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Mao J, Wang L, Wang Z, Xue B, Peng Q, Hu R, Xiao J. High concentrate diets altered the structure and function of rumen microbiome in goats. Front Microbiol 2024; 15:1416883. [PMID: 39144219 PMCID: PMC11322510 DOI: 10.3389/fmicb.2024.1416883] [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: 04/13/2024] [Accepted: 07/16/2024] [Indexed: 08/16/2024] Open
Abstract
This study used metatranscriptomics to investigate the effects of concentrate diet level on rumen microbiome composition and function in goats. A total of 12 healthy 120-day-old Da'er goats were randomly allotted into two treatments: L group (low dietary concentrate level group, concentrate: forage ratio was 25: 75) and H group (high dietary concentrate level group, concentrate: forage ratio was 80: 20). The study included a 10-day pre-feeding period and a 60-day growth experiment. The results showed that compared with the L group, the average daily gain and the slaughter rate in the H group were increased, while the F/G was decreased; the concentration of lactate and ammonia nitrogen, and the proportion of butyrate and valerate in the rumen of the H group were increased, while the proportion of acetate, and the ratio of acetate to propionate were decreased (p < 0.05). Among rumen bacteria, compared with the L group, the H group significantly decreased the relative abundance of Firmicutes and Fibrobacteria at the phylum level, decreased the relative abundance of Bacteroidetes, Fibrobacter, and Sarcina and increased the relative abundance of Clostridium at the genus level, and decreased the relative abundance of Fibrobacter succinogenes, Sarcina sp. DSM 11001, Oscillibacter sp. KLE 1728, and Ruminococcus flavefaciens and increased the relative abundance of Clostridium sp. ND2 and Firmicutes bacteria CAG: 103 at the species level (p < 0.05). Among rumen fungi, the relative abundance of Basidiomycota, Neocallimastigomycota, Mortierella, Mortierella elongata, and Gonapodyna prolifera was lower in the H group than that in the L group (p < 0.05). Functional annotation results showed that the abundance of Glycoside hydrolases genes in rumen microbiome was significantly decreased in the H group compared to the L group (p < 0.05). The result of KEGG DEGs enrichment analysis showed that the gene expression of cellulose 1,4-β-cellobiosidase, acetyl-CoA hydrolase, lactate dehydrogenase, succinate-semialdehyde dehydrogenase, D-malate dehydrogenase and related genes in methane production pathways of rumen microbiome was decreased in the H group. In summary, feeding high concentrate diets improved the production performance of goats, altered the structure and composition of rumen microbiome and changed the function of rumen microbiome.
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Affiliation(s)
| | - Lizhi Wang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
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Liu Y, Ma L, Riqing D, Qu J, Chen J, Zhandu D, Li B, Jiang M. Microbial Metagenomes and Host Transcriptomes Reveal the Dynamic Changes of Rumen Gene Expression, Microbial Colonization and Co-Regulation of Mineral Element Metabolism in Yaks from Birth to Adulthood. Animals (Basel) 2024; 14:1365. [PMID: 38731369 PMCID: PMC11083404 DOI: 10.3390/ani14091365] [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: 04/05/2024] [Revised: 04/26/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024] Open
Abstract
Yaks are the main pillar of plateau animal husbandry and the material basis of local herdsmen's survival. The level of mineral elements in the body is closely related to the production performance of yaks. In this study, we performed a comprehensive analysis of rumen epithelial morphology, transcriptomics and metagenomics to explore the dynamics of rumen functions, microbial colonization and functional interactions in yaks from birth to adulthood. Bacteria, eukaryotes, archaea and viruses colonized the rumen of yaks from birth to adulthood, with bacteria being the majority. Bacteroidetes and Firmicutes were the dominant phyla in five developmental stages, and the abundance of genus Lactobacillus and Fusobacterium significantly decreased with age. Glycoside hydrolase (GH) genes were the most highly represented in five different developmental stages, followed by glycosyltransferases (GTs) and carbohydrate-binding modules (CBMs), where the proportion of genes coding for CBMs increased with age. Integrating host transcriptome and microbial metagenome revealed 30 gene modules related to age, muscle layer thickness, nipple length and width of yaks. Among these, the MEmagenta and MEturquoise were positively correlated with these phenotypic traits. Twenty-two host genes involved in transcriptional regulation related to metal ion binding (including potassium, sodium, calcium, zinc, iron) were positively correlated with a rumen bacterial cluster 1 composed of Alloprevotella, Paludibacter, Arcobacter, Lactobacillus, Bilophila, etc. Therefore, these studies help us to understand the interaction between rumen host and microorganisms in yaks at different ages, and further provide a reliable theoretical basis for the development of feed and mineral element supplementation for yaks at different ages.
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Affiliation(s)
- Yili Liu
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation, College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China; (Y.L.); (D.R.); (B.L.)
| | - Liangliang Ma
- College of Grassland Resources, Southwest Minzu University, Chengdu 610041, China;
| | - Daojie Riqing
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation, College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China; (Y.L.); (D.R.); (B.L.)
| | - Jiu Qu
- Agriculture and Rural Affairs Bureau of Naqu City, Naqu 852000, China; (J.Q.); (D.Z.)
| | - Jiyong Chen
- Yushu Prefecture Animal Disease Prevention and Control Center, Yushu 815000, China;
| | - Danzeng Zhandu
- Agriculture and Rural Affairs Bureau of Naqu City, Naqu 852000, China; (J.Q.); (D.Z.)
| | - Biao Li
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation, College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China; (Y.L.); (D.R.); (B.L.)
| | - Mingfeng Jiang
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation, College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China; (Y.L.); (D.R.); (B.L.)
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Rabee AE, Mohamed M Ghandour M, Sallam A, Elwakeel EA, Mohammed RS, Sabra EA, Abdel-Wahed AM, Mourad DM, Hamed AA, Hafez OR. Rumen fermentation and microbiota in Shami goats fed on condensed tannins or herbal mixture. BMC Vet Res 2024; 20:35. [PMID: 38297287 PMCID: PMC10829277 DOI: 10.1186/s12917-024-03887-2] [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: 09/18/2023] [Accepted: 01/17/2024] [Indexed: 02/02/2024] Open
Abstract
BACKGROUND Phytochemical compounds can modify the rumen microbiome and improve rumen fermentation. This study evaluated the impact of supplementation with tannin and an herbal mixture containing ginger (Zingiber officinale), garlic (Allium sativum), Artemisia (Artemisia vulgaris), and turmeric (Curcuma longa) on the rumen fermentation and microbiota, and histology of rumen tissue of goats. Eighteen Shami male goats were divided into three groups (n = 6): non-supplemented animals fed the basal diet (C, control); animals fed basal diet and supplemented with condensed tannin (T); and animals fed basal diet and supplemented with herbal mixture (HM). Each animal received a basal diet composed of Alfalfa hay and a concentrate feed mixture. RESULTS Group HM revealed higher (P < 0.05) rumen pH, total volatile fatty acids (VFA), acetic, propionic, isobutyric, butyric, isovaleric, and valeric. Principal Co-ordinate analysis (PCoA) showed that rumen microbial communities in the control group and supplemented groups were distinct. The supplementation increased (P < 0.05) the relative abundances of phylum Bacteroidota and Proteobacteria and declined (P < 0.05) Firmicutes and Fibrobacterota. Additionally, the dominant genus Prevotella and Rikenellaceae RC9 gut group were increased (P < 0.05) and the family Ruminococcaceae was declined (P < 0.05) due to the supplementation. The supplementation decreased (P < 0.05) the archaeal genus Methanobrevibacter and increased (P < 0.05) Candidatus Methanomethylophilus. Tannin supplementation in T group shortened the rumen papillae. CONCLUSIONS The results revealed that the herbal mixture might be used to alter the rumen microbiota to improve rumen fermentation.
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Affiliation(s)
- Alaa Emara Rabee
- Animal and Poultry Nutrition Department, Desert Research Center, Ministry of Agriculture and Land Reclamation, Cairo, Egypt.
| | - Moustafa Mohamed M Ghandour
- Animal and Poultry Nutrition Department, Desert Research Center, Ministry of Agriculture and Land Reclamation, Cairo, Egypt
| | - Ahmed Sallam
- Animal and Poultry Breeding Department, Desert Research Center, Cairo, Egypt
| | - Eman A Elwakeel
- Department of Animal and Fish production, Faculty of Agriculture, Alexandria University, Alexandria, Egypt
| | - Rasha S Mohammed
- Animal and Poultry Health Department, Desert Research Center, Ministry of Agriculture and Land Reclamation, Cairo, Egypt
| | - Ebrahim A Sabra
- Genetic Engineering and Biotechnology Research Institute, University of Sadat City, Sadat City, Egypt
| | - Adel M Abdel-Wahed
- Animal and Poultry Nutrition Department, Desert Research Center, Ministry of Agriculture and Land Reclamation, Cairo, Egypt
| | - Disouky Mohamed Mourad
- Animal and Poultry Health Department, Desert Research Center, Ministry of Agriculture and Land Reclamation, Cairo, Egypt
| | - Amal Amin Hamed
- Botany and Microbiology Department, Faculty of science, Cairo University, Cairo, Egypt
| | - Osama Raef Hafez
- Animal and Poultry Nutrition Department, Desert Research Center, Ministry of Agriculture and Land Reclamation, Cairo, Egypt
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Liu Y, Min Q, Tang J, Yang L, Meng X, Peng T, Jiang M. Transcriptome profiling in rumen, reticulum, omasum, and abomasum tissues during the developmental transition of pre-ruminant to the ruminant in yaks. Front Vet Sci 2023; 10:1204706. [PMID: 37808112 PMCID: PMC10556492 DOI: 10.3389/fvets.2023.1204706] [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: 04/12/2023] [Accepted: 08/29/2023] [Indexed: 10/10/2023] Open
Abstract
The development of the four stomachs of yak is closely related to its health and performance, however the underlying molecular mechanisms are largely unknown. Here, we systematically analyzed mRNAs of four stomachs in five growth time points [0 day, 20 days, 60 days, 15 months and 3 years (adult)] of yaks. Overall, the expression patterns of DEmRNAs were unique at 0 d, similar at 20 d and 60 d, and similar at 15 m and adult in four stomachs. The expression pattern in abomasum was markedly different from that in rumen, reticulum and omasum. Short Time-series Expression Miner (STEM) analysis demonstrated that multi-model spectra are drastically enriched over time in four stomachs. All the identified mRNAs in rumen, reticulum, omasum and abomasum were classified into 6, 4, 7, and 5 cluster profiles, respectively. Modules 9, 38, and 41 were the most significant three colored modules. By weighted gene co-expression network analysis (WGCNA), a total of 5,486 genes were categorized into 10 modules. CCKBR, KCNQ1, FER1L6, and A4GNT were the hub genes of the turquoise module, and PAK6, TRIM29, ADGRF4, TGM1, and TMEM79 were the hub genes of the blue module. Furthermore, functional KEGG enrichment analysis suggested that the turquoise module was involved in gastric acid secretion, sphingolipid metabolism, ether lipid metabolism, etc., and the blue module was enriched in pancreatic secretion, pantothenate and CoA biosynthesis, and starch and sucrose metabolism, etc. Our study aims to lay a molecular basis for the study of the physiological functions of rumen, reticulum, omasum and abomasum in yaks. It can further elucidate the important roles of these mRNAs in regulation of growth, development and metabolism in yaks, and to provide a theoretical basis for age-appropriate weaning and supplementary feeding in yaks.
