keyword
https://read.qxmd.com/read/38536522/composition-of-the-rumen-microbiome-and-its-association-with-methane-yield-in-dairy-cattle-raised-in-tropical-conditions
#1
JOURNAL ARTICLE
Priscila Fregulia, Roberto Júnio Pedroso Dias, Mariana Magalhães Campos, Thierry Ribeiro Tomich, Luiz Gustavo Ribeiro Pereira, André Luis Alves Neves
BACKGROUND: Methane (CH4 ) emissions from rumen fermentation are a significant contributor to global warming. Cattle with high CH4 emissions tend to exhibit lower efficiency in milk and meat production, as CH4 production represents a loss of the gross energy ingested by the animal. The objective of this study was to investigate the taxonomic and functional composition of the rumen microbiome associated with methane yield phenotype in dairy cattle raised in tropical areas. METHODS AND RESULTS: Twenty-two Girolando (F1 Holstein x Gyr) heifers were classified based on their methane yield (g CH4 / kg dry matter intake (DMI)) as High CH4 yield and Low CH4 yield...
March 27, 2024: Molecular Biology Reports
https://read.qxmd.com/read/38529181/metagenomic-sequencing-identified-microbial-species-in-the-rumen-and-cecum-microbiome-responsible-for-niacin-treatment-and-related-to-intramuscular-fat-content-in-finishing-cattle
#2
JOURNAL ARTICLE
Zhuqing Yang, Xiao Chen, Mingjin Yu, Ruixue Jing, Linbin Bao, Xianghui Zhao, Ke Pan, Bihui Chao, Mingren Qu
INTRODUCTION: Niacin is one of the essential vitamins for mammals. It plays important roles in maintaining rumen microecological homeostasis. Our previous study indicated that dietary niacin significantly elevated intramuscular fat content (IMF) in castrated finishing steers. Whether niacin affects fat deposition by regulating the microbial composition and functional capacities of gastrointestinal microbiome has been unknown yet. METHODS: In this study, 16 castrated Xiangzhong Black cattle were randomly assigned into either control group fed with a basal concentrate diet ( n  = 8) or niacin group fed with a basal concentrate diet added 1000 mg/kg niacin ( n  = 8)...
2024: Frontiers in Microbiology
https://read.qxmd.com/read/38525720/%C3%AE-dicarbonyls-facilitate-engineered-microbial-bromoform-biosynthesis
#3
JOURNAL ARTICLE
Thomas D Loan, Claudia E Vickers, Michael Ayliffe, Ming Luo
Ruminant livestock produce around 24% of global anthropogenic methane emissions. Methanogenesis in the animal rumen is significantly inhibited by bromoform, which is abundant in seaweeds of the genus Asparagopsis . This has prompted the development of livestock feed additives based on Asparagopsis to mitigate methane emissions, although this approach alone is unlikely to satisfy global demand. Here we engineer a non-native biosynthesis pathway to produce bromoform in vivo with yeast as an alternative biological source that may enable sustainable, scalable production of bromoform by fermentation...
March 25, 2024: ACS Synthetic Biology
https://read.qxmd.com/read/38508273/novel-oxidising-feed-additives-reduce-in-vitro-methane-emissions-using-the-rumen-simulation-technique
#4
JOURNAL ARTICLE
Caroline O'Donnell, Camilla Thorn, Emily Roskam, Ruairi Friel, Stuart F Kirwan, Sinéad M Waters, Vincent O'Flaherty
Enteric methane (CH4 ) produced by ruminant livestock is a potent greenhouse gas and represents significant energy loss for the animal. The novel application of oxidising compounds as antimethanogenic agents with future potential to be included in ruminant feeds was assessed across two separate experiments in this study. Low concentrations of oxidising agents, namely urea hydrogen peroxide (UHP) with and without potassium iodide (KI), and magnesium peroxide (MgO2 ), were investigated for their effects on CH4 production, total gas production (TGP), volatile fatty acid (VFA) profiles, and nutrient disappearance in vitro using the rumen simulation technique...
