of Tibetan sheep has a unique flavor, delicious taste, and superior nutritional value. However, the change of grass will lead to a change in meat quality. This study aimed to explore the potential regulatory mechanisms of microbial metabolites with respect to meat quality traits of Tibetan sheep under nutrient stress in the cold season. METHODS AND RESULTS We determined and analyzed the longissimus dorsi quality, fatty acid composition, expression of genes, and rumen microbial metabolites of Tibetan sheep in cold and warm seasons. The shear force was decreased (P < .05), the meat color a*24 h value was increased (P < .05), and the contents of crude fat (EE) and protein (CP) were decreased in the cold season. Polyunsaturated fatty acids (PUFAs)-linoleic acid and docosahexaenoic acid increased significantly in the cold season (P < .05). The expressions of meat quality genes MC4R, CAPN1, H-FABP, and LPL were significantly higher in the warm season (P < .05), and the CAST gene was significantly expressed in the cold season (P < .01). The different microbial metabolites of Tibetan sheep in the cold and warm seasons were mainly involved in amino acid metabolism, lipid metabolism, and digestive system pathway, and there was some correlation between microbiota and meat quality traits. There are similarities between microbial metabolites enriched in the lipid metabolism pathway and muscle metabolites. CONCLUSION Under nutritional stress in the cold season, the muscle tenderness of Tibetan sheep was improved, and the fat deposition capacity was weakened, but the levels of beneficial fatty acids were higher than those in the warm season, which was more conducive to healthy eating.
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Affiliation(s)
- Yuzhu Sha
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China
| | - Yanyu He
- School of Fundamental Sciences, Massey University, Palmerston North 4410, New Zealand
| | - Xiu Liu
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China
| | - Pengyang Shao
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China
| | - Fanxiong Wang
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China
| | - Zhuanhui Xie
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China
| | - Wenhao Li
- Academy of Animal Science and Veterinary medicine, Qinghai University, Xining 810000, China
| | - Jiqing Wang
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China
| | - Shaobin Li
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China
| | - Shengguo Zhao
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China
| | - Guoshun Chen
- College of Animal Science and Technology/Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China
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17
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Wang XL, Yu N, Ma YX, Zhou HR, Wang C, Wei S, Miao AJ. Potential effects of Ag ion on the host by changing the structure of its gut microbiota. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131879. [PMID: 37336107 DOI: 10.1016/j.jhazmat.2023.131879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 06/05/2023] [Accepted: 06/15/2023] [Indexed: 06/21/2023]
Abstract
Silver (Ag) can change the structure of the gut microbiota (GM), but how such change may affect host health is unknown. In this study, mice were exposed to silver acetate daily for 120 days. During this period, Ag accumulation in the liver was measured, its effects on GM structure were analyzed, and potential metabolic changes in liver and serum were examined. Although Ag accumulation remained unchanged in most treatments, the ratio of Firmicutes to Bacteroidetes at the phylum level increased and changes in the relative abundance of 33 genera were detected, suggesting that Ag altered the energy metabolism of mice via changes in the gut GM. In serum and liver, 34 and 72 differentially expressed metabolites were identified, respectively. The KEGG pathways thus enriched mainly included those involving the metabolism of amino acids, organic acids, lipids, and purine. Strong correlations were found between 33 % of the microorganisms with altered relative abundances and 46 % of the differentially expressed metabolites. The resulting clusters yielded two communities responsible for host inflammation and energy metabolism. Overall, these results demonstrate potential effects of Ag on the host, by changing its GM structure, and the need to consider them when evaluating the health risk of Ag.
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Affiliation(s)
- Xin-Lei Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Mail box 24, Xianlin Road 163, Nanjing, Jiangsu Province 210023, China
| | - Nanyang Yu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Mail box 24, Xianlin Road 163, Nanjing, Jiangsu Province 210023, China
| | - Ying-Xue Ma
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Mail box 24, Xianlin Road 163, Nanjing, Jiangsu Province 210023, China
| | - Hao-Ran Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Mail box 24, Xianlin Road 163, Nanjing, Jiangsu Province 210023, China
| | - Chuan Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Mail box 24, Xianlin Road 163, Nanjing, Jiangsu Province 210023, China
| | - Si Wei
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Mail box 24, Xianlin Road 163, Nanjing, Jiangsu Province 210023, China.
| | - Ai-Jun Miao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Mail box 24, Xianlin Road 163, Nanjing, Jiangsu Province 210023, China.