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Affiliation(s)
- Yili Liu
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation, College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu, China
| | - Qi Min
- Institute of Qinghai-Tibetan Plateau, Southwest Minzu University, Chengdu, China
| | - Jiao Tang
- Institute of Qinghai-Tibetan Plateau, Southwest Minzu University, Chengdu, China
| | - Lu Yang
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation, College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu, China
| | - Xinxin Meng
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation, College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu, China
| | - Tao Peng
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation, College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu, China
| | - Mingfeng Jiang
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation, College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu, China
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Salzano A, Fioriniello S, D'Onofrio N, Balestrieri ML, Aiese Cigliano R, Neglia G, Della Ragione F, Campanile G. Transcriptomic profiles of the ruminal wall in Italian Mediterranean dairy buffaloes fed green forage. BMC Genomics 2023; 24:133. [PMID: 36941576 PMCID: PMC10029215 DOI: 10.1186/s12864-023-09215-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 02/28/2023] [Indexed: 03/23/2023] Open
Abstract
BACKGROUND Green feed diet in ruminants exerts a beneficial effect on rumen metabolism and enhances the content of milk nutraceutical quality. At present, a comprehensive analysis focused on the identification of genes, and therefore, biological processes modulated by the green feed in buffalo rumen has never been reported. We performed RNA-sequencing in the rumen of buffaloes fed a total mixed ration (TMR) + the inclusion of 30% of ryegrass green feed (treated) or TMR (control), and identified differentially expressed genes (DEGs) using EdgeR and NOISeq tools. RESULTS We found 155 DEGs using EdgeR (p-values < 0.05) and 61 DEGs using NOISeq (prob ≥0.8), 30 of which are shared. The rt-qPCR validation suggested a higher reliability of EdgeR results as compared with NOISeq data, in our biological context. Gene Ontology analysis of DEGs identified using EdgeR revealed that green feed modulates biological processes relevant for the rumen physiology and, then, health and well-being of buffaloes, such as lipid metabolism, response to the oxidative stress, immune response, and muscle structure and function. Accordingly, we found: (i) up-regulation of HSD17B13, LOC102410803 (or PSAT1) and HYKK, and down-regulation of CDO1, SELENBP1 and PEMT, encoding factors involved in energy, lipid and amino acid metabolism; (ii) enhanced expression of SIM2 and TRIM14, whose products are implicated in the immune response and defense against infections, and reduced expression of LOC112585166 (or SAAL1), ROR2, SMOC2, and S100A11, encoding pro-inflammatory factors; (iii) up-regulation of NUDT18, DNAJA4 and HSF4, whose products counteract stressful conditions, and down-regulation of LOC102396388 (or UGT1A9) and LOC102413340 (or MRP4/ABCC4), encoding detoxifying factors; (iv) increased expression of KCNK10, CACNG4, and ATP2B4, encoding proteins modulating Ca2+ homeostasis, and reduced expression of the cytoskeleton-related MYH11 and DES. CONCLUSION Although statistically unpowered, this study suggests that green feed modulates the expression of genes involved in biological processes relevant for rumen functionality and physiology, and thus, for welfare and quality production in Italian Mediterranean dairy buffaloes. These findings, that need to be further confirmed through the validation of additional DEGs, allow to speculate a role of green feed in the production of nutraceutical molecules, whose levels might be enhanced also in milk.
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Affiliation(s)
- Angela Salzano
- Department of Veterinary Medicine and Animal Production, Federico II University, Naples, Italy
| | | | - Nunzia D'Onofrio
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | | | | | - Gianluca Neglia
- Department of Veterinary Medicine and Animal Production, Federico II University, Naples, Italy
| | - Floriana Della Ragione
- Institute of Genetics and Biophysics 'A. Buzzati-Traverso', CNR, Naples, Italy.
- IRCCS Istituto Neurologico Mediterraneo Neuromed, Pozzilli, Isernia, Italy.
| | - Giuseppe Campanile
- Department of Veterinary Medicine and Animal Production, Federico II University, Naples, Italy
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Soltis MP, Moorey SE, Egert-McLean AM, Voy BH, Shepherd EA, Myer PR. Rumen Biogeographical Regions and Microbiome Variation. Microorganisms 2023; 11:microorganisms11030747. [PMID: 36985320 PMCID: PMC10057925 DOI: 10.3390/microorganisms11030747] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/01/2023] [Accepted: 03/11/2023] [Indexed: 03/15/2023] Open
Abstract
The rumen is a complex organ that is critical for its host to convert low-quality feedstuffs into energy. The conversion of lignocellulosic biomass to volatile fatty acids and other end products is primarily driven by the rumen microbiome and its interaction with the host. Importantly, the rumen is demarcated into five distinct rumen sacs as a result of anatomical structure, resulting in variable physiology among the sacs. However, rumen nutritional and microbiome studies have historically focused on the bulk content or fluids sampled from single regions within the rumen. Examining the rumen microbiome from only one or two biogeographical regions is likely not sufficient to provide a comprehensive analysis of the rumen microbiome and its fermentative capacity. Rumen biogeography, digesta fraction, and microbial rumen–tissue association all impact the diversity and function of the entirety of the rumen microbiome. Therefore, this review discusses the importance of the rumen biographical regions and their contribution to microbiome variation.
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Li M, Hassan F, Peng L, Xie H, Liang X, Huang J, Huang F, Guo Y, Yang C. Mulberry flavonoids modulate rumen bacteria to alter fermentation kinetics in water buffalo. PeerJ 2022; 10:e14309. [PMID: 36536626 PMCID: PMC9758972 DOI: 10.7717/peerj.14309] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 10/06/2022] [Indexed: 12/15/2022] Open
Abstract
Mulberry flavonoids can modulate the composition of rumen microbiota in ruminants to improve nutrient digestibility, owing to their strong biological activities. This study aimed to explore the effect of mulberry leaf flavonoids (MLF) on rumen bacteria, fermentation kinetics, and metagenomic functional profile in water buffalo. Forty buffaloes (4 ± 1 lactations) with almost same body weight (av. 600 ± 50 Kg) and days in milk (90 ± 20 d) were randomly allocated to four treatments having different levels of MLF: 0 g/d (control), 15 g/d (MLF15), 30 g/d (MLF30), and 45 g/d (MLF45) supplemented in a basal diet. After 35 days of supplementation, rumen contents were collected to determine rumen fermentation parameters. The 16S rRNA gene sequencing was performed to elucidate rumen bacteria composition. The obtained taxonomic data were analyzed to explore the rumen bacteriome and predict the associated gene functions and metabolic pathways. Results demonstrated a linear increase (p < 0.01) in rumen acetate, propionate, and total VFAs in the MLF45 group as compared to control. No effect of treatment was observed on rumen pH and butyrate contents. Acetate to propionate ratio in the MLF45 group linearly and quadratically decreased (p = 0.001) as compared to MLF15 and control groups. Similarly, MLF45 linearly increased (p < 0.05) the microbial protein (MCP) and NH3-N as compared to other treatments. Treatment adversely affected (p < 0.01) almost all alpha diversity parameters of rumen bacteria except Simpson index. MLF promoted the abundance of Proteobacteria while reducing the relative abundances of Actinobacteria, Acidobacteria, Chloroflexi, and Patescibacteria. The MLF supplementation tended to substantially reduce (0.05 < p < 0.1) the abundance of Actinobacteria, and Patescibacteria while completely eliminating Acidobacteria (p = 0.029), Chloroflexi (p = 0.059), and Gemmatimonadetes (p = 0.03) indicating the negative effect of flavonoids on the growth of these bacteria. However, MLF45 tended to substantially increase (p = 0.07) the abundance (~21.5%) of Acetobacter. The MLF treatment exhibited negative effect on five genera by significantly reducing (Sphingomonas) or eliminating (Arthobactor, unclassified_c__Actinobacteria, norank_c__Subgroup_6, norank_o__Saccharimonadales, and Nocardioides) them from the rumen microbiota. Pearson correlation analysis revealed 3, 5 and 23 positive correlations of rumen bacteria with milk yield, rumen fermentation and serum antioxidant parameters, respectively. A positive correlation of MCP was observed with three bacterial genera (Acetobacter, Enterobacter, and Klebsiella). The relative abundance of Pseudobutyrivibrio and Empedobacter also showed a positive correlation with the ruminal acetate and propionate. The present study indicated 45 g/d as an appropriate dose of MLF which modulated rumen bacteria and its functional profile in water buffalo.
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Affiliation(s)
- Mengwei Li
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Faizul Hassan
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, Guangxi, China
- Institute of Animal and Dairy Sciences, University of Agriculture, Faisalabad, Faisalabad, Punjab, Pakistan
| | - Lijuan Peng
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Huade Xie
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Xin Liang
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Jiaxiang Huang
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Feng Huang
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Yanxia Guo
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Chengjian Yang
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, Guangxi, China
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Wu JJ, Zhu S, Tang YF, Gu F, Liu JX, Sun HZ. Microbiota-host crosstalk in the newborn and adult rumen at single-cell resolution. BMC Biol 2022; 20:280. [PMID: 36514051 PMCID: PMC9749198 DOI: 10.1186/s12915-022-01490-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 12/01/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND The rumen is the hallmark organ of ruminants, playing a vital role in their nutrition and providing products for humans. In newborn suckling ruminants milk bypasses the rumen, while in adults this first chamber of the forestomach has developed to become the principal site of microbial fermentation of plant fibers. With the advent of single-cell transcriptomics, it is now possible to study the underlying cell composition of rumen tissues and investigate how this relates the development of mutualistic symbiosis between the rumen and its epithelium-attached microbes. RESULTS We constructed a comprehensive cell landscape of the rumen epithelium, based on single-cell RNA sequencing of 49,689 high-quality single cells from newborn and adult rumen tissues. Our single-cell analysis identified six immune cell subtypes and seventeen non-immune cell subtypes of the rumen. On performing cross-species analysis of orthologous genes expressed in epithelial cells of cattle rumen and the human stomach and skin, we observed that the species difference overrides any cross-species cell-type similarity. Comparing adult with newborn cattle samples, we found fewer epithelial cell subtypes and more abundant immune cells, dominated by T helper type 17 cells in the rumen tissue of adult cattle. In newborns, there were more fibroblasts and myofibroblasts, an IGFBP3+ epithelial cell subtype not seen in adults, while dendritic cells were the most prevalent immune cell subtype. Metabolism-related functions and the oxidation-reduction process were significantly upregulated in adult rumen epithelial cells. Using 16S rDNA sequencing, fluorescence in situ hybridization, and absolute quantitative real-time PCR, we found that epithelial Desulfovibrio was significantly enriched in the adult cattle. Integrating the microbiome and metabolome analysis of rumen tissues revealed a high co-occurrence probability of Desulfovibrio with pyridoxal in the adult cattle compared with newborn ones while the scRNA-seq data indicated a stronger ability of pyroxidal binding in the adult rumen epithelial cell subtypes. These findings indicate that Desulfovibrio and pyridoxal likely play important roles in maintaining redox balance in the adult rumen. CONCLUSIONS Our integrated multi-omics analysis provides novel insights into rumen development and function and may facilitate the future precision improvement of rumen function and milk/meat production in cattle.