March 18, 2024: Science of the Total Environment
https://read.qxmd.com/read/38480864/impact-of-rumen-microbiome-on-cattle-carcass-traits
#5
JOURNAL ARTICLE
Yoshiaki Sato, Ruki Sato, Emiko Fukui, Fumiaki Yoshizawa
Rumen microbes are crucial in the anaerobic fermentation of plant polysaccharides to produce volatile fatty acids. However, limited information exists about the specific microbial species and strains in the rumen that affect carcass traits, and it is unclear whether there is a relationship between rumen metabolic functions and these traits. This study investigated the relationship between the rumen microbiome and carcass traits in beef cattle using 16S rRNA amplicon and shotgun sequencing. Metagenomic sequencing was used to compare the rumen microbiome between high-carcass weight (HW) and low-carcass weight (LW) cattle, and high-marbling (HM) and low-marbling (LM) cattle...
March 13, 2024: Scientific Reports
https://read.qxmd.com/read/38473148/quantifying-the-impact-of-different-dietary-rumen-modulating-strategies-on-enteric-methane-emission-and-productivity-in-ruminant-livestock-a-meta-analysis
#6
JOURNAL ARTICLE
Bulelani N Pepeta, Abubeker Hassen, Eyob H Tesfamariam
A meta-analysis was conducted with an aim to quantify the beneficial effects of nine different dietary rumen modulating strategies which includes: the use of plant-based bioactive compounds (saponin, tannins, oils, and ether extract), feed additives (nitrate, biochar, seaweed, and 3-nitroxy propanol), and diet manipulation (concentrate feeding) on rumen fermentation, enteric methane (CH4 ) production (g/day), CH4 yield (g/kg dry matter intake) and CH4 emission intensity (g/kg meat or milk), and production performance parameters (the average daily gain, milk yield and milk quality) of ruminant livestock...
February 29, 2024: Animals: An Open Access Journal From MDPI
https://read.qxmd.com/read/38473122/the-effect-of-saponite-clay-on-ruminal-fermentation-parameters-during-in-vitro-studies
#7
JOURNAL ARTICLE
Alina Pikhtirova, Ewa Pecka-Kiełb, Bożena Króliczewska, Andrzej Zachwieja, Jarosław Króliczewski, Robert Kupczyński
Reducing the emission of global warming gases currently remains one of the strategic tasks. Therefore, the objective of our work was to determine the effect of saponite clay on fermentation in the rumen of cows. The pH, total gas production, CH4 , and volatile fatty acid (VFA) production in ruminal fluid was determined in vitro. Saponite clay from the Tashkiv deposit (Ukraine) has a high content of silicon, iron, aluminum, and magnesium. The addition of 0.15 and 0.25 g of saponite clay to the incubated mixture did not change the pH but reduced the total production (19% and 31%, respectively) and CH4 (24% and 46%, respectively) in the ruminal fluid compared to the control group and had no significant effect on the total VFA levels, but propionic acid increased by 15% and 21% and butyric acid decreased by 39% and 32%, respectively...
February 27, 2024: Animals: An Open Access Journal From MDPI
https://read.qxmd.com/read/38443469/dietary-supplementation-of-phytoncide-and-soybean-oil-increases-milk-conjugated-linoleic-acid-and-depresses-methane-emissions-in-holstein-dairy-cows
#8
JOURNAL ARTICLE
TaeBin Kim, MunHee Bae, JaeSung Lee, Jalil Ghassemi Nejad, HongGu Lee
The objective of this study was to determine whether adding phytoncide oil (PO) and soybean oil (SBO) to the dairy cow diet could increase milk conjugated linoleic acid (CLA) and depress methane (CH4 ) emissions in Holstein dairy cows. Rumen fermentation was conducted at four levels of SBO (0, 1, 2, and 4%, on DM basis) and two levels of PO (0 and 0.1%, on DM basis) with in vitro experiment. To evaluate blood parameters, fecal microbe population, milk yield and fatty acid compositions, and CH4 production, in vivo experiment was conducted using 38 Holstein dairy cows divided into two groups of control (fed TMR) and treatment (fed TMR with 0...
