Influence of postpartum disorders, parity, and season on estimated methane emissions in dairy cows in northwest of Spain.

ABSTRACT: This study evaluated the influence of postpartum disorders, parity, stage of lactation, and season on estimated enteric methane emissions in dairy cows from northwestern Spain using dairy herd improvement (DHI) data. A total of 2,440 lactating Holstein cows from 50 commercial dairy farms were included. Data from four official monthly DHI controls conducted in 2017 included daily milk yield, milk composition, parity, and postpartum disorders recorded within 21 days in milk. Methane emissions (MEE; g CH₄/day) were estimated using a prediction equation based on energy-corrected milk, and methane emission intensity (MEEI) was calculated as g CH₄/kg of daily milk yield. MEEI was highest in early lactation and declined as milk yield increased. Retained placenta, metritis, subclinical mastitis, a

SUBMITTER: Alvarez J 

PROVIDER: S-EPMC13627955 | biostudies-literature | 2026 Dec

REPOSITORIES: biostudies-literature