Influence of dietary organic trace minerals on enteric methane
                    emissions and rumen microbiota of heat-stressed dairy steers

Son, A-Rang; Islam, Mahfuzul; Kim, Seon‐Ho; Lee, Sung Sill; Lee, Sang-Suk

doi:10.5187/jast.2022.e100

Cited by 4 publications

(4 citation statements)

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“…Mineral bolus type was not associated with changes in the bacterial community composition or any rumen parameter. Our results are consistent with studies which have shown that mineral supplementation did not significantly alter bacterial abundances in dairy steers (Son et al, 2023) and yak (Bos grunniens) (Zhao et al, 2022). In contrast, other studies have shown a response to specific minerals.…”

Section: B a Figuresupporting

confidence: 92%

Rumen microbiome response to sustained release mineral bolus supplement with low- and high-quality forages

et al. 2023

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IntroductionLimited forage quantity and quality are challenges faced in livestock production systems in semi-arid rangelands of the western United States, particularly when livestock face stressors such as cold weather or have increased nutritional requirements such as during pregnancy and lactation. To meet livestock nutrient requirements, producers frequently provide supplemental nutrition, however there is limited knowledge regarding the effects of these practices on the rumen microbiome in these environments.MethodsA study was conducted to evaluate changes in the rumen microbiome in response to high- and low- quality forage with sustained release mineral boluses. The study consisted of 16 ruminally-cannulated 2–3-year-old black angus cows fed high quality grass alfalfa hay or low-quality grass hay with a 90 or 180 day sustained release mineral bolus. Rumen samples were collected pre-feeding and 8 hours post feeding and bacterial 16S rRNA gene amplicons were sequenced from the rumen fluid.ResultsAlpha diversity as measured by Shannon’s diversity index decreased significantly over time (p<0.01) and averaged 5.6 pre-feeding and 5.4 post- feeding and was not significantly different between high- and low-quality forages or between mineral bolus types (p>0.05). Principal coordinates analysis (PCoA) of the Bray-Curtis dissimilarity matrix showed distinct grouping by feed quality and time but not by mineral bolus type. Bacteroidetes and Firmicutes were the dominant phyla in all treatments and significant increases (p<0.05) in the relative abundance of the family Lachnospiraceae and the genus Prevotella were observed in high quality forage diets. Rumen VFA and NH3-N concentrations were also strongly associated with the high-quality forage diet. Predictive functional profiling indicated that functions associated with methanogenesis were negatively correlated with feed quality.DiscussionThe results of this study suggest that mineral bolus type is unlikely to affect rumen bacterial community structure or function while forage quality can significantly alter community structure and predicted functions associated with methanogenesis and VFA production.

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Section: B a Figuresupporting

confidence: 92%

Rumen microbiome response to sustained release mineral bolus supplement with low- and high-quality forages

et al. 2023

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“…Following a supplementation of lactating yaks with inorganic TM via slow release rumen boluses, some variations in the ruminal bacterial communities were observed, however the specific TM responsible for the changes was not clearly identified [86]. In a recent study with heatstressed dairy steer [77], supplementing high levels of organic TM (28 and 350 mg/kg DM of Cu and Zn as Cu-and Znglycinate, respectively), no effects were registered on enteric CH4 production or rumen methanogenic microbial populations [77].…”

Section: 6 Trace Mineral Effects On Rumen Microbiotamentioning

confidence: 99%

Ruminant Trace Minerals Deficiency and the Potential Link Between the Source and Rumen Interaction. A Review

Vigh¹,

Criste²,

Corcionivoschi³

et al. 2023

Preprint

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Dietary inclusion of trace minerals (TM), such as copper (Cu), manganese (Mn) and zinc (Zn) is of importance to cover the ever-evolving requirements for growth, production, and reproduction in ruminants. Various sources of TM are commercially available, such as inorganic (ITM), organic (OTM) or hydroxy (HTM) forms, however their bioavailability and efficiency to improve ruminant zootechnical parameters may be highly influenced by ruminal solubility and effects on the rumen environment. The objective of this review was to compile the most up-to-date information on the ruminal solubility of ITM, OTM and HTM, and their effects on fermentation parameters and rumen microbiota, aiming to support specialists from the animal feed industry when choosing TM products for ruminant supplementation. Some commonly used ITM sources, like sulfates, have a high ruminal solubility, while oxides are less soluble. The ruminal solubility of OTM is mostly found to be high, however data on these TM forms are still lacking. Regarding HTM, ruminal solubility is reported to be low, nevertheless results are inconsistent. Considering rumen fermentation, ITM show a negative effect, OTM might improve, while HTM do not affect parameters like dry matter degradability, volatile fatty acid production, pH, or microbial protein synthesis. As to rumen microbiota, ITM do not affect microbial populations; OTM could decrease abundance of some specific bacteria, like fibrolytic microorganisms, while studies with HTM are missing or inconclusive. Further research is necessary to better understand the ruminal solubility kinetics of TM sources and the different interactions with fermentation parameters and rumen microbiota to successfully apply precision TM supplementation of ruminants, tackling deficiency occurrences.

