Comparative evaluation of data requirements and level of decision support provided by decision support tools for reducing livestock-related greenhouse gas emissions
“…At present, most farms had a high proportion of straw returning to the field, which improved soil carbon sequestration, thereby gradually reducing the contribution of net GHG emissions, which was a good start. 28 The synthetic fertilizer usage of rice was the highest among the staple crops, with an average of 324.56 kgN/hm 2 , followed by wheat and maize, which was also consistent with their GHG emission profiles ( Figures S5 and S6 ). The average GHG emissions of CCLP farms that grow three staple crops were higher than those of OCP farms, given that application of synthetic fertilizers is mostly higher.…”
Section: Resultssupporting
confidence: 77%
“… 26 Assuming the slaughter weight of 100 kg for each pig, the average GHG emission from livestock production of smallholder farmers did not exceed 2.12 kgCO 2 eq/kg carcass, which was far lower than the average level around China and the world. 27 , 28 Figure 3 GHG emissions in livestock enterprises and crop enterprises (A) GHG emissions per unit output value of OLP and CCLP farms in livestock production. (B) GHG emissions per unit pig equivalent of OLP and CCLP farms in livestock production.…”
“…At present, most farms had a high proportion of straw returning to the field, which improved soil carbon sequestration, thereby gradually reducing the contribution of net GHG emissions, which was a good start. 28 The synthetic fertilizer usage of rice was the highest among the staple crops, with an average of 324.56 kgN/hm 2 , followed by wheat and maize, which was also consistent with their GHG emission profiles ( Figures S5 and S6 ). The average GHG emissions of CCLP farms that grow three staple crops were higher than those of OCP farms, given that application of synthetic fertilizers is mostly higher.…”
Section: Resultssupporting
confidence: 77%
“… 26 Assuming the slaughter weight of 100 kg for each pig, the average GHG emission from livestock production of smallholder farmers did not exceed 2.12 kgCO 2 eq/kg carcass, which was far lower than the average level around China and the world. 27 , 28 Figure 3 GHG emissions in livestock enterprises and crop enterprises (A) GHG emissions per unit output value of OLP and CCLP farms in livestock production. (B) GHG emissions per unit pig equivalent of OLP and CCLP farms in livestock production.…”
“…Methane emissions result from both natural and human activities, including organic matter decomposition in wetlands, rice cultivation, landfilling, and the digestive processes of ruminants such as cows, sheep, and goats [2]. According to the Intergovernmental Panel on Climate Change, approximately 14.5% of global greenhouse gas emissions can be attributed to the agricultural sector, and enteric fermentation (i.e., methane emissions from livestock) is responsible for approximately 40% of these emissions [3]. As the global demand for meat and dairy products is expected to increase in the coming years, the problem of methane emissions from ruminants will intensify, making it imperative to reduce these emissions for environmental and economic reasons [4].…”
Section: Introductionmentioning
confidence: 99%
“…Polymers 2023, 15, x FOR PEER REVIEW 2 of 16 emissions from livestock) is responsible for approximately 40% of these emissions [3]. As the global demand for meat and dairy products is expected to increase in the coming years, the problem of methane emissions from ruminants will intensify, making it imperative to reduce these emissions for environmental and economic reasons [4].…”
Given the increasing concerns regarding greenhouse gas emissions associated with livestock production, the need to discover effective strategies to mitigate methane production in ruminants is clear. Marine algal polysaccharides have emerged as a promising research avenue because of their abundance and sustainability. Polysaccharides, such as alginate, laminaran, and fucoidan, which are extracted from marine seaweeds, have demonstrated the potential to reduce methane emissions by influencing the microbial populations in the rumen. This comprehensive review extensively examines the available literature and considers the effectiveness, challenges, and prospects of using marine seaweed polysaccharides as feed additives. The findings emphasise that marine algal polysaccharides can modulate rumen fermentation, promote the growth of beneficial microorganisms, and inhibit methanogenic archaea, ultimately leading to decreases in methane emissions. However, we must understand the long-term effects and address the obstacles to practical implementation. Further research is warranted to optimise dosage levels, evaluate potential effects on animal health, and assess economic feasibility. This critical review provides insights for researchers, policymakers, and industry stakeholders dedicated to advancing sustainable livestock production and methane mitigation.
“…Quantifying and mitigating the environmental impact of the livestock sector is part of global interest as it plays an important role in global climate change [3,4]. Although accurate estimation of greenhouse gas (GHG) emissions from livestock production systems is complex, there are several available tools to assist with the emissions estimation [5]. A rabbit breed's production efficiency depends on the feed conversion and quantity of meat.…”
Statistical surveys about rabbits in households brought interesting results about their breeding. The survey shows that approx. 8.3% of Slovak households breed rabbits, of which the majority are bred in the countryside (61%), followed by breeding in cities (35%), and 4% of households stated both options. As part of the investigation, information was also obtained on the method of breeding rabbits. The results showed that housing with the restriction of movement is the predominant breeding method. Housing without the restriction of movement is higher in cities compared to rural areas, while free breeding is absent in households for both options. The information on excrement recovery showed that approximately 59.5% of all farm waste is composted, 15.8% of respondents said that they apply farm excrement to the soil, and the remaining respondents did not answer. The post-processing survey results led to new estimates of methane and nitrous oxide emissions from domestic rabbit farming. The emissions were estimated using the methodology of the tier 2 approach outlined in the IPCC 2019 Refinement. The results indicated that rabbit breeding in households and farms in Slovakia generates an average of 0.51 Gg of methane and 0.13 Gg of nitrous oxide annually. Additionally, when free-range rabbit breeding is considered, emissions are 0.001 Gg of nitrous oxide. These greenhouse gas emissions from rabbit farming contribute to 7% of the total emissions from animal farming, ranking it as the third highest emitter after sheep. Consequently, it is imperative to prioritize the inclusion of this category in Slovakia’s national emissions report.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
