This dataset describes the performance of cattle in smallholder livestock systems of Bomet county in western Kenya. Information on live weight, milk production and quality, herd dynamics, and other production parameters were collected from field visits. Animals were weighed on scales; milk yield was recorded using a Mazzican® milk collection and transport vessel provided to each farm and milk was analyzed for butterfat content (%). Pasture biomass yield was determined, and feed samples collected for each agro-ecological zone and nutrient composition was determined for nitrogen (N) using the Kjeldahl method and gross energy (GE) using a bomb calorimeter. Distance covered while grazing was determined using GPS collars fitted to several animals for three consecutive days per area. Enteric methane (CH) emissions factors (EF) were estimated for five animal classes to develop site-specific EFs as per the Intergovernmental panel on climate change (IPCC) protocol. This dataset has the potential to be used, amongst other purposes, for animal-scale life cycle assessment (LCA) to evaluate the efficacy of various greenhouse gas (GHG) mitigation options.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8661481 | PMC |
| http://dx.doi.org/10.1016/j.dib.2021.107673 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Feed additives for methane mitigation: Assessment of feed additives as a strategy to mitigate enteric methane from ruminants-Accounting; How to quantify the mitigating potential of using antimethanogenic feed additives.
J Dairy Sci
January 2025
Wageningen University & Research, 6700 AH Wageningen, the Netherlands.
Recent advances in our understanding of methanogenesis have led to the development of antimethanogenic feed additives (AMFA) that can reduce enteric methane (CH) emissions to varying extents, via direct targeting of methanogens, alternative electron acceptors, or altering the rumen environment. Here we examine current and new approaches used for the accounting (i.e.
View Article and Find Full Text PDFFeed additives for methane mitigation: Regulatory frameworks and scientific evidence requirements for the authorization of feed additives to mitigate ruminant methane emissions.
J Dairy Sci
January 2025
Estación Experimental del Zaidín, CSIC, 18008 Granada, Spain.
This article describes the regulatory and evidence requirements necessary for the authorization of antimethanogenic feed additives (AMFA) aimed at mitigating enteric methane (CH) emissions from ruminants. It outlines the legislation and legal procedures in Australia, Canada, the European Union, New Zealand, South Korea, the United Kingdom, and the United States as illustrative examples, offering insights for applicants seeking authorization. Additionals objectives are to highlight consequential similarities and differences in regulations and evidence requirements and offer recommendations for scientists and applicants.
View Article and Find Full Text PDFFeed additives for methane mitigation: Modeling the impact of feed additives on enteric methane emission of ruminants-Approaches and recommendations.
J Dairy Sci
January 2025
Department of Animal Science, University of California, Davis, CA 95616. Electronic address:
Over the past decade, there has been considerable attention on mitigating enteric methane (CH) emissions from ruminants through the utilization of antimethanogenic feed additives (AMFA). Administered in small quantities, these additives demonstrate potential for substantial reductions of methanogenesis. Mathematical models play a crucial role in comprehending and predicting the quantitative impact of AMFA on enteric CH emissions across diverse diets and production systems.
View Article and Find Full Text PDFFeed additives for methane mitigation: Recommendations for testing enteric methane-mitigating feed additives in ruminant studies.
J Dairy Sci
January 2025
Department of Animal and Veterinary Sciences, Aarhus University, AU Viborg - Research Centre Foulum, 8830 Tjele, Denmark. Electronic address:
There is a need for rigorous and scientifically-based testing standards for existing and new enteric methane mitigation technologies, including antimethanogenic feed additives (AMFA). The current review provides guidelines for conducting and analyzing data from experiments with ruminants intended to test the antimethanogenic and production effects of feed additives. Recommendations include study design and statistical analysis of the data, dietary effects, associative effect of AMFA with other mitigation strategies, appropriate methods for measuring methane emissions, production and physiological responses to AMFA, and their effects on animal health and product quality.
View Article and Find Full Text PDFFeed additives for methane mitigation: Recommendations for identification and selection of bioactive compounds to develop antimethanogenic feed additives.
J Dairy Sci
January 2025
Estación Experimental del Zaidín, CSIC, 18008 Granada, Spain. Electronic address:
Despite the increasing interest in developing antimethanogenic additives to reduce enteric methane (CH) emissions and the extensive research conducted over the last decades, the global livestock industry has a very limited number of antimethanogenic feed additives (AMFA) available that can deliver substantial reduction, and they have generally not reached the market yet. This work provides technical recommendations and guidelines for conducting tests intended to screen the potential to reduce, directly or indirectly, enteric CH of compounds before they can be further assessed in in vivo conditions. The steps involved in this work cover the discovery, isolation, and identification of compounds capable of affecting CH production by rumen microbes, followed by in vitro laboratory testing of potential candidates.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!