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“…Ruminant productivity is significantly impeded by unfavourable climatic circumstances, particularly HS. HS decreases the amount of dry matter intake, which in turn, impairs the metabolism of energy and protein, resulting in higher levels of metabolic disorder, mineral imbalance, and several other health issues [ 103 ]. The temperature–humidity index (THI) is frequently used to assess thermal comfort in dairy cows.…”

Section: Methane Emissions and Heat Stress In Dairy Cowmentioning

confidence: 99%

Relationship between Dairy Cow Health and Intensity of Greenhouse Gas Emissions

Džermeikaitė,

Krištolaitytė,

Antanaitis

2024

Animals

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The dairy industry is facing criticism for its role in exacerbating global GHG emissions, as climate change becomes an increasingly pressing issue. These emissions mostly originate from methane (CH4), nitrous oxide (N2O), and carbon dioxide (CO2). An optimal strategy involves the creation of an economical monitoring device to evaluate methane emissions from dairy animals. Livestock production systems encounter difficulties because of escalating food demand and environmental concerns. Enhancing animal productivity via nutrition, feeding management, reproduction, or genetics can result in a decrease in CH4 emissions per unit of meat or milk. This CH4 unit approach allows for a more accurate comparison of emissions across different animal production systems, considering variations in productivity. Expressing methane emissions per unit allows for easier comparison between different sources of emissions. Expressing emissions per unit (e.g., per cow) highlights the relative impact of these sources on the environment. By quantifying emissions on a per unit basis, it becomes easier to identify high-emission sources and target mitigation efforts accordingly. Many environmental policies and regulations focus on reducing emissions per unit of activity or output. By focusing on emissions per unit, policymakers and producers can work together to implement practices that lower emissions without sacrificing productivity. Expressing methane emissions in this way aligns with policy goals aimed at curbing overall greenhouse gas emissions. While it is true that total emissions affect the atmosphere globally, breaking down emissions per unit helps to understand the specific contributions of different activities and sectors to overall greenhouse gas emissions. Tackling cattle health issues can increase productivity, reduce GHG emissions, and improve animal welfare. Addressing livestock health issues can also provide favourable impacts on human health by reducing the prevalence of infectious illnesses in livestock, thereby mitigating the likelihood of zoonotic infections transmitting to humans. The progress in animal health offers the potential for a future in which the likelihood of animal diseases is reduced because of improved immunity, more effective preventative techniques, earlier identification, and innovative treatments. The primary objective of veterinary medicine is to eradicate clinical infectious diseases in small groups of animals. However, as the animal population grows, the emphasis shifts towards proactive treatment to tackle subclinical diseases and enhance production. Proactive treatment encompasses the consistent monitoring and implementation of preventive measures, such as vaccination and adherence to appropriate nutrition. Through the implementation of these measures, the livestock industry may enhance both animal well-being and mitigate the release of methane and nitrous oxide, thereby fostering environmental sustainability. In addition, advocating for sustainable farming methods and providing farmers with education on the significance of mitigating GHG emissions can bolster the industry’s endeavours to tackle climate change and infectious illnesses. This will result in a more robust and environmentally sustainable agriculture industry. This review seeks to conduct a thorough examination of the correlation between the health condition of cattle, the composition of milk produced, and the emissions of methane gas. It aims to identify areas where research is lacking and to provide guidance for future scientific investigations, policy making, and industry practices. The goal is to address the difficulties associated with methane emissions in the cattle industry. The primary global health challenge is to identify the causative relationship between climate change and infectious illnesses. Reducing CH4 and N2O emissions from digestive fermentation and animal manure can be achieved by improving animal well-being and limiting disease and mortality.

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Influence of dietary organic trace minerals on enteric methane emissions and rumen microbiota of heat-stressed dairy steers

Abstract: Influence of dietary organic trace minerals on enteric methane emissions and rumen microbiota of heat-stressed dairy steers

Cited by 4 publications

References 51 publications

Rumen microbiome response to sustained release mineral bolus supplement with low- and high-quality forages

Rumen microbiome response to sustained release mineral bolus supplement with low- and high-quality forages

Ruminant Trace Minerals Deficiency and the Potential Link Between the Source and Rumen Interaction. A Review

Relationship between Dairy Cow Health and Intensity of Greenhouse Gas Emissions

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