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Xiong Y, Wang X, Li X, Guo L, Yang F, Ni K. Exploring the rumen microbiota of Hu lambs in response to diet with paper mulberry. Appl Microbiol Biotechnol 2023:10.1007/s00253-023-12614-0. [PMID: 37306709 DOI: 10.1007/s00253-023-12614-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/26/2023] [Accepted: 05/31/2023] [Indexed: 06/13/2023]
Abstract
Paper mulberry (Broussonetia papyrifera), as a new woody forage with high-protein characteristic, is being widely used in ruminant feeding. However, little is known about the comprehensive microbiota picture of whole ruminal niches (liquid, solid, and epithelium) under paper mulberry diet. To gain a better understanding of feeding paper mulberry on the rumen microbiota, the effects of fresh paper mulberry, paper mulberry silage, or a conventional high-protein alfalfa silage on rumen fermentation products and microbiota in rumen niches of Hu lambs were studied. Forty-five Hu lambs were randomly divided into 3 treatments with 15 replicates in each treatment. No significant difference was observed among treatments in the average daily gain (ADG). The fresh paper mulberry treatment had lower (P < 0.05) pH and higher (P < 0.05) total volatile fatty acids (TVFA) compared with silage treatments, but the fermentation parameters did not show significant differences between paper mulberry silage and alfalfa silage treatments. The Shannon index did not show a significant difference (P < 0.05) among treatments except between fresh paper mulberry and alfalfa silage treatment in rumen epithelial niches. Butyrivibrio and Treponema were the predominant genera in the rumen epithelial fraction, while Prevotella and Rikenellaceae_RC9 dominated in both rumen liquid and solid fractions. These results indicated the paper mulberry supplement did not have distinct impact on the microbial diversity and growth performance compared with alfalfa silage, especially for paper mulberry silage, which might help us develop an alternative animal feeding strategy of replacing alfalfa with paper mulberry. KEY POINTS: • Feeding paper mulberry silage did not show significant impact on the growth performance compared with alfalfa silage treatment. • Feeding fresh paper mulberry reduced rumen pH value and increased total volatile fatty acid. • The microbial diversity did not show significant difference among treatments.
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Affiliation(s)
- Yi Xiong
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Xin Wang
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Xiaomei Li
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Linna Guo
- College of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Fuyu Yang
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, China.
- College of Animal Science, Guizhou University, Guiyang, 550525, China.
| | - Kuikui Ni
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, China.