March 5, 2024: Scientific Reports
https://read.qxmd.com/read/38432010/crop-byproducts-supplemented-in-livestock-feeds-reduced-greenhouse-gas-emissions
#9
JOURNAL ARTICLE
Kun Wang, Chunmei Du, Xianfei Guo, Benhai Xiong, Liang Yang, Xin Zhao
Crop byproducts can be supplemented in livestock feeds to improve the utilization of resources and reduce greenhouse gas (GHG) emissions. We explored the mitigation potential of GHG emissions by supplementing crop byproducts in feeds based on a typical intensive dairy farm in China. Results showed that GHG emissions associated with production of forage were significantly decreased by 25.60 % when no GHG emissions were allocated to crop byproducts, and enteric methane emission was significantly decreased by 13...
March 2, 2024: Journal of Environmental Management
https://read.qxmd.com/read/38426060/effects-of-caragana-korshinskii-tannin-on-fermentation-methane-emission-community-of-methanogens-and-metabolome-of-rumen-in-sheep
#10
JOURNAL ARTICLE
Xiaoyu Niu, Yuanyaun Xing, Jingyao Wang, Lili Bai, Yongfang Xie, Shouqian Zhu, Mei Sun, Jing Yang, Dabiao Li, Yuanyuan Liu
The purpose of this research was to investigate the impact of dietary supplementation of Caragana korshinskii tannin (CKT) on rumen fermentation, methane emission, methanogen community and metabolome in rumen of sheep. A total of 15 crossbred sheep of the Dumont breed with similar body conditions, were divided into three groups ( n  = 5), which were fed with CKT addition at 0, 2 and 4%/kg DM. The study spanned a total of 74 days, with a 14-day period dedicated to adaptation and a subsequent 60-day period for conducting treatments...
2024: Frontiers in Microbiology
https://read.qxmd.com/read/38383931/flavonoids-from-citrus-peel-display-potential-synergistic-effects-on-inhibiting-rumen-methanogenesis-and-ammoniagenesis-a-microbiome-perspective
#11
JOURNAL ARTICLE
Shiqiang Yu, Yuchao Zhao, Liuxue Li, Huiying Zhao, Ming Liu, Linshu Jiang
Flavonoids have been recognized as potential phytochemicals to reduce enteric methane (CH4 ) production and improve rumen nitrogen efficiency in ruminants. We evaluated whether naringin, hesperidin, their combination, or a mixed citrus flavonoid extract (CFE) as additives can inhibit methanogenesis and ammoniagenesis in dairy cows using an in vitro rumen batch refermentation system. The rumen inocula from dairy cows were incubated in batch cultures with five groups: no addition (CON), hesperidin (20 g/kg DM), naringin (20 g/kg DM), hesperidin + naringin (10 g/kg DM of hesperidin + 10 g/kg DM of naringin), and CFE (20 g/kg DM)...
February 22, 2024: Environmental Science and Pollution Research International
https://read.qxmd.com/read/38380091/effects-of-dietary-d-lactate-levels-on-rumen-fermentation-microflora-and-metabolomics-of-beef-cattle
#12
JOURNAL ARTICLE
Qian Gao, Jianfu He, Jin Wang, Yonghui Yan, Lei Liu, Zuo Wang, Weijun Shen, Fachun Wan
INTRODUCTION: Excessive intake of lactate caused by improper use of silage in animal husbandry has adverse effects on rumen fermentation, such as rumen acidosis. The speed of absorption and metabolism of D -lactate in rumen epithelial cells was slower than that of L -lactate, making D -lactate more prone to accumulate and induce rumen acidosis. Therefore, this study was conducted to explore the effects of dietary D -lactate levels on rumen fermentation of beef cattle and its mechanism in an in vitro system...
