What question did this study set out to answer?

This research aims to assess the relationship between forage intake, feed efficiency, and greenhouse gas emissions during lactation and gestation in beef cows.

May 31, 2026Translational Animal ScienceOpen Access

The relationship of forage intake, residual feed intake, and greenhouse gas emissions between lactation and gestation in beef cows

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Authors

STSamuel R TalleyOklahoma State University EBEmma A BriggsKansas State University BTBailey J TomsonOklahoma State University

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Implication

Randomized trial evaluates feed intake and emissions in beef cows, suggesting efficient feed use reduces intake without impacting productivity.

Key Points

This research aims to assess the relationship between forage intake, feed efficiency, and greenhouse gas emissions during lactation and gestation in beef cows.
Conducted over two years with 67 mature Angus and Angus-cross cows.
Cows were monitored for dry matter intake and emissions during 85-day lactation and gestation trials.
Used K-means clustering to categorize cows by feed efficiency based on residual feed intake.
Efficient cows consumed 18.8% less hay during lactation and 27.8% less during gestation compared to inefficient cows (P < 0.001).
Strong correlations were found between dry matter intake and residual feed intake across lactation and gestation (r = 0.82 and r = 0.68, respectively).
No significant differences in productivity metrics like body weight, gain, or milk yield were observed between feed efficiency classifications (P ≥ 0.52).

Cite This Study

Talley et al. (2026) studied this question.

synapsesocial.com/papers/6a1bd0fa5783ba022b6fcaaf https://doi.org/10.1093/tas/txag071

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Implication

Randomized trial evaluates feed intake and emissions in beef cows, suggesting efficient feed use reduces intake without impacting productivity.

The relationship of forage intake, residual feed intake, and greenhouse gas emissions between lactation and gestation in beef cows

Discussion

Member takes

Implication

Key Points

Cite This Study

The relationship of forage intake, residual feed intake, and greenhouse gas emissions between lactation and gestation in beef cows

Discussion

Member takes

Implication

Key Points

Cite This Study

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