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Cui X, Wang Z, Fan Q, Chang S, Yan T, Hou F. Ligularia virgaurea improved nutrient digestion, ruminal fermentation, and bacterial composition in Tibetan sheep grazing on the Qinghai–Tibetan Plateau in winter. Anim Feed Sci Technol 2023. [DOI: 10.1016/j.anifeedsci.2023.115628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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20
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Tang Q, He R, Huang F, Liang Q, Zhou Z, Zhou J, Wang Q, Zou C, Gu Q. Effects of ensiling sugarcane tops with bacteria-enzyme inoculants on growth performance, nutrient digestibility, and the associated rumen microbiome in beef cattle. J Anim Sci 2023; 101:skad326. [PMID: 37813104 PMCID: PMC10636847 DOI: 10.1093/jas/skad326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 10/07/2023] [Indexed: 10/11/2023] Open
Abstract
Major challenges when ensiling sugarcane tops include fermentation that results in high quantities of alcohol and decrease in nutrient digestibility due to the accumulation of fiber components. Increased efforts to apply bacteria-enzyme inoculants in silage have the potential to improve nutrient digestibility. This study aimed to evaluate the effects of ensiling sugarcane tops with bacteria-enzyme inoculants or mixed bacterial inoculants on growth performance, nutrient digestibility, and rumen microbiome in beef cattle. Chopped sugarcane tops were ensiled in plastic bags for 60 d after application of 1) no inoculant (control check, CK); 2) bacteria-enzyme inoculants containing Pediococcus acidilactici, Saccharomyces cerevisiae, cellulase, and xylanase (T1, viable colony-forming units of each bacterial strain ≥108 CFU/g; enzyme activity of each enzyme ≥200 U/g); or 3) mixed bacterial inoculants containing Lactobacillus plantarum, Bacillus subtilis, and Aspergillus oryzae (T2, viable colony-forming units of each bacterial strain ≥107 CFU/g). Silages were fed to eighteen Holstein bull calves (n = 6/treatment) weighing 163.83 ± 7.13 kg to determine intake in a 49-d experimental period. The results showed that beef cattle-fed T1 silage or T2 silage had a significantly higher (P < 0.05) average daily gain than those fed CK silage, but the difference in dry matter intake was not significant (P > 0.05). The apparent digestibility of crude protein (CP) and acid detergent fiber (ADF) were higher (P < 0.05) for beef cattle-fed T1 silage or T2 silage than for those fed CK silage. The rumen bacterial community of beef cattle-fed T1 silage or T2 silage had a tendency to increase (P > 0.05) abundance of Firmicutes and Rikenellaceae_RC9_gut_group than those fed CK silage. Rumen fungal communities of beef cattle-fed T1 or T2 silage had a tendency to increase (P > 0.05) abundance of Mortierellomycota and of Mortierella than those fed CK silage. Spearman's rank correlation coefficient showed that the apparent digestibility of ADF for beef cattle was positively correlated with unclassified_p_Ascomycota of the fungal genera (P < 0.05). Neocalimastigomycota of the fungal phyla was strongly positively correlated with the apparent digestibility of neutral detergent fiber (NDF) (P < 0.05). Ruminococcus was positively correlated with the apparent digestibility of CP (P < 0.05). It was concluded that both T1 and T2 improved the growth performance of beef cattle by improving the ruminal apparent digestibility of CP and ADF, and had no significant impact on major rumen microbial communities in beef cattle.
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Affiliation(s)
- Qingfeng Tang
- Collegeof Animal Science and Technology, Guangxi University, Nanning, Guangxi 530004, China
| | - Renchun He
- The Animal Husbandry Research Institute, Guangxi Vocational University of Agriculture, Nanning, Guangxi 530000, China
| | - Feng Huang
- Collegeof Animal Science and Technology, Guangxi University, Nanning, Guangxi 530004, China
| | - Qimei Liang
- The Animal Husbandry Research Institute, Guangxi Vocational University of Agriculture, Nanning, Guangxi 530000, China
| | - Zhiyang Zhou
- The Animal Husbandry Research Institute, Guangxi Vocational University of Agriculture, Nanning, Guangxi 530000, China
| | - Junhua Zhou
- The Animal Husbandry Research Institute, Guangxi Vocational University of Agriculture, Nanning, Guangxi 530000, China
| | - Qizhi Wang
- The Animal Husbandry Research Institute, Guangxi Vocational University of Agriculture, Nanning, Guangxi 530000, China
| | - Caixia Zou
- Collegeof Animal Science and Technology, Guangxi University, Nanning, Guangxi 530004, China
| | - Qichao Gu
- Collegeof Animal Science and Technology, Guangxi University, Nanning, Guangxi 530004, China
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21