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Affiliation(s)
- Jia-Jin Wu
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
- Ministry of Education Innovation Team of Development and Function of Animal Digestive System, Zhejiang University, Hangzhou, 310058, China
- Ministry of Education Key laboratory of Molecular Animal Nutrition, Zhejiang University, Hangzhou, 310058, China
| | - Senlin Zhu
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
- Ministry of Education Innovation Team of Development and Function of Animal Digestive System, Zhejiang University, Hangzhou, 310058, China
- Ministry of Education Key laboratory of Molecular Animal Nutrition, Zhejiang University, Hangzhou, 310058, China
| | - Yi-Fan Tang
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
- Ministry of Education Innovation Team of Development and Function of Animal Digestive System, Zhejiang University, Hangzhou, 310058, China
- Ministry of Education Key laboratory of Molecular Animal Nutrition, Zhejiang University, Hangzhou, 310058, China
| | - Fengfei Gu
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
- Ministry of Education Innovation Team of Development and Function of Animal Digestive System, Zhejiang University, Hangzhou, 310058, China
- Ministry of Education Key laboratory of Molecular Animal Nutrition, Zhejiang University, Hangzhou, 310058, China
| | - Jian-Xin Liu
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
- Ministry of Education Innovation Team of Development and Function of Animal Digestive System, Zhejiang University, Hangzhou, 310058, China
- Ministry of Education Key laboratory of Molecular Animal Nutrition, Zhejiang University, Hangzhou, 310058, China
| | - Hui-Zeng Sun
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China.
- Ministry of Education Innovation Team of Development and Function of Animal Digestive System, Zhejiang University, Hangzhou, 310058, China.
- Ministry of Education Key laboratory of Molecular Animal Nutrition, Zhejiang University, Hangzhou, 310058, China.
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Zhang N, Hu G, Guo K, Fu T, Lian H, Wang L, Gao T. Rumen bacteria and epithelial metabolism contribute to improving N utilization efficiency of calves. Anim Biotechnol 2022; 33:1480-1491. [PMID: 33847240 DOI: 10.1080/10495398.2021.1909056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The purpose of this study was to investigate the role of urea-N recycling, rumen bacterial community, and rumen epithelial gene expression in nitrogen utilization of calves. Here, 12 Holstein calves were divided into two dietary treatments: a high-protein diet (HP, 173 g/kg), and a low-protein diet (LP, 125 g/kg). Urea-N kinetics was evaluated using urea-15N15N isotope labeling method. Gene expression in rumen epithelium and liver, bacterial diversity, and metabolites in rumen were characterized using transcriptomic, Illumina HiSeq-based 16S rRNA, and LC/QTOF-MS-based metabolomics, respectively. We demonstrated that the bone weight, dressing percentage, and nitrogen utilization efficiency (NUE) increased in calves fed HP compared with LP. The urea synthesized, eliminated in urine, and return to ornithine cycle were higher in calves fed HP than LP, while the urea-N reused for anabolism were the opposite. Differentially expressed genes participated in amino acid metabolism and molecular transport in rumen epithelium. The increased abundance of bacteria and metabolites involved in protein and/or amino acid metabolism reflected the larger protein utilization in rumen of calves fed HP. In conclusion, the urea-N recycling could not fully compensate for the reduced NUE caused by N deficiency. Rumen bacteria and rumen epithelial metabolism contribute to improving NUE of calves.
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Affiliation(s)
- Ningning Zhang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, P. R. China
| | - Gaojie Hu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, P. R. China
| | - Kai Guo
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, P. R. China
| | - Tong Fu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, P. R. China
| | - Hongxia Lian
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, P. R. China
| | - Linfeng Wang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, P. R. China
| | - Tengyun Gao
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, P. R. China
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10
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Liu X, Sha Y, Lv W, Cao G, Guo X, Pu X, Wang J, Li S, Hu J, Luo Y. Multi-Omics Reveals That the Rumen Transcriptome, Microbiome, and Its Metabolome Co-regulate Cold Season Adaptability of Tibetan Sheep. Front Microbiol 2022; 13:859601. [PMID: 35495720 PMCID: PMC9043902 DOI: 10.3389/fmicb.2022.859601] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 02/28/2022] [Indexed: 01/04/2023] Open
Abstract
Tibetan sheep can maintain a normal life and reproduce in harsh environments under extreme cold and lack of nutrition. However, the molecular and metabolic mechanisms underlying the adaptability of Tibetan sheep during the cold season are still unclear. Hence, we conducted a comprehensive analysis of rumen epithelial morphology, epithelial transcriptomics, microbiology and metabolomics in a Tibetan sheep model. The results showed that morphological structure of rumen epithelium of Tibetan sheep in cold season had adaptive changes. Transcriptomics analysis showed that the differential genes were primarily enriched in the PPAR signaling pathway (ko03320), legionellosis (ko05134), phagosome (ko04145), arginine and proline metabolism (ko00330), and metabolism of xenobiotics by cytochrome P450 (ko00980). Unique differential metabolites were identified in cold season, such as cynaroside A, sanguisorbin B and tryptophyl-valine, which were mainly enriched in arachidonic acid metabolism, arachidonic acid metabolism and linolenic acid metabolism pathways, and had certain correlation with microorganisms. Integrated transcriptome-metabolome-microbiome analysis showed that epithelial gene-GSTM3 expression was upregulated in the metabolism of xenobiotics by the cytochrome P450 pathway during the cold season, leading to the downregulation of some harmful metabolites; TLR5 gene expression was upregulated and CD14 gene expression was downregulated in the legionellosis pathway during the cold season. This study comprehensively described the interaction mechanism between the rumen host and microbes and their metabolites in grazing Tibetan sheep during the cold season. Rumen epithelial genes, microbiota and metabolites act together in some key pathways related to cold season adaptation.
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Affiliation(s)
- Xiu Liu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Yuzhu Sha
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Weibing Lv
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Guizhong Cao
- Animal Husbandry and Veterinary Station in Huangyuan County, Xining, China
| | - Xinyu Guo
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Xiaoning Pu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Jiqing Wang
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Shaobin Li
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Jiang Hu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Yuzhu Luo
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
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11
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Zhu Y, Bu D, Ma L. Integration of Multiplied Omics, a Step Forward in Systematic Dairy Research. Metabolites 2022; 12:metabo12030225. [PMID: 35323668 PMCID: PMC8955540 DOI: 10.3390/metabo12030225] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 02/07/2023] Open
Abstract
Due to their unique multi-gastric digestion system highly adapted for rumination, dairy livestock has complicated physiology different from monogastric animals. However, the microbiome-based mechanism of the digestion system is congenial for biology approaches. Different omics and their integration have been widely applied in the dairy sciences since the previous decade for investigating their physiology, pathology, and the development of feed and management protocols. The rumen microbiome can digest dietary components into utilizable sugars, proteins, and volatile fatty acids, contributing to the energy intake and feed efficiency of dairy animals, which has become one target of the basis for omics applications in dairy science. Rumen, liver, and mammary gland are also frequently targeted in omics because of their crucial impact on dairy animals’ energy metabolism, production performance, and health status. The application of omics has made outstanding contributions to a more profound understanding of the physiology, etiology, and optimizing the management strategy of dairy animals, while the multi-omics method could draw information of different levels and organs together, providing an unprecedented broad scope on traits of dairy animals. This article reviewed recent omics and multi-omics researches on physiology, feeding, and pathology on dairy animals and also performed the potential of multi-omics on systematic dairy research.
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Affiliation(s)
- Yingkun Zhu
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
- School of Agriculture & Food Science, University College Dublin, Belfield, D04 V1W8 Dublin, Ireland
| | - Dengpan Bu
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
- Joint Laboratory on Integrated Crop-Tree-Livestock Systems of the Chinese Academy of Agricultural Sciences (CAAS), Ethiopian Institute of Agricultural Research (EIAR), and World Agroforestry Center (ICRAF), Beijing 100193, China
- Correspondence: (D.B.); (L.M.)
| | - Lu Ma
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
- Correspondence: (D.B.); (L.M.)
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12
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Wang X, Zhang D, Wang W, Lv F, Pang X, Liu G, Li F, Zhang X. Transcriptome profiling reveals differential gene expression in the rumen of Hu lambs at different developmental stages. Anim Biotechnol 2021:1-11. [PMID: 34607533 DOI: 10.1080/10495398.2021.1975728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The development of the rumen is a critical physiological challenge in newborn ruminants. However, the molecular mechanism underlying different stages of rumen development in sheep remains poorly understood. Here, RNA sequencing and bioinformatics analysis were performed to compare the transcription profiles of rumen development at 7, 28 and 56 days of birth (D7, D28 and D56). We identified 1246, 2257 and 627 differentially expressed genes (DEGs) between D7 and D28, between D7 and D56, between D28 and D56, respectively. Also, 70 DGEs were co-expressed at these three time points. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses indicated most DEGs mainly related to transporter activity, channel activity and metabolism pathways. Noteworthy, the expression levels of most genes (CA4, CA9, CA12 and CA14) in nitrogen metabolic pathways were negatively correlated with the papilla length and width, but the papilla length and width were positively correlated with the expression of genes (PLA2G3, SLC26A9, SLC34A3) in ion transport pathway, suggesting that these genes may be involved in nitrogen metabolic and ion transport pathway and thus affect rumen development. These results provide new insight into the changes in RNA expression at different time points of rumen development in Hu sheep.
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Affiliation(s)
- Xiaojuan Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Deyin Zhang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Weiming Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Feng Lv
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Xin Pang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Guohua Liu
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Fadi Li
- The State Key Laboratory of Grassland Agro-Ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China
| | - Xiaoxue Zhang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
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13
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Chai J, Lv X, Diao Q, Usdrowski H, Zhuang Y, Huang W, Cui K, Zhang N. Solid diet manipulates rumen epithelial microbiota and its interactions with host transcriptomic in young ruminants. Environ Microbiol 2021; 23:6557-6568. [PMID: 34490978 PMCID: PMC9292864 DOI: 10.1111/1462-2920.15757] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 09/03/2021] [Indexed: 11/28/2022]
Abstract
Solid diet supplementation in the early life stages of ruminants could improve rumen microbiota and tissue development. However, most studies focus on bacteria in the rumen content community. The microbiota attached on rumen epithelium are rarely investigated, and their correlations with rumen content bacteria and host transcripts are unknown. In this study, rumen digesta attached in the epithelium from goats in three diet regimes (milk replacer only, milk replacer supplemented concentrate and milk replacer supplemented concentrate plus alfalfa pellets) were collected for measurement of the epithelial microbiota using next generation sequencing. Correspondingly, the rumen tissues of the same animals were measured with the host transcriptome. The distinct microbial structures and compositions between rumen content and epithelial communities were associated with solid diet supplementation. Regarding rumen development in pre‐weaning ruminants, a solid diet, especially its accompanying neutral detergent fibre nutrients, was the most significant driver that influenced the rumen microbiota and epithelium gene expression. Compared with content bacteria, rumen epithelial microbiota had a stronger association with the host transcriptome. The host transcriptome correlated with host phenotypes were associated with rumen epithelial microbiota and solid diet. This study reveals that the epithelial microbiota is crucial for proper rumen development, and solid diet could improve rumen development through both the rumen content and epithelial microbiota.
