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

The effect of rearing strategy on the dry matter intake of pasture-based dairy heifers

H. Costigan; L. Delaby; S. Walsh; R. Fitzgerald; M. Liddane; N. Galvin; E. Kennedy

Livestock Science · 2025

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Summary

This field trial investigates the effects of contrasting rearing strategies on dry matter intake in pasture-based dairy heifers, a foundational metric for understanding heifer development and future lactation potential. The research appears to compare management approaches within grazing systems, contributing to evidence on optimising feed intake and growth trajectories in pasture-dependent dairy production. Findings may inform decisions on supplementation timing, housing protocols, or grazing management during the rearing phase.

Regional applicability

Given the Irish authorship and pasture-based focus, findings are likely highly applicable to UK dairy systems, particularly in regions with grass-based or mixed grazing protocols. Results may support evidence-based decisions on heifer rearing practices compatible with organic or low-input UK dairy farms.

Key measures

Dry matter intake (DMI), likely alongside growth performance metrics, feed conversion efficiency, and pasture utilisation measures

Outcomes reported

The study examined how different rearing strategies (likely varying pasture management, supplementation, or housing approaches) affect dry matter intake in dairy heifers managed on pasture-based systems. Dry matter intake is a key performance indicator linked to growth rates and subsequent dairy productivity.

Theme
Farming systems, soils & land use
Subject
Dairy & milk production
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
Geography
Ireland
System type
Dairy
DOI
10.1016/j.livsci.2025.105760
Catalogue ID
NRmo9zxr64-050

Topic tags

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