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Russo N, Floridia V, D’Alessandro E, Lopreiato V, Pino A, Chiofalo V, Caggia C, Liotta L, Randazzo CL. Influence of olive cake dietary supplementation on fecal microbiota of dairy cows. Front Microbiol 2023; 14:1137452. [PMID: 37206333 PMCID: PMC10188969 DOI: 10.3389/fmicb.2023.1137452] [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: 01/04/2023] [Accepted: 04/17/2023] [Indexed: 05/21/2023] Open
Abstract
Olive by-products represent a valuable low-price feed supplement for animal nutrition. In the present study, the effect of the dietary destoned olive cake supplementation, on both composition and dynamics of the fecal bacterial biota of cow, was assessed by Illumina MiSeq analysis of the 16S rRNA gene. In addition, metabolic pathways were predicted by using the PICRUSt2 bioinformatic tool. Eighteen lactating cows, according to the body condition score, the days from calving, and the daily milk production were homogeneously allocated into two groups, control or experimental, and subjected to different dietary treatments. In detail, the experimental diet contained, along with the components of the control one, 8% of destoned olive cake. Metagenomics data revealed significant differences in abundance rather than in richness between the two groups. Results showed that Bacteroidota and Firmicutes were identified as the dominant phyla, accounting for over 90% of the total bacterial population. The Desulfobacterota phylum, able to reduce sulfur compounds, was detected only in fecal samples of cows allocated to the experimental diet whereas the Elusimicrobia phylum, a common endosymbiont or ectosymbiont of various flagellated protists, was detected only in cows subjected to the control diet. In addition, both Oscillospiraceae and Ruminococcaceae families were mainly found in the experimental group whereas fecal samples of control cows showed the presence of Rikenellaceae and Bacteroidaceae families, usually associated with the high roughage or low concentrate diet. Based on the PICRUSt2 bioinformatic tool, pathways related to carbohydrate, fatty acid, lipid, and amino acids biosynthesis were mainly up regulated in the experimental group. On the contrary, in the control group, the metabolic pathways detected with the highest occurrence were associated with amino acids biosynthesis and degradation, aromatic compounds degradation, nucleosides and nucleotides biosynthesis. Hence, the present study confirms that the destoned olive cake is a valuable feed supplement able to modulate the fecal microbiota of cows. Further studies will be conducted in order to deepen the inter-relationships between the GIT microbiota and the host.
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Affiliation(s)
- Nunziatina Russo
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
- ProBioEtna SRL, Spin-Off of University of Catania, Catania, Italy
| | - Viviana Floridia
- Animal Production Unit, Department of Veterinary Sciences, University of Messina, Messina, Italy
| | - Enrico D’Alessandro
- Animal Production Unit, Department of Veterinary Sciences, University of Messina, Messina, Italy
| | - Vincenzo Lopreiato
- Animal Production Unit, Department of Veterinary Sciences, University of Messina, Messina, Italy
| | - Alessandra Pino
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
- ProBioEtna SRL, Spin-Off of University of Catania, Catania, Italy
- CERNUT, Interdepartmental Research Centre in Nutraceuticals and Health Products, University of Catania, Catania, Italy
- *Correspondence: Alessandra Pino,
| | - Vincenzo Chiofalo
- Animal Production Unit, Department of Veterinary Sciences, University of Messina, Messina, Italy
- Consortium Research of Meat and Agribusiness Chain, Messina, Italy
| | - Cinzia Caggia
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
- ProBioEtna SRL, Spin-Off of University of Catania, Catania, Italy
- CERNUT, Interdepartmental Research Centre in Nutraceuticals and Health Products, University of Catania, Catania, Italy
| | - Luigi Liotta
- Animal Production Unit, Department of Veterinary Sciences, University of Messina, Messina, Italy
| | - Cinzia Lucia Randazzo
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
- ProBioEtna SRL, Spin-Off of University of Catania, Catania, Italy
- CERNUT, Interdepartmental Research Centre in Nutraceuticals and Health Products, University of Catania, Catania, Italy
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Betancur-Murillo CL, Aguilar-Marín SB, Jovel J. Prevotella: A Key Player in Ruminal Metabolism. Microorganisms 2022; 11:microorganisms11010001. [PMID: 36677293 PMCID: PMC9866204 DOI: 10.3390/microorganisms11010001] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/15/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022] Open
Abstract