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Affiliation(s)
- Jianmin Chai
- Feed Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Beijing, 100081, China.,Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Xiaokang Lv
- Feed Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Beijing, 100081, China
| | - Qiyu Diao
- Feed Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Beijing, 100081, China
| | - Hunter Usdrowski
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Yimin Zhuang
- Feed Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Beijing, 100081, China
| | - Wenqin Huang
- Feed Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Beijing, 100081, China
| | - Kai Cui
- Feed Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Beijing, 100081, China
| | - Naifeng Zhang
- Feed Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Beijing, 100081, China
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14
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Alqaisi O, Ali H, Al-Abri M, Johnson EH, Al-Marzooqi W. Effect of dietary concentrate content on feed intake, feed efficiency, and meat quality of Holstein steers fattened in a hot environment. Anim Sci J 2021; 92:e13547. [PMID: 33786940 DOI: 10.1111/asj.13547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 03/01/2021] [Accepted: 03/03/2021] [Indexed: 11/30/2022]
Abstract
The objective of this study was to investigate the effect of feeding high and low concentrate diets on feed intake and feed efficiency, the morphological characteristics of the rumen papillae, and meat quality of Holstein steers fattened under hot climate conditions in Oman. Ten male Holstein calves, of 5 months of age, were selected for the experiment. The animals were fed concentrate and Rhodes grass hay and were divided into two groups of high concentrate (HC, n = 5) and low concentrate diets (LC, n = 5), in which their feed intake, weight gain, and feed efficiency were evaluated across three growing periods. Feed intake and efficiency and average daily gain (ADG) of the HC group were significantly greater than for the LC group and were affected by the diet (p < .01) and the period (p < .001). Across the fattening periods, ADG declined in both groups, with ADG improved by 35% for steers on the HC diet compared to steers on the LC diet. Carcass meat quality was not affected significantly by the dietary concentrate level. In conclusion, our results can be used to make improvements in feed efficiency of Holstein steers under hot climate conditions.
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Affiliation(s)
- Othman Alqaisi
- Animal and Veterinary Sciences Department, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman
| | - Haytham Ali
- Animal and Veterinary Sciences Department, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman
| | - Mohammad Al-Abri
- Animal and Veterinary Sciences Department, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman
| | - Eugene H Johnson
- Animal and Veterinary Sciences Department, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman
| | - Waleed Al-Marzooqi
- Animal and Veterinary Sciences Department, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman
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15
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Gaowa N, Li W, Murphy B, Cox MS. The Effects of Artificially Dosed Adult Rumen Contents on Abomasum Transcriptome and Associated Microbial Community Structure in Calves. Genes (Basel) 2021; 12:424. [PMID: 33809523 PMCID: PMC7999174 DOI: 10.3390/genes12030424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/08/2021] [Accepted: 03/09/2021] [Indexed: 01/20/2023] Open
Abstract
This study aimed to investigate the changes in abomasum transcriptome and the associated microbial community structure in young calves with artificially dosed, adult rumen contents. Eight young bull calves were randomly dosed with freshly extracted rumen contents from an adult cow (high efficiency (HE), n = 4), or sterilized rumen content (Con, n = 4). The dosing was administered within 3 days of birth, then at 2, 4, and 6 weeks following the initial dosing. Abomasum tissues were collected immediately after sacrifice at 8 weeks of age. Five genera (Tannerella, Desulfovibrio, Deinococcus, Leptotrichia, and Eubacterium; p < 0.05) showed significant difference in abundance between the treatments. A total of 975 differentially expressed genes were identified (p < 0.05, fold-change > 1.5, mean read-counts > 5). Pathway analysis indicated that up-regulated genes were involved in immune system process and defense response to virus, while the down-regulated genes involved in ion transport, ATP biosynthetic process, and mitochondrial electron transport. Positive correlation (r > 0.7, p < 0.05) was observed between TRPM4 gene and Desulfovibrio, which was significantly higher in the HE group. TRPM4 had a reported role in the immune system process. In conclusion, the dosing of adult rumen contents to calves can alter not only the composition of active microorganisms in the abomasum but also the molecular mechanisms in the abomasum tissue, including reduced protease secretion and decreased hydrochloric acid secretion.
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Affiliation(s)
- Naren Gaowa
- State Key Laboratory of Animal Nutrition, Beijing Engineering Technology, Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian, Beijing 100193, China;
| | - Wenli Li
- The Cell Wall Utilization and Biology Laboratory, USDA Agricultural Research Service, US Dairy Forage Research Center, Madison, WI 53706, USA;
| | - Brianna Murphy
- The Cell Wall Utilization and Biology Laboratory, USDA Agricultural Research Service, US Dairy Forage Research Center, Madison, WI 53706, USA;
| | - Madison S. Cox
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI 53706, USA;
- Microbiology Doctoral Training Program, University of Wisconsin-Madison, Madison, WI 53706, USA
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16
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Petrič D, Mravčáková D, Kucková K, Kišidayová S, Cieslak A, Szumacher-Strabel M, Huang H, Kolodziejski P, Lukomska A, Slusarczyk S, Čobanová K, Váradyová Z. Impact of Zinc and/or Herbal Mixture on Ruminal Fermentation, Microbiota, and Histopathology in Lambs. Front Vet Sci 2021; 8:630971. [PMID: 33585621 PMCID: PMC7876273 DOI: 10.3389/fvets.2021.630971] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 01/08/2021] [Indexed: 11/13/2022] Open
Abstract
We investigated the effect of diets containing organic zinc and a mixture of medicinal herbs on ruminal microbial fermentation and histopathology in lambs. Twenty-eight lambs were divided into four groups: unsupplemented animals (Control), animals supplemented with organic zinc (Zn, 70 mg Zn/kg diet), animals supplemented with a mixture of dry medicinal herbs (Herbs, 100 g dry matter (DM)/d) and animals supplemented with both zinc and herbs (Zn+Herbs). Each lamb was fed a basal diet composed of meadow hay (700 g DM/d) and barley (300 g DM/d). The herbs Fumaria officinalis L. (FO), Malva sylvestris L. (MS), Artemisia absinthium L. (AA) and Matricaria chamomilla L. (MC) were mixed in equal proportions. The lambs were slaughtered after 70 d. The ruminal contents were used to determine the parameters of fermentation in vitro and in vivo and to quantify the microbes by molecular and microscopic methods. Samples of fresh ruminal tissue were used for histopathological evaluation. Quantitative analyses of the bioactive compounds in FO, MS, AA, and MC identified 3.961, 0.654, 6.482, and 12.084 g/kg DM phenolic acids and 12.211, 6.479, 0.349, and 2.442 g/kg DM flavonoids, respectively. The alkaloid content in FO was 6.015 g/kg DM. The diets affected the levels of total gas, methane and n-butyrate in vitro (P < 0.046, < 0.001, and < 0.001, respectively). Relative quantification by real-time PCR indicated a lower total ruminal bacterial population in the lambs in the Zn and Zn+Herbs groups than the Control group (P < 0.05). The relative abundances of Ruminococcus albus, R. flavefaciens, Streptococcus bovis, and Butyrivibrio proteoclasticus shifted in the Zn group. Morphological observation found a focally mixed infiltration of inflammatory cells in the lamina propria of the rumen in the Zn+Herbs group. The effect of the organic zinc and the herbal mixture on the parameters of ruminal fermentation in vitro was not confirmed in vivo, perhaps because the ruminal microbiota of the lambs adapted to the zinc-supplemented diets. Long-term supplementation of a diet combining zinc and medicinal herbs, however, may negatively affect the health of the ruminal epithelium of lambs.
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Affiliation(s)
- Daniel Petrič
- Institute of Animal Physiology, Centre of Biosciences of the Slovak Academy of Sciences, Košice, Slovakia
| | - Dominika Mravčáková
- Institute of Animal Physiology, Centre of Biosciences of the Slovak Academy of Sciences, Košice, Slovakia
| | - Katarína Kucková
- Institute of Animal Physiology, Centre of Biosciences of the Slovak Academy of Sciences, Košice, Slovakia
| | - Svetlana Kišidayová
- Institute of Animal Physiology, Centre of Biosciences of the Slovak Academy of Sciences, Košice, Slovakia
| | - Adam Cieslak
- Department of Animal Nutrition, Poznan University of Life Sciences, Poznan, Poland
| | | | - Haihao Huang
- Department of Animal Nutrition, Poznan University of Life Sciences, Poznan, Poland
| | - Pawel Kolodziejski
- Department of Animal Physiology, Biochemistry and Biostructure, Poznan University of Life Sciences, Poznan, Poland
| | - Anna Lukomska
- Department of Preclinical Sciences and Infectious Diseases, Poznan University of Life Sciences, Poznan, Poland
| | - Sylwester Slusarczyk
- Department of Pharmaceutical Biology and Botany, Wroclaw Medical University, Wroclaw, Poland
| | - Klaudia Čobanová
- Institute of Animal Physiology, Centre of Biosciences of the Slovak Academy of Sciences, Košice, Slovakia
| | - Zora Váradyová
- Institute of Animal Physiology, Centre of Biosciences of the Slovak Academy of Sciences, Košice, Slovakia
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17
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Response of plantain (Plantago lanceolata L.) supplementation on nutritional, endo-parasitic, and endocrine status in lambs. Trop Anim Health Prod 2021; 53:82. [PMID: 33411066 DOI: 10.1007/s11250-020-02514-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 12/07/2020] [Indexed: 10/22/2022]
Abstract
The aim of the present study was to assess the effects of plantain herb (Plantago lanceolata L.) supplementation on growth, plasma metabolites, liver enzymatic activity, hormonal status, gastrointestinal parasites, and carcass characteristics of lambs. A total of 24 lambs, aged 6 months weighing 8.0 ± 0.5 kg were randomly allocated to one of two dietary treatments: (1) CL diet-roadside grass and concentrate mixture; (2) PL diet-CL diet + 5% fresh plantain supplementation on a DM basis. The PL diet group exhibited 23% higher (P = 0.01) average daily gain and 15% improved (P = 0.03) feed conversion efficiency. Circulating cholesterol concentrations were suppressed by 9% (P = 0.03), and liver enzyme activity was improved by 5-25% (P < 0.05) in the lamb fed PL diet, compared with CL diet only. The inclusion of plantain in the diet was highly effective at suppressing the parasites, Paramphistomum spp. (P = 0.003) and coccidial parasites (P = 0.04), but not stomach worms. Moreover, plantain supplementation increased growth hormone and insulin concentrations in plasma level, whereas decreased carcass fat by 32.7%. Therefore, supplementation of the lambs' diet with plantain showed some beneficial effects on productivity and parasitic infection, while it led to a leaner carcass.
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18
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Spilinek S, Reitz R, Weckerly F. Rumen–reticulum organ mass and rumen mucosa surface area of white-tailed deer (Odocoileus virginianus) consuming two energy diets. CAN J ZOOL 2020. [DOI: 10.1139/cjz-2020-0043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Flexibility in gut morphology has fitness consequences in herbivores. To accommodate dietary variation in energy concentration, rumen–reticulum absorptive capacity and organ mass might also covary. We hypothesized that low energy diets result in greater food intake but lower volatile fatty acid concentrations. The consequence would be heavy rumen–reticulum organs and low absorptive capacity. We measured rumen–reticulum organ mass and absorptive capacity in captive white-tailed deer (Odocoileus virginianus (Zimmermann, 1780)) from central Texas, USA. Deer consumed a pelleted ration, ad libitum, of 1.77 kcal/g (low) or 2.67 kcal/g (standard) digestible energy from the time animals were weaned. In December, 4.5- and 5.5-year-old deer were euthanized, the rumen–reticulum was extracted, thoroughly rinsed, wrung out, and weighed. Four 1 cm × 3 cm samples were extracted from four regions of the rumen and mucosal surface area was measured. Our surrogate of food intake and mastication intensity was first molar height. Molar height was lower in animals consuming the low energy diet. Analyses indicated sex-specific responses. Males eating the low energy diet had heavier rumen–reticulum organs, but females did not. Females consuming the low energy diet had a lower surface enlargement factor, but males did not. The processes driving variation in rumen–reticulum morphology from dietary variation require further examination.
