Angus Cow Methane Emissions and Health Data from Bromoform Supplementation Study

This dataset documents a study of 80 Angus cows (40 control, 40 supplemented) evaluating the effect of bromoform extract oil on methane emissions and health in a grazing system. It includes measurements of methane and carbon dioxide emissions, cow and calf body weights at multiple time points, and blood sample data. The study found methane reductions of 49.5% to 77.0% in the supplemented group over an 8-week period.

Use Cases

• Analyze the interaction between week and treatment on methane emissions to quantify the reduction efficacy of bromoform.
• Model the relationship between estimated dry matter intake and treatment group to assess feed efficiency impacts.
• Compare base excess concentration in blood between control and bromoform groups at Day 7 post-calving to evaluate metabolic effects.
• Track progeny growth from birth to Day 150 post-birth to investigate any carry-over effect of dam supplementation.

Strengths

• Data from a controlled study with 80 total animals (40 per treatment group), providing a basis for statistical comparison.
• Includes longitudinal measurements such as body weights at Calving, Day 7, Day 21, and Day 150 for calves.
• Quantifies greenhouse gas emissions (methane, carbon dioxide) using GreenFeed systems.

Limitations

• The dataset is very small in file size (18.7 KB), indicating limited raw data or a summary document rather than a full tabular dataset.
• Specific column names, row counts, and sample data are unavailable, limiting immediate analytical utility.
• Findings are specific to Angus cows in an extensive grazing system, which may limit generalizability to other breeds or production systems.

Provenance

Source

figshare, authored by Kellie M. Wenham.

Collection Method

Data collected from a controlled animal nutrition study using GreenFeed systems for emissions and manual measurements for health metrics.

Time Range

Covers late gestation through at least 150 days post-calving for progeny.

Freshness

Last updated March 20, 2026.

Geography

Study conducted in an extensive grazing system; specific location not provided.