Ruminants are foregut fermenters that have the remarkable ability of converting plant polymers that are indigestible to humans into assimilable comestibles like meat and milk, which are cornerstones of human nutrition. Ruminants establish a symbiotic relationship with their microbiome, and the latter is the workhorse of carbohydrate fermentation. On the other hand, during carbohydrate fermentation, synthesis of propionate sequesters H, thus reducing its availability for the ultimate production of methane (CH4) by methanogenic archaea. Biochemically, methane is the simplest alkane and represents a downturn in energetic efficiency in ruminants; environmentally, it constitutes a potent greenhouse gas that negatively affects climate change. Prevotella is a very versatile microbe capable of processing a wide range of proteins and polysaccharides, and one of its fermentation products is propionate, a trait that appears conspicuous in P. ruminicola strain 23. Since propionate, but not acetate or butyrate, constitutes an H sink, propionate-producing microbes have the potential to reduce methane production. Accordingly, numerous studies suggest that members of the genus Prevotella have the ability to divert the hydrogen flow in glycolysis away from methanogenesis and in favor of propionic acid production. Intended for a broad audience in microbiology, our review summarizes the biochemistry of carbohydrate fermentation and subsequently discusses the evidence supporting the essential role of Prevotella in lignocellulose processing and its association with reduced methane emissions. We hope this article will serve as an introduction to novice Prevotella researchers and as an update to others more conversant with the topic.
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Affiliation(s)
- Claudia Lorena Betancur-Murillo
- Escuela de Ciencias Básicas, Tecnología e Ingeniería, Universidad Nacional Abierta y a Distancia, UNAD, Bogotá 111511, Colombia
| | | | - Juan Jovel
- Faculty of Veterinary Medicine, University of Calgary, 3280 Hospital Dr NW, Calgary, AB T2N 4Z6, Canada
- Correspondence:
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23
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Shi F, Zhao X, Cheng Q, Lin H, Zheng H, Zhou Q. High-Energy-Density Organic Amendments Enhance Soil Health. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12212. [PMID: 36231512 PMCID: PMC9566092 DOI: 10.3390/ijerph191912212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/20/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
Soil microbial biomass (SMB) and soil microbial communities (SMCs) are the key factors in soil health and agricultural sustainability. We hypothesized that low bioavailable carbon (C) and energy were the key limiting factors influencing soil microbial growth and developed a new fertilization system to address this: the simultaneous application of mineral fertilizers and high-energy-density organic amendments (HED-OAs). A microcosm soil incubation experiment and a Brassica rapa subsp. chinensis pot culture experiment were used to test the effects of this new system. Compared to mineral fertilizer application alone, the simultaneous input of fertilizers and vegetable oil (SIFVO) achieved a bacterial abundance, fungal abundance, and fungal:bacterial ratio that were two orders of magnitude higher, significantly higher organic C and nitrogen (N) content, significantly lower N loss, and nearly net-zero N2O emissions. We proposed an energy and nutrient threshold theory to explain the observed bacterial and fungal growth characteristics, challenging the previously established C:N ratio determination theory. Furthermore, SIFVO led to microbial community improvements (an increased fungal:bacterial ratio, enriched rhizosphere bacteria and fungi, and reduced N-transformation bacteria) that were beneficial for agricultural sustainability. A low vegetable oil rate (5 g/kg) significantly promoted Brassica rapa subsp. chinensis growth and decreased the shoot N content by 35%, while a high rate caused severe N deficiency and significantly inhibited growth of the crop, confirming the exceptionally high microbial abundance and indicating severe microbe-crop competition for nutrients in the soil.
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Affiliation(s)
- Feifan Shi
- College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xinyue Zhao
- College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qilu Cheng
- Institute of Environment Resources Soil and Fertilizers, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Hui Lin
- Institute of Environment Resources Soil and Fertilizers, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Huabao Zheng
- Zhejiang Province Key Laboratory of Soil Contamination Bioremediation, Zhejiang A&F University, Hangzhou 311300, China
| | - Qifa Zhou
- College of Life Sciences, Zhejiang University, Hangzhou 310058, China
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