2024: Frontiers in Microbiology
https://read.qxmd.com/read/38371425/use-of-methane-production-data-for-genetic-prediction-in-beef-cattle-a-review
#13
JOURNAL ARTICLE
Elizabeth A Dressler, Jennifer M Bormann, Robert L Weaber, Megan M Rolf
Methane (CH4 ) is a greenhouse gas that is produced and emitted from ruminant animals through enteric fermentation. Methane production from cattle has an environmental impact and is an energetic inefficiency. In the beef industry, CH4 production from enteric fermentation impacts all three pillars of sustainability: environmental, social, and economic. A variety of factors influence the quantity of CH4 produced during enteric fermentation, including characteristics of the rumen and feed composition. There are several methodologies available to either quantify or estimate CH4 production from cattle, all with distinct advantages and disadvantages...
2024: Translational Animal Science
https://read.qxmd.com/read/38370891/comparative-feed-management-system-in-sheep-fed-different-physical-forms-of-ration-containing-ipomoea-aquatica-on-the-performance-rumen-characteristics-and-chewing-activity
#14
JOURNAL ARTICLE
Retno Adiwinarti, Edy Rianto, Endang Purbowati, Vita Restitrisnani, Agung Purnomoadi
OBJECTIVE: This study investigated the effectiveness of different physical forms of feed containing Ipomoea aquatica waste and concentrate feed on the rumen characteristics, chewing activity, and performance of sheep. MATERIALS AND METHODS: Twenty-four rams (19.87 ± 2.19 kg) were arranged in a completely randomized design. Rams were fed dried I. aquatica waste and concentrate feed provided separately (RCF) (conventional feeding system), and total mixed ration consisted of mash complete feed (MCF), and pelleted complete feed (PCF)...
December 2023: Journal of Advanced Veterinary and Animal Research
https://read.qxmd.com/read/38370887/chemical-composition-and-in-vitro-rumen-fermentation-characteristics-of-various-tropical-seaweeds
#15
JOURNAL ARTICLE
Nur Hidayah, Cuk Tri Noviandi, Andriyani Astuti, Kustantinah Kustantinah
OBJECTIVE: This research aimed to evaluate potential tropical seaweed from Indonesia as an ingredient or supplement feed for ruminants based on chemical composition and in vitro rumen fermentation parameters. MATERIALS AND METHODS: The seven natural tropical seaweeds (three green and four red species) were collected from Ndrini and Sepanjang Beach, Gunungkidul, Yogyakarta, Indonesia. The experimental design on secondary metabolite profiles used a completely randomized design, and the in vitro gas production test used a randomized complete block design with seven seaweed species variances and four replications (blocks) based on rumen fluid collection time...
December 2023: Journal of Advanced Veterinary and Animal Research
https://read.qxmd.com/read/38370886/utilization-of-marigold-leaves-tagetes-erecta-l-in-rations-and-their-effect-on-rumen-enzyme-activity-fermentation-parameters-methane-emission-and-nutrient-digestibility-in-vitro
#16
JOURNAL ARTICLE
Chusnul Hanim, Moh Sofi'ul Anam, Lies Mira Yusiati, Muhsin Al Anas
OBJECTIVE: This study evaluated the utilization of marigold leaves (MGLs) in rations and their impact on rumen enzyme activity, fermentation parameters, methane (CH4 ) emission, and nutrient digestibility in vitro . MATERIALS AND METHODS: The experimental diets comprised different proportions of MGL incorporated into the dry matter (DM) rations. Experimental design: The MGL treatments in diets include 0% (MGL-0), 7% (MGL-7), and 14% (MGL-14). RESULTS: Results indicated that MGL-14 substantially raised ( p < 0...