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Affiliation(s)
- S.G. Spilinek
- Department of Biology, Texas State University, San Marcos, TX 78666, USA
- Department of Biology, Texas State University, San Marcos, TX 78666, USA
| | - R. Reitz
- Department of Biology, Texas State University, San Marcos, TX 78666, USA
| | - F.W. Weckerly
- Department of Biology, Texas State University, San Marcos, TX 78666, USA
- Department of Biology, Texas State University, San Marcos, TX 78666, USA
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19
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Fiore E, Faillace V, Morgante M, Armato L, Gianesella M. A retrospective study on transabdominal ultrasound measurements of the rumen wall thickness to evaluate chronic rumen acidosis in beef cattle. BMC Vet Res 2020; 16:337. [PMID: 32933521 PMCID: PMC7493169 DOI: 10.1186/s12917-020-02561-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 09/08/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Chronic and subacute rumen acidosis are economically important in the beef industry. The aim of this study was to evaluate the potential suitability of the transabdominal ultrasonographic examination of the ruminal wall to diagnose chronic rumen acidosis in beef cattle compared to direct measurement of ruminal pH, as a fast non-invasive tool to be used in field condition. Ultrasonographic examination of the rumen was conducted in 478 beef cattle before rumenocentesis (chronic rumen acidosis group = pH ≤ 5.8; healthy group = pH ≥ 5.9). Rumen wall ultrasound measurements included rumen wall thickness (RWT) and rumen mucosa and submucosa thickness (RMST). RESULTS The Analysis of Variance showed the high significant effect of the pH class for RWT and RMST (P < 0.001). Spearman RANK correlation analysis showed interaction between rumen pH and RWT (- 0.71; P < 0.0001) and RMST (- 0.75; P < 0.0001). A significant Spearman's correlations were found between volatile fatty acids (VFA) and RWT and RMST. The differentiation efficiency of RWT between healthy and chronic rumen acidosis groups, as a result of the receiver operator curve (ROC) analysis, was quite good with an area under the receiver operator curve (AUROC) of 0.88: P < 0.0001; 95% CI: 0.83-0.98. Using a cut-off value of > 8.2 mm. The differentiation efficiency of RMST between healthy and chronic rumen acidosis groups, as a result of ROC curve analysis, was good with an AUROC of 0.90: p < 0.0001; 95% CI: 0.85-0.94. Using a cut-off value of > 5.3 mm. CONCLUSIONS In this study, the thickening of RWT and RMST is correlated with the changes of ruminal pH. Transabdominal rumen ultrasound has the potential to become a powerful diagnostic tool useful to identify fattening bulls affected by chronic rumen acidosis.
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Affiliation(s)
- Enrico Fiore
- Department of Animal Medicine, Productions and Health (MAPS), University of Padua, Viale dell'Università 16, 35020, Legnaro (PD), Italy
| | - Vanessa Faillace
- Department of Animal Medicine, Productions and Health (MAPS), University of Padua, Viale dell'Università 16, 35020, Legnaro (PD), Italy.
| | - Massimo Morgante
- Department of Animal Medicine, Productions and Health (MAPS), University of Padua, Viale dell'Università 16, 35020, Legnaro (PD), Italy
| | - Leonardo Armato
- Veterinary Freelance, Viale dell'Università 16, 35020 Legnaro (PD), Italy
| | - Matteo Gianesella
- Department of Animal Medicine, Productions and Health (MAPS), University of Padua, Viale dell'Università 16, 35020, Legnaro (PD), Italy
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Ma J, Shah AM, Wang Z, Hu R, Zou H, Wang X, Cao G, Peng Q, Xue B, Wang L, Zhao S, Kong X. Comparing the gastrointestinal barrier function between growth-retarded and normal yaks on the Qinghai-Tibetan Plateau. PeerJ 2020; 8:e9851. [PMID: 32953274 PMCID: PMC7474896 DOI: 10.7717/peerj.9851] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 08/11/2020] [Indexed: 12/14/2022] Open
Abstract
Background Yak (Bos grunniens) is an ancient bovine species on the Qinghai-Tibetan Plateau. Due to extremely harsh condition in the plateau, the growth retardation of yaks commonly exist, which can reduce the incomes of herdsman. The gastrointestinal barrier function plays a vital role in the absorption of nutrients and healthy growth. Functional deficiencies of the gastrointestinal barrier may be one of the contributors for yaks with growth retardation. Methods To this end, we compared the growth performance and gastrointestinal barrier function of growth-retarded (GRY) and normal yaks (GNY) based on average daily gain (ADG), serum parameters, tissue slice, real-time PCR, and western blotting, with eight yaks in each group. Results GRY exhibited lower (P < 0.05) average daily gain as compared to GNY. The diamine oxidase, D-lactic acid, and lipopolysaccharide concentrations in the serum of GRY were significantly higher (P < 0.05) than those of GNY. Compared to GNY, the papillae height in the rumen of GRY exhibited lower (P = 0.004). In jejunum, with the exception of higher villus height, width, and surface area in GNY, numerical difference (P = 0.61) was detected between two groups for crypt depth. Both in rumen and jejunum, the mRNA expression of interleukin-1beta in GRY was markedly higher (P < 0.05) than that in GNY, but an opposite trend was found in interleukin-10 expression. Moreover, GRY showed a higher (P < 0.05) tumor necrosis factor-alpha mRNA expression in the rumen. The claudin-1 (CLDN1), occludin (OCLN), and zonula occludens-1 (ZO1) expressions of GRY in rumen and jejunum were significantly down-regulated (P < 0.05) as compared to GNY. The correlation analysis identified that in rumen and jejunum, there was a positive correlation between interleukin-10 and CLDN1, OCLN, and ZO1 mRNA expressions, but the tumor necrosis factor-alpha was negatively correlated with CLDN1, OCLN, and ZO1. In the rumen, the ADG was positively correlated with papillae surface area, and a same relationship between ADG and CLDN1, OCLN, and ZO1 expressions was found. Conclusion The results indicated that the ruminal and jejunal barrier functions of GRY are disrupted as compared to GNY. In addition, our study provides a potential solution for promoting the growth of GRY by enhancing the gastrointestinal barrier function.
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Affiliation(s)
- Jian Ma
- Low Carbon Breeding Cattle and Safety Production University Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Ali Mujtaba Shah
- Low Carbon Breeding Cattle and Safety Production University Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Zhisheng Wang
- Low Carbon Breeding Cattle and Safety Production University Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Rui Hu
- Low Carbon Breeding Cattle and Safety Production University Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Huawei Zou
- Low Carbon Breeding Cattle and Safety Production University Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Xueying Wang
- Low Carbon Breeding Cattle and Safety Production University Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Guang Cao
- Low Carbon Breeding Cattle and Safety Production University Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Quanhui Peng
- Low Carbon Breeding Cattle and Safety Production University Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Bai Xue
- Low Carbon Breeding Cattle and Safety Production University Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Lizhi Wang
- Low Carbon Breeding Cattle and Safety Production University Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Suonan Zhao
- Haibei Demonstration Zone of Plateau Modern Ecological Animal Husbandry Science and Technology, Haibei, China
| | - Xiangying Kong
- Haibei Demonstration Zone of Plateau Modern Ecological Animal Husbandry Science and Technology, Haibei, China
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Leão AE, Coelho SG, Azevedo RA, Campos MM, Machado FS, Laguna JG, Ferreira AL, Pereira LGR, Tomich TR, de Fátima Costa S, Machado MA, de Lima Reis DR. Effect of pelleted vs. ground starter with or without hay on preweaned dairy calves. PLoS One 2020; 15:e0234610. [PMID: 32645008 PMCID: PMC7347148 DOI: 10.1371/journal.pone.0234610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 05/29/2020] [Indexed: 11/18/2022] Open
Abstract
The objective of this study was to evaluate the effect of the physical form of starter and inclusion of hay in the diet of preweaning dairy calves on performance, digestibility, ruminal development, and mRNA expression of genes involved in ruminal metabolism. Holstein × Gyr crossbred male calves (n = 38 1day old) were assigned to 3 treatments for 9 weeks: Control (n = 13; pellet starter with 4 mm diameter and 18 mm length and 4% steam-flaked corn), Ground (n = 12; same starter of the control but ground pass through a 4.0 mm sieve), or Ground plus 5% chopped Tifton hay GH (n = 13). All calves were fed 4 L/d of whole milk up to 63 d of age and were abruptly weaned at 64 d of age. Water and diets were offered ad libitum. Samples of ruminal contents were obtained from all animals at 30, 45, and 60 d of age to evaluate pH, ammonia nitrogen, and volatile fatty acids (VFA). At 55 d of age, an apparent digestibility assay was performed using 18 animals (n = 6/ treatment). At 65 d of age, the 18 animals were euthanized to evaluate the development of the digestive tract. The physical form of starter and the dietary inclusion of hay did not influence starter intake (Control 326 g/d, Ground 314 g/d and GH 365 g/d), daily weight gain (Control 541g/d, Ground 531g/d and GH 606g/d), feed efficiency, apparent nutrient digestibility, energy partitioning, nitrogen balance, ruminal pH, ammonia nitrogen concentration, VFA, the development of the digestive tract and the mRNA expression of genes involved in AGV metabolism.
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Affiliation(s)
- Aloma Eiterer Leão
- Department of Animal Science, Veterinary School, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Sandra Gesteira Coelho
- Department of Animal Science, Veterinary School, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- * E-mail:
| | - Rafael Alves Azevedo
- Department of Animal Science, Veterinary School, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | | | - Juliana Guimarães Laguna
- Department of Animal Sciences, Michigan State University, East Lansing, Michigan, United States of America
| | | | | | | | - Suely de Fátima Costa
- Department of Veterinary Medicine, Federal University of Lavras, Lavras, Minas Gerais, Brazil
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Qiu Q, Qiu X, Gao C, Muhammad AUR, Cao B, Su H. High-density diet improves growth performance and beef yield but affects negatively on serum metabolism and visceral morphology of Holstein steers. J Anim Physiol Anim Nutr (Berl) 2020; 104:1197-1208. [PMID: 32190937 DOI: 10.1111/jpn.13340] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/26/2019] [Accepted: 02/18/2020] [Indexed: 01/17/2023]
Abstract
The objective of this study was to evaluate the effect of different dietary densities on growth performance, carcass characteristics, meat quality, serum metabolism, ruminal papillae morphology and liver injuries of steers. For this purpose, a total of eighteen Holstein steers were randomly fed one of the three diets: high energy and protein diet (H), standard energy and protein diet (C), and low energy and protein diet (L) for 11 months fattening with three-step finishing strategy. Steers fed with H diet had higher (p < .05) average daily gain, feed efficiency, hot carcass weight, serum aspartate aminotransferase to alanine aminotransferase ratio, and monounsaturated fatty acids along with continuous low ruminal pH value, severer hepatic steatosis and ruminal papillae parakeratosis. Meanwhile, steers fed L diet increased the proportion of C20:0, C22:6n-3, saturated fatty acids and n-3 polyunsaturated fatty acids along with lower n-6 to n-3 ratio in longissimus dorsi muscle as compared to that of steers fed H diet. Dietary densities did not influence (p > .10) proximate nutrients and sensory characteristics of beef. The present study indicates that Holstein steers could achieve better growth and carcass performance under high-density diet, whereas they are under threat of visceral injuries and metabolic disorders. This study gives comprehensive relationship between productivity and animal health and suggests that a proper diet should be adopted for fattening Holstein steers in consideration of both beef quality and quantity and animal health.
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Affiliation(s)
- Qinghua Qiu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Xinjun Qiu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Chaoyu Gao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | | | - Binghai Cao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Huawei Su
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
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Cai J, Wang D, Zhao FQ, Liang S, Liu J. AMPK-mTOR pathway is involved in glucose-modulated amino acid sensing and utilization in the mammary glands of lactating goats. J Anim Sci Biotechnol 2020; 11:32. [PMID: 32166025 PMCID: PMC7060552 DOI: 10.1186/s40104-020-0434-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Accepted: 02/05/2020] [Indexed: 01/12/2023] Open
Abstract
Background The local supply of energy-yielding nutrients such as glucose seems to affect the synthesis of milk components in the mammary gland (MG). Thus, our study was conducted to investigate the effects of locally available MG glucose supply (LMGS) on amino acid (AA) sensing and utilization in the MG of lactating dairy goats. Six dosages of glucose (0, 20, 40, 60, 80, and 100 g/d) were infused into the MG through the external pudendal artery to investigate the dose-dependent changes in mammary AA uptake and utilization (Exp.1) and the changes in mRNA and protein expression of the AMPK-mTOR pathway (Expt.2). Results In Exp.1, total milk AA concentration was highest when goats were infused with 60 g/d glucose, but lower when goats were infused with 0 and 100 g/d glucose. Increasing LMGS quadratically changed the percentages of αS2-casein and α-lactalbumin in milk protein, which increased with infusions from 0 to 60 g/d glucose and then decreased with infusions between 60 and 100 g/d glucose. The LMGS changed the AA availability and intramammary gland AA utilization, as reflected by the mammary AA flux indexes. In Exp.2, the mRNA expression of LALBA in the MG increased quadratically with increasing LMGS, with the highest expression at dose of 60 g/d glucose. A high glucose dosage (100 g/d) activated the general control nonderepressible 2 kinase, an intracellular sensor of AA status, resulting in a reduced total milk AA concentration. Conclusions Our new findings suggest that the lactating MG in dairy goats may be affected by LMGS through regulation of the AA sensory pathway, AA utilization and protein synthesis, all being driven by the AMPK-mTOR pathway.
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Affiliation(s)
- Jie Cai
- 1Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, 310058 People's Republic of China
| | - Diming Wang
- 1Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, 310058 People's Republic of China
| | - Feng-Qi Zhao
- 1Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, 310058 People's Republic of China.,2Department of Animal and Veterinary Sciences, University of Vermont, Burlington, VT 05405 USA
| | - Shulin Liang
- 1Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, 310058 People's Republic of China
| | - Jianxin Liu
- 1Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, 310058 People's Republic of China
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de Melo AHF, Marques RS, Gouvêa VN, de Souza J, Batalha CDA, Basto DC, Millen DD, Drouillard JS, Santos FAP. Effects of dietary roughage neutral detergent fiber levels and flint corn processing method on growth performance, carcass characteristics, feeding behavior, and rumen morphometrics of Bos indicus cattle1. J Anim Sci 2019; 97:3562-3577. [PMID: 31181141 DOI: 10.1093/jas/skz197] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 06/07/2019] [Indexed: 11/14/2022] Open
Abstract
Flint corn processing method [coarse ground corn (CGC; 3.2 mm average particle size) or steam-flaked corn (SFC; 0.360 kg/L flake density)] was evaluated in conjunction with 4 levels of NDF from sugarcane bagasse (SCB) as roughage source (RNDF; 4%, 7%, 10%, and 13%; DM basis) to determine impact on growth performance, carcass characteristics, starch utilization, feeding behavior, and rumen morphometrics of Bos indicus beef cattle. Two hundred and forty Nellore bulls were blocked by initial BW (350 ± 37 kg), assigned to 32 feedlot pens and pens within weight block were randomly assigned, in a 2 × 4 factorial arrangement (2 corn processing and 4 levels of RNDF) to treatments. Effects of corn grain processing × RNDF level were not detected (P ≥ 0.14) for growth performance, dietary net energy concentration, carcass traits, rumen morphometrics, and feeding behavior, except for time spent ruminating and time spent resting (P ≤ 0.04), and a tendency for papillae width (P ≤ 0.09). Bulls fed SFC-based diets consumed 7% less (P = 0.001), had 10.6% greater carcass-adjusted ADG (P < 0.001) and 19% greater carcass-adjusted feed efficiency (P < 0.001) compared with bulls fed CGC-based diets. Observed net energy for maintenance and gain values were 14.9% and 19.4% greater (P < 0.001), respectively, for SFC than for CGC-based diets. Fecal starch concentration was less (P < 0.001) for bulls fed SFC compared with those fed CGC. No grain processing effects were detected (P = 0.51) for rumenitis score; however, cattle fed SFC presented smaller ruminal absorptive surface area (P = 0.03). Dry matter intake increased linearly (P = 0.02) and carcass-adjusted feed efficiency tended (P = 0.06) to decrease linearly as RNDF increased. Dietary RNDF concentration did not affect carcass characteristics (P ≥ 0.19), except for dressing percentage, which tended to decrease linearly (P = 0.06) as RNDF in finishing diets increased. Increasing RNDF in finishing diets had no effect (P = 0.26) on time spent eating, but time spent ruminating and resting increased linearly (min/d; P < 0.001) with increased dietary RNDF. Steam flaking markedly increased flint corn energy value, net energy of diets, and animal growth performance, and led to improvements on feed efficiency when compared with grinding, regardless of RNDF content of diets. Increasing dietary RNDF compromised feedlot cattle feed efficiency and carcass dressing.
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Affiliation(s)
| | - Rodrigo S Marques
- Eastern Oregon Agricultural Research Center, Oregon State University, Burns, OR
| | - Vinícius N Gouvêa
- "Luiz de Queiroz" College of Agriculture, University of São Paulo, Piracicaba, SP, Brazil
| | - Jonas de Souza
- "Luiz de Queiroz" College of Agriculture, University of São Paulo, Piracicaba, SP, Brazil
| | - Camila D A Batalha
- "Luiz de Queiroz" College of Agriculture, University of São Paulo, Piracicaba, SP, Brazil
| | - Débora C Basto
- "Luiz de Queiroz" College of Agriculture, University of São Paulo, Piracicaba, SP, Brazil
| | - Danilo D Millen
- College of Technology and Agricultural Sciences, São Paulo State University, Dracena, SP, Brazil
| | - James S Drouillard
- Department of Animal Sciences and Industry, Kansas State University, Manhattan, KS
| | - Flávio A P Santos
- "Luiz de Queiroz" College of Agriculture, University of São Paulo, Piracicaba, SP, Brazil
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Yang B, Chen H, Cao J, He B, Wang S, Luo Y, Wang J. Transcriptome Analysis Reveals That Alfalfa Promotes Rumen Development Through Enhanced Metabolic Processes and Calcium Transduction in Hu Lambs. Front Genet 2019; 10:929. [PMID: 31632445 PMCID: PMC6785638 DOI: 10.3389/fgene.2019.00929] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 09/05/2019] [Indexed: 12/29/2022] Open
Abstract
A healthy gut is very important for young animal development. The rumen of ruminants expands in size with the colonization of microbiota by 2 months of age. This process is promoted by alfalfa intervention. To elucidate the mechanism of this promotion, we performed transcriptomic analyses using a cohort of 23 lambs to evaluate the effects of starter diets plus alfalfa on the development of the rumen wall from the pre- to the postweaning period. The quantitative PCR analyses were used to validate selected genes that were differentially expressed in the transcriptome mapping. We found that several metabolic processes associated with rumen tissue development were affected by solid feed intake, with genes linked to the calcium signaling transduction pathway and the metabolism of pteridine-containing compounds and homocysteine metabolic process being upregulated in the group with alfalfa intervention. The results suggest that the pteridine-containing compounds and calcium signaling are targets for precise regulation of rumen development.
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Affiliation(s)
- Bin Yang
- MoE Key Laboratory of Molecular Animal Nutrition, Institution of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Hongwei Chen
- MoE Key Laboratory of Molecular Animal Nutrition, Institution of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Jiawen Cao
- MoE Key Laboratory of Molecular Animal Nutrition, Institution of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Bo He
- MoE Key Laboratory of Molecular Animal Nutrition, Institution of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Shanshan Wang
- MoE Key Laboratory of Molecular Animal Nutrition, Institution of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yang Luo
- MoE Key Laboratory of Molecular Animal Nutrition, Institution of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Jiakun Wang
- MoE Key Laboratory of Molecular Animal Nutrition, Institution of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, China
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Novak TE, Rodriguez-Zas SL, Southey BR, Starkey JD, Stockler RM, Alfaro GF, Moisá SJ. Jersey steer ruminal papillae histology and nutrigenomics with diet changes. J Anim Physiol Anim Nutr (Berl) 2019; 103:1694-1707. [PMID: 31483547 PMCID: PMC6899929 DOI: 10.1111/jpn.13189] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 07/29/2019] [Accepted: 07/30/2019] [Indexed: 12/11/2022]
Abstract
The transition from a high forage to a high concentrate diet is an important milestone for beef cattle moving from a stocker system to the feedlot. However, little is known about how this transition affects the rumen epithelial gene expression. This study assessed the effects of the transition from a high forage to a high concentrate diet as well as the transition from a high concentrate to a high forage diet on a variety of genes as well as ruminal papillae morphology in rumen fistulated Jersey steers. Jersey steers (n = 5) were fed either a high forage diet (80% forage and 20% grain) and transitioned to a high concentrate diet (20% forage and 80% grain) or a high concentrate diet (40% forage and 60% grain) and transitioned to a high forage diet (100% forage). Papillae from the rumen were collected for histology and RT‐qPCR analysis. Body weight had a tendency for significant difference (p = .08). Histological analysis did not show changes in papillae length or width in steers transitioning from a high forage to a high concentrate diet or vice versa (p > .05). Genes related to cell membrane structure (CLDN1, CLDN4, DSG1), fatty acid metabolism (CPT1A, ACADSB), glycolysis (PFKL), ketogenesis (HMGCL, HMGCS2, ACAT1), lactate/pyruvate (LDHA), oxidative stress (NQO1), tissue growth (AKT3, EGFR, EREG, IGFBP5, IRS1) and the urea cycle (SLC14A1) were considered in this study. Overall, genes related to fatty acid metabolism (ACADSB) and growth and development (AKT3 and IGFBP5) had a tendency for a treatment × day on trial interaction effect. These profiles may be indicators of rumen epithelial adaptations in response to changes in diet. In conclusion, these results indicate that changes in the composition of the diet can alter the expression of genes with specific functions in rumen epithelial metabolism.
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Affiliation(s)
- Taylor E Novak
- Department of Animal Sciences, Auburn University, Auburn, AL, USA
| | | | - Bruce R Southey
- Department of Animal Sciences, University of Illinois, Urbana, IL, USA
| | | | | | - Gastón F Alfaro
- Department of Animal Sciences, Auburn University, Auburn, AL, USA
| | - Sonia J Moisá
- Department of Animal Sciences, Auburn University, Auburn, AL, USA
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Xue M, Wang K, Wang A, Li R, Wang Y, Sun S, Yan D, Song G, Xu H, Sun G, Li M. MicroRNA Sequencing Reveals the Effect of Different Levels of Non-Fibrous Carbohydrate/Neutral Detergent Fiber on Rumen Development in Calves. Animals (Basel) 2019; 9:E496. [PMID: 31357699 PMCID: PMC6720277 DOI: 10.3390/ani9080496] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 07/24/2019] [Accepted: 07/26/2019] [Indexed: 02/06/2023] Open
Abstract
Rumen development in calves is affected by many factors, including dietary composition. MicroRNAs (miRNAs) are known to function in the development of the rumen in cattle, what is not known is how these miRNAs function in rumen development of calves fed with high and low ratios of non-fibrous carbohydrate (NFC)/neutral detergent fiber (NDF). A total of six healthy Charolais hybrids bull calves of similar weight were divided into two groups; three calves were fed a mixed diet with NFC/NDF = 1.35 (H group), and three were fed a mixed diet with NFC/NDF = 0.80 (L group). After 105 days on the diet, calves were sacrificed and rumen tissues were collected. Tissues were subjected to histological observation and miRNA expression analysis. Functional enrichment analysis was conducted on the target genes of the miRNAs. Targeting and regulatory relationships were verified by luciferase reporter assay and quantitative PCR (qPCR). We found that the length of rumen papilla in the L group was significantly greater than that in the H group, while the width of rumen papilla in H group was significantly greater than that that in L group. We identified 896 miRNAs; 540 known miRNAs, and 356 novel predicted miRNAs. After statistical testing, we identified 24 differentially expressed miRNAs (DEmiRNAs). miRNA-mRNA-cluster network analysis and literature reviews revealed that cell proliferation, differentiation, physical and nutrient stimuli processes participate in rumen development under different NFC/NDF levels. The regulatory relationships between three DEmiRNAs and five target genes were verified by examining the levels of expression. The binding sites on bta-miR-128 for the peroxisome proliferator activated receptor gamma (PPARG) and solute carrier family 16 member 1 (SLC16A1) genes were investigated using a dual luciferase assay. The results of this study provide insight into the role of miRNAs in rumen development in calves under different NFC/NDF levels.
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Affiliation(s)
- Mingming Xue
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Kejun Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Ansi Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Ruiting Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Yadong Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Shuaijie Sun
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Duo Yan
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Guohua Song
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Huifen Xu
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Guirong Sun
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China.
| | - Ming Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China.
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Sun HZ, Plastow G, Guan LL. Invited review: Advances and challenges in application of feedomics to improve dairy cow production and health. J Dairy Sci 2019; 102:5853-5870. [PMID: 31030919 DOI: 10.3168/jds.2018-16126] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Accepted: 03/02/2019] [Indexed: 12/22/2022]
Abstract
Dairy cattle science has evolved greatly over the past century, contributing significantly to the improvement in milk production achieved today. However, a new approach is needed to meet the increasing demand for milk production and address the increased concerns about animal health and welfare. It is now easy to collect and access large and complex data sets consisting of molecular, physiological, and metabolic data as well as animal-level data (such as behavior). This provides new opportunities to better understand the mechanisms regulating cow performance. The recently proposed concept of feedomics could help achieve this goal by increasing our understanding of interactions between the different components or levels and their impact on animal production. Feedomics is an emerging field that integrates a range of omics technologies (e.g., genomics, epigenomics, transcriptomics, proteomics, metabolomics, metagenomics, and metatranscriptomics) to provide these insights. In this way, we can identify the best strategies to improve overall animal productivity, product quality, welfare, and health. This approach can help research communities elucidate the complex interactions among nutrition, environment, management, animal genetics, metabolism, physiology, and the symbiotic microbiota. In this review, we summarize the outcomes of the most recent research on omics in dairy cows and highlight how an integrated feedomics approach could be applied in the future to improve dairy cow production and health. Specifically, we focus on 2 topics: (1) improving milk yield and milk quality, and (2) understanding metabolic physiology in transition dairy cows, which are 2 important challenges faced by the dairy industry worldwide.
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Affiliation(s)
- H Z Sun
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada, T6G 2P5
| | - G Plastow
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada, T6G 2P5
| | - L L Guan
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada, T6G 2P5.
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Hu R, Zou H, Wang Z, Cao B, Peng Q, Jing X, Wang Y, Shao Y, Pei Z, Zhang X, Xue B, Wang L, Zhao S, Zhou Y, Kong X. Nutritional Interventions Improved Rumen Functions and Promoted Compensatory Growth of Growth-Retarded Yaks as Revealed by Integrated Transcripts and Microbiome Analyses. Front Microbiol 2019; 10:318. [PMID: 30846981 PMCID: PMC6393393 DOI: 10.3389/fmicb.2019.00318] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Accepted: 02/06/2019] [Indexed: 12/11/2022] Open
Abstract
Growth retardation reduces the incomes of livestock farming. However, effective nutritional interventions to promote compensatory growth and the mechanisms involving digestive tract microbiomes and transcripts have yet to be elucidated. In this study, Qinghai plateau yaks, which frequently suffer from growth retardation due to malnutrition, were used as an experimental model. Young growth-retarded yaks were pastured (GRP), fed basal ration (GRB), fed basal ration addition cysteamine hydrochloride (CSH; GRBC) or active dry yeast (ADY; GRBY). Another group of growth normal yak was pastured as a positive control (GNP). After 60-day nutritional interventions, the results showed that the average daily gain (ADG) of GRB was similar to the level of GNP, and the growth rates of GRBC and GRBY were significantly higher than the level of GNP (P < 0.05). Basal rations addition of CSH or ADY either improved the serum biochemical indexes, decreased serum LPS concentration, facilitated ruminal epithelium development and volatile fatty acids (VFA) fermentation of growth-retarded yaks. Comparative transcriptome in rumen epithelium between growth-retarded and normal yaks identified the differentially expressed genes mainly enriched in immune system, digestive system, extracellular matrix and cell adhesion pathways. CSH addition and ADY addition in basal rations upregulated ruminal VFA absorption (SLC26A3, PAT1, MCT1) and cell junction (CLDN1, CDH1, OCLN) gene expression, and downregulated complement system (C2, C7) gene expression in the growth-retarded yaks. 16S rDNA results showed that CSH addition and ADY addition in basal rations increased the rumen beneficial bacterial populations (Prevotella_1, Butyrivibrio_2, Fibrobacter) of growth-retarded yaks. The correlation analysis identified that ruminal VFAs and beneficial bacteria abundance were significantly positively correlated with cell junction and VFA absorption gene expressions and negatively correlated with complement system gene expressions on the ruminal epithelium. Therefore, CSH addition and ADY addition in basal rations promoted rumen health and body growth of growth-retarded yaks, of which basal ration addition of ADY had the optimal growth-promoting effects. These results suggested that improving nutrition and probiotics addition is a more effective method to improve growth retardation caused by gastrointestinal function deficiencies.
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Affiliation(s)
- Rui Hu
- Key Laboratory of Low Carbon Culture and Safety Production in Cattle in Sichuan, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Huawei Zou
- Key Laboratory of Low Carbon Culture and Safety Production in Cattle in Sichuan, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Zhisheng Wang
- Key Laboratory of Low Carbon Culture and Safety Production in Cattle in Sichuan, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Binghai Cao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Quanhui Peng
- Key Laboratory of Low Carbon Culture and Safety Production in Cattle in Sichuan, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Xiaoping Jing
- Key Laboratory of Low Carbon Culture and Safety Production in Cattle in Sichuan, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Yixin Wang
- Institute of Animal Genetics and Breeding, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yaqun Shao
- Key Laboratory of Low Carbon Culture and Safety Production in Cattle in Sichuan, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Zhaoxi Pei
- Key Laboratory of Low Carbon Culture and Safety Production in Cattle in Sichuan, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Xiangfei Zhang
- Key Laboratory of Low Carbon Culture and Safety Production in Cattle in Sichuan, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Bai Xue
- Key Laboratory of Low Carbon Culture and Safety Production in Cattle in Sichuan, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Lizhi Wang
- Key Laboratory of Low Carbon Culture and Safety Production in Cattle in Sichuan, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Suonan Zhao
- Animal Husbandry and Veterinary Institute, Haibei, China
| | - Yuqing Zhou
- Animal Husbandry and Veterinary Institute, Haibei, China
| | - Xiangying Kong
- Animal Husbandry and Veterinary Institute, Haibei, China
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Lima TJ, Costa RG, de Medeiros GR, de Medeiros AN, Ribeiro NL, de Oliveira JS, Guerra RR, de Carvalho FFR. Ruminal and morphometric parameters of the rumen and intestines of sheep fed with increasing levels of spineless cactus (Nopalea cochenillifera Salm-Dyck). Trop Anim Health Prod 2019; 51:363-368. [PMID: 30168022 DOI: 10.1007/s11250-018-1697-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 08/22/2018] [Indexed: 10/28/2022]
Abstract
The objective of this study was to evaluate the ruminal parameters (pH, N-NH3, and microbial protein) and morphometry of the rumen and intestine of sheep fed with a diet containing four different levels of the spineless cactus variety, Baiana. The experiment was conducted at the National Semi-Arid Institute in Campina Grande, PB, Brazil. A total of 40 male sheep submitted to the confinement regime were used in a completely randomized design with four treatments (0, 15, 30, and 45% dry matter basis) and ten replicates, with an initial body weight of 23.7 ± 3.08 kg. Experimental diets were composed of ground corn, soybean meal, urea, mineral supplement, limestone, Tifton 85 hay, and spineless cactus of the Baiana variety. The pH, ammonia nitrogen, and microbial protein were evaluated in the ruminal fluid, alongside the morphometric characteristics of the rumen and intestine. While the addition of the spineless cactus did not affect N-NH3, it caused a linear reduction in the ruminal pH following 4 h of feeding, and also increased the microbial protein. In addition, it stimulated a reduction in the height of the papillae and the muscle layer of the rumen, and induced the mucosal height in the intestine to increase. The addition of up to 30% of spineless cactus in the diet of sheep without a defined breed did not alter the N-NH3, pH, and ruminal histology, but it did increase the production of microbial protein and intestinal mucosa.
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Hartwiger J, Schären M, Potthoff S, Hüther L, Kersten S, von Soosten D, Beineke A, Meyer U, Breves G, Dänicke S. Effects of a Change from an Indoor-Based Total Mixed Ration to a Rotational Pasture System Combined With a Moderate Concentrate Feed Supply on Rumen Fermentation of Dairy Cows. Animals (Basel) 2018; 8:ani8110205. [PMID: 30423821 PMCID: PMC6262550 DOI: 10.3390/ani8110205] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 11/05/2018] [Accepted: 11/07/2018] [Indexed: 02/04/2023] Open
Abstract
Simple Summary In temperate climate zones, cows are in spring traditionally transitioned from a silage and concentrate- ration to a pasture-based ration. This transition requires complex nutritional and metabolic adaptions for the cow, resulting in a lower feed intake with consequences on energy metabolism. Normally concentrate feed is supplied to support the cows after transition to pasture. Depending on weather influences and growing stage, grass contains high amounts of fast fermentable carbohydrates and low amounts of physical effective fiber. In a previous trial, pasture feeding combined with low amounts of concentrate supply did not prevent an energy shortage after transition to pasture but led to changes in ruminal fermentation patterns indicating a possible risk for rumen health. However, the impact of ration change has not been extensively researched so far when moderate concentrate feed was supplied moderately in order to prevent an energy deficiency. To investigate the influences different rumen variables were documented, using continuous pH measuring devices and weekly diurnal fermentation assessments in rumen fistulated animals. Influence on rumen epithelial morphology was measured by the collection of rumen papillae biopsies and subsequent surface area, as well as histopathological analyses. With the help of this data, a greater understanding of the adaption period of the animals during transition from confinement to pasture is made possible. Abstract In spring, transition from a total mixed ration (TMR) to pasture requires rumen adaptions for the cow. It had been shown that transition period does not necessarily mean an increased risk for subacute ruminal acidosis (SARA). After adaption to pasture, however, supplying low amounts of concentrate did indicate increased risk, but caused no adverse effects on rumen morphology and absorption capacity. The present study aimed to investigate the effect of transition, and how a supply of 4.5 kg dry matter concentrate·cow−1·day−1 during fulltime grazing influenced different rumen parameters. During a 12-week trial eleven rumen-cannulated dairy cows were observed during transition from confinement to pasture (PG; n = 6) and compared to cows fed TMR indoors (CG; n = 5). The CG stayed on a TMR based ration (35% corn silage, 35% grass silage, 30% concentrate; dry matter basis), whereas the PG slowly switched to a pasture-based ration (week 0 and 1 = TMR, week 2 = TMR and 3 h pasture·day−1, week 3 and 4 = TMR and 12 h pasture·day−1, and week 5 to 11 = pasture combined with 4.5 kg DM concentrate·cow−1·day−1). Papillae surface area decreased during transition and increased again during fulltime grazing, while the fractional absorption rate of volatile fatty acids (VFA) was not influenced. This suggests only a limited effect of papillae surface area on VFA absorption rate. Feeding changes resulted in different fermentation profiles of VFA. Changing ratio of starch to sugar during transition to fulltime grazing plus concentrate supply did not lead to lower rumen pH. In conclusion, the concentrate supply combined with high fermentable grass during fulltime grazing increased papillae surface area but did not affect absorption rate or rumen pH, so that risk for SARA was not increased.
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Affiliation(s)
- Julia Hartwiger
- Institute of Animal Nutrition, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 38116 Braunschweig, Germany.
| | - Melanie Schären
- Institute of Animal Nutrition, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 38116 Braunschweig, Germany.
- Clinic for Ruminants and Swine, Faculty of Veterinary Medicine, University of Leipzig, 04103 Leipzig, Germany.
| | - Sarah Potthoff
- Institute of Animal Nutrition, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 38116 Braunschweig, Germany.
| | - Liane Hüther
- Institute of Animal Nutrition, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 38116 Braunschweig, Germany.
| | - Susanne Kersten
- Institute of Animal Nutrition, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 38116 Braunschweig, Germany.
| | - Dirk von Soosten
- Institute of Animal Nutrition, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 38116 Braunschweig, Germany.
| | - Andreas Beineke
- Institute of Pathology, University of Veterinary Medicine Hannover, Foundation, 30559 Hannover, Germany.
| | - Ulrich Meyer
- Institute of Animal Nutrition, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 38116 Braunschweig, Germany.
| | - Gerhard Breves
- Institute of Physiology, University of Veterinary Medicine Hannover, Foundation, Bischofsholer, 30173 Hannover, Germany.
| | - Sven Dänicke
- Institute of Animal Nutrition, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 38116 Braunschweig, Germany.
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Sun HZ, Wang DM, Liu HY, Liu JX. Metabolomics Integrated with Transcriptomics Reveals a Subtle Liver Metabolic Risk in Dairy Cows Fed Different Crop By-products. Proteomics 2018; 18:e1800122. [DOI: 10.1002/pmic.201800122] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 06/11/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Hui-Zeng Sun
- Institute of Dairy Science, MoE Key Laboratory of Molecular Animal Nutrition; College of Animal Sciences; Zhejiang University; Hangzhou 310058 P. R. China
| | - Di-Ming Wang
- Institute of Dairy Science, MoE Key Laboratory of Molecular Animal Nutrition; College of Animal Sciences; Zhejiang University; Hangzhou 310058 P. R. China
| | - Hong-Yun Liu
- Institute of Dairy Science, MoE Key Laboratory of Molecular Animal Nutrition; College of Animal Sciences; Zhejiang University; Hangzhou 310058 P. R. China
| | - Jian-Xin Liu
- Institute of Dairy Science, MoE Key Laboratory of Molecular Animal Nutrition; College of Animal Sciences; Zhejiang University; Hangzhou 310058 P. R. China
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Wang B, Gu FF, Huang XB, Liu JX. The particulate passage rate, nutrient composition and fermentation characteristics across gastrointestinal tracts in lactating dairy cows fed three different forage source diets. J Anim Physiol Anim Nutr (Berl) 2018; 102:861-868. [PMID: 29671906 DOI: 10.1111/jpn.12906] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Accepted: 03/22/2018] [Indexed: 12/01/2022]
Abstract
This study was conducted to investigate the particulate passage rate, nutrient characteristics and fermentation parameters across the gastrointestinal tract (GIT) in lactating dairy cows fed cereal straws in comparison with alfalfa hay. Eighteen multiparous Holstein cows were randomly assigned to one of three experimental diets consisting of 55% concentrate, 15% corn silage and 30% different forage sources as follows (% of dry matter [DM]): (i) 23% alfalfa hay and 7% Chinese wild rye hay (AH); (ii) 30% corn stover (CS); and (iii) 30% rice straw (RS). The Cr-mordanted corn silage-neutral detergent fibre was used to estimate the passage flow at week 14. After 14-week feeding, the animals were slaughtered to collect the gastrointestinal digesta. Dietary forage sources had little effect on the fractional passage rates in the rumen (range from 5.05 to 6.25%/hr) or hindgut (range from 4.49 to 5.24%/hr). Total volatile fatty acid (VFA) concentration in the caecum was highest, followed by the rumen, colon and rectum, and the lowest in the abomasum and duodenum, indicating that the large intestines, especially caecum, are the important positions for carbohydrate degradation. Greater proportion of propionate and butyrate and lower acetate were found in the AH compared to CS or RS in colon, but higher acetate in abomasum was found in the cows fed CS or RS compared to AH. In conclusion, cereal straw diets did not change the particulate passage rate in the rumen and hindgut which might be mainly due to the similar DM intake among these three diets. Different forage source diets significantly changed VFA proportion in the abomasum and colon, indicating the existence of different digestion or absorption rates in these tracts among the experimental diets.
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Affiliation(s)
- B Wang
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - F F Gu
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - X B Huang
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - J X Liu
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, China
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34
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Wang B, Yang CT, Diao QY, Tu Y. The influence of mulberry leaf flavonoids and Candida tropicalis on antioxidant function and gastrointestinal development of preweaning calves challenged with Escherichia coli O141:K99. J Dairy Sci 2018; 101:6098-6108. [PMID: 29680656 DOI: 10.3168/jds.2017-13957] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Accepted: 03/10/2018] [Indexed: 01/11/2023]
Abstract
This study investigated the effects of mulberry (Morus alba L.) leaf flavonoids and Candida tropicalis on the growth, gastrointestinal development, enzyme activity of gastrointestinal digesta, and blood antioxidant function of dairy calves challenged with Escherichia coli O141:K99. A total of 15 Holstein preweaning bull calves (age = 28 d; body weight = 51 ± 3.9 kg, mean ± standard deviation) were randomly divided into 3 homogeneous groups with no supplementation (control, CON), Candida tropicalis added at 1 g/calf per day (CT), and mulberry leaf flavonoids added at 3 g/calf per day (MLF). The feed efficiency was greater in calves fed MLF than in CON either before or after the E. coli challenge test. The fecal score increased after E. coli challenge, but it was greater in the CON group than in the CT treatment and in the MLF group at d 1, 2, and 3 after the E. coli challenge. Calves fed the CT diet showed decreased blood β-hydroxybutyrate concentrations compared with those on the CON and MLF diets before the E. coli challenge. Dietary supplementation with CT resulted in lower blood superoxide dismutase activity than the CON after E. coli challenge. The calves fed CT and MLF showed much lower blood glutathione peroxidase activity than the CON group after being challenged with E. coli. The tunica mucosa of the duodenum was lower in CT and MLF than in CON. The lactase activity of the jejunal digesta was greater in MLF than in CON and CT. In summary, MLF and CT supplementation might effectively improve antioxidant function and reduce the incidence of oxidative stress after challenge with E. coli in 28-d-old preweaning calves, and this effect may be partially explained by the relative decreases in blood superoxide dismutase and glutathione peroxidase as well as fecal score.
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Affiliation(s)
- B Wang
- Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| | - C T Yang
- Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| | - Q Y Diao
- Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| | - Y Tu
- Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China.
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Mann E, Wetzels SU, Wagner M, Zebeli Q, Schmitz-Esser S. Metatranscriptome Sequencing Reveals Insights into the Gene Expression and Functional Potential of Rumen Wall Bacteria. Front Microbiol 2018; 9:43. [PMID: 29410661 PMCID: PMC5787071 DOI: 10.3389/fmicb.2018.00043] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 01/09/2018] [Indexed: 11/13/2022] Open
Abstract
Microbiota of the rumen wall constitute an important niche of rumen microbial ecology and their composition has been elucidated in different ruminants during the last years. However, the knowledge about the function of rumen wall microbes is still limited. Rumen wall biopsies were taken from three fistulated dairy cows under a standard forage-based diet and after 4 weeks of high concentrate feeding inducing a subacute rumen acidosis (SARA). Extracted RNA was used for metatranscriptome sequencing using Illumina HiSeq sequencing technology. The gene expression of the rumen wall microbial community was analyzed by mapping 35 million sequences against the Kyoto Encyclopedia for Genes and Genomes (KEGG) database and determining differentially expressed genes. A total of 1,607 functional features were assigned with high expression of genes involved in central metabolism, galactose, starch and sucrose metabolism. The glycogen phosphorylase (EC:2.4.1.1) which degrades (1->4)-alpha-D-glucans was among the highest expressed genes being transcribed by 115 bacterial genera. Energy metabolism genes were also highly expressed, including the pyruvate orthophosphate dikinase (EC:2.7.9.1) involved in pyruvate metabolism, which was covered by 177 genera. Nitrogen metabolism genes, in particular glutamate dehydrogenase (EC:1.4.1.4), glutamine synthetase (EC:6.3.1.2) and glutamate synthase (EC:1.4.1.13, EC:1.4.1.14) were also found to be highly expressed and prove rumen wall microbiota to be actively involved in providing host-relevant metabolites for exchange across the rumen wall. In addition, we found all four urease subunits (EC:3.5.1.5) transcribed by members of the genera Flavobacterium, Corynebacterium, Helicobacter, Clostridium, and Bacillus, and the dissimilatory sulfate reductase (EC 1.8.99.5) dsrABC, which is responsible for the reduction of sulfite to sulfide. We also provide in situ evidence for cellulose and cellobiose degradation, a key step in fiber-rich feed digestion, as well as oxidative stress response and oxygen scavenging at the rumen wall. Archaea, mainly Methanocaldococcus and Methanobrevibacter, were found to be metabolically active with a high number of transcripts matching to methane and carbohydrate metabolism. These findings enhance our understanding of the metabolic function of the bovine rumen wall microbiota.
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Affiliation(s)
- Evelyne Mann
- Department for Farm Animals and Veterinary Public Health, Institute of Milk Hygiene, Milk Technology and Food Science, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Stefanie U Wetzels
- Department for Farm Animals and Veterinary Public Health, Institute of Milk Hygiene, Milk Technology and Food Science, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Martin Wagner
- Department for Farm Animals and Veterinary Public Health, Institute of Milk Hygiene, Milk Technology and Food Science, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Qendrim Zebeli
- Department for Farm Animals and Veterinary Public Health, Institute of Animal Nutrition and Functional Plant Compounds, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Stephan Schmitz-Esser
- Department for Farm Animals and Veterinary Public Health, Institute of Milk Hygiene, Milk Technology and Food Science, University of Veterinary Medicine Vienna, Vienna, Austria.,Department of Animal Science, Iowa State University, Ames, IA, United States
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