Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

The net contribution of livestock to the supply of human edible protein: the case of Ireland

D. Hennessy; L. Shalloo; H.H.E. van Zanten; Marijke Schop; I.J.M. de Boer

The Journal of Agricultural Science · 2021

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Summary

This paper, authored by leading researchers in sustainable livestock systems, examines the efficiency of Irish livestock farming in converting feed resources into human-edible protein. By accounting for the protein content of feed inputs relative to protein outputs in meat and dairy products, the authors assess the net contribution of livestock to protein supply—a critical metric for evaluating the sustainability and nutritional role of pastoral farming systems. The work integrates agronomy and nutrition perspectives relevant to intensifying debate about livestock's role in food security.

UK applicability

Highly applicable to United Kingdom farming policy and practice, given comparable pastoral systems, climate, and regulatory frameworks. The methodology and findings would inform UK debate on sustainable protein production and land use efficiency in livestock farming.

Key measures

Net edible protein contribution; feed conversion ratios; land use efficiency; edible protein inputs versus outputs

Outcomes reported

The study quantified the net contribution of Irish livestock (particularly dairy and beef) to human edible protein supply by accounting for feed conversion efficiency and land use. It assessed whether livestock production generates a net gain or loss of edible protein available for human consumption when accounting for feed inputs.

Theme
Farming systems, soils & land use
Subject
Livestock nutrition & meat quality
Study type
Research
Study design
Field trial / Systems analysis
Source type
Peer-reviewed study
Status
Published
Geography
Ireland
System type
Mixed farming
DOI
10.1017/s0021859621000642
Catalogue ID
NRmo9rin9c-072

Topic tags

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