December 2023: Journal of Advanced Veterinary and Animal Research
https://read.qxmd.com/read/38365243/distinct-microbial-hydrogen-and-reductant-disposal-pathways-explain-interbreed-variations-in-ruminant-methane-yield
#17
JOURNAL ARTICLE
Qiushuang Li, Zhiyuan Ma, Jiabin Huo, Xiumin Zhang, Rong Wang, Shizhe Zhang, Jinzhen Jiao, Xiyang Dong, Peter H Janssen, Emilio M Ungerfeld, Chris Greening, Zhiliang Tan, Min Wang
Ruminants are essential for global food security, but these are major sources of the greenhouse gas methane. Methane yield is controlled by the cycling of molecular hydrogen (H2), which is produced during carbohydrate fermentation and is consumed by methanogenic, acetogenic, and respiratory microorganisms. However, we lack a holistic understanding of the mediators and pathways of H2 metabolism and how this varies between ruminants with different methane-emitting phenotypes. Here, we used metagenomic, metatranscriptomic, metabolomics, and biochemical approaches to compare H2 cycling and reductant disposal pathways between low-methane-emitting Holstein and high-methane-emitting Jersey dairy cattle...
January 8, 2024: ISME Journal
https://read.qxmd.com/read/38348184/linkages-between-rumen-microbiome-host-and-environment-in-yaks-and-their-implications-for-understanding-animal-production-and-management
#18
REVIEW
Weiwei Wang, Yuntao Dong, Wei Guo, Xiao Zhang, A Allan Degen, Sisi Bi, Luming Ding, Xiang Chen, Ruijun Long
Livestock on the Qinghai-Tibetan Plateau is of great importance for the livelihood of the local inhabitants and the ecosystem of the plateau. The natural, harsh environment has shaped the adaptations of local livestock while providing them with requisite eco-services. Over time, unique genes and metabolic mechanisms (nitrogen and energy) have evolved which enabled the yaks to adapt morphologically and physiologically to the Qinghai-Tibetan Plateau. The rumen microbiota has also co-evolved with the host and contributed to the host's adaptation to the environment...
2024: Frontiers in Microbiology
https://read.qxmd.com/read/38338112/effects-of-dietary-crude-protein-level-of-concentrate-mix-on-growth-performance-rumen-characteristics-blood-metabolites-and-methane-emissions-in-fattening-hanwoo-steers
#19
JOURNAL ARTICLE
Joonpyo Oh, Hyunjin Cho, Sinyong Jeong, Kyewon Kang, Mingyung Lee, Seoyoung Jeon, Hamin Kang, Seongwon Seo
This study aimed to investigate the effect of varying levels of dietary crude protein (CP) on growth performance, rumen characteristics, blood metabolites, and methane emissions in fattening Hanwoo steers. Twenty-four steers, weighing 504 ± 33.0 kg (16 months old), were assigned to four dietary treatments with different CP concentrations (15, 18, 19, and 21% of CP on a dry matter (DM) basis). A linear increasing trend in the average daily gain (ADG) was observed ( p = 0.066). With increased dietary CP levels, the rumen ammonia concentration significantly increased ( p < 0...
January 31, 2024: Animals: An Open Access Journal From MDPI
https://read.qxmd.com/read/38313019/application-of-fenugreek-in-ruminant-feed-implications-for-methane-emissions-and-productivity
#20
REVIEW
Xiangbiao Zeng, Yiwen Chen, Wenjuan Li, Shijun Liu
BACKGROUND: Human demand for meat and dairy products will increase as a result of economic development and population growth, and the farming of ruminants, such as cattle and sheep, will also increase. Methane (CH4 ) emission from the enteric fermentation of ruminant livestock is a major source of greenhouse gas emissions and a significant contributor to global warming. Meanwhile, growth performance is often limited and animals are more vulnerable to diseases in high-density, intensive farming, greatly reducing livestock productivity, so developing ways to reduce CH4 emissions and improve ruminant productivity has become a research hotspot...
2024: PeerJ
keyword
keyword
171383
1
2
Fetch more papers »
Fetching more papers... Fetching...
Remove bar
Read by QxMD icon Read
×

Save your favorite articles in one place with a free QxMD account.

×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"

We want to hear from doctors like you!

Take a second to